--- /dev/null
+The x86emu directory contains a copy of the xorg 8086 emulation library from\rthe X server. It's distributable under the MIT/X11 license, and so is\rcompatible with the ACK.\r\r
\ No newline at end of file
--- /dev/null
+The following is the 'standard copyright' agreed upon by most contributors,
+and is currently the canonical license preferred by the X.Org Foundation.
+This is a slight variant of the common MIT license form published by the
+Open Source Initiative at http://www.opensource.org/licenses/mit-license.php
+
+Copyright holders of new code should use this license statement where
+possible, and insert their name to this list. Please sort by surname
+for people, and by the full name for other entities (e.g. Juliusz
+Chroboczek sorts before Intel Corporation sorts before Daniel Stone).
+
+Copyright © 2011 Dave Airlie
+Copyright © 2000-2001 Juliusz Chroboczek
+Copyright © 1998 Egbert Eich
+Copyright © 2006-2007 Intel Corporation
+Copyright © 2006 Nokia Corporation
+Copyright © 2006-2008 Peter Hutterer
+Copyright © 2006 Adam Jackson
+Copyright © 2009-2010 NVIDIA Corporation
+Copyright © 1987, 2003-2006, 2008-2010 Oracle and/or its affiliates.
+Copyright © 1999 Keith Packard
+Copyright © 2007-2009 Red Hat, Inc.
+Copyright © 2005-2008 Daniel Stone
+Copyright © 2006-2009 Simon Thum
+Copyright © 2003-2008, 2013 Geert Uytterhoeven
+Copyright © 2006 Luc Verhaegen
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
+
+
+
+The following licenses are 'legacy': usually MIT/X11 licenses with the name
+of the copyright holder(s) in the license statement, but also some BSD-like
+licenses.
+
+
+Copyright (C) 1994-2003 The XFree86 Project, Inc. All Rights Reserved.
+Copyright (C) Colin Harrison 2005-2008
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FIT-
+NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the XFree86 Project shall not
+be used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the XFree86 Project.
+
+
+Copyright 1997 by The XFree86 Project, Inc.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of the XFree86 Project, Inc.
+not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission. The Xfree86
+Project, Inc. makes no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+THE XFREE86 PROJECT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID WEXELBLAT BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1985-1998, 2001 The Open Group
+Copyright 2002 Red Hat Inc., Durham, North Carolina.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+
+Copyright (c) 1987, 1989-1990, 1992-1995 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
+
+
+Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sub license, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice (including the
+next paragraph) shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+Copyright © 1999-2000 SuSE, Inc.
+Copyright © 2007 Red Hat, Inc.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of SuSE not be used in advertising or
+publicity pertaining to distribution of the software without specific,
+written prior permission. SuSE makes no representations about the
+suitability of this software for any purpose. It is provided "as is"
+without express or implied warranty.
+
+SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
+BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1987-1991, 1993 by Digital Equipment Corporation, Maynard, Massachusetts.
+Copyright 1991 Massachusetts Institute of Technology, Cambridge, Massachusetts.
+Copyright 1991, 1993 Olivetti Research Limited, Cambridge, England.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
+Copyright 1994 Quarterdeck Office Systems.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the names of Digital and
+Quarterdeck not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior
+permission.
+
+DIGITAL AND QUARTERDECK DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT
+OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE
+OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1997 Digital Equipment Corporation.
+All rights reserved.
+
+This software is furnished under license and may be used and copied only in
+accordance with the following terms and conditions. Subject to these
+conditions, you may download, copy, install, use, modify and distribute
+this software in source and/or binary form. No title or ownership is
+transferred hereby.
+
+1) Any source code used, modified or distributed must reproduce and retain
+ this copyright notice and list of conditions as they appear in the
+ source file.
+
+2) No right is granted to use any trade name, trademark, or logo of Digital
+ Equipment Corporation. Neither the "Digital Equipment Corporation"
+ name nor any trademark or logo of Digital Equipment Corporation may be
+ used to endorse or promote products derived from this software without
+ the prior written permission of Digital Equipment Corporation.
+
+3) This software is provided "AS-IS" and any express or implied warranties,
+ including but not limited to, any implied warranties of merchantability,
+ fitness for a particular purpose, or non-infringement are disclaimed.
+ In no event shall DIGITAL be liable for any damages whatsoever, and in
+ particular, DIGITAL shall not be liable for special, indirect,
+ consequential, or incidental damages or damages for lost profits, loss
+ of revenue or loss of use, whether such damages arise in contract,
+ negligence, tort, under statute, in equity, at law or otherwise, even
+ if advised of the possibility of such damage.
+
+
+Copyright (c) 1991, 1996-1997 Digital Equipment Corporation, Maynard, Massachusetts.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of Digital Equipment Corporation
+shall not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from Digital
+Equipment Corporation.
+
+
+SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
+Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice including the dates of first publication and
+either this permission notice or a reference to
+http://oss.sgi.com/projects/FreeB/
+shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+Copyright (c) 1994, 1995 Hewlett-Packard Company
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL HEWLETT-PACKARD COMPANY BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the Hewlett-Packard
+Company shall not be used in advertising or otherwise to promote the
+sale, use or other dealings in this Software without prior written
+authorization from the Hewlett-Packard Company.
+
+
+Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
+All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Hewlett-Packard not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.
+Copyright (c) 2003 by the XFree86 Project, Inc.
+Copyright 2004-2005 Red Hat Inc., Raleigh, North Carolina.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation on the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of the Software,
+and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice (including the
+next paragraph) shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+Copyright © 2008 Red Hat, Inc.
+Partly based on code Copyright © 2000 SuSE, Inc.
+
+Permission to use, copy, modify, distribute, and sell this software
+and its documentation for any purpose is hereby granted without
+fee, provided that the above copyright notice appear in all copies
+and that both that copyright notice and this permission notice
+appear in supporting documentation, and that the name of Red Hat
+not be used in advertising or publicity pertaining to distribution
+of the software without specific, written prior permission. Red
+Hat makes no representations about the suitability of this software
+for any purpose. It is provided "as is" without express or implied
+warranty.
+
+Red Hat DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+NO EVENT SHALL Red Hat BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of SuSE not be used in advertising or
+publicity pertaining to distribution of the software without specific,
+written prior permission. SuSE makes no representations about the
+suitability of this software for any purpose. It is provided "as is"
+without express or implied warranty.
+
+SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
+BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright © 2006 Red Hat, Inc.
+(C) Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sub license,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+RED HAT, INC, OR PRECISION INSIGHT AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
+OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+Copyright (c) 1995 X Consortium
+Copyright 2004 Red Hat Inc., Durham, North Carolina.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation on the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of the Software,
+and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT, THE X CONSORTIUM,
+AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium
+shall not be used in advertising or otherwise to promote the sale,
+use or other dealings in this Software without prior written
+authorization from the X Consortium.
+
+
+Copyright 1998-2000 Precision Insight, Inc., Cedar Park, Texas.
+Copyright 2000 VA Linux Systems, Inc.
+Copyright (c) 2002, 2008, 2009 Apple Computer, Inc.
+Copyright (c) 2003-2004 Torrey T. Lyons.
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sub license, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice (including the
+next paragraph) shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+(C) Copyright IBM Corporation 2003
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, and/or sell copies of the Software, and to permit persons to whom
+the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+(C) Copyright IBM Corporation 2004-2005
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sub license,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+IBM,
+AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+Copyright (c) 1997 Metro Link Incorporated
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+Except as contained in this notice, the name of the Metro Link shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from Metro Link.
+
+
+Copyright 1995-1998 by Metro Link, Inc.
+Copyright (c) 1997 Matthieu Herrb
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Metro Link, Inc. not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Metro Link, Inc. makes no
+representations about the suitability of this software for any purpose.
+ It is provided "as is" without express or implied warranty.
+
+METRO LINK, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL METRO LINK, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1998 by Metro Link Incorporated
+
+Permission to use, copy, modify, distribute, and sell this software
+and its documentation for any purpose is hereby granted without fee,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Metro Link
+Incorporated not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior
+permission. Metro Link Incorporated makes no representations
+about the suitability of this software for any purpose. It is
+provided "as is" without express or implied warranty.
+
+METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED BE
+LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
+DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+CONECTIVA LINUX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+Except as contained in this notice, the name of Conectiva Linux shall
+not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from
+Conectiva Linux.
+
+
+Copyright (c) 2001, Andy Ritger aritger@nvidia.com
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+o Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+o Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer
+ in the documentation and/or other materials provided with the
+ distribution.
+o Neither the name of NVIDIA nor the names of its contributors
+ may be used to endorse or promote products derived from this
+ software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
+NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+
+Copyright 1992 Vrije Universiteit, The Netherlands
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted, provided
+that the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of the Vrije Universiteit not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. The Vrije Universiteit makes no
+representations about the suitability of this software for any purpose.
+It is provided "as is" without express or implied warranty.
+
+The Vrije Universiteit DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL The Vrije Universiteit BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1998 by Concurrent Computer Corporation
+
+Permission to use, copy, modify, distribute, and sell this software
+and its documentation for any purpose is hereby granted without fee,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Concurrent Computer
+Corporation not be used in advertising or publicity pertaining to
+distribution of the software without specific, written prior
+permission. Concurrent Computer Corporation makes no representations
+about the suitability of this software for any purpose. It is
+provided "as is" without express or implied warranty.
+
+CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION BE
+LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
+DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+Copyright © 2004 Nokia
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Nokia not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Nokia makes no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+NOKIA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL NOKIA BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+(c)Copyright 1988,1991 Adobe Systems Incorporated.
+All rights reserved.
+
+Permission to use, copy, modify, distribute, and sublicense this software and its
+documentation for any purpose and without fee is hereby granted, provided that
+the above copyright notices appear in all copies and that both those copyright
+notices and this permission notice appear in supporting documentation and that
+the name of Adobe Systems Incorporated not be used in advertising or publicity
+pertaining to distribution of the software without specific, written prior
+permission. No trademark license to use the Adobe trademarks is hereby
+granted. If the Adobe trademark "Display PostScript"(tm) is used to describe
+this software, its functionality or for any other purpose, such use shall be
+limited to a statement that this software works in conjunction with the Display
+PostScript system. Proper trademark attribution to reflect Adobe's ownership
+of the trademark shall be given whenever any such reference to the Display
+PostScript system is made.
+
+ADOBE MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THE SOFTWARE FOR ANY
+PURPOSE. IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY. ADOBE
+DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-
+INFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL ADOBE BE LIABLE TO YOU
+OR ANY OTHER PARTY FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+DAMAGES WHATSOEVER WHETHER IN AN ACTION OF CONTRACT,NEGLIGENCE, STRICT
+LIABILITY OR ANY OTHER ACTION ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE. ADOBE WILL NOT PROVIDE ANY TRAINING OR OTHER
+SUPPORT FOR THE SOFTWARE.
+
+Adobe, PostScript, and Display PostScript are trademarks of Adobe Systems
+Incorporated which may be registered in certain jurisdictions.
+
+
+Copyright 1989 Network Computing Devices, Inc., Mountain View, California.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted, provided
+that the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of N.C.D. not be used in advertising or
+publicity pertaining to distribution of the software without specific,
+written prior permission. N.C.D. makes no representations about the
+suitability of this software for any purpose. It is provided "as is"
+without express or implied warranty.
+
+
+Copyright (c) 1987 by the Regents of the University of California
+
+Permission to use, copy, modify, and distribute this
+software and its documentation for any purpose and without
+fee is hereby granted, provided that the above copyright
+notice appear in all copies. The University of California
+makes no representations about the suitability of this
+software for any purpose. It is provided "as is" without
+express or implied warranty.
+
+
+Copyright 1992, 1993 Data General Corporation;
+Copyright 1992, 1993 OMRON Corporation
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that the
+above copyright notice appear in all copies and that both that copyright
+notice and this permission notice appear in supporting documentation, and that
+neither the name OMRON or DATA GENERAL be used in advertising or publicity
+pertaining to distribution of the software without specific, written prior
+permission of the party whose name is to be used. Neither OMRON or
+DATA GENERAL make any representation about the suitability of this software
+for any purpose. It is provided "as is" without express or implied warranty.
+
+OMRON AND DATA GENERAL EACH DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+IN NO EVENT SHALL OMRON OR DATA GENERAL BE LIABLE FOR ANY SPECIAL, INDIRECT
+OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+OF THIS SOFTWARE.
+
+
+Copyright © 1998-2004, 2006 Keith Packard
+Copyright © 2000-2002 Keith Packard, member of The XFree86 Project, Inc.
+Copyright (c) 2002 Apple Computer, Inc.
+Copyright (c) 2003 Torrey T. Lyons.
+All Rights Reserved.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Keith Packard not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Keith Packard makes no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright © 1999 Keith Packard
+Copyright © 2000 Compaq Computer Corporation
+Copyright © 2002 MontaVista Software Inc.
+Copyright © 2005 OpenedHand Ltd.
+Copyright © 2006 Nokia Corporation
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of the authors and/or copyright holders
+not be used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission. The authors and/or
+copyright holders make no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+THE AUTHORS AND/OR COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS, IN NO EVENT SHALL THE AUTHORS AND/OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1993 by Davor Matic
+
+Permission to use, copy, modify, distribute, and sell this software
+and its documentation for any purpose is hereby granted without fee,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation. Davor Matic makes no representations about
+the suitability of this software for any purpose. It is provided "as
+is" without express or implied warranty.
+
+
+Copyright (C) 2001-2004 Harold L Hunt II All Rights Reserved.
+Copyright (C) Colin Harrison 2005-2008
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of Harold L Hunt II
+shall not be used in advertising or otherwise to promote the sale, use
+or other dealings in this Software without prior written authorization
+from Harold L Hunt II.
+
+
+Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Thomas Roell not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Thomas Roell makes no representations
+about the suitability of this software for any purpose. It is provided
+"as is" without express or implied warranty.
+
+THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL THOMAS ROELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
+Copyright 1993 by David Wexelblat <dwex@goblin.org>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the names of Thomas Roell and David Wexelblat
+not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission. Thomas Roell and
+David Wexelblat makes no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+THOMAS ROELL AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL THOMAS ROELL OR DAVID WEXELBLAT BE LIABLE FOR
+ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1990,91,92,93 by Thomas Roell, Germany.
+Copyright 1991,92,93 by SGCS (Snitily Graphics Consulting Services), USA.
+
+Permission to use, copy, modify, distribute, and sell this software
+and its documentation for any purpose is hereby granted without fee,
+provided that the above copyright notice appear in all copies and
+that both that copyright notice and this permission notice appear
+in supporting documentation, and that the name of Thomas Roell nor
+SGCS be used in advertising or publicity pertaining to distribution
+of the software without specific, written prior permission.
+Thomas Roell nor SGCS makes no representations about the suitability
+of this software for any purpose. It is provided "as is" without
+express or implied warranty.
+
+THOMAS ROELL AND SGCS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL THOMAS ROELL OR SGCS BE LIABLE FOR ANY
+SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1998 by Alan Hourihane, Wigan, England.
+Copyright 2000-2002 by Alan Hourihane, Flint Mountain, North Wales.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Alan Hourihane not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Alan Hourihane makes no representations
+about the suitability of this software for any purpose. It is provided
+"as is" without express or implied warranty.
+
+ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1995 Kaleb S. KEITHLEY
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL Kaleb S. KEITHLEY BE LIABLE FOR ANY CLAIM, DAMAGES
+OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of Kaleb S. KEITHLEY
+shall not be used in advertising or otherwise to promote the sale, use
+or other dealings in this Software without prior written authorization
+from Kaleb S. KEITHLEY
+
+
+Copyright (c) 1997 Matthieu Herrb
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Matthieu Herrb not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Matthieu Herrb makes no
+representations about the suitability of this software for any purpose.
+ It is provided "as is" without express or implied warranty.
+
+MATTHIEU HERRB DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL MATTHIEU HERRB BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 2004, Egbert Eich
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+EGBERT EICH BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CON-
+NECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of Egbert Eich shall not
+be used in advertising or otherwise to promote the sale, use or other deal-
+ings in this Software without prior written authorization from Egbert Eich.
+
+
+Copyright 1993 by David Wexelblat <dwex@goblin.org>
+Copyright 2005 by Kean Johnston <jkj@sco.com>
+Copyright 1993 by David McCullough <davidm@stallion.oz.au>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of David Wexelblat not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. David Wexelblat makes no representations
+about the suitability of this software for any purpose. It is provided
+"as is" without express or implied warranty.
+
+DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL DAVID WEXELBLAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1992 by Orest Zborowski <obz@Kodak.com>
+Copyright 1993 by David Wexelblat <dwex@goblin.org>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the names of Orest Zborowski and David Wexelblat
+not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission. Orest Zborowski
+and David Wexelblat make no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+OREST ZBOROWSKI AND DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID WEXELBLAT BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1992 by Orest Zborowski <obz@Kodak.com>
+Copyright 1993 by David Dawes <dawes@xfree86.org>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the names of Orest Zborowski and David Dawes
+not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission. Orest Zborowski
+and David Dawes make no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+OREST ZBOROWSKI AND DAVID DAWES DISCLAIMS ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL OREST ZBOROWSKI OR DAVID DAWES BE LIABLE
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1995-1999 by Frederic Lepied, France. <fred@sugix.frmug.fr.net>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Frederic Lepied not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Frederic Lepied makes no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+FREDERIC LEPIED DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL FREDERIC LEPIED BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1992 by Rich Murphey <Rich@Rice.edu>
+Copyright 1993 by David Wexelblat <dwex@goblin.org>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the names of Rich Murphey and David Wexelblat
+not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission. Rich Murphey and
+David Wexelblat make no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT BE LIABLE FOR
+ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1992 by Rich Murphey <Rich@Rice.edu>
+Copyright 1993 by David Dawes <dawes@xfree86.org>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the names of Rich Murphey and David Dawes
+not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission. Rich Murphey and
+David Dawes make no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+RICH MURPHEY AND DAVID DAWES DISCLAIM ALL WARRANTIES WITH REGARD TO
+THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID DAWES BE LIABLE FOR
+ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright © 2003-2004 Anders Carlsson
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Anders Carlsson not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Anders Carlsson makes no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+ANDERS CARLSSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL ANDERS CARLSSON BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright (C) 2003 Anders Carlsson
+Copyright © 2003-2004 Eric Anholt
+Copyright © 2004 Keith Packard
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Eric Anholt not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Eric Anholt makes no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL ERIC ANHOLT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE
+FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright © 2003-2004 Philip Blundell
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Philip Blundell not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Philip Blundell makes no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+PHILIP BLUNDELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL PHILIP BLUNDELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+
+Copyright (c) 1994-2003 by The XFree86 Project, Inc.
+Copyright 1997 by Metro Link, Inc.
+Copyright 2003 by David H. Dawes.
+Copyright 2003 by X-Oz Technologies.
+Copyright (c) 2004, X.Org Foundation
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the copyright holder(s)
+and author(s) shall not be used in advertising or otherwise to promote
+the sale, use or other dealings in this Software without prior written
+authorization from the copyright holder(s) and author(s).
+
+
+Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
+Copyright 1993 by David Wexelblat <dwex@goblin.org>
+Copyright 1999 by David Holland <davidh@iquest.net>
+Copyright © 2000 Compaq Computer Corporation
+Copyright © 2002 Hewlett-Packard Company
+Copyright © 2004, 2005 Red Hat, Inc.
+Copyright © 2004 Nicholas Miell
+Copyright © 2005 Trolltech AS
+Copyright © 2006 Intel Corporation
+Copyright © 2006-2007 Keith Packard
+Copyright © 2008 Red Hat, Inc
+Copyright © 2008 George Sapountzis <gsap7@yahoo.gr>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that copyright
+notice and this permission notice appear in supporting documentation, and
+that the name of the copyright holders not be used in advertising or
+publicity pertaining to distribution of the software without specific,
+written prior permission. The copyright holders make no representations
+about the suitability of this software for any purpose. It is provided "as
+is" without express or implied warranty.
+
+THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
+ 2005 Lars Knoll & Zack Rusin, Trolltech
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of Keith Packard not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Keith Packard makes no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+Copyright 1987, 1998 The Open Group
+Copyright © 1998-1999, 2001 The XFree86 Project, Inc.
+Copyright © 2000 VA Linux Systems, Inc.
+Copyright (c) 2000, 2001 Nokia Home Communications
+Copyright © 2007, 2008 Red Hat, Inc.
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, and/or sell copies of the Software, and to permit persons
+to whom the Software is furnished to do so, provided that the above
+copyright notice(s) and this permission notice appear in all copies of
+the Software and that both the above copyright notice(s) and this
+permission notice appear in supporting documentation.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
+INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
+FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+Except as contained in this notice, the name of a copyright holder
+shall not be used in advertising or otherwise to promote the sale, use
+or other dealings in this Software without prior written authorization
+of the copyright holder.
+
+
+Copyright 1996 by Thomas E. Dickey <dickey@clark.net>
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of the above listed
+copyright holder(s) not be used in advertising or publicity pertaining
+to distribution of the software without specific, written prior
+permission.
+
+THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
+LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
+Copyright (c) 2001 Andreas Monitzer.
+Copyright (c) 2001-2004 Greg Parker.
+Copyright (c) 2001-2004 Torrey T. Lyons
+Copyright (c) 2002-2003 Apple Computer, Inc.
+Copyright (c) 2004-2005 Alexander Gottwald
+Copyright (c) 2002-2009 Apple Inc.
+Copyright (c) 2007 Jeremy Huddleston
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name(s) of the above copyright
+holders shall not be used in advertising or otherwise to promote the sale,
+use or other dealings in this Software without prior written authorization.
+
+
+Copyright (C) 1999,2000 by Eric Sunshine <sunshine@sunshineco.com>
+Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria.
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. The name of the author may not be used to endorse or promote products
+ derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+Copyright (C) 2005 Bogdan D. bogdand@users.sourceforge.net
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the author shall not be used in
+advertising or otherwise to promote the sale, use or other dealings in this
+Software without prior written authorization from the author.
+
+
+Copyright © 2002 David Dawes
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+Except as contained in this notice, the name of the author(s) shall
+not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from
+the author(s).
+
+
+Copyright (C) 1996-1999 SciTech Software, Inc.
+Copyright (C) David Mosberger-Tang
+Copyright (C) 1999 Egbert Eich
+Copyright (C) 2008 Bart Trojanowski, Symbio Technologies, LLC
+
+Permission to use, copy, modify, distribute, and sell this software and
+its documentation for any purpose is hereby granted without fee,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of the authors not be used
+in advertising or publicity pertaining to distribution of the software
+without specific, written prior permission. The authors makes no
+representations about the suitability of this software for any purpose.
+It is provided "as is" without express or implied warranty.
+
+THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 2005-2006 Luc Verhaegen.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+
+Copyright 1995 by Robin Cutshaw <robin@XFree86.Org>
+Copyright 2000 by Egbert Eich
+Copyright 2002 by David Dawes
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the names of the above listed copyright holder(s)
+not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission. The above listed
+copyright holder(s) make(s) no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE
+LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
+DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 1997-2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that copyright
+notice and this permission notice appear in supporting documentation, and
+that the name of Marc Aurele La France not be used in advertising or
+publicity pertaining to distribution of the software without specific,
+written prior permission. Marc Aurele La France makes no representations
+about the suitability of this software for any purpose. It is provided
+"as-is" without express or implied warranty.
+
+MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+OF THIS SOFTWARE.
+
+
+Copyright 1990, 1991 by Thomas Roell, Dinkelscherben, Germany
+Copyright 1992 by David Dawes <dawes@XFree86.org>
+Copyright 1992 by Jim Tsillas <jtsilla@damon.ccs.northeastern.edu>
+Copyright 1992 by Rich Murphey <Rich@Rice.edu>
+Copyright 1992 by Robert Baron <Robert.Baron@ernst.mach.cs.cmu.edu>
+Copyright 1992 by Orest Zborowski <obz@eskimo.com>
+Copyright 1993 by Vrije Universiteit, The Netherlands
+Copyright 1993 by David Wexelblat <dwex@XFree86.org>
+Copyright 1994, 1996 by Holger Veit <Holger.Veit@gmd.de>
+Copyright 1997 by Takis Psarogiannakopoulos <takis@dpmms.cam.ac.uk>
+Copyright 1994-2003 by The XFree86 Project, Inc
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the names of the above listed copyright holders
+not be used in advertising or publicity pertaining to distribution of
+the software without specific, written prior permission. The above listed
+copyright holders make no representations about the suitability of this
+software for any purpose. It is provided "as is" without express or
+implied warranty.
+
+THE ABOVE LISTED COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD
+TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDERS BE
+LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
+DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright 2001-2005 by J. Kean Johnston <jkj@sco.com>
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name J. Kean Johnston not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. J. Kean Johnston makes no
+representations about the suitability of this software for any purpose.
+It is provided "as is" without express or implied warranty.
+
+J. KEAN JOHNSTON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL J. KEAN JOHNSTON BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+JAKUB JELINEK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+Copyright 1997,1998 by UCHIYAMA Yasushi
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of UCHIYAMA Yasushi not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. UCHIYAMA Yasushi makes no representations
+about the suitability of this software for any purpose. It is provided
+"as is" without express or implied warranty.
+
+UCHIYAMA YASUSHI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL UCHIYAMA YASUSHI BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright (C) 2000 Keith Packard
+ 2004 Eric Anholt
+ 2005 Zack Rusin
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of copyright holders not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. Copyright holders make no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+(C) Copyright IBM Corporation 2002-2007
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, and/or sell copies of the Software, and to permit persons to whom
+the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+this permission notice appear in supporting documentation. This permission
+notice shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+Copyright © 2007 OpenedHand Ltd
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of OpenedHand Ltd not be used in
+advertising or publicity pertaining to distribution of the software without
+specific, written prior permission. OpenedHand Ltd makes no
+representations about the suitability of this software for any purpose. It
+is provided "as is" without express or implied warranty.
+
+OpenedHand Ltd DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL OpenedHand Ltd BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+
+Copyright (c) 1987, 1990, 1993
+ The Regents of the University of California. All rights reserved.
+
+This code is derived from software contributed to Berkeley by
+Chris Torek.
+
+This code is derived from software contributed to Berkeley by
+Michael Rendell of Memorial University of Newfoundland.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 4. Neither the name of the University nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
--- /dev/null
+if INT10_X86EMU
+noinst_LTLIBRARIES = libx86emu.la
+endif
+
+libx86emu_la_SOURCES = debug.c \
+ decode.c \
+ fpu.c \
+ ops2.c \
+ ops.c \
+ prim_ops.c \
+ sys.c \
+ x86emu.h
+
+AM_CPPFLAGS =
+
+AM_CFLAGS = $(DIX_CFLAGS) $(XORG_CFLAGS)
+
+EXTRA_DIST = validate.c \
+ x86emu/debug.h \
+ x86emu/decode.h \
+ x86emu/fpu.h \
+ x86emu/fpu_regs.h \
+ x86emu/ops.h \
+ x86emu/prim_asm.h \
+ x86emu/prim_ops.h \
+ x86emu/prim_x86_gcc.h \
+ x86emu/regs.h \
+ x86emu/types.h \
+ x86emu/x86emui.h
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: This file contains the code to handle debugging of the
+* emulator.
+*
+****************************************************************************/
+
+#include "x86emu/x86emui.h"
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#ifndef NO_SYS_HEADERS
+#include <stdlib.h>
+#endif
+
+/*----------------------------- Implementation ----------------------------*/
+
+#ifdef DEBUG
+
+static void print_encoded_bytes(u16 s, u16 o);
+static void print_decoded_instruction(void);
+static int parse_line(char *s, int *ps, int *n);
+
+/* should look something like debug's output. */
+void
+X86EMU_trace_regs(void)
+{
+ if (DEBUG_TRACE()) {
+ x86emu_dump_regs();
+ }
+ if (DEBUG_DECODE() && !DEBUG_DECODE_NOPRINT()) {
+ printk("%04x:%04x ", M.x86.saved_cs, M.x86.saved_ip);
+ print_encoded_bytes(M.x86.saved_cs, M.x86.saved_ip);
+ print_decoded_instruction();
+ }
+}
+
+void
+X86EMU_trace_xregs(void)
+{
+ if (DEBUG_TRACE()) {
+ x86emu_dump_xregs();
+ }
+}
+
+void
+x86emu_just_disassemble(void)
+{
+ /*
+ * This routine called if the flag DEBUG_DISASSEMBLE is set kind
+ * of a hack!
+ */
+ printk("%04x:%04x ", M.x86.saved_cs, M.x86.saved_ip);
+ print_encoded_bytes(M.x86.saved_cs, M.x86.saved_ip);
+ print_decoded_instruction();
+}
+
+static void
+disassemble_forward(u16 seg, u16 off, int n)
+{
+ X86EMU_sysEnv tregs;
+ int i;
+ u8 op1;
+
+ /*
+ * hack, hack, hack. What we do is use the exact machinery set up
+ * for execution, except that now there is an additional state
+ * flag associated with the "execution", and we are using a copy
+ * of the register struct. All the major opcodes, once fully
+ * decoded, have the following two steps: TRACE_REGS(r,m);
+ * SINGLE_STEP(r,m); which disappear if DEBUG is not defined to
+ * the preprocessor. The TRACE_REGS macro expands to:
+ *
+ * if (debug&DEBUG_DISASSEMBLE)
+ * {just_disassemble(); goto EndOfInstruction;}
+ * if (debug&DEBUG_TRACE) trace_regs(r,m);
+ *
+ * ...... and at the last line of the routine.
+ *
+ * EndOfInstruction: end_instr();
+ *
+ * Up to the point where TRACE_REG is expanded, NO modifications
+ * are done to any register EXCEPT the IP register, for fetch and
+ * decoding purposes.
+ *
+ * This was done for an entirely different reason, but makes a
+ * nice way to get the system to help debug codes.
+ */
+ tregs = M;
+ tregs.x86.R_IP = off;
+ tregs.x86.R_CS = seg;
+
+ /* reset the decoding buffers */
+ tregs.x86.enc_str_pos = 0;
+ tregs.x86.enc_pos = 0;
+
+ /* turn on the "disassemble only, no execute" flag */
+ tregs.x86.debug |= DEBUG_DISASSEMBLE_F;
+
+ /* DUMP NEXT n instructions to screen in straight_line fashion */
+ /*
+ * This looks like the regular instruction fetch stream, except
+ * that when this occurs, each fetched opcode, upon seeing the
+ * DEBUG_DISASSEMBLE flag set, exits immediately after decoding
+ * the instruction. XXX --- CHECK THAT MEM IS NOT AFFECTED!!!
+ * Note the use of a copy of the register structure...
+ */
+ for (i = 0; i < n; i++) {
+ op1 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+ (x86emu_optab[op1]) (op1);
+ }
+ /* end major hack mode. */
+}
+
+void
+x86emu_check_ip_access(void)
+{
+ /* NULL as of now */
+}
+
+void
+x86emu_check_sp_access(void)
+{
+}
+
+void
+x86emu_check_mem_access(u32 dummy)
+{
+ /* check bounds, etc */
+}
+
+void
+x86emu_check_data_access(uint dummy1, uint dummy2)
+{
+ /* check bounds, etc */
+}
+
+void
+x86emu_inc_decoded_inst_len(int x)
+{
+ M.x86.enc_pos += x;
+}
+
+void
+x86emu_decode_printf(const char *x, ...)
+{
+ va_list ap;
+ char temp[100];
+
+ va_start(ap, x);
+ vsnprintf(temp, sizeof(temp), x, ap);
+ va_end(ap);
+ sprintf(M.x86.decoded_buf + M.x86.enc_str_pos, "%s", temp);
+ M.x86.enc_str_pos += strlen(temp);
+}
+
+void
+x86emu_end_instr(void)
+{
+ M.x86.enc_str_pos = 0;
+ M.x86.enc_pos = 0;
+}
+
+static void
+print_encoded_bytes(u16 s, u16 o)
+{
+ int i;
+ char buf1[64];
+
+ for (i = 0; i < M.x86.enc_pos; i++) {
+ sprintf(buf1 + 2 * i, "%02x", fetch_data_byte_abs(s, o + i));
+ }
+ printk("%-20s", buf1);
+}
+
+static void
+print_decoded_instruction(void)
+{
+ printk("%s", M.x86.decoded_buf);
+}
+
+void
+x86emu_print_int_vect(u16 iv)
+{
+ u16 seg, off;
+
+ if (iv > 256)
+ return;
+ seg = fetch_data_word_abs(0, iv * 4);
+ off = fetch_data_word_abs(0, iv * 4 + 2);
+ printk("%04x:%04x ", seg, off);
+}
+
+void
+X86EMU_dump_memory(u16 seg, u16 off, u32 amt)
+{
+ u32 start = off & 0xfffffff0;
+ u32 end = (off + 16) & 0xfffffff0;
+ u32 i;
+
+ while (end <= off + amt) {
+ printk("%04x:%04x ", seg, start);
+ for (i = start; i < off; i++)
+ printk(" ");
+ for (; i < end; i++)
+ printk("%02x ", fetch_data_byte_abs(seg, i));
+ printk("\n");
+ start = end;
+ end = start + 16;
+ }
+}
+
+void
+x86emu_single_step(void)
+{
+ char s[1024];
+ int ps[10];
+ int ntok;
+ int cmd;
+ int done;
+ int segment;
+ int offset;
+ static int breakpoint;
+ static int noDecode = 1;
+
+ if (DEBUG_BREAK()) {
+ if (M.x86.saved_ip != breakpoint) {
+ return;
+ }
+ else {
+ M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F;
+ M.x86.debug |= DEBUG_TRACE_F;
+ M.x86.debug &= ~DEBUG_BREAK_F;
+ print_decoded_instruction();
+ X86EMU_trace_regs();
+ }
+ }
+ done = 0;
+ offset = M.x86.saved_ip;
+ while (!done) {
+ printk("-");
+ (void)fgets(s, 1023, stdin);
+ cmd = parse_line(s, ps, &ntok);
+ switch (cmd) {
+ case 'u':
+ disassemble_forward(M.x86.saved_cs, (u16) offset, 10);
+ break;
+ case 'd':
+ if (ntok == 2) {
+ segment = M.x86.saved_cs;
+ offset = ps[1];
+ X86EMU_dump_memory(segment, (u16) offset, 16);
+ offset += 16;
+ }
+ else if (ntok == 3) {
+ segment = ps[1];
+ offset = ps[2];
+ X86EMU_dump_memory(segment, (u16) offset, 16);
+ offset += 16;
+ }
+ else {
+ segment = M.x86.saved_cs;
+ X86EMU_dump_memory(segment, (u16) offset, 16);
+ offset += 16;
+ }
+ break;
+ case 'c':
+ M.x86.debug ^= DEBUG_TRACECALL_F;
+ break;
+ case 's':
+ M.x86.debug ^= DEBUG_SVC_F | DEBUG_SYS_F | DEBUG_SYSINT_F;
+ break;
+ case 'r':
+ X86EMU_trace_regs();
+ break;
+ case 'x':
+ X86EMU_trace_xregs();
+ break;
+ case 'g':
+ if (ntok == 2) {
+ breakpoint = ps[1];
+ if (noDecode) {
+ M.x86.debug |= DEBUG_DECODE_NOPRINT_F;
+ }
+ else {
+ M.x86.debug &= ~DEBUG_DECODE_NOPRINT_F;
+ }
+ M.x86.debug &= ~DEBUG_TRACE_F;
+ M.x86.debug |= DEBUG_BREAK_F;
+ done = 1;
+ }
+ break;
+ case 'q':
+ M.x86.debug |= DEBUG_EXIT;
+ return;
+ case 'P':
+ noDecode = (noDecode) ? 0 : 1;
+ printk("Toggled decoding to %s\n", (noDecode) ? "FALSE" : "TRUE");
+ break;
+ case 't':
+ case 0:
+ done = 1;
+ break;
+ }
+ }
+}
+
+int
+X86EMU_trace_on(void)
+{
+ return M.x86.debug |= DEBUG_STEP_F | DEBUG_DECODE_F | DEBUG_TRACE_F;
+}
+
+int
+X86EMU_trace_off(void)
+{
+ return M.x86.debug &= ~(DEBUG_STEP_F | DEBUG_DECODE_F | DEBUG_TRACE_F);
+}
+
+static int
+parse_line(char *s, int *ps, int *n)
+{
+ int cmd;
+
+ *n = 0;
+ while (*s == ' ' || *s == '\t')
+ s++;
+ ps[*n] = *s;
+ switch (*s) {
+ case '\n':
+ *n += 1;
+ return 0;
+ default:
+ cmd = *s;
+ *n += 1;
+ }
+
+ while (1) {
+ while (*s != ' ' && *s != '\t' && *s != '\n')
+ s++;
+
+ if (*s == '\n')
+ return cmd;
+
+ while (*s == ' ' || *s == '\t')
+ s++;
+
+ sscanf(s, "%x", &ps[*n]);
+ *n += 1;
+ }
+}
+
+#endif /* DEBUG */
+
+void
+x86emu_dump_regs(void)
+{
+ printk("\tAX=%04x ", M.x86.R_AX);
+ printk("BX=%04x ", M.x86.R_BX);
+ printk("CX=%04x ", M.x86.R_CX);
+ printk("DX=%04x ", M.x86.R_DX);
+ printk("SP=%04x ", M.x86.R_SP);
+ printk("BP=%04x ", M.x86.R_BP);
+ printk("SI=%04x ", M.x86.R_SI);
+ printk("DI=%04x\n", M.x86.R_DI);
+ printk("\tDS=%04x ", M.x86.R_DS);
+ printk("ES=%04x ", M.x86.R_ES);
+ printk("SS=%04x ", M.x86.R_SS);
+ printk("CS=%04x ", M.x86.R_CS);
+ printk("IP=%04x ", M.x86.R_IP);
+ if (ACCESS_FLAG(F_OF))
+ printk("OV "); /* CHECKED... */
+ else
+ printk("NV ");
+ if (ACCESS_FLAG(F_DF))
+ printk("DN ");
+ else
+ printk("UP ");
+ if (ACCESS_FLAG(F_IF))
+ printk("EI ");
+ else
+ printk("DI ");
+ if (ACCESS_FLAG(F_SF))
+ printk("NG ");
+ else
+ printk("PL ");
+ if (ACCESS_FLAG(F_ZF))
+ printk("ZR ");
+ else
+ printk("NZ ");
+ if (ACCESS_FLAG(F_AF))
+ printk("AC ");
+ else
+ printk("NA ");
+ if (ACCESS_FLAG(F_PF))
+ printk("PE ");
+ else
+ printk("PO ");
+ if (ACCESS_FLAG(F_CF))
+ printk("CY ");
+ else
+ printk("NC ");
+ printk("\n");
+}
+
+void
+x86emu_dump_xregs(void)
+{
+ printk("\tEAX=%08x ", M.x86.R_EAX);
+ printk("EBX=%08x ", M.x86.R_EBX);
+ printk("ECX=%08x ", M.x86.R_ECX);
+ printk("EDX=%08x \n", M.x86.R_EDX);
+ printk("\tESP=%08x ", M.x86.R_ESP);
+ printk("EBP=%08x ", M.x86.R_EBP);
+ printk("ESI=%08x ", M.x86.R_ESI);
+ printk("EDI=%08x\n", M.x86.R_EDI);
+ printk("\tDS=%04x ", M.x86.R_DS);
+ printk("ES=%04x ", M.x86.R_ES);
+ printk("SS=%04x ", M.x86.R_SS);
+ printk("CS=%04x ", M.x86.R_CS);
+ printk("EIP=%08x\n\t", M.x86.R_EIP);
+ if (ACCESS_FLAG(F_OF))
+ printk("OV "); /* CHECKED... */
+ else
+ printk("NV ");
+ if (ACCESS_FLAG(F_DF))
+ printk("DN ");
+ else
+ printk("UP ");
+ if (ACCESS_FLAG(F_IF))
+ printk("EI ");
+ else
+ printk("DI ");
+ if (ACCESS_FLAG(F_SF))
+ printk("NG ");
+ else
+ printk("PL ");
+ if (ACCESS_FLAG(F_ZF))
+ printk("ZR ");
+ else
+ printk("NZ ");
+ if (ACCESS_FLAG(F_AF))
+ printk("AC ");
+ else
+ printk("NA ");
+ if (ACCESS_FLAG(F_PF))
+ printk("PE ");
+ else
+ printk("PO ");
+ if (ACCESS_FLAG(F_CF))
+ printk("CY ");
+ else
+ printk("NC ");
+ printk("\n");
+}
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: This file includes subroutines which are related to
+* instruction decoding and accessess of immediate data via IP. etc.
+*
+****************************************************************************/
+
+#include <stdlib.h>
+
+#if defined(__sun) && defined(CS) /* avoid conflicts with Solaris sys/regset.h */
+# undef CS
+# undef DS
+# undef SS
+# undef ES
+# undef FS
+# undef GS
+#endif
+
+#include "x86emu/x86emui.h"
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+REMARKS:
+Handles any pending asychronous interrupts.
+****************************************************************************/
+static void
+x86emu_intr_handle(void)
+{
+ u8 intno;
+
+ if (M.x86.intr & INTR_SYNCH) {
+ intno = M.x86.intno;
+ if (_X86EMU_intrTab[intno]) {
+ (*_X86EMU_intrTab[intno]) (intno);
+ }
+ else {
+ push_word((u16) M.x86.R_FLG);
+ CLEAR_FLAG(F_IF);
+ CLEAR_FLAG(F_TF);
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = mem_access_word(intno * 4 + 2);
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = mem_access_word(intno * 4);
+ M.x86.intr = 0;
+ }
+ }
+}
+
+/****************************************************************************
+PARAMETERS:
+intrnum - Interrupt number to raise
+
+REMARKS:
+Raise the specified interrupt to be handled before the execution of the
+next instruction.
+****************************************************************************/
+void
+x86emu_intr_raise(u8 intrnum)
+{
+ M.x86.intno = intrnum;
+ M.x86.intr |= INTR_SYNCH;
+}
+
+/****************************************************************************
+REMARKS:
+Main execution loop for the emulator. We return from here when the system
+halts, which is normally caused by a stack fault when we return from the
+original real mode call.
+****************************************************************************/
+void
+X86EMU_exec(void)
+{
+ u8 op1;
+
+ M.x86.intr = 0;
+ DB(x86emu_end_instr();
+ )
+
+ for (;;) {
+ DB(if (CHECK_IP_FETCH())
+ x86emu_check_ip_access();)
+ /* If debugging, save the IP and CS values. */
+ SAVE_IP_CS(M.x86.R_CS, M.x86.R_IP);
+ INC_DECODED_INST_LEN(1);
+ if (M.x86.intr) {
+ if (M.x86.intr & INTR_HALTED) {
+ DB(if (M.x86.R_SP != 0) {
+ printk("halted\n"); X86EMU_trace_regs();}
+ else {
+ if (M.x86.debug)
+ printk("Service completed successfully\n");}
+ )
+ return;
+ }
+ if (((M.x86.intr & INTR_SYNCH) &&
+ (M.x86.intno == 0 || M.x86.intno == 2)) ||
+ !ACCESS_FLAG(F_IF)) {
+ x86emu_intr_handle();
+ }
+ }
+ op1 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+ (*x86emu_optab[op1]) (op1);
+ if (M.x86.debug & DEBUG_EXIT) {
+ M.x86.debug &= ~DEBUG_EXIT;
+ return;
+ }
+ }
+}
+
+/****************************************************************************
+REMARKS:
+Halts the system by setting the halted system flag.
+****************************************************************************/
+void
+X86EMU_halt_sys(void)
+{
+ M.x86.intr |= INTR_HALTED;
+}
+
+/****************************************************************************
+PARAMETERS:
+mod - Mod value from decoded byte
+regh - Reg h value from decoded byte
+regl - Reg l value from decoded byte
+
+REMARKS:
+Raise the specified interrupt to be handled before the execution of the
+next instruction.
+
+NOTE: Do not inline this function, as (*sys_rdb) is already inline!
+****************************************************************************/
+void
+fetch_decode_modrm(int *mod, int *regh, int *regl)
+{
+ int fetched;
+
+ DB(if (CHECK_IP_FETCH())
+ x86emu_check_ip_access();)
+ fetched = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+ INC_DECODED_INST_LEN(1);
+ *mod = (fetched >> 6) & 0x03;
+ *regh = (fetched >> 3) & 0x07;
+ *regl = (fetched >> 0) & 0x07;
+}
+
+/****************************************************************************
+RETURNS:
+Immediate byte value read from instruction queue
+
+REMARKS:
+This function returns the immediate byte from the instruction queue, and
+moves the instruction pointer to the next value.
+
+NOTE: Do not inline this function, as (*sys_rdb) is already inline!
+****************************************************************************/
+u8
+fetch_byte_imm(void)
+{
+ u8 fetched;
+
+ DB(if (CHECK_IP_FETCH())
+ x86emu_check_ip_access();)
+ fetched = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+ INC_DECODED_INST_LEN(1);
+ return fetched;
+}
+
+/****************************************************************************
+RETURNS:
+Immediate word value read from instruction queue
+
+REMARKS:
+This function returns the immediate byte from the instruction queue, and
+moves the instruction pointer to the next value.
+
+NOTE: Do not inline this function, as (*sys_rdw) is already inline!
+****************************************************************************/
+u16
+fetch_word_imm(void)
+{
+ u16 fetched;
+
+ DB(if (CHECK_IP_FETCH())
+ x86emu_check_ip_access();)
+ fetched = (*sys_rdw) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP));
+ M.x86.R_IP += 2;
+ INC_DECODED_INST_LEN(2);
+ return fetched;
+}
+
+/****************************************************************************
+RETURNS:
+Immediate lone value read from instruction queue
+
+REMARKS:
+This function returns the immediate byte from the instruction queue, and
+moves the instruction pointer to the next value.
+
+NOTE: Do not inline this function, as (*sys_rdw) is already inline!
+****************************************************************************/
+u32
+fetch_long_imm(void)
+{
+ u32 fetched;
+
+ DB(if (CHECK_IP_FETCH())
+ x86emu_check_ip_access();)
+ fetched = (*sys_rdl) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP));
+ M.x86.R_IP += 4;
+ INC_DECODED_INST_LEN(4);
+ return fetched;
+}
+
+/****************************************************************************
+RETURNS:
+Value of the default data segment
+
+REMARKS:
+Inline function that returns the default data segment for the current
+instruction.
+
+On the x86 processor, the default segment is not always DS if there is
+no segment override. Address modes such as -3[BP] or 10[BP+SI] all refer to
+addresses relative to SS (ie: on the stack). So, at the minimum, all
+decodings of addressing modes would have to set/clear a bit describing
+whether the access is relative to DS or SS. That is the function of the
+cpu-state-varible M.x86.mode. There are several potential states:
+
+ repe prefix seen (handled elsewhere)
+ repne prefix seen (ditto)
+
+ cs segment override
+ ds segment override
+ es segment override
+ fs segment override
+ gs segment override
+ ss segment override
+
+ ds/ss select (in absense of override)
+
+Each of the above 7 items are handled with a bit in the mode field.
+****************************************************************************/
+_INLINE u32
+get_data_segment(void)
+{
+#define GET_SEGMENT(segment)
+ switch (M.x86.mode & SYSMODE_SEGMASK) {
+ case 0: /* default case: use ds register */
+ case SYSMODE_SEGOVR_DS:
+ case SYSMODE_SEGOVR_DS | SYSMODE_SEG_DS_SS:
+ return M.x86.R_DS;
+ case SYSMODE_SEG_DS_SS: /* non-overridden, use ss register */
+ return M.x86.R_SS;
+ case SYSMODE_SEGOVR_CS:
+ case SYSMODE_SEGOVR_CS | SYSMODE_SEG_DS_SS:
+ return M.x86.R_CS;
+ case SYSMODE_SEGOVR_ES:
+ case SYSMODE_SEGOVR_ES | SYSMODE_SEG_DS_SS:
+ return M.x86.R_ES;
+ case SYSMODE_SEGOVR_FS:
+ case SYSMODE_SEGOVR_FS | SYSMODE_SEG_DS_SS:
+ return M.x86.R_FS;
+ case SYSMODE_SEGOVR_GS:
+ case SYSMODE_SEGOVR_GS | SYSMODE_SEG_DS_SS:
+ return M.x86.R_GS;
+ case SYSMODE_SEGOVR_SS:
+ case SYSMODE_SEGOVR_SS | SYSMODE_SEG_DS_SS:
+ return M.x86.R_SS;
+ default:
+#ifdef DEBUG
+ printk("error: should not happen: multiple overrides.\n");
+#endif
+ HALT_SYS();
+ return 0;
+ }
+}
+
+/****************************************************************************
+PARAMETERS:
+offset - Offset to load data from
+
+RETURNS:
+Byte value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u8
+fetch_data_byte(uint offset)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+ return (*sys_rdb) ((get_data_segment() << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset - Offset to load data from
+
+RETURNS:
+Word value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u16
+fetch_data_word(uint offset)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+ return (*sys_rdw) ((get_data_segment() << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset - Offset to load data from
+
+RETURNS:
+Long value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u32
+fetch_data_long(uint offset)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+ return (*sys_rdl) ((get_data_segment() << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment - Segment to load data from
+offset - Offset to load data from
+
+RETURNS:
+Byte value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u8
+fetch_data_byte_abs(uint segment, uint offset)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access(segment, offset);
+#endif
+ return (*sys_rdb) (((u32) segment << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment - Segment to load data from
+offset - Offset to load data from
+
+RETURNS:
+Word value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u16
+fetch_data_word_abs(uint segment, uint offset)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access(segment, offset);
+#endif
+ return (*sys_rdw) (((u32) segment << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment - Segment to load data from
+offset - Offset to load data from
+
+RETURNS:
+Long value read from the absolute memory location.
+
+NOTE: Do not inline this function as (*sys_rdX) is already inline!
+****************************************************************************/
+u32
+fetch_data_long_abs(uint segment, uint offset)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access(segment, offset);
+#endif
+ return (*sys_rdl) (((u32) segment << 4) + offset);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset - Offset to store data at
+val - Value to store
+
+REMARKS:
+Writes a word value to an segmented memory location. The segment used is
+the current 'default' segment, which may have been overridden.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void
+store_data_byte(uint offset, u8 val)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+ (*sys_wrb) ((get_data_segment() << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset - Offset to store data at
+val - Value to store
+
+REMARKS:
+Writes a word value to an segmented memory location. The segment used is
+the current 'default' segment, which may have been overridden.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void
+store_data_word(uint offset, u16 val)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+ (*sys_wrw) ((get_data_segment() << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+offset - Offset to store data at
+val - Value to store
+
+REMARKS:
+Writes a long value to an segmented memory location. The segment used is
+the current 'default' segment, which may have been overridden.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void
+store_data_long(uint offset, u32 val)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access((u16) get_data_segment(), offset);
+#endif
+ (*sys_wrl) ((get_data_segment() << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment - Segment to store data at
+offset - Offset to store data at
+val - Value to store
+
+REMARKS:
+Writes a byte value to an absolute memory location.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void
+store_data_byte_abs(uint segment, uint offset, u8 val)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access(segment, offset);
+#endif
+ (*sys_wrb) (((u32) segment << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment - Segment to store data at
+offset - Offset to store data at
+val - Value to store
+
+REMARKS:
+Writes a word value to an absolute memory location.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void
+store_data_word_abs(uint segment, uint offset, u16 val)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access(segment, offset);
+#endif
+ (*sys_wrw) (((u32) segment << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+segment - Segment to store data at
+offset - Offset to store data at
+val - Value to store
+
+REMARKS:
+Writes a long value to an absolute memory location.
+
+NOTE: Do not inline this function as (*sys_wrX) is already inline!
+****************************************************************************/
+void
+store_data_long_abs(uint segment, uint offset, u32 val)
+{
+#ifdef DEBUG
+ if (CHECK_DATA_ACCESS())
+ x86emu_check_data_access(segment, offset);
+#endif
+ (*sys_wrl) (((u32) segment << 4) + offset, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+reg - Register to decode
+
+RETURNS:
+Pointer to the appropriate register
+
+REMARKS:
+Return a pointer to the register given by the R/RM field of the
+modrm byte, for byte operands. Also enables the decoding of instructions.
+****************************************************************************/
+u8 *
+decode_rm_byte_register(int reg)
+{
+ switch (reg) {
+ case 0:
+ DECODE_PRINTF("AL");
+ return &M.x86.R_AL;
+ case 1:
+ DECODE_PRINTF("CL");
+ return &M.x86.R_CL;
+ case 2:
+ DECODE_PRINTF("DL");
+ return &M.x86.R_DL;
+ case 3:
+ DECODE_PRINTF("BL");
+ return &M.x86.R_BL;
+ case 4:
+ DECODE_PRINTF("AH");
+ return &M.x86.R_AH;
+ case 5:
+ DECODE_PRINTF("CH");
+ return &M.x86.R_CH;
+ case 6:
+ DECODE_PRINTF("DH");
+ return &M.x86.R_DH;
+ case 7:
+ DECODE_PRINTF("BH");
+ return &M.x86.R_BH;
+ }
+ HALT_SYS();
+ return NULL; /* NOT REACHED OR REACHED ON ERROR */
+}
+
+/****************************************************************************
+PARAMETERS:
+reg - Register to decode
+
+RETURNS:
+Pointer to the appropriate register
+
+REMARKS:
+Return a pointer to the register given by the R/RM field of the
+modrm byte, for word operands. Also enables the decoding of instructions.
+****************************************************************************/
+u16 *
+decode_rm_word_register(int reg)
+{
+ switch (reg) {
+ case 0:
+ DECODE_PRINTF("AX");
+ return &M.x86.R_AX;
+ case 1:
+ DECODE_PRINTF("CX");
+ return &M.x86.R_CX;
+ case 2:
+ DECODE_PRINTF("DX");
+ return &M.x86.R_DX;
+ case 3:
+ DECODE_PRINTF("BX");
+ return &M.x86.R_BX;
+ case 4:
+ DECODE_PRINTF("SP");
+ return &M.x86.R_SP;
+ case 5:
+ DECODE_PRINTF("BP");
+ return &M.x86.R_BP;
+ case 6:
+ DECODE_PRINTF("SI");
+ return &M.x86.R_SI;
+ case 7:
+ DECODE_PRINTF("DI");
+ return &M.x86.R_DI;
+ }
+ HALT_SYS();
+ return NULL; /* NOTREACHED OR REACHED ON ERROR */
+}
+
+/****************************************************************************
+PARAMETERS:
+reg - Register to decode
+
+RETURNS:
+Pointer to the appropriate register
+
+REMARKS:
+Return a pointer to the register given by the R/RM field of the
+modrm byte, for dword operands. Also enables the decoding of instructions.
+****************************************************************************/
+u32 *
+decode_rm_long_register(int reg)
+{
+ switch (reg) {
+ case 0:
+ DECODE_PRINTF("EAX");
+ return &M.x86.R_EAX;
+ case 1:
+ DECODE_PRINTF("ECX");
+ return &M.x86.R_ECX;
+ case 2:
+ DECODE_PRINTF("EDX");
+ return &M.x86.R_EDX;
+ case 3:
+ DECODE_PRINTF("EBX");
+ return &M.x86.R_EBX;
+ case 4:
+ DECODE_PRINTF("ESP");
+ return &M.x86.R_ESP;
+ case 5:
+ DECODE_PRINTF("EBP");
+ return &M.x86.R_EBP;
+ case 6:
+ DECODE_PRINTF("ESI");
+ return &M.x86.R_ESI;
+ case 7:
+ DECODE_PRINTF("EDI");
+ return &M.x86.R_EDI;
+ }
+ HALT_SYS();
+ return NULL; /* NOTREACHED OR REACHED ON ERROR */
+}
+
+/****************************************************************************
+PARAMETERS:
+reg - Register to decode
+
+RETURNS:
+Pointer to the appropriate register
+
+REMARKS:
+Return a pointer to the register given by the R/RM field of the
+modrm byte, for word operands, modified from above for the weirdo
+special case of segreg operands. Also enables the decoding of instructions.
+****************************************************************************/
+u16 *
+decode_rm_seg_register(int reg)
+{
+ switch (reg) {
+ case 0:
+ DECODE_PRINTF("ES");
+ return &M.x86.R_ES;
+ case 1:
+ DECODE_PRINTF("CS");
+ return &M.x86.R_CS;
+ case 2:
+ DECODE_PRINTF("SS");
+ return &M.x86.R_SS;
+ case 3:
+ DECODE_PRINTF("DS");
+ return &M.x86.R_DS;
+ case 4:
+ DECODE_PRINTF("FS");
+ return &M.x86.R_FS;
+ case 5:
+ DECODE_PRINTF("GS");
+ return &M.x86.R_GS;
+ case 6:
+ case 7:
+ DECODE_PRINTF("ILLEGAL SEGREG");
+ break;
+ }
+ HALT_SYS();
+ return NULL; /* NOT REACHED OR REACHED ON ERROR */
+}
+
+/*
+ *
+ * return offset from the SIB Byte
+ */
+u32
+decode_sib_address(int sib, int mod)
+{
+ u32 base = 0, i = 0, scale = 1;
+
+ switch (sib & 0x07) {
+ case 0:
+ DECODE_PRINTF("[EAX]");
+ base = M.x86.R_EAX;
+ break;
+ case 1:
+ DECODE_PRINTF("[ECX]");
+ base = M.x86.R_ECX;
+ break;
+ case 2:
+ DECODE_PRINTF("[EDX]");
+ base = M.x86.R_EDX;
+ break;
+ case 3:
+ DECODE_PRINTF("[EBX]");
+ base = M.x86.R_EBX;
+ break;
+ case 4:
+ DECODE_PRINTF("[ESP]");
+ base = M.x86.R_ESP;
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ break;
+ case 5:
+ if (mod == 0) {
+ base = fetch_long_imm();
+ DECODE_PRINTF2("%08x", base);
+ }
+ else {
+ DECODE_PRINTF("[EBP]");
+ base = M.x86.R_ESP;
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ }
+ break;
+ case 6:
+ DECODE_PRINTF("[ESI]");
+ base = M.x86.R_ESI;
+ break;
+ case 7:
+ DECODE_PRINTF("[EDI]");
+ base = M.x86.R_EDI;
+ break;
+ }
+ switch ((sib >> 3) & 0x07) {
+ case 0:
+ DECODE_PRINTF("[EAX");
+ i = M.x86.R_EAX;
+ break;
+ case 1:
+ DECODE_PRINTF("[ECX");
+ i = M.x86.R_ECX;
+ break;
+ case 2:
+ DECODE_PRINTF("[EDX");
+ i = M.x86.R_EDX;
+ break;
+ case 3:
+ DECODE_PRINTF("[EBX");
+ i = M.x86.R_EBX;
+ break;
+ case 4:
+ i = 0;
+ break;
+ case 5:
+ DECODE_PRINTF("[EBP");
+ i = M.x86.R_EBP;
+ break;
+ case 6:
+ DECODE_PRINTF("[ESI");
+ i = M.x86.R_ESI;
+ break;
+ case 7:
+ DECODE_PRINTF("[EDI");
+ i = M.x86.R_EDI;
+ break;
+ }
+ scale = 1 << ((sib >> 6) & 0x03);
+ if (((sib >> 3) & 0x07) != 4) {
+ if (scale == 1) {
+ DECODE_PRINTF("]");
+ }
+ else {
+ DECODE_PRINTF2("*%d]", scale);
+ }
+ }
+ return base + (i * scale);
+}
+
+/****************************************************************************
+PARAMETERS:
+rm - RM value to decode
+
+RETURNS:
+Offset in memory for the address decoding
+
+REMARKS:
+Return the offset given by mod=00 addressing. Also enables the
+decoding of instructions.
+
+NOTE: The code which specifies the corresponding segment (ds vs ss)
+ below in the case of [BP+..]. The assumption here is that at the
+ point that this subroutine is called, the bit corresponding to
+ SYSMODE_SEG_DS_SS will be zero. After every instruction
+ except the segment override instructions, this bit (as well
+ as any bits indicating segment overrides) will be clear. So
+ if a SS access is needed, set this bit. Otherwise, DS access
+ occurs (unless any of the segment override bits are set).
+****************************************************************************/
+u32
+decode_rm00_address(int rm)
+{
+ u32 offset;
+ int sib;
+
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ /* 32-bit addressing */
+ switch (rm) {
+ case 0:
+ DECODE_PRINTF("[EAX]");
+ return M.x86.R_EAX;
+ case 1:
+ DECODE_PRINTF("[ECX]");
+ return M.x86.R_ECX;
+ case 2:
+ DECODE_PRINTF("[EDX]");
+ return M.x86.R_EDX;
+ case 3:
+ DECODE_PRINTF("[EBX]");
+ return M.x86.R_EBX;
+ case 4:
+ sib = fetch_byte_imm();
+ return decode_sib_address(sib, 0);
+ case 5:
+ offset = fetch_long_imm();
+ DECODE_PRINTF2("[%08x]", offset);
+ return offset;
+ case 6:
+ DECODE_PRINTF("[ESI]");
+ return M.x86.R_ESI;
+ case 7:
+ DECODE_PRINTF("[EDI]");
+ return M.x86.R_EDI;
+ }
+ HALT_SYS();
+ }
+ else {
+ /* 16-bit addressing */
+ switch (rm) {
+ case 0:
+ DECODE_PRINTF("[BX+SI]");
+ return (M.x86.R_BX + M.x86.R_SI) & 0xffff;
+ case 1:
+ DECODE_PRINTF("[BX+DI]");
+ return (M.x86.R_BX + M.x86.R_DI) & 0xffff;
+ case 2:
+ DECODE_PRINTF("[BP+SI]");
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return (M.x86.R_BP + M.x86.R_SI) & 0xffff;
+ case 3:
+ DECODE_PRINTF("[BP+DI]");
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return (M.x86.R_BP + M.x86.R_DI) & 0xffff;
+ case 4:
+ DECODE_PRINTF("[SI]");
+ return M.x86.R_SI;
+ case 5:
+ DECODE_PRINTF("[DI]");
+ return M.x86.R_DI;
+ case 6:
+ offset = fetch_word_imm();
+ DECODE_PRINTF2("[%04x]", offset);
+ return offset;
+ case 7:
+ DECODE_PRINTF("[BX]");
+ return M.x86.R_BX;
+ }
+ HALT_SYS();
+ }
+ return 0;
+}
+
+/****************************************************************************
+PARAMETERS:
+rm - RM value to decode
+
+RETURNS:
+Offset in memory for the address decoding
+
+REMARKS:
+Return the offset given by mod=01 addressing. Also enables the
+decoding of instructions.
+****************************************************************************/
+u32
+decode_rm01_address(int rm)
+{
+ int displacement = 0;
+ int sib;
+
+ /* Fetch disp8 if no SIB byte */
+ if (!((M.x86.mode & SYSMODE_PREFIX_ADDR) && (rm == 4)))
+ displacement = (s8) fetch_byte_imm();
+
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ /* 32-bit addressing */
+ switch (rm) {
+ case 0:
+ DECODE_PRINTF2("%d[EAX]", displacement);
+ return M.x86.R_EAX + displacement;
+ case 1:
+ DECODE_PRINTF2("%d[ECX]", displacement);
+ return M.x86.R_ECX + displacement;
+ case 2:
+ DECODE_PRINTF2("%d[EDX]", displacement);
+ return M.x86.R_EDX + displacement;
+ case 3:
+ DECODE_PRINTF2("%d[EBX]", displacement);
+ return M.x86.R_EBX + displacement;
+ case 4:
+ sib = fetch_byte_imm();
+ displacement = (s8) fetch_byte_imm();
+ DECODE_PRINTF2("%d", displacement);
+ return decode_sib_address(sib, 1) + displacement;
+ case 5:
+ DECODE_PRINTF2("%d[EBP]", displacement);
+ return M.x86.R_EBP + displacement;
+ case 6:
+ DECODE_PRINTF2("%d[ESI]", displacement);
+ return M.x86.R_ESI + displacement;
+ case 7:
+ DECODE_PRINTF2("%d[EDI]", displacement);
+ return M.x86.R_EDI + displacement;
+ }
+ HALT_SYS();
+ }
+ else {
+ /* 16-bit addressing */
+ switch (rm) {
+ case 0:
+ DECODE_PRINTF2("%d[BX+SI]", displacement);
+ return (M.x86.R_BX + M.x86.R_SI + displacement) & 0xffff;
+ case 1:
+ DECODE_PRINTF2("%d[BX+DI]", displacement);
+ return (M.x86.R_BX + M.x86.R_DI + displacement) & 0xffff;
+ case 2:
+ DECODE_PRINTF2("%d[BP+SI]", displacement);
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return (M.x86.R_BP + M.x86.R_SI + displacement) & 0xffff;
+ case 3:
+ DECODE_PRINTF2("%d[BP+DI]", displacement);
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return (M.x86.R_BP + M.x86.R_DI + displacement) & 0xffff;
+ case 4:
+ DECODE_PRINTF2("%d[SI]", displacement);
+ return (M.x86.R_SI + displacement) & 0xffff;
+ case 5:
+ DECODE_PRINTF2("%d[DI]", displacement);
+ return (M.x86.R_DI + displacement) & 0xffff;
+ case 6:
+ DECODE_PRINTF2("%d[BP]", displacement);
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return (M.x86.R_BP + displacement) & 0xffff;
+ case 7:
+ DECODE_PRINTF2("%d[BX]", displacement);
+ return (M.x86.R_BX + displacement) & 0xffff;
+ }
+ HALT_SYS();
+ }
+ return 0; /* SHOULD NOT HAPPEN */
+}
+
+/****************************************************************************
+PARAMETERS:
+rm - RM value to decode
+
+RETURNS:
+Offset in memory for the address decoding
+
+REMARKS:
+Return the offset given by mod=10 addressing. Also enables the
+decoding of instructions.
+****************************************************************************/
+u32
+decode_rm10_address(int rm)
+{
+ u32 displacement = 0;
+ int sib;
+
+ /* Fetch disp16 if 16-bit addr mode */
+ if (!(M.x86.mode & SYSMODE_PREFIX_ADDR))
+ displacement = (u16) fetch_word_imm();
+ else {
+ /* Fetch disp32 if no SIB byte */
+ if (rm != 4)
+ displacement = (u32) fetch_long_imm();
+ }
+
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ /* 32-bit addressing */
+ switch (rm) {
+ case 0:
+ DECODE_PRINTF2("%08x[EAX]", displacement);
+ return M.x86.R_EAX + displacement;
+ case 1:
+ DECODE_PRINTF2("%08x[ECX]", displacement);
+ return M.x86.R_ECX + displacement;
+ case 2:
+ DECODE_PRINTF2("%08x[EDX]", displacement);
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return M.x86.R_EDX + displacement;
+ case 3:
+ DECODE_PRINTF2("%08x[EBX]", displacement);
+ return M.x86.R_EBX + displacement;
+ case 4:
+ sib = fetch_byte_imm();
+ displacement = (u32) fetch_long_imm();
+ DECODE_PRINTF2("%08x", displacement);
+ return decode_sib_address(sib, 2) + displacement;
+ break;
+ case 5:
+ DECODE_PRINTF2("%08x[EBP]", displacement);
+ return M.x86.R_EBP + displacement;
+ case 6:
+ DECODE_PRINTF2("%08x[ESI]", displacement);
+ return M.x86.R_ESI + displacement;
+ case 7:
+ DECODE_PRINTF2("%08x[EDI]", displacement);
+ return M.x86.R_EDI + displacement;
+ }
+ HALT_SYS();
+ }
+ else {
+ /* 16-bit addressing */
+ switch (rm) {
+ case 0:
+ DECODE_PRINTF2("%04x[BX+SI]", displacement);
+ return (M.x86.R_BX + M.x86.R_SI + displacement) & 0xffff;
+ case 1:
+ DECODE_PRINTF2("%04x[BX+DI]", displacement);
+ return (M.x86.R_BX + M.x86.R_DI + displacement) & 0xffff;
+ case 2:
+ DECODE_PRINTF2("%04x[BP+SI]", displacement);
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return (M.x86.R_BP + M.x86.R_SI + displacement) & 0xffff;
+ case 3:
+ DECODE_PRINTF2("%04x[BP+DI]", displacement);
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return (M.x86.R_BP + M.x86.R_DI + displacement) & 0xffff;
+ case 4:
+ DECODE_PRINTF2("%04x[SI]", displacement);
+ return (M.x86.R_SI + displacement) & 0xffff;
+ case 5:
+ DECODE_PRINTF2("%04x[DI]", displacement);
+ return (M.x86.R_DI + displacement) & 0xffff;
+ case 6:
+ DECODE_PRINTF2("%04x[BP]", displacement);
+ M.x86.mode |= SYSMODE_SEG_DS_SS;
+ return (M.x86.R_BP + displacement) & 0xffff;
+ case 7:
+ DECODE_PRINTF2("%04x[BX]", displacement);
+ return (M.x86.R_BX + displacement) & 0xffff;
+ }
+ HALT_SYS();
+ }
+ return 0;
+ /*NOTREACHED */
+}
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: This file contains the code to implement the decoding and
+* emulation of the FPU instructions.
+*
+****************************************************************************/
+
+#include "x86emu/x86emui.h"
+
+/*----------------------------- Implementation ----------------------------*/
+
+/* opcode=0xd8 */
+void
+x86emuOp_esc_coprocess_d8(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("ESC D8\n");
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static const char *x86emu_fpu_op_d9_tab[] = {
+ "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ",
+ "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t",
+
+ "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ",
+ "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t",
+
+ "FLD\tDWORD PTR ", "ESC_D9\t", "FST\tDWORD PTR ", "FSTP\tDWORD PTR ",
+ "FLDENV\t", "FLDCW\t", "FSTENV\t", "FSTCW\t",
+};
+
+static const char *x86emu_fpu_op_d9_tab1[] = {
+ "FLD\t", "FLD\t", "FLD\t", "FLD\t",
+ "FLD\t", "FLD\t", "FLD\t", "FLD\t",
+
+ "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t",
+ "FXCH\t", "FXCH\t", "FXCH\t", "FXCH\t",
+
+ "FNOP", "ESC_D9", "ESC_D9", "ESC_D9",
+ "ESC_D9", "ESC_D9", "ESC_D9", "ESC_D9",
+
+ "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t",
+ "FSTP\t", "FSTP\t", "FSTP\t", "FSTP\t",
+
+ "FCHS", "FABS", "ESC_D9", "ESC_D9",
+ "FTST", "FXAM", "ESC_D9", "ESC_D9",
+
+ "FLD1", "FLDL2T", "FLDL2E", "FLDPI",
+ "FLDLG2", "FLDLN2", "FLDZ", "ESC_D9",
+
+ "F2XM1", "FYL2X", "FPTAN", "FPATAN",
+ "FXTRACT", "ESC_D9", "FDECSTP", "FINCSTP",
+
+ "FPREM", "FYL2XP1", "FSQRT", "ESC_D9",
+ "FRNDINT", "FSCALE", "ESC_D9", "ESC_D9",
+};
+
+#endif /* DEBUG */
+
+/* opcode=0xd9 */
+void
+x86emuOp_esc_coprocess_d9(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset = 0;
+ u8 stkelem = 0;
+
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (mod != 3) {
+ DECODE_PRINTINSTR32(x86emu_fpu_op_d9_tab, mod, rh, rl);
+ }
+ else {
+ DECODE_PRINTF(x86emu_fpu_op_d9_tab1[(rh << 3) + rl]);
+ }
+#endif
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 3: /* register to register */
+ stkelem = (u8) rl;
+ if (rh < 4) {
+ DECODE_PRINTF2("ST(%d)\n", stkelem);
+ }
+ else {
+ DECODE_PRINTF("\n");
+ }
+ break;
+ }
+#ifdef X86EMU_FPU_PRESENT
+ /* execute */
+ switch (mod) {
+ case 3:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_R_fld(X86EMU_FPU_STKTOP, stkelem);
+ break;
+ case 1:
+ x86emu_fpu_R_fxch(X86EMU_FPU_STKTOP, stkelem);
+ break;
+ case 2:
+ switch (rl) {
+ case 0:
+ x86emu_fpu_R_nop();
+ break;
+ default:
+ x86emu_fpu_illegal();
+ break;
+ }
+ case 3:
+ x86emu_fpu_R_fstp(X86EMU_FPU_STKTOP, stkelem);
+ break;
+ case 4:
+ switch (rl) {
+ case 0:
+ x86emu_fpu_R_fchs(X86EMU_FPU_STKTOP);
+ break;
+ case 1:
+ x86emu_fpu_R_fabs(X86EMU_FPU_STKTOP);
+ break;
+ case 4:
+ x86emu_fpu_R_ftst(X86EMU_FPU_STKTOP);
+ break;
+ case 5:
+ x86emu_fpu_R_fxam(X86EMU_FPU_STKTOP);
+ break;
+ default:
+ /* 2,3,6,7 */
+ x86emu_fpu_illegal();
+ break;
+ }
+ break;
+
+ case 5:
+ switch (rl) {
+ case 0:
+ x86emu_fpu_R_fld1(X86EMU_FPU_STKTOP);
+ break;
+ case 1:
+ x86emu_fpu_R_fldl2t(X86EMU_FPU_STKTOP);
+ break;
+ case 2:
+ x86emu_fpu_R_fldl2e(X86EMU_FPU_STKTOP);
+ break;
+ case 3:
+ x86emu_fpu_R_fldpi(X86EMU_FPU_STKTOP);
+ break;
+ case 4:
+ x86emu_fpu_R_fldlg2(X86EMU_FPU_STKTOP);
+ break;
+ case 5:
+ x86emu_fpu_R_fldln2(X86EMU_FPU_STKTOP);
+ break;
+ case 6:
+ x86emu_fpu_R_fldz(X86EMU_FPU_STKTOP);
+ break;
+ default:
+ /* 7 */
+ x86emu_fpu_illegal();
+ break;
+ }
+ break;
+
+ case 6:
+ switch (rl) {
+ case 0:
+ x86emu_fpu_R_f2xm1(X86EMU_FPU_STKTOP);
+ break;
+ case 1:
+ x86emu_fpu_R_fyl2x(X86EMU_FPU_STKTOP);
+ break;
+ case 2:
+ x86emu_fpu_R_fptan(X86EMU_FPU_STKTOP);
+ break;
+ case 3:
+ x86emu_fpu_R_fpatan(X86EMU_FPU_STKTOP);
+ break;
+ case 4:
+ x86emu_fpu_R_fxtract(X86EMU_FPU_STKTOP);
+ break;
+ case 5:
+ x86emu_fpu_illegal();
+ break;
+ case 6:
+ x86emu_fpu_R_decstp();
+ break;
+ case 7:
+ x86emu_fpu_R_incstp();
+ break;
+ }
+ break;
+
+ case 7:
+ switch (rl) {
+ case 0:
+ x86emu_fpu_R_fprem(X86EMU_FPU_STKTOP);
+ break;
+ case 1:
+ x86emu_fpu_R_fyl2xp1(X86EMU_FPU_STKTOP);
+ break;
+ case 2:
+ x86emu_fpu_R_fsqrt(X86EMU_FPU_STKTOP);
+ break;
+ case 3:
+ x86emu_fpu_illegal();
+ break;
+ case 4:
+ x86emu_fpu_R_frndint(X86EMU_FPU_STKTOP);
+ break;
+ case 5:
+ x86emu_fpu_R_fscale(X86EMU_FPU_STKTOP);
+ break;
+ case 6:
+ case 7:
+ default:
+ x86emu_fpu_illegal();
+ break;
+ }
+ break;
+
+ default:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_M_fld(X86EMU_FPU_FLOAT, destoffset);
+ break;
+ case 1:
+ x86emu_fpu_illegal();
+ break;
+ case 2:
+ x86emu_fpu_M_fst(X86EMU_FPU_FLOAT, destoffset);
+ break;
+ case 3:
+ x86emu_fpu_M_fstp(X86EMU_FPU_FLOAT, destoffset);
+ break;
+ case 4:
+ x86emu_fpu_M_fldenv(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 5:
+ x86emu_fpu_M_fldcw(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 6:
+ x86emu_fpu_M_fstenv(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 7:
+ x86emu_fpu_M_fstcw(X86EMU_FPU_WORD, destoffset);
+ break;
+ }
+ }
+ }
+#else
+ (void) destoffset;
+ (void) stkelem;
+#endif /* X86EMU_FPU_PRESENT */
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static const char *x86emu_fpu_op_da_tab[] = {
+ "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ",
+ "FICOMP\tDWORD PTR ",
+ "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ",
+ "FIDIVR\tDWORD PTR ",
+
+ "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ",
+ "FICOMP\tDWORD PTR ",
+ "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ",
+ "FIDIVR\tDWORD PTR ",
+
+ "FIADD\tDWORD PTR ", "FIMUL\tDWORD PTR ", "FICOM\tDWORD PTR ",
+ "FICOMP\tDWORD PTR ",
+ "FISUB\tDWORD PTR ", "FISUBR\tDWORD PTR ", "FIDIV\tDWORD PTR ",
+ "FIDIVR\tDWORD PTR ",
+
+ "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ",
+ "ESC_DA ", "ESC_DA ", "ESC_DA ", "ESC_DA ",
+};
+
+#endif /* DEBUG */
+
+/* opcode=0xda */
+void
+x86emuOp_esc_coprocess_da(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset = 0;
+ u8 stkelem = 0;
+
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ DECODE_PRINTINSTR32(x86emu_fpu_op_da_tab, mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 3: /* register to register */
+ stkelem = (u8) rl;
+ DECODE_PRINTF2("\tST(%d),ST\n", stkelem);
+ break;
+ }
+#ifdef X86EMU_FPU_PRESENT
+ switch (mod) {
+ case 3:
+ x86emu_fpu_illegal();
+ break;
+ default:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_M_iadd(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 1:
+ x86emu_fpu_M_imul(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 2:
+ x86emu_fpu_M_icom(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 3:
+ x86emu_fpu_M_icomp(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 4:
+ x86emu_fpu_M_isub(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 5:
+ x86emu_fpu_M_isubr(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 6:
+ x86emu_fpu_M_idiv(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 7:
+ x86emu_fpu_M_idivr(X86EMU_FPU_SHORT, destoffset);
+ break;
+ }
+ }
+#else
+ (void) destoffset;
+ (void) stkelem;
+#endif
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static const char *x86emu_fpu_op_db_tab[] = {
+ "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ",
+ "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ",
+
+ "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ",
+ "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ",
+
+ "FILD\tDWORD PTR ", "ESC_DB\t19", "FIST\tDWORD PTR ", "FISTP\tDWORD PTR ",
+ "ESC_DB\t1C", "FLD\tTBYTE PTR ", "ESC_DB\t1E", "FSTP\tTBYTE PTR ",
+};
+
+#endif /* DEBUG */
+
+/* opcode=0xdb */
+void
+x86emuOp_esc_coprocess_db(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset = 0;
+
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (mod != 3) {
+ DECODE_PRINTINSTR32(x86emu_fpu_op_db_tab, mod, rh, rl);
+ }
+ else if (rh == 4) { /* === 11 10 0 nnn */
+ switch (rl) {
+ case 0:
+ DECODE_PRINTF("FENI\n");
+ break;
+ case 1:
+ DECODE_PRINTF("FDISI\n");
+ break;
+ case 2:
+ DECODE_PRINTF("FCLEX\n");
+ break;
+ case 3:
+ DECODE_PRINTF("FINIT\n");
+ break;
+ }
+ }
+ else {
+ DECODE_PRINTF2("ESC_DB %0x\n", (mod << 6) + (rh << 3) + (rl));
+ }
+#endif /* DEBUG */
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ break;
+ case 3: /* register to register */
+ break;
+ }
+#ifdef X86EMU_FPU_PRESENT
+ /* execute */
+ switch (mod) {
+ case 3:
+ switch (rh) {
+ case 4:
+ switch (rl) {
+ case 0:
+ x86emu_fpu_R_feni();
+ break;
+ case 1:
+ x86emu_fpu_R_fdisi();
+ break;
+ case 2:
+ x86emu_fpu_R_fclex();
+ break;
+ case 3:
+ x86emu_fpu_R_finit();
+ break;
+ default:
+ x86emu_fpu_illegal();
+ break;
+ }
+ break;
+ default:
+ x86emu_fpu_illegal();
+ break;
+ }
+ break;
+ default:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_M_fild(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 1:
+ x86emu_fpu_illegal();
+ break;
+ case 2:
+ x86emu_fpu_M_fist(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 3:
+ x86emu_fpu_M_fistp(X86EMU_FPU_SHORT, destoffset);
+ break;
+ case 4:
+ x86emu_fpu_illegal();
+ break;
+ case 5:
+ x86emu_fpu_M_fld(X86EMU_FPU_LDBL, destoffset);
+ break;
+ case 6:
+ x86emu_fpu_illegal();
+ break;
+ case 7:
+ x86emu_fpu_M_fstp(X86EMU_FPU_LDBL, destoffset);
+ break;
+ }
+ }
+#else
+ (void) destoffset;
+#endif
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+static const char *x86emu_fpu_op_dc_tab[] = {
+ "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ",
+ "FCOMP\tQWORD PTR ",
+ "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ",
+ "FDIVR\tQWORD PTR ",
+
+ "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ",
+ "FCOMP\tQWORD PTR ",
+ "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ",
+ "FDIVR\tQWORD PTR ",
+
+ "FADD\tQWORD PTR ", "FMUL\tQWORD PTR ", "FCOM\tQWORD PTR ",
+ "FCOMP\tQWORD PTR ",
+ "FSUB\tQWORD PTR ", "FSUBR\tQWORD PTR ", "FDIV\tQWORD PTR ",
+ "FDIVR\tQWORD PTR ",
+
+ "FADD\t", "FMUL\t", "FCOM\t", "FCOMP\t",
+ "FSUBR\t", "FSUB\t", "FDIVR\t", "FDIV\t",
+};
+#endif /* DEBUG */
+
+/* opcode=0xdc */
+void
+x86emuOp_esc_coprocess_dc(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset = 0;
+ u8 stkelem = 0;
+
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ DECODE_PRINTINSTR32(x86emu_fpu_op_dc_tab, mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 3: /* register to register */
+ stkelem = (u8) rl;
+ DECODE_PRINTF2("\tST(%d),ST\n", stkelem);
+ break;
+ }
+#ifdef X86EMU_FPU_PRESENT
+ /* execute */
+ switch (mod) {
+ case 3:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_R_fadd(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 1:
+ x86emu_fpu_R_fmul(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 2:
+ x86emu_fpu_R_fcom(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 3:
+ x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 4:
+ x86emu_fpu_R_fsubr(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 5:
+ x86emu_fpu_R_fsub(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 6:
+ x86emu_fpu_R_fdivr(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 7:
+ x86emu_fpu_R_fdiv(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ }
+ break;
+ default:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_M_fadd(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 1:
+ x86emu_fpu_M_fmul(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 2:
+ x86emu_fpu_M_fcom(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 3:
+ x86emu_fpu_M_fcomp(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 4:
+ x86emu_fpu_M_fsub(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 5:
+ x86emu_fpu_M_fsubr(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 6:
+ x86emu_fpu_M_fdiv(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 7:
+ x86emu_fpu_M_fdivr(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ }
+ }
+#else
+ (void) destoffset;
+ (void) stkelem;
+#endif
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static const char *x86emu_fpu_op_dd_tab[] = {
+ "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ",
+ "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t",
+
+ "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ",
+ "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t",
+
+ "FLD\tQWORD PTR ", "ESC_DD\t29,", "FST\tQWORD PTR ", "FSTP\tQWORD PTR ",
+ "FRSTOR\t", "ESC_DD\t2D,", "FSAVE\t", "FSTSW\t",
+
+ "FFREE\t", "FXCH\t", "FST\t", "FSTP\t",
+ "ESC_DD\t2C,", "ESC_DD\t2D,", "ESC_DD\t2E,", "ESC_DD\t2F,",
+};
+
+#endif /* DEBUG */
+
+/* opcode=0xdd */
+void
+x86emuOp_esc_coprocess_dd(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset = 0;
+ u8 stkelem = 0;
+
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ DECODE_PRINTINSTR32(x86emu_fpu_op_dd_tab, mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 3: /* register to register */
+ stkelem = (u8) rl;
+ DECODE_PRINTF2("\tST(%d),ST\n", stkelem);
+ break;
+ }
+#ifdef X86EMU_FPU_PRESENT
+ switch (mod) {
+ case 3:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_R_ffree(stkelem);
+ break;
+ case 1:
+ x86emu_fpu_R_fxch(stkelem);
+ break;
+ case 2:
+ x86emu_fpu_R_fst(stkelem); /* register version */
+ break;
+ case 3:
+ x86emu_fpu_R_fstp(stkelem); /* register version */
+ break;
+ default:
+ x86emu_fpu_illegal();
+ break;
+ }
+ break;
+ default:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_M_fld(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 1:
+ x86emu_fpu_illegal();
+ break;
+ case 2:
+ x86emu_fpu_M_fst(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 3:
+ x86emu_fpu_M_fstp(X86EMU_FPU_DOUBLE, destoffset);
+ break;
+ case 4:
+ x86emu_fpu_M_frstor(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 5:
+ x86emu_fpu_illegal();
+ break;
+ case 6:
+ x86emu_fpu_M_fsave(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 7:
+ x86emu_fpu_M_fstsw(X86EMU_FPU_WORD, destoffset);
+ break;
+ }
+ }
+#else
+ (void) destoffset;
+ (void) stkelem;
+#endif
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static const char *x86emu_fpu_op_de_tab[] = {
+ "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ",
+ "FICOMP\tWORD PTR ",
+ "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ",
+ "FIDIVR\tWORD PTR ",
+
+ "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ",
+ "FICOMP\tWORD PTR ",
+ "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ",
+ "FIDIVR\tWORD PTR ",
+
+ "FIADD\tWORD PTR ", "FIMUL\tWORD PTR ", "FICOM\tWORD PTR ",
+ "FICOMP\tWORD PTR ",
+ "FISUB\tWORD PTR ", "FISUBR\tWORD PTR ", "FIDIV\tWORD PTR ",
+ "FIDIVR\tWORD PTR ",
+
+ "FADDP\t", "FMULP\t", "FCOMP\t", "FCOMPP\t",
+ "FSUBRP\t", "FSUBP\t", "FDIVRP\t", "FDIVP\t",
+};
+
+#endif /* DEBUG */
+
+/* opcode=0xde */
+void
+x86emuOp_esc_coprocess_de(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset = 0;
+ u8 stkelem = 0;
+
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ DECODE_PRINTINSTR32(x86emu_fpu_op_de_tab, mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 3: /* register to register */
+ stkelem = (u8) rl;
+ DECODE_PRINTF2("\tST(%d),ST\n", stkelem);
+ break;
+ }
+#ifdef X86EMU_FPU_PRESENT
+ switch (mod) {
+ case 3:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_R_faddp(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 1:
+ x86emu_fpu_R_fmulp(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 2:
+ x86emu_fpu_R_fcomp(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 3:
+ if (stkelem == 1)
+ x86emu_fpu_R_fcompp(stkelem, X86EMU_FPU_STKTOP);
+ else
+ x86emu_fpu_illegal();
+ break;
+ case 4:
+ x86emu_fpu_R_fsubrp(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 5:
+ x86emu_fpu_R_fsubp(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 6:
+ x86emu_fpu_R_fdivrp(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ case 7:
+ x86emu_fpu_R_fdivp(stkelem, X86EMU_FPU_STKTOP);
+ break;
+ }
+ break;
+ default:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_M_fiadd(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 1:
+ x86emu_fpu_M_fimul(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 2:
+ x86emu_fpu_M_ficom(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 3:
+ x86emu_fpu_M_ficomp(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 4:
+ x86emu_fpu_M_fisub(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 5:
+ x86emu_fpu_M_fisubr(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 6:
+ x86emu_fpu_M_fidiv(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 7:
+ x86emu_fpu_M_fidivr(X86EMU_FPU_WORD, destoffset);
+ break;
+ }
+ }
+#else
+ (void) destoffset;
+ (void) stkelem;
+#endif
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR_NO_TRACE();
+}
+
+#ifdef DEBUG
+
+static const char *x86emu_fpu_op_df_tab[] = {
+ /* mod == 00 */
+ "FILD\tWORD PTR ", "ESC_DF\t39\n", "FIST\tWORD PTR ", "FISTP\tWORD PTR ",
+ "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ",
+ "FISTP\tQWORD PTR ",
+
+ /* mod == 01 */
+ "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ",
+ "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ",
+ "FISTP\tQWORD PTR ",
+
+ /* mod == 10 */
+ "FILD\tWORD PTR ", "ESC_DF\t39 ", "FIST\tWORD PTR ", "FISTP\tWORD PTR ",
+ "FBLD\tTBYTE PTR ", "FILD\tQWORD PTR ", "FBSTP\tTBYTE PTR ",
+ "FISTP\tQWORD PTR ",
+
+ /* mod == 11 */
+ "FFREE\t", "FXCH\t", "FST\t", "FSTP\t",
+ "ESC_DF\t3C,", "ESC_DF\t3D,", "ESC_DF\t3E,", "ESC_DF\t3F,"
+};
+
+#endif /* DEBUG */
+
+/* opcode=0xdf */
+void
+x86emuOp_esc_coprocess_df(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset = 0;
+ u8 stkelem = 0;
+
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ DECODE_PRINTINSTR32(x86emu_fpu_op_df_tab, mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ break;
+ case 3: /* register to register */
+ stkelem = (u8) rl;
+ DECODE_PRINTF2("\tST(%d)\n", stkelem);
+ break;
+ }
+#ifdef X86EMU_FPU_PRESENT
+ switch (mod) {
+ case 3:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_R_ffree(stkelem);
+ break;
+ case 1:
+ x86emu_fpu_R_fxch(stkelem);
+ break;
+ case 2:
+ x86emu_fpu_R_fst(stkelem); /* register version */
+ break;
+ case 3:
+ x86emu_fpu_R_fstp(stkelem); /* register version */
+ break;
+ default:
+ x86emu_fpu_illegal();
+ break;
+ }
+ break;
+ default:
+ switch (rh) {
+ case 0:
+ x86emu_fpu_M_fild(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 1:
+ x86emu_fpu_illegal();
+ break;
+ case 2:
+ x86emu_fpu_M_fist(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 3:
+ x86emu_fpu_M_fistp(X86EMU_FPU_WORD, destoffset);
+ break;
+ case 4:
+ x86emu_fpu_M_fbld(X86EMU_FPU_BSD, destoffset);
+ break;
+ case 5:
+ x86emu_fpu_M_fild(X86EMU_FPU_LONG, destoffset);
+ break;
+ case 6:
+ x86emu_fpu_M_fbstp(X86EMU_FPU_BSD, destoffset);
+ break;
+ case 7:
+ x86emu_fpu_M_fistp(X86EMU_FPU_LONG, destoffset);
+ break;
+ }
+ }
+#else
+ (void) destoffset;
+ (void) stkelem;
+#endif
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR_NO_TRACE();
+}
--- /dev/null
+srcs_xorg_x86emu = [
+ 'debug.c',
+ 'decode.c',
+ 'fpu.c',
+ 'ops2.c',
+ 'ops.c',
+ 'prim_ops.c',
+ 'sys.c',
+]
+
+xorg_x86emu = static_library('x86emu',
+ srcs_xorg_x86emu,
+ include_directories: [inc, xorg_inc],
+ dependencies: common_dep,
+)
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: This file includes subroutines to implement the decoding
+* and emulation of all the x86 processor instructions.
+*
+* There are approximately 250 subroutines in here, which correspond
+* to the 256 byte-"opcodes" found on the 8086. The table which
+* dispatches this is found in the files optab.[ch].
+*
+* Each opcode proc has a comment preceeding it which gives it's table
+* address. Several opcodes are missing (undefined) in the table.
+*
+* Each proc includes information for decoding (DECODE_PRINTF and
+* DECODE_PRINTF2), debugging (TRACE_REGS, SINGLE_STEP), and misc
+* functions (START_OF_INSTR, END_OF_INSTR).
+*
+* Many of the procedures are *VERY* similar in coding. This has
+* allowed for a very large amount of code to be generated in a fairly
+* short amount of time (i.e. cut, paste, and modify). The result is
+* that much of the code below could have been folded into subroutines
+* for a large reduction in size of this file. The downside would be
+* that there would be a penalty in execution speed. The file could
+* also have been *MUCH* larger by inlining certain functions which
+* were called. This could have resulted even faster execution. The
+* prime directive I used to decide whether to inline the code or to
+* modularize it, was basically: 1) no unnecessary subroutine calls,
+* 2) no routines more than about 200 lines in size, and 3) modularize
+* any code that I might not get right the first time. The fetch_*
+* subroutines fall into the latter category. The The decode_* fall
+* into the second category. The coding of the "switch(mod){ .... }"
+* in many of the subroutines below falls into the first category.
+* Especially, the coding of {add,and,or,sub,...}_{byte,word}
+* subroutines are an especially glaring case of the third guideline.
+* Since so much of the code is cloned from other modules (compare
+* opcode #00 to opcode #01), making the basic operations subroutine
+* calls is especially important; otherwise mistakes in coding an
+* "add" would represent a nightmare in maintenance.
+*
+****************************************************************************/
+
+#include "x86emu/x86emui.h"
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+PARAMETERS:
+op1 - Instruction op code
+
+REMARKS:
+Handles illegal opcodes.
+****************************************************************************/
+static void
+x86emuOp_illegal_op(u8 op1)
+{
+ START_OF_INSTR();
+ if (M.x86.R_SP != 0) {
+ DECODE_PRINTF("ILLEGAL X86 OPCODE\n");
+ TRACE_REGS();
+ DB(printk("%04x:%04x: %02X ILLEGAL X86 OPCODE!\n",
+ M.x86.R_CS, M.x86.R_IP - 1, op1));
+ HALT_SYS();
+ }
+ else {
+ /* If we get here, it means the stack pointer is back to zero
+ * so we are just returning from an emulator service call
+ * so therte is no need to display an error message. We trap
+ * the emulator with an 0xF1 opcode to finish the service
+ * call.
+ */
+ X86EMU_halt_sys();
+ }
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x00
+****************************************************************************/
+static void
+x86emuOp_add_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+ u8 *destreg, *srcreg;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADD\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x01
+****************************************************************************/
+static void
+x86emuOp_add_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADD\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = add_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x02
+****************************************************************************/
+static void
+x86emuOp_add_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADD\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_byte(*destreg, srcval);
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_byte(*destreg, srcval);
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_byte(*destreg, srcval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x03
+****************************************************************************/
+static void
+x86emuOp_add_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADD\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_word(*destreg, srcval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_word(*destreg, srcval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = add_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x04
+****************************************************************************/
+static void
+x86emuOp_add_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADD\tAL,");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ M.x86.R_AL = add_byte(M.x86.R_AL, srcval);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x05
+****************************************************************************/
+static void
+x86emuOp_add_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("ADD\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("ADD\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = add_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ M.x86.R_AX = add_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x06
+****************************************************************************/
+static void
+x86emuOp_push_ES(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("PUSH\tES\n");
+ TRACE_AND_STEP();
+ push_word(M.x86.R_ES);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x07
+****************************************************************************/
+static void
+x86emuOp_pop_ES(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("POP\tES\n");
+ TRACE_AND_STEP();
+ M.x86.R_ES = pop_word();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x08
+****************************************************************************/
+static void
+x86emuOp_or_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("OR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x09
+****************************************************************************/
+static void
+x86emuOp_or_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("OR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = or_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0a
+****************************************************************************/
+static void
+x86emuOp_or_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("OR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_byte(*destreg, srcval);
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_byte(*destreg, srcval);
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_byte(*destreg, srcval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0b
+****************************************************************************/
+static void
+x86emuOp_or_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("OR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_word(*destreg, srcval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_word(*destreg, srcval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = or_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0c
+****************************************************************************/
+static void
+x86emuOp_or_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("OR\tAL,");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ M.x86.R_AL = or_byte(M.x86.R_AL, srcval);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0d
+****************************************************************************/
+static void
+x86emuOp_or_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("OR\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("OR\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = or_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ M.x86.R_AX = or_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0e
+****************************************************************************/
+static void
+x86emuOp_push_CS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("PUSH\tCS\n");
+ TRACE_AND_STEP();
+ push_word(M.x86.R_CS);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f. Escape for two-byte opcode (286 or better)
+****************************************************************************/
+static void
+x86emuOp_two_byte(u8 X86EMU_UNUSED(op1))
+{
+ u8 op2 = (*sys_rdb) (((u32) M.x86.R_CS << 4) + (M.x86.R_IP++));
+
+ INC_DECODED_INST_LEN(1);
+ (*x86emu_optab2[op2]) (op2);
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x10
+****************************************************************************/
+static void
+x86emuOp_adc_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADC\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x11
+****************************************************************************/
+static void
+x86emuOp_adc_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADC\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = adc_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x12
+****************************************************************************/
+static void
+x86emuOp_adc_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADC\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_byte(*destreg, srcval);
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_byte(*destreg, srcval);
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_byte(*destreg, srcval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x13
+****************************************************************************/
+static void
+x86emuOp_adc_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADC\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_word(*destreg, srcval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_word(*destreg, srcval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = adc_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x14
+****************************************************************************/
+static void
+x86emuOp_adc_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("ADC\tAL,");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ M.x86.R_AL = adc_byte(M.x86.R_AL, srcval);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x15
+****************************************************************************/
+static void
+x86emuOp_adc_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("ADC\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("ADC\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = adc_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ M.x86.R_AX = adc_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x16
+****************************************************************************/
+static void
+x86emuOp_push_SS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("PUSH\tSS\n");
+ TRACE_AND_STEP();
+ push_word(M.x86.R_SS);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x17
+****************************************************************************/
+static void
+x86emuOp_pop_SS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("POP\tSS\n");
+ TRACE_AND_STEP();
+ M.x86.R_SS = pop_word();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x18
+****************************************************************************/
+static void
+x86emuOp_sbb_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SBB\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x19
+****************************************************************************/
+static void
+x86emuOp_sbb_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SBB\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sbb_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1a
+****************************************************************************/
+static void
+x86emuOp_sbb_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SBB\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_byte(*destreg, srcval);
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_byte(*destreg, srcval);
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_byte(*destreg, srcval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1b
+****************************************************************************/
+static void
+x86emuOp_sbb_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SBB\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_word(*destreg, srcval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_word(*destreg, srcval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sbb_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1c
+****************************************************************************/
+static void
+x86emuOp_sbb_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SBB\tAL,");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ M.x86.R_AL = sbb_byte(M.x86.R_AL, srcval);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1d
+****************************************************************************/
+static void
+x86emuOp_sbb_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("SBB\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("SBB\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = sbb_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ M.x86.R_AX = sbb_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1e
+****************************************************************************/
+static void
+x86emuOp_push_DS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("PUSH\tDS\n");
+ TRACE_AND_STEP();
+ push_word(M.x86.R_DS);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x1f
+****************************************************************************/
+static void
+x86emuOp_pop_DS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("POP\tDS\n");
+ TRACE_AND_STEP();
+ M.x86.R_DS = pop_word();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x20
+****************************************************************************/
+static void
+x86emuOp_and_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("AND\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x21
+****************************************************************************/
+static void
+x86emuOp_and_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("AND\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = and_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x22
+****************************************************************************/
+static void
+x86emuOp_and_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("AND\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_byte(*destreg, srcval);
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_byte(*destreg, srcval);
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_byte(*destreg, srcval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x23
+****************************************************************************/
+static void
+x86emuOp_and_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("AND\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_long(*destreg, srcval);
+ break;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_word(*destreg, srcval);
+ break;
+ }
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_word(*destreg, srcval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = and_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x24
+****************************************************************************/
+static void
+x86emuOp_and_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("AND\tAL,");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ M.x86.R_AL = and_byte(M.x86.R_AL, srcval);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x25
+****************************************************************************/
+static void
+x86emuOp_and_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("AND\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("AND\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = and_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ M.x86.R_AX = and_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x26
+****************************************************************************/
+static void
+x86emuOp_segovr_ES(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("ES:\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_SEGOVR_ES;
+ /*
+ * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+ * opcode subroutines we do not want to do this.
+ */
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x27
+****************************************************************************/
+static void
+x86emuOp_daa(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("DAA\n");
+ TRACE_AND_STEP();
+ M.x86.R_AL = daa_byte(M.x86.R_AL);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x28
+****************************************************************************/
+static void
+x86emuOp_sub_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SUB\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x29
+****************************************************************************/
+static void
+x86emuOp_sub_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SUB\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = sub_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2a
+****************************************************************************/
+static void
+x86emuOp_sub_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SUB\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_byte(*destreg, srcval);
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_byte(*destreg, srcval);
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_byte(*destreg, srcval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2b
+****************************************************************************/
+static void
+x86emuOp_sub_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SUB\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_word(*destreg, srcval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_word(*destreg, srcval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = sub_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2c
+****************************************************************************/
+static void
+x86emuOp_sub_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SUB\tAL,");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ M.x86.R_AL = sub_byte(M.x86.R_AL, srcval);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2d
+****************************************************************************/
+static void
+x86emuOp_sub_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("SUB\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("SUB\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = sub_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ M.x86.R_AX = sub_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2e
+****************************************************************************/
+static void
+x86emuOp_segovr_CS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("CS:\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_SEGOVR_CS;
+ /* note no DECODE_CLEAR_SEGOVR here. */
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x2f
+****************************************************************************/
+static void
+x86emuOp_das(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("DAS\n");
+ TRACE_AND_STEP();
+ M.x86.R_AL = das_byte(M.x86.R_AL);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x30
+****************************************************************************/
+static void
+x86emuOp_xor_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("XOR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_byte(destval, *srcreg);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x31
+****************************************************************************/
+static void
+x86emuOp_xor_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("XOR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_long(destval, *srcreg);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = xor_word(destval, *srcreg);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x32
+****************************************************************************/
+static void
+x86emuOp_xor_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("XOR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_byte(*destreg, srcval);
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_byte(*destreg, srcval);
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_byte(*destreg, srcval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x33
+****************************************************************************/
+static void
+x86emuOp_xor_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("XOR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_word(*destreg, srcval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_word(*destreg, srcval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = xor_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x34
+****************************************************************************/
+static void
+x86emuOp_xor_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("XOR\tAL,");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ M.x86.R_AL = xor_byte(M.x86.R_AL, srcval);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x35
+****************************************************************************/
+static void
+x86emuOp_xor_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("XOR\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("XOR\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = xor_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ M.x86.R_AX = xor_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x36
+****************************************************************************/
+static void
+x86emuOp_segovr_SS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("SS:\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_SEGOVR_SS;
+ /* no DECODE_CLEAR_SEGOVR ! */
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x37
+****************************************************************************/
+static void
+x86emuOp_aaa(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("AAA\n");
+ TRACE_AND_STEP();
+ M.x86.R_AX = aaa_word(M.x86.R_AX);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x38
+****************************************************************************/
+static void
+x86emuOp_cmp_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+ u8 *destreg, *srcreg;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("CMP\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_byte(destval, *srcreg);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_byte(destval, *srcreg);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_byte(destval, *srcreg);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x39
+****************************************************************************/
+static void
+x86emuOp_cmp_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("CMP\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_long(destval, *srcreg);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_word(destval, *srcreg);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_long(destval, *srcreg);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_word(destval, *srcreg);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_long(destval, *srcreg);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_word(destval, *srcreg);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3a
+****************************************************************************/
+static void
+x86emuOp_cmp_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("CMP\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_byte(*destreg, srcval);
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_byte(*destreg, srcval);
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_byte(*destreg, srcval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3b
+****************************************************************************/
+static void
+x86emuOp_cmp_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("CMP\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_word(*destreg, srcval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_word(*destreg, srcval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ cmp_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3c
+****************************************************************************/
+static void
+x86emuOp_cmp_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("CMP\tAL,");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ cmp_byte(M.x86.R_AL, srcval);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3d
+****************************************************************************/
+static void
+x86emuOp_cmp_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("CMP\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("CMP\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ cmp_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ cmp_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3e
+****************************************************************************/
+static void
+x86emuOp_segovr_DS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("DS:\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_SEGOVR_DS;
+ /* NO DECODE_CLEAR_SEGOVR! */
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x3f
+****************************************************************************/
+static void
+x86emuOp_aas(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("AAS\n");
+ TRACE_AND_STEP();
+ M.x86.R_AX = aas_word(M.x86.R_AX);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x40
+****************************************************************************/
+static void
+x86emuOp_inc_AX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tEAX\n");
+ }
+ else {
+ DECODE_PRINTF("INC\tAX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = inc_long(M.x86.R_EAX);
+ }
+ else {
+ M.x86.R_AX = inc_word(M.x86.R_AX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x41
+****************************************************************************/
+static void
+x86emuOp_inc_CX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tECX\n");
+ }
+ else {
+ DECODE_PRINTF("INC\tCX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ECX = inc_long(M.x86.R_ECX);
+ }
+ else {
+ M.x86.R_CX = inc_word(M.x86.R_CX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x42
+****************************************************************************/
+static void
+x86emuOp_inc_DX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tEDX\n");
+ }
+ else {
+ DECODE_PRINTF("INC\tDX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDX = inc_long(M.x86.R_EDX);
+ }
+ else {
+ M.x86.R_DX = inc_word(M.x86.R_DX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x43
+****************************************************************************/
+static void
+x86emuOp_inc_BX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tEBX\n");
+ }
+ else {
+ DECODE_PRINTF("INC\tBX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBX = inc_long(M.x86.R_EBX);
+ }
+ else {
+ M.x86.R_BX = inc_word(M.x86.R_BX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x44
+****************************************************************************/
+static void
+x86emuOp_inc_SP(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tESP\n");
+ }
+ else {
+ DECODE_PRINTF("INC\tSP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ESP = inc_long(M.x86.R_ESP);
+ }
+ else {
+ M.x86.R_SP = inc_word(M.x86.R_SP);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x45
+****************************************************************************/
+static void
+x86emuOp_inc_BP(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tEBP\n");
+ }
+ else {
+ DECODE_PRINTF("INC\tBP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBP = inc_long(M.x86.R_EBP);
+ }
+ else {
+ M.x86.R_BP = inc_word(M.x86.R_BP);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x46
+****************************************************************************/
+static void
+x86emuOp_inc_SI(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tESI\n");
+ }
+ else {
+ DECODE_PRINTF("INC\tSI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ESI = inc_long(M.x86.R_ESI);
+ }
+ else {
+ M.x86.R_SI = inc_word(M.x86.R_SI);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x47
+****************************************************************************/
+static void
+x86emuOp_inc_DI(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tEDI\n");
+ }
+ else {
+ DECODE_PRINTF("INC\tDI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDI = inc_long(M.x86.R_EDI);
+ }
+ else {
+ M.x86.R_DI = inc_word(M.x86.R_DI);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x48
+****************************************************************************/
+static void
+x86emuOp_dec_AX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tEAX\n");
+ }
+ else {
+ DECODE_PRINTF("DEC\tAX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = dec_long(M.x86.R_EAX);
+ }
+ else {
+ M.x86.R_AX = dec_word(M.x86.R_AX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x49
+****************************************************************************/
+static void
+x86emuOp_dec_CX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tECX\n");
+ }
+ else {
+ DECODE_PRINTF("DEC\tCX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ECX = dec_long(M.x86.R_ECX);
+ }
+ else {
+ M.x86.R_CX = dec_word(M.x86.R_CX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4a
+****************************************************************************/
+static void
+x86emuOp_dec_DX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tEDX\n");
+ }
+ else {
+ DECODE_PRINTF("DEC\tDX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDX = dec_long(M.x86.R_EDX);
+ }
+ else {
+ M.x86.R_DX = dec_word(M.x86.R_DX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4b
+****************************************************************************/
+static void
+x86emuOp_dec_BX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tEBX\n");
+ }
+ else {
+ DECODE_PRINTF("DEC\tBX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBX = dec_long(M.x86.R_EBX);
+ }
+ else {
+ M.x86.R_BX = dec_word(M.x86.R_BX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4c
+****************************************************************************/
+static void
+x86emuOp_dec_SP(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tESP\n");
+ }
+ else {
+ DECODE_PRINTF("DEC\tSP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ESP = dec_long(M.x86.R_ESP);
+ }
+ else {
+ M.x86.R_SP = dec_word(M.x86.R_SP);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4d
+****************************************************************************/
+static void
+x86emuOp_dec_BP(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tEBP\n");
+ }
+ else {
+ DECODE_PRINTF("DEC\tBP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBP = dec_long(M.x86.R_EBP);
+ }
+ else {
+ M.x86.R_BP = dec_word(M.x86.R_BP);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4e
+****************************************************************************/
+static void
+x86emuOp_dec_SI(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tESI\n");
+ }
+ else {
+ DECODE_PRINTF("DEC\tSI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ESI = dec_long(M.x86.R_ESI);
+ }
+ else {
+ M.x86.R_SI = dec_word(M.x86.R_SI);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x4f
+****************************************************************************/
+static void
+x86emuOp_dec_DI(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tEDI\n");
+ }
+ else {
+ DECODE_PRINTF("DEC\tDI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDI = dec_long(M.x86.R_EDI);
+ }
+ else {
+ M.x86.R_DI = dec_word(M.x86.R_DI);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x50
+****************************************************************************/
+static void
+x86emuOp_push_AX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSH\tEAX\n");
+ }
+ else {
+ DECODE_PRINTF("PUSH\tAX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_EAX);
+ }
+ else {
+ push_word(M.x86.R_AX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x51
+****************************************************************************/
+static void
+x86emuOp_push_CX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSH\tECX\n");
+ }
+ else {
+ DECODE_PRINTF("PUSH\tCX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_ECX);
+ }
+ else {
+ push_word(M.x86.R_CX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x52
+****************************************************************************/
+static void
+x86emuOp_push_DX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSH\tEDX\n");
+ }
+ else {
+ DECODE_PRINTF("PUSH\tDX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_EDX);
+ }
+ else {
+ push_word(M.x86.R_DX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x53
+****************************************************************************/
+static void
+x86emuOp_push_BX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSH\tEBX\n");
+ }
+ else {
+ DECODE_PRINTF("PUSH\tBX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_EBX);
+ }
+ else {
+ push_word(M.x86.R_BX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x54
+****************************************************************************/
+static void
+x86emuOp_push_SP(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSH\tESP\n");
+ }
+ else {
+ DECODE_PRINTF("PUSH\tSP\n");
+ }
+ TRACE_AND_STEP();
+ /* Always push (E)SP, since we are emulating an i386 and above
+ * processor. This is necessary as some BIOS'es use this to check
+ * what type of processor is in the system.
+ */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_ESP);
+ }
+ else {
+ push_word((u16) (M.x86.R_SP));
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x55
+****************************************************************************/
+static void
+x86emuOp_push_BP(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSH\tEBP\n");
+ }
+ else {
+ DECODE_PRINTF("PUSH\tBP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_EBP);
+ }
+ else {
+ push_word(M.x86.R_BP);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x56
+****************************************************************************/
+static void
+x86emuOp_push_SI(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSH\tESI\n");
+ }
+ else {
+ DECODE_PRINTF("PUSH\tSI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_ESI);
+ }
+ else {
+ push_word(M.x86.R_SI);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x57
+****************************************************************************/
+static void
+x86emuOp_push_DI(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSH\tEDI\n");
+ }
+ else {
+ DECODE_PRINTF("PUSH\tDI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_EDI);
+ }
+ else {
+ push_word(M.x86.R_DI);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x58
+****************************************************************************/
+static void
+x86emuOp_pop_AX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POP\tEAX\n");
+ }
+ else {
+ DECODE_PRINTF("POP\tAX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = pop_long();
+ }
+ else {
+ M.x86.R_AX = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x59
+****************************************************************************/
+static void
+x86emuOp_pop_CX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POP\tECX\n");
+ }
+ else {
+ DECODE_PRINTF("POP\tCX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ECX = pop_long();
+ }
+ else {
+ M.x86.R_CX = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5a
+****************************************************************************/
+static void
+x86emuOp_pop_DX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POP\tEDX\n");
+ }
+ else {
+ DECODE_PRINTF("POP\tDX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDX = pop_long();
+ }
+ else {
+ M.x86.R_DX = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5b
+****************************************************************************/
+static void
+x86emuOp_pop_BX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POP\tEBX\n");
+ }
+ else {
+ DECODE_PRINTF("POP\tBX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBX = pop_long();
+ }
+ else {
+ M.x86.R_BX = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5c
+****************************************************************************/
+static void
+x86emuOp_pop_SP(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POP\tESP\n");
+ }
+ else {
+ DECODE_PRINTF("POP\tSP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ESP = pop_long();
+ }
+ else {
+ M.x86.R_SP = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5d
+****************************************************************************/
+static void
+x86emuOp_pop_BP(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POP\tEBP\n");
+ }
+ else {
+ DECODE_PRINTF("POP\tBP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBP = pop_long();
+ }
+ else {
+ M.x86.R_BP = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5e
+****************************************************************************/
+static void
+x86emuOp_pop_SI(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POP\tESI\n");
+ }
+ else {
+ DECODE_PRINTF("POP\tSI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ESI = pop_long();
+ }
+ else {
+ M.x86.R_SI = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x5f
+****************************************************************************/
+static void
+x86emuOp_pop_DI(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POP\tEDI\n");
+ }
+ else {
+ DECODE_PRINTF("POP\tDI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDI = pop_long();
+ }
+ else {
+ M.x86.R_DI = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x60
+****************************************************************************/
+static void
+x86emuOp_push_all(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSHAD\n");
+ }
+ else {
+ DECODE_PRINTF("PUSHA\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 old_sp = M.x86.R_ESP;
+
+ push_long(M.x86.R_EAX);
+ push_long(M.x86.R_ECX);
+ push_long(M.x86.R_EDX);
+ push_long(M.x86.R_EBX);
+ push_long(old_sp);
+ push_long(M.x86.R_EBP);
+ push_long(M.x86.R_ESI);
+ push_long(M.x86.R_EDI);
+ }
+ else {
+ u16 old_sp = M.x86.R_SP;
+
+ push_word(M.x86.R_AX);
+ push_word(M.x86.R_CX);
+ push_word(M.x86.R_DX);
+ push_word(M.x86.R_BX);
+ push_word(old_sp);
+ push_word(M.x86.R_BP);
+ push_word(M.x86.R_SI);
+ push_word(M.x86.R_DI);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x61
+****************************************************************************/
+static void
+x86emuOp_pop_all(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POPAD\n");
+ }
+ else {
+ DECODE_PRINTF("POPA\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDI = pop_long();
+ M.x86.R_ESI = pop_long();
+ M.x86.R_EBP = pop_long();
+ M.x86.R_ESP += 4; /* skip ESP */
+ M.x86.R_EBX = pop_long();
+ M.x86.R_EDX = pop_long();
+ M.x86.R_ECX = pop_long();
+ M.x86.R_EAX = pop_long();
+ }
+ else {
+ M.x86.R_DI = pop_word();
+ M.x86.R_SI = pop_word();
+ M.x86.R_BP = pop_word();
+ M.x86.R_SP += 2; /* skip SP */
+ M.x86.R_BX = pop_word();
+ M.x86.R_DX = pop_word();
+ M.x86.R_CX = pop_word();
+ M.x86.R_AX = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/*opcode 0x62 ILLEGAL OP, calls x86emuOp_illegal_op() */
+/*opcode 0x63 ILLEGAL OP, calls x86emuOp_illegal_op() */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x64
+****************************************************************************/
+static void
+x86emuOp_segovr_FS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("FS:\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_SEGOVR_FS;
+ /*
+ * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+ * opcode subroutines we do not want to do this.
+ */
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x65
+****************************************************************************/
+static void
+x86emuOp_segovr_GS(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("GS:\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_SEGOVR_GS;
+ /*
+ * note the lack of DECODE_CLEAR_SEGOVR(r) since, here is one of 4
+ * opcode subroutines we do not want to do this.
+ */
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x66 - prefix for 32-bit register
+****************************************************************************/
+static void
+x86emuOp_prefix_data(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("DATA:\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_PREFIX_DATA;
+ /* note no DECODE_CLEAR_SEGOVR here. */
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x67 - prefix for 32-bit address
+****************************************************************************/
+static void
+x86emuOp_prefix_addr(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("ADDR:\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_PREFIX_ADDR;
+ /* note no DECODE_CLEAR_SEGOVR here. */
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x68
+****************************************************************************/
+static void
+x86emuOp_push_word_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 imm;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ imm = fetch_long_imm();
+ }
+ else {
+ imm = fetch_word_imm();
+ }
+ DECODE_PRINTF2("PUSH\t%x\n", imm);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(imm);
+ }
+ else {
+ push_word((u16) imm);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x69
+****************************************************************************/
+static void
+x86emuOp_imul_word_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("IMUL\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+ s32 imm;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+ s16 imm;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ res = (s16) srcval *(s16) imm;
+
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+ s32 imm;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+ s16 imm;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ res = (s16) srcval *(s16) imm;
+
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+ s32 imm;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+ s16 imm;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ res = (s16) srcval *(s16) imm;
+
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+ u32 res_lo, res_hi;
+ s32 imm;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) * srcreg, (s32) imm);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg, *srcreg;
+ u32 res;
+ s16 imm;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ res = (s16) * srcreg * (s16) imm;
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6a
+****************************************************************************/
+static void
+x86emuOp_push_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+ s16 imm;
+
+ START_OF_INSTR();
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2("PUSH\t%d\n", imm);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long((s32) imm);
+ }
+ else {
+ push_word(imm);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6b
+****************************************************************************/
+static void
+x86emuOp_imul_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+ s8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("IMUL\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ res = (s16) srcval *(s16) imm;
+
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ res = (s16) srcval *(s16) imm;
+
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) srcval, (s32) imm);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ res = (s16) srcval *(s16) imm;
+
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+ u32 res_lo, res_hi;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) * srcreg, (s32) imm);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg, *srcreg;
+ u32 res;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%d\n", (s32) imm);
+ res = (s16) * srcreg * (s16) imm;
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6c
+****************************************************************************/
+static void
+x86emuOp_ins_byte(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("INSB\n");
+ ins(1);
+ TRACE_AND_STEP();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6d
+****************************************************************************/
+static void
+x86emuOp_ins_word(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INSD\n");
+ ins(4);
+ }
+ else {
+ DECODE_PRINTF("INSW\n");
+ ins(2);
+ }
+ TRACE_AND_STEP();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6e
+****************************************************************************/
+static void
+x86emuOp_outs_byte(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("OUTSB\n");
+ outs(1);
+ TRACE_AND_STEP();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x6f
+****************************************************************************/
+static void
+x86emuOp_outs_word(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("OUTSD\n");
+ outs(4);
+ }
+ else {
+ DECODE_PRINTF("OUTSW\n");
+ outs(2);
+ }
+ TRACE_AND_STEP();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x70
+****************************************************************************/
+static void
+x86emuOp_jump_near_O(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if overflow flag is set */
+ START_OF_INSTR();
+ DECODE_PRINTF("JO\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_OF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x71
+****************************************************************************/
+static void
+x86emuOp_jump_near_NO(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if overflow is not set */
+ START_OF_INSTR();
+ DECODE_PRINTF("JNO\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (!ACCESS_FLAG(F_OF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x72
+****************************************************************************/
+static void
+x86emuOp_jump_near_B(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if carry flag is set. */
+ START_OF_INSTR();
+ DECODE_PRINTF("JB\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_CF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x73
+****************************************************************************/
+static void
+x86emuOp_jump_near_NB(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if carry flag is clear. */
+ START_OF_INSTR();
+ DECODE_PRINTF("JNB\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (!ACCESS_FLAG(F_CF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x74
+****************************************************************************/
+static void
+x86emuOp_jump_near_Z(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if zero flag is set. */
+ START_OF_INSTR();
+ DECODE_PRINTF("JZ\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_ZF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x75
+****************************************************************************/
+static void
+x86emuOp_jump_near_NZ(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if zero flag is clear. */
+ START_OF_INSTR();
+ DECODE_PRINTF("JNZ\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (!ACCESS_FLAG(F_ZF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x76
+****************************************************************************/
+static void
+x86emuOp_jump_near_BE(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if carry flag is set or if the zero
+ flag is set. */
+ START_OF_INSTR();
+ DECODE_PRINTF("JBE\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x77
+****************************************************************************/
+static void
+x86emuOp_jump_near_NBE(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if carry flag is clear and if the zero
+ flag is clear */
+ START_OF_INSTR();
+ DECODE_PRINTF("JNBE\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (!(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF)))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x78
+****************************************************************************/
+static void
+x86emuOp_jump_near_S(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if sign flag is set */
+ START_OF_INSTR();
+ DECODE_PRINTF("JS\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_SF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x79
+****************************************************************************/
+static void
+x86emuOp_jump_near_NS(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if sign flag is clear */
+ START_OF_INSTR();
+ DECODE_PRINTF("JNS\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (!ACCESS_FLAG(F_SF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7a
+****************************************************************************/
+static void
+x86emuOp_jump_near_P(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if parity flag is set (even parity) */
+ START_OF_INSTR();
+ DECODE_PRINTF("JP\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_PF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7b
+****************************************************************************/
+static void
+x86emuOp_jump_near_NP(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+
+ /* jump to byte offset if parity flag is clear (odd parity) */
+ START_OF_INSTR();
+ DECODE_PRINTF("JNP\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (!ACCESS_FLAG(F_PF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7c
+****************************************************************************/
+static void
+x86emuOp_jump_near_L(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+ int sf, of;
+
+ /* jump to byte offset if sign flag not equal to overflow flag. */
+ START_OF_INSTR();
+ DECODE_PRINTF("JL\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ sf = ACCESS_FLAG(F_SF) != 0;
+ of = ACCESS_FLAG(F_OF) != 0;
+ if (sf ^ of)
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7d
+****************************************************************************/
+static void
+x86emuOp_jump_near_NL(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+ int sf, of;
+
+ /* jump to byte offset if sign flag not equal to overflow flag. */
+ START_OF_INSTR();
+ DECODE_PRINTF("JNL\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ sf = ACCESS_FLAG(F_SF) != 0;
+ of = ACCESS_FLAG(F_OF) != 0;
+ /* note: inverse of above, but using == instead of xor. */
+ if (sf == of)
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7e
+****************************************************************************/
+static void
+x86emuOp_jump_near_LE(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+ int sf, of;
+
+ /* jump to byte offset if sign flag not equal to overflow flag
+ or the zero flag is set */
+ START_OF_INSTR();
+ DECODE_PRINTF("JLE\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ sf = ACCESS_FLAG(F_SF) != 0;
+ of = ACCESS_FLAG(F_OF) != 0;
+ if ((sf ^ of) || ACCESS_FLAG(F_ZF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x7f
+****************************************************************************/
+static void
+x86emuOp_jump_near_NLE(u8 X86EMU_UNUSED(op1))
+{
+ s8 offset;
+ u16 target;
+ int sf, of;
+
+ /* jump to byte offset if sign flag equal to overflow flag.
+ and the zero flag is clear */
+ START_OF_INSTR();
+ DECODE_PRINTF("JNLE\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + (s16) offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ sf = ACCESS_FLAG(F_SF) != 0;
+ of = ACCESS_FLAG(F_OF) != 0;
+ if ((sf == of) && !ACCESS_FLAG(F_ZF))
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+static u8(*opc80_byte_operation[]) (u8 d, u8 s) = {
+ add_byte, /* 00 */
+ or_byte, /* 01 */
+ adc_byte, /* 02 */
+ sbb_byte, /* 03 */
+ and_byte, /* 04 */
+ sub_byte, /* 05 */
+ xor_byte, /* 06 */
+ cmp_byte, /* 07 */
+};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x80
+****************************************************************************/
+static void
+x86emuOp_opc80_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg;
+ uint destoffset;
+ u8 imm;
+ u8 destval;
+
+ /*
+ * Weirdo special case instruction format. Part of the opcode
+ * held below in "RH". Doubly nested case would result, except
+ * that the decoded instruction
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ADD\t");
+ break;
+ case 1:
+ DECODE_PRINTF("OR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("ADC\t");
+ break;
+ case 3:
+ DECODE_PRINTF("SBB\t");
+ break;
+ case 4:
+ DECODE_PRINTF("AND\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SUB\t");
+ break;
+ case 6:
+ DECODE_PRINTF("XOR\t");
+ break;
+ case 7:
+ DECODE_PRINTF("CMP\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ switch (mod) {
+ case 0:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc80_byte_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc80_byte_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc80_byte_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc80_byte_operation[rh]) (*destreg, imm);
+ if (rh != 7)
+ *destreg = destval;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+static u16(*opc81_word_operation[]) (u16 d, u16 s) = {
+ add_word, /*00 */
+ or_word, /*01 */
+ adc_word, /*02 */
+ sbb_word, /*03 */
+ and_word, /*04 */
+ sub_word, /*05 */
+ xor_word, /*06 */
+ cmp_word, /*07 */
+};
+
+static u32(*opc81_long_operation[]) (u32 d, u32 s) = {
+ add_long, /*00 */
+ or_long, /*01 */
+ adc_long, /*02 */
+ sbb_long, /*03 */
+ and_long, /*04 */
+ sub_long, /*05 */
+ xor_long, /*06 */
+ cmp_long, /*07 */
+};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x81
+****************************************************************************/
+static void
+x86emuOp_opc81_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ /*
+ * Weirdo special case instruction format. Part of the opcode
+ * held below in "RH". Doubly nested case would result, except
+ * that the decoded instruction
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ADD\t");
+ break;
+ case 1:
+ DECODE_PRINTF("OR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("ADC\t");
+ break;
+ case 3:
+ DECODE_PRINTF("SBB\t");
+ break;
+ case 4:
+ DECODE_PRINTF("AND\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SUB\t");
+ break;
+ case 6:
+ DECODE_PRINTF("XOR\t");
+ break;
+ case 7:
+ DECODE_PRINTF("CMP\t");
+ break;
+ }
+ }
+#endif
+ /*
+ * Know operation, decode the mod byte to find the addressing
+ * mode.
+ */
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc81_long_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval, imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc81_word_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc81_long_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval, imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc81_word_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc81_long_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval, imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc81_word_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 destval, imm;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ imm = fetch_long_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc81_long_operation[rh]) (*destreg, imm);
+ if (rh != 7)
+ *destreg = destval;
+ }
+ else {
+ u16 *destreg;
+ u16 destval, imm;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ imm = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc81_word_operation[rh]) (*destreg, imm);
+ if (rh != 7)
+ *destreg = destval;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+static u8(*opc82_byte_operation[]) (u8 s, u8 d) = {
+ add_byte, /*00 */
+ or_byte, /*01 *//*YYY UNUSED ???? */
+ adc_byte, /*02 */
+ sbb_byte, /*03 */
+ and_byte, /*04 *//*YYY UNUSED ???? */
+ sub_byte, /*05 */
+ xor_byte, /*06 *//*YYY UNUSED ???? */
+ cmp_byte, /*07 */
+};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x82
+****************************************************************************/
+static void
+x86emuOp_opc82_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg;
+ uint destoffset;
+ u8 imm;
+ u8 destval;
+
+ /*
+ * Weirdo special case instruction format. Part of the opcode
+ * held below in "RH". Doubly nested case would result, except
+ * that the decoded instruction Similar to opcode 81, except that
+ * the immediate byte is sign extended to a word length.
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ADD\t");
+ break;
+ case 1:
+ DECODE_PRINTF("OR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("ADC\t");
+ break;
+ case 3:
+ DECODE_PRINTF("SBB\t");
+ break;
+ case 4:
+ DECODE_PRINTF("AND\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SUB\t");
+ break;
+ case 6:
+ DECODE_PRINTF("XOR\t");
+ break;
+ case 7:
+ DECODE_PRINTF("CMP\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ switch (mod) {
+ case 0:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ destval = fetch_data_byte(destoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc82_byte_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ destval = fetch_data_byte(destoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc82_byte_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ destval = fetch_data_byte(destoffset);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc82_byte_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc82_byte_operation[rh]) (*destreg, imm);
+ if (rh != 7)
+ *destreg = destval;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+static u16(*opc83_word_operation[]) (u16 s, u16 d) = {
+ add_word, /*00 */
+ or_word, /*01 *//*YYY UNUSED ???? */
+ adc_word, /*02 */
+ sbb_word, /*03 */
+ and_word, /*04 *//*YYY UNUSED ???? */
+ sub_word, /*05 */
+ xor_word, /*06 *//*YYY UNUSED ???? */
+ cmp_word, /*07 */
+};
+
+static u32(*opc83_long_operation[]) (u32 s, u32 d) = {
+ add_long, /*00 */
+ or_long, /*01 *//*YYY UNUSED ???? */
+ adc_long, /*02 */
+ sbb_long, /*03 */
+ and_long, /*04 *//*YYY UNUSED ???? */
+ sub_long, /*05 */
+ xor_long, /*06 *//*YYY UNUSED ???? */
+ cmp_long, /*07 */
+};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x83
+****************************************************************************/
+static void
+x86emuOp_opc83_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ /*
+ * Weirdo special case instruction format. Part of the opcode
+ * held below in "RH". Doubly nested case would result, except
+ * that the decoded instruction Similar to opcode 81, except that
+ * the immediate byte is sign extended to a word length.
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ADD\t");
+ break;
+ case 1:
+ DECODE_PRINTF("OR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("ADC\t");
+ break;
+ case 3:
+ DECODE_PRINTF("SBB\t");
+ break;
+ case 4:
+ DECODE_PRINTF("AND\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SUB\t");
+ break;
+ case 6:
+ DECODE_PRINTF("XOR\t");
+ break;
+ case 7:
+ DECODE_PRINTF("CMP\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ destval = fetch_data_long(destoffset);
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc83_long_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval, imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ destval = fetch_data_word(destoffset);
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc83_word_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ destval = fetch_data_long(destoffset);
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc83_long_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval, imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ destval = fetch_data_word(destoffset);
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc83_word_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ destval = fetch_data_long(destoffset);
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc83_long_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval, imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ destval = fetch_data_word(destoffset);
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc83_word_operation[rh]) (destval, imm);
+ if (rh != 7)
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 destval, imm;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc83_long_operation[rh]) (*destreg, imm);
+ if (rh != 7)
+ *destreg = destval;
+ }
+ else {
+ u16 *destreg;
+ u16 destval, imm;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ imm = (s8) fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ destval = (*opc83_word_operation[rh]) (*destreg, imm);
+ if (rh != 7)
+ *destreg = destval;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x84
+****************************************************************************/
+static void
+x86emuOp_test_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+ u8 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("TEST\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_byte(destval, *srcreg);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_byte(destval, *srcreg);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_byte(destval, *srcreg);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_byte(*destreg, *srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x85
+****************************************************************************/
+static void
+x86emuOp_test_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("TEST\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_long(destval, *srcreg);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_word(destval, *srcreg);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_long(destval, *srcreg);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_word(destval, *srcreg);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_long(destval, *srcreg);
+ }
+ else {
+ u16 destval;
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_word(destval, *srcreg);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_long(*destreg, *srcreg);
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ test_word(*destreg, *srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x86
+****************************************************************************/
+static void
+x86emuOp_xchg_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+ u8 destval;
+ u8 tmp;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("XCHG\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_byte(destoffset);
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = *destreg;
+ *destreg = tmp;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x87
+****************************************************************************/
+static void
+x86emuOp_xchg_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("XCHG\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg;
+ u32 destval, tmp;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 *srcreg;
+ u16 destval, tmp;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg;
+ u32 destval, tmp;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 *srcreg;
+ u16 destval, tmp;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg;
+ u32 destval, tmp;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_long(destoffset);
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 *srcreg;
+ u16 destval, tmp;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ destval = fetch_data_word(destoffset);
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = destval;
+ destval = tmp;
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+ u32 tmp;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = *destreg;
+ *destreg = tmp;
+ }
+ else {
+ u16 *destreg, *srcreg;
+ u16 tmp;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ tmp = *srcreg;
+ *srcreg = *destreg;
+ *destreg = tmp;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x88
+****************************************************************************/
+static void
+x86emuOp_mov_byte_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, *srcreg);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, *srcreg);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, *srcreg);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x89
+****************************************************************************/
+static void
+x86emuOp_mov_word_RM_R(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u32 destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_long(destoffset, *srcreg);
+ }
+ else {
+ u16 *srcreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_word(destoffset, *srcreg);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_long(destoffset, *srcreg);
+ }
+ else {
+ u16 *srcreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_word(destoffset, *srcreg);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_long(destoffset, *srcreg);
+ }
+ else {
+ u16 *srcreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ store_data_word(destoffset, *srcreg);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8a
+****************************************************************************/
+static void
+x86emuOp_mov_byte_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg, *srcreg;
+ uint srcoffset;
+ u8 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 1:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 2:
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8b
+****************************************************************************/
+static void
+x86emuOp_mov_word_R_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ }
+ else {
+ u16 *destreg, *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8c
+****************************************************************************/
+static void
+x86emuOp_mov_word_RM_SR(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u16 *destreg, *srcreg;
+ uint destoffset;
+ u16 destval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = decode_rm_seg_register(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = *srcreg;
+ store_data_word(destoffset, destval);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = decode_rm_seg_register(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = *srcreg;
+ store_data_word(destoffset, destval);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ srcreg = decode_rm_seg_register(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = *srcreg;
+ store_data_word(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcreg = decode_rm_seg_register(rh);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8d
+****************************************************************************/
+static void
+x86emuOp_lea_word_R_M(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LEA\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ u32 *srcreg = DECODE_RM_LONG_REGISTER(rh);
+
+ DECODE_PRINTF(",");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u32) destoffset;
+ }
+ else {
+ u16 *srcreg = DECODE_RM_WORD_REGISTER(rh);
+
+ DECODE_PRINTF(",");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u16) destoffset;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ u32 *srcreg = DECODE_RM_LONG_REGISTER(rh);
+
+ DECODE_PRINTF(",");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u32) destoffset;
+ }
+ else {
+ u16 *srcreg = DECODE_RM_WORD_REGISTER(rh);
+
+ DECODE_PRINTF(",");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u16) destoffset;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_ADDR) {
+ u32 *srcreg = DECODE_RM_LONG_REGISTER(rh);
+
+ DECODE_PRINTF(",");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u32) destoffset;
+ }
+ else {
+ u16 *srcreg = DECODE_RM_WORD_REGISTER(rh);
+
+ DECODE_PRINTF(",");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *srcreg = (u16) destoffset;
+ }
+ break;
+ case 3: /* register to register */
+ /* undefined. Do nothing. */
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8e
+****************************************************************************/
+static void
+x86emuOp_mov_word_SR_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u16 *destreg, *srcreg;
+ uint srcoffset;
+ u16 srcval;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = decode_rm_seg_register(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 1:
+ destreg = decode_rm_seg_register(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 2:
+ destreg = decode_rm_seg_register(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 3: /* register to register */
+ destreg = decode_rm_seg_register(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ break;
+ }
+ /*
+ * Clean up, and reset all the R_xSP pointers to the correct
+ * locations. This is about 3x too much overhead (doing all the
+ * segreg ptrs when only one is needed, but this instruction
+ * *cannot* be that common, and this isn't too much work anyway.
+ */
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x8f
+****************************************************************************/
+static void
+x86emuOp_pop_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("POP\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ if (rh != 0) {
+ DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n");
+ HALT_SYS();
+ }
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = pop_long();
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = pop_word();
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = pop_long();
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = pop_word();
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = pop_long();
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ destval = pop_word();
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = pop_long();
+ }
+ else {
+ u16 *destreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = pop_word();
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x90
+****************************************************************************/
+static void
+x86emuOp_nop(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("NOP\n");
+ TRACE_AND_STEP();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x91
+****************************************************************************/
+static void
+x86emuOp_xchg_word_AX_CX(u8 X86EMU_UNUSED(op1))
+{
+ u32 tmp;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("XCHG\tEAX,ECX\n");
+ }
+ else {
+ DECODE_PRINTF("XCHG\tAX,CX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ tmp = M.x86.R_EAX;
+ M.x86.R_EAX = M.x86.R_ECX;
+ M.x86.R_ECX = tmp;
+ }
+ else {
+ tmp = M.x86.R_AX;
+ M.x86.R_AX = M.x86.R_CX;
+ M.x86.R_CX = (u16) tmp;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x92
+****************************************************************************/
+static void
+x86emuOp_xchg_word_AX_DX(u8 X86EMU_UNUSED(op1))
+{
+ u32 tmp;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("XCHG\tEAX,EDX\n");
+ }
+ else {
+ DECODE_PRINTF("XCHG\tAX,DX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ tmp = M.x86.R_EAX;
+ M.x86.R_EAX = M.x86.R_EDX;
+ M.x86.R_EDX = tmp;
+ }
+ else {
+ tmp = M.x86.R_AX;
+ M.x86.R_AX = M.x86.R_DX;
+ M.x86.R_DX = (u16) tmp;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x93
+****************************************************************************/
+static void
+x86emuOp_xchg_word_AX_BX(u8 X86EMU_UNUSED(op1))
+{
+ u32 tmp;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("XCHG\tEAX,EBX\n");
+ }
+ else {
+ DECODE_PRINTF("XCHG\tAX,BX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ tmp = M.x86.R_EAX;
+ M.x86.R_EAX = M.x86.R_EBX;
+ M.x86.R_EBX = tmp;
+ }
+ else {
+ tmp = M.x86.R_AX;
+ M.x86.R_AX = M.x86.R_BX;
+ M.x86.R_BX = (u16) tmp;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x94
+****************************************************************************/
+static void
+x86emuOp_xchg_word_AX_SP(u8 X86EMU_UNUSED(op1))
+{
+ u32 tmp;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("XCHG\tEAX,ESP\n");
+ }
+ else {
+ DECODE_PRINTF("XCHG\tAX,SP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ tmp = M.x86.R_EAX;
+ M.x86.R_EAX = M.x86.R_ESP;
+ M.x86.R_ESP = tmp;
+ }
+ else {
+ tmp = M.x86.R_AX;
+ M.x86.R_AX = M.x86.R_SP;
+ M.x86.R_SP = (u16) tmp;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x95
+****************************************************************************/
+static void
+x86emuOp_xchg_word_AX_BP(u8 X86EMU_UNUSED(op1))
+{
+ u32 tmp;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("XCHG\tEAX,EBP\n");
+ }
+ else {
+ DECODE_PRINTF("XCHG\tAX,BP\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ tmp = M.x86.R_EAX;
+ M.x86.R_EAX = M.x86.R_EBP;
+ M.x86.R_EBP = tmp;
+ }
+ else {
+ tmp = M.x86.R_AX;
+ M.x86.R_AX = M.x86.R_BP;
+ M.x86.R_BP = (u16) tmp;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x96
+****************************************************************************/
+static void
+x86emuOp_xchg_word_AX_SI(u8 X86EMU_UNUSED(op1))
+{
+ u32 tmp;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("XCHG\tEAX,ESI\n");
+ }
+ else {
+ DECODE_PRINTF("XCHG\tAX,SI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ tmp = M.x86.R_EAX;
+ M.x86.R_EAX = M.x86.R_ESI;
+ M.x86.R_ESI = tmp;
+ }
+ else {
+ tmp = M.x86.R_AX;
+ M.x86.R_AX = M.x86.R_SI;
+ M.x86.R_SI = (u16) tmp;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x97
+****************************************************************************/
+static void
+x86emuOp_xchg_word_AX_DI(u8 X86EMU_UNUSED(op1))
+{
+ u32 tmp;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("XCHG\tEAX,EDI\n");
+ }
+ else {
+ DECODE_PRINTF("XCHG\tAX,DI\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ tmp = M.x86.R_EAX;
+ M.x86.R_EAX = M.x86.R_EDI;
+ M.x86.R_EDI = tmp;
+ }
+ else {
+ tmp = M.x86.R_AX;
+ M.x86.R_AX = M.x86.R_DI;
+ M.x86.R_DI = (u16) tmp;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x98
+****************************************************************************/
+static void
+x86emuOp_cbw(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("CWDE\n");
+ }
+ else {
+ DECODE_PRINTF("CBW\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ if (M.x86.R_AX & 0x8000) {
+ M.x86.R_EAX |= 0xffff0000;
+ }
+ else {
+ M.x86.R_EAX &= 0x0000ffff;
+ }
+ }
+ else {
+ if (M.x86.R_AL & 0x80) {
+ M.x86.R_AH = 0xff;
+ }
+ else {
+ M.x86.R_AH = 0x0;
+ }
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x99
+****************************************************************************/
+static void
+x86emuOp_cwd(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("CDQ\n");
+ }
+ else {
+ DECODE_PRINTF("CWD\n");
+ }
+ DECODE_PRINTF("CWD\n");
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ if (M.x86.R_EAX & 0x80000000) {
+ M.x86.R_EDX = 0xffffffff;
+ }
+ else {
+ M.x86.R_EDX = 0x0;
+ }
+ }
+ else {
+ if (M.x86.R_AX & 0x8000) {
+ M.x86.R_DX = 0xffff;
+ }
+ else {
+ M.x86.R_DX = 0x0;
+ }
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9a
+****************************************************************************/
+static void
+x86emuOp_call_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 farseg, faroff;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("CALL\t");
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ faroff = fetch_long_imm();
+ farseg = fetch_word_imm();
+ }
+ else {
+ faroff = fetch_word_imm();
+ farseg = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%04x:", farseg);
+ DECODE_PRINTF2("%04x\n", faroff);
+ CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, farseg, faroff, "FAR ");
+
+ /* XXX
+ *
+ * Hooked interrupt vectors calling into our "BIOS" will cause
+ * problems unless all intersegment stuff is checked for BIOS
+ * access. Check needed here. For moment, let it alone.
+ */
+ TRACE_AND_STEP();
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = farseg;
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_EIP);
+ }
+ else {
+ push_word(M.x86.R_IP);
+ }
+ M.x86.R_EIP = faroff & 0xffff;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9b
+****************************************************************************/
+static void
+x86emuOp_wait(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("WAIT");
+ TRACE_AND_STEP();
+ /* NADA. */
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9c
+****************************************************************************/
+static void
+x86emuOp_pushf_word(u8 X86EMU_UNUSED(op1))
+{
+ u32 flags;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("PUSHFD\n");
+ }
+ else {
+ DECODE_PRINTF("PUSHF\n");
+ }
+ TRACE_AND_STEP();
+
+ /* clear out *all* bits not representing flags, and turn on real bits */
+ flags = (M.x86.R_EFLG & F_MSK) | F_ALWAYS_ON;
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(flags);
+ }
+ else {
+ push_word((u16) flags);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9d
+****************************************************************************/
+static void
+x86emuOp_popf_word(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("POPFD\n");
+ }
+ else {
+ DECODE_PRINTF("POPF\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EFLG = pop_long();
+ }
+ else {
+ M.x86.R_FLG = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9e
+****************************************************************************/
+static void
+x86emuOp_sahf(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("SAHF\n");
+ TRACE_AND_STEP();
+ /* clear the lower bits of the flag register */
+ M.x86.R_FLG &= 0xffffff00;
+ /* or in the AH register into the flags register */
+ M.x86.R_FLG |= M.x86.R_AH;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x9f
+****************************************************************************/
+static void
+x86emuOp_lahf(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("LAHF\n");
+ TRACE_AND_STEP();
+ M.x86.R_AH = (u8) (M.x86.R_FLG & 0xff);
+ /*undocumented TC++ behavior??? Nope. It's documented, but
+ you have too look real hard to notice it. */
+ M.x86.R_AH |= 0x2;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa0
+****************************************************************************/
+static void
+x86emuOp_mov_AL_M_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u16 offset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tAL,");
+ offset = fetch_word_imm();
+ DECODE_PRINTF2("[%04x]\n", offset);
+ TRACE_AND_STEP();
+ M.x86.R_AL = fetch_data_byte(offset);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa1
+****************************************************************************/
+static void
+x86emuOp_mov_AX_M_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u16 offset;
+
+ START_OF_INSTR();
+ offset = fetch_word_imm();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF2("MOV\tEAX,[%04x]\n", offset);
+ }
+ else {
+ DECODE_PRINTF2("MOV\tAX,[%04x]\n", offset);
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = fetch_data_long(offset);
+ }
+ else {
+ M.x86.R_AX = fetch_data_word(offset);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa2
+****************************************************************************/
+static void
+x86emuOp_mov_M_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u16 offset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ offset = fetch_word_imm();
+ DECODE_PRINTF2("[%04x],AL\n", offset);
+ TRACE_AND_STEP();
+ store_data_byte(offset, M.x86.R_AL);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa3
+****************************************************************************/
+static void
+x86emuOp_mov_M_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u16 offset;
+
+ START_OF_INSTR();
+ offset = fetch_word_imm();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF2("MOV\t[%04x],EAX\n", offset);
+ }
+ else {
+ DECODE_PRINTF2("MOV\t[%04x],AX\n", offset);
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ store_data_long(offset, M.x86.R_EAX);
+ }
+ else {
+ store_data_word(offset, M.x86.R_AX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa4
+****************************************************************************/
+static void
+x86emuOp_movs_byte(u8 X86EMU_UNUSED(op1))
+{
+ u8 val;
+ u32 count;
+ int inc;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOVS\tBYTE\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -1;
+ else
+ inc = 1;
+ TRACE_AND_STEP();
+ count = 1;
+ if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+ /* dont care whether REPE or REPNE */
+ /* move them until CX is ZERO. */
+ count = M.x86.R_CX;
+ M.x86.R_CX = 0;
+ M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+ }
+ while (count--) {
+ val = fetch_data_byte(M.x86.R_SI);
+ store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, val);
+ M.x86.R_SI += inc;
+ M.x86.R_DI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa5
+****************************************************************************/
+static void
+x86emuOp_movs_word(u8 X86EMU_UNUSED(op1))
+{
+ u32 val;
+ int inc;
+ u32 count;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOVS\tDWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -4;
+ else
+ inc = 4;
+ }
+ else {
+ DECODE_PRINTF("MOVS\tWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -2;
+ else
+ inc = 2;
+ }
+ TRACE_AND_STEP();
+ count = 1;
+ if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+ /* dont care whether REPE or REPNE */
+ /* move them until CX is ZERO. */
+ count = M.x86.R_CX;
+ M.x86.R_CX = 0;
+ M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+ }
+ while (count--) {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ val = fetch_data_long(M.x86.R_SI);
+ store_data_long_abs(M.x86.R_ES, M.x86.R_DI, val);
+ }
+ else {
+ val = fetch_data_word(M.x86.R_SI);
+ store_data_word_abs(M.x86.R_ES, M.x86.R_DI, (u16) val);
+ }
+ M.x86.R_SI += inc;
+ M.x86.R_DI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa6
+****************************************************************************/
+static void
+x86emuOp_cmps_byte(u8 X86EMU_UNUSED(op1))
+{
+ s8 val1, val2;
+ int inc;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("CMPS\tBYTE\n");
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -1;
+ else
+ inc = 1;
+
+ if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+ /* REPE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ val1 = fetch_data_byte(M.x86.R_SI);
+ val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_byte(val1, val2);
+ M.x86.R_CX -= 1;
+ M.x86.R_SI += inc;
+ M.x86.R_DI += inc;
+ if (ACCESS_FLAG(F_ZF) == 0)
+ break;
+ }
+ M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+ }
+ else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+ /* REPNE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ val1 = fetch_data_byte(M.x86.R_SI);
+ val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_byte(val1, val2);
+ M.x86.R_CX -= 1;
+ M.x86.R_SI += inc;
+ M.x86.R_DI += inc;
+ if (ACCESS_FLAG(F_ZF))
+ break; /* zero flag set means equal */
+ }
+ M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+ }
+ else {
+ val1 = fetch_data_byte(M.x86.R_SI);
+ val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_byte(val1, val2);
+ M.x86.R_SI += inc;
+ M.x86.R_DI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa7
+****************************************************************************/
+static void
+x86emuOp_cmps_word(u8 X86EMU_UNUSED(op1))
+{
+ u32 val1, val2;
+ int inc;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("CMPS\tDWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -4;
+ else
+ inc = 4;
+ }
+ else {
+ DECODE_PRINTF("CMPS\tWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -2;
+ else
+ inc = 2;
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+ /* REPE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ val1 = fetch_data_long(M.x86.R_SI);
+ val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_long(val1, val2);
+ }
+ else {
+ val1 = fetch_data_word(M.x86.R_SI);
+ val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_word((u16) val1, (u16) val2);
+ }
+ M.x86.R_CX -= 1;
+ M.x86.R_SI += inc;
+ M.x86.R_DI += inc;
+ if (ACCESS_FLAG(F_ZF) == 0)
+ break;
+ }
+ M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+ }
+ else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+ /* REPNE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ val1 = fetch_data_long(M.x86.R_SI);
+ val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_long(val1, val2);
+ }
+ else {
+ val1 = fetch_data_word(M.x86.R_SI);
+ val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_word((u16) val1, (u16) val2);
+ }
+ M.x86.R_CX -= 1;
+ M.x86.R_SI += inc;
+ M.x86.R_DI += inc;
+ if (ACCESS_FLAG(F_ZF))
+ break; /* zero flag set means equal */
+ }
+ M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+ }
+ else {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ val1 = fetch_data_long(M.x86.R_SI);
+ val2 = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_long(val1, val2);
+ }
+ else {
+ val1 = fetch_data_word(M.x86.R_SI);
+ val2 = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_word((u16) val1, (u16) val2);
+ }
+ M.x86.R_SI += inc;
+ M.x86.R_DI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa8
+****************************************************************************/
+static void
+x86emuOp_test_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("TEST\tAL,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%04x\n", imm);
+ TRACE_AND_STEP();
+ test_byte(M.x86.R_AL, (u8) imm);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xa9
+****************************************************************************/
+static void
+x86emuOp_test_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("TEST\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("TEST\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ test_long(M.x86.R_EAX, srcval);
+ }
+ else {
+ test_word(M.x86.R_AX, (u16) srcval);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xaa
+****************************************************************************/
+static void
+x86emuOp_stos_byte(u8 X86EMU_UNUSED(op1))
+{
+ int inc;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("STOS\tBYTE\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -1;
+ else
+ inc = 1;
+ TRACE_AND_STEP();
+ if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+ /* dont care whether REPE or REPNE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL);
+ M.x86.R_CX -= 1;
+ M.x86.R_DI += inc;
+ }
+ M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+ }
+ else {
+ store_data_byte_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AL);
+ M.x86.R_DI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xab
+****************************************************************************/
+static void
+x86emuOp_stos_word(u8 X86EMU_UNUSED(op1))
+{
+ int inc;
+ u32 count;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("STOS\tDWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -4;
+ else
+ inc = 4;
+ }
+ else {
+ DECODE_PRINTF("STOS\tWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -2;
+ else
+ inc = 2;
+ }
+ TRACE_AND_STEP();
+ count = 1;
+ if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+ /* dont care whether REPE or REPNE */
+ /* move them until CX is ZERO. */
+ count = M.x86.R_CX;
+ M.x86.R_CX = 0;
+ M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+ }
+ while (count--) {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ store_data_long_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_EAX);
+ }
+ else {
+ store_data_word_abs(M.x86.R_ES, M.x86.R_DI, M.x86.R_AX);
+ }
+ M.x86.R_DI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xac
+****************************************************************************/
+static void
+x86emuOp_lods_byte(u8 X86EMU_UNUSED(op1))
+{
+ int inc;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LODS\tBYTE\n");
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -1;
+ else
+ inc = 1;
+ if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+ /* dont care whether REPE or REPNE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ M.x86.R_AL = fetch_data_byte(M.x86.R_SI);
+ M.x86.R_CX -= 1;
+ M.x86.R_SI += inc;
+ }
+ M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+ }
+ else {
+ M.x86.R_AL = fetch_data_byte(M.x86.R_SI);
+ M.x86.R_SI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xad
+****************************************************************************/
+static void
+x86emuOp_lods_word(u8 X86EMU_UNUSED(op1))
+{
+ int inc;
+ u32 count;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("LODS\tDWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -4;
+ else
+ inc = 4;
+ }
+ else {
+ DECODE_PRINTF("LODS\tWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -2;
+ else
+ inc = 2;
+ }
+ TRACE_AND_STEP();
+ count = 1;
+ if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+ /* dont care whether REPE or REPNE */
+ /* move them until CX is ZERO. */
+ count = M.x86.R_CX;
+ M.x86.R_CX = 0;
+ M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+ }
+ while (count--) {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = fetch_data_long(M.x86.R_SI);
+ }
+ else {
+ M.x86.R_AX = fetch_data_word(M.x86.R_SI);
+ }
+ M.x86.R_SI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xae
+****************************************************************************/
+static void
+x86emuOp_scas_byte(u8 X86EMU_UNUSED(op1))
+{
+ s8 val2;
+ int inc;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SCAS\tBYTE\n");
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -1;
+ else
+ inc = 1;
+ if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+ /* REPE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_byte(M.x86.R_AL, val2);
+ M.x86.R_CX -= 1;
+ M.x86.R_DI += inc;
+ if (ACCESS_FLAG(F_ZF) == 0)
+ break;
+ }
+ M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+ }
+ else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+ /* REPNE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_byte(M.x86.R_AL, val2);
+ M.x86.R_CX -= 1;
+ M.x86.R_DI += inc;
+ if (ACCESS_FLAG(F_ZF))
+ break; /* zero flag set means equal */
+ }
+ M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+ }
+ else {
+ val2 = fetch_data_byte_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_byte(M.x86.R_AL, val2);
+ M.x86.R_DI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xaf
+****************************************************************************/
+static void
+x86emuOp_scas_word(u8 X86EMU_UNUSED(op1))
+{
+ int inc;
+ u32 val;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("SCAS\tDWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -4;
+ else
+ inc = 4;
+ }
+ else {
+ DECODE_PRINTF("SCAS\tWORD\n");
+ if (ACCESS_FLAG(F_DF)) /* down */
+ inc = -2;
+ else
+ inc = 2;
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_REPE) {
+ /* REPE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_long(M.x86.R_EAX, val);
+ }
+ else {
+ val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_word(M.x86.R_AX, (u16) val);
+ }
+ M.x86.R_CX -= 1;
+ M.x86.R_DI += inc;
+ if (ACCESS_FLAG(F_ZF) == 0)
+ break;
+ }
+ M.x86.mode &= ~SYSMODE_PREFIX_REPE;
+ }
+ else if (M.x86.mode & SYSMODE_PREFIX_REPNE) {
+ /* REPNE */
+ /* move them until CX is ZERO. */
+ while (M.x86.R_CX != 0) {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_long(M.x86.R_EAX, val);
+ }
+ else {
+ val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_word(M.x86.R_AX, (u16) val);
+ }
+ M.x86.R_CX -= 1;
+ M.x86.R_DI += inc;
+ if (ACCESS_FLAG(F_ZF))
+ break; /* zero flag set means equal */
+ }
+ M.x86.mode &= ~SYSMODE_PREFIX_REPNE;
+ }
+ else {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ val = fetch_data_long_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_long(M.x86.R_EAX, val);
+ }
+ else {
+ val = fetch_data_word_abs(M.x86.R_ES, M.x86.R_DI);
+ cmp_word(M.x86.R_AX, (u16) val);
+ }
+ M.x86.R_DI += inc;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb0
+****************************************************************************/
+static void
+x86emuOp_mov_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tAL,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ M.x86.R_AL = imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb1
+****************************************************************************/
+static void
+x86emuOp_mov_byte_CL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tCL,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ M.x86.R_CL = imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb2
+****************************************************************************/
+static void
+x86emuOp_mov_byte_DL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tDL,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ M.x86.R_DL = imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb3
+****************************************************************************/
+static void
+x86emuOp_mov_byte_BL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tBL,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ M.x86.R_BL = imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb4
+****************************************************************************/
+static void
+x86emuOp_mov_byte_AH_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tAH,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ M.x86.R_AH = imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb5
+****************************************************************************/
+static void
+x86emuOp_mov_byte_CH_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tCH,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ M.x86.R_CH = imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb6
+****************************************************************************/
+static void
+x86emuOp_mov_byte_DH_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tDH,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ M.x86.R_DH = imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb7
+****************************************************************************/
+static void
+x86emuOp_mov_byte_BH_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\tBH,");
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ TRACE_AND_STEP();
+ M.x86.R_BH = imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb8
+****************************************************************************/
+static void
+x86emuOp_mov_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOV\tEAX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("MOV\tAX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = srcval;
+ }
+ else {
+ M.x86.R_AX = (u16) srcval;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xb9
+****************************************************************************/
+static void
+x86emuOp_mov_word_CX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOV\tECX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("MOV\tCX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ECX = srcval;
+ }
+ else {
+ M.x86.R_CX = (u16) srcval;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xba
+****************************************************************************/
+static void
+x86emuOp_mov_word_DX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOV\tEDX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("MOV\tDX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDX = srcval;
+ }
+ else {
+ M.x86.R_DX = (u16) srcval;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbb
+****************************************************************************/
+static void
+x86emuOp_mov_word_BX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOV\tEBX,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("MOV\tBX,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBX = srcval;
+ }
+ else {
+ M.x86.R_BX = (u16) srcval;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbc
+****************************************************************************/
+static void
+x86emuOp_mov_word_SP_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOV\tESP,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("MOV\tSP,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ESP = srcval;
+ }
+ else {
+ M.x86.R_SP = (u16) srcval;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbd
+****************************************************************************/
+static void
+x86emuOp_mov_word_BP_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOV\tEBP,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("MOV\tBP,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBP = srcval;
+ }
+ else {
+ M.x86.R_BP = (u16) srcval;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbe
+****************************************************************************/
+static void
+x86emuOp_mov_word_SI_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOV\tESI,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("MOV\tSI,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ESI = srcval;
+ }
+ else {
+ M.x86.R_SI = (u16) srcval;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xbf
+****************************************************************************/
+static void
+x86emuOp_mov_word_DI_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 srcval;
+
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("MOV\tEDI,");
+ srcval = fetch_long_imm();
+ }
+ else {
+ DECODE_PRINTF("MOV\tDI,");
+ srcval = fetch_word_imm();
+ }
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EDI = srcval;
+ }
+ else {
+ M.x86.R_DI = (u16) srcval;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/* used by opcodes c0, d0, and d2. */
+static u8(*opcD0_byte_operation[]) (u8 d, u8 s) = {
+ rol_byte, ror_byte, rcl_byte, rcr_byte, shl_byte, shr_byte, shl_byte, /* sal_byte === shl_byte by definition */
+sar_byte,};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc0
+****************************************************************************/
+static void
+x86emuOp_opcC0_byte_RM_MEM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg;
+ uint destoffset;
+ u8 destval;
+ u8 amt;
+
+ /*
+ * Yet another weirdo special case instruction format. Part of
+ * the opcode held below in "RH". Doubly nested case would
+ * result, except that the decoded instruction
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ROL\t");
+ break;
+ case 1:
+ DECODE_PRINTF("ROR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("RCL\t");
+ break;
+ case 3:
+ DECODE_PRINTF("RCR\t");
+ break;
+ case 4:
+ DECODE_PRINTF("SHL\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SHR\t");
+ break;
+ case 6:
+ DECODE_PRINTF("SAL\t");
+ break;
+ case 7:
+ DECODE_PRINTF("SAR\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ switch (mod) {
+ case 0:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, amt);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, amt);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, amt);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (*destreg, amt);
+ *destreg = destval;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/* used by opcodes c1, d1, and d3. */
+static u16(*opcD1_word_operation[]) (u16 s, u8 d) = {
+ rol_word, ror_word, rcl_word, rcr_word, shl_word, shr_word, shl_word, /* sal_byte === shl_byte by definition */
+sar_word,};
+
+/* used by opcodes c1, d1, and d3. */
+static u32(*opcD1_long_operation[]) (u32 s, u8 d) = {
+ rol_long, ror_long, rcl_long, rcr_long, shl_long, shr_long, shl_long, /* sal_byte === shl_byte by definition */
+sar_long,};
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc1
+****************************************************************************/
+static void
+x86emuOp_opcC1_word_RM_MEM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+ u8 amt;
+
+ /*
+ * Yet another weirdo special case instruction format. Part of
+ * the opcode held below in "RH". Doubly nested case would
+ * result, except that the decoded instruction
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ROL\t");
+ break;
+ case 1:
+ DECODE_PRINTF("ROR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("RCL\t");
+ break;
+ case 3:
+ DECODE_PRINTF("RCR\t");
+ break;
+ case 4:
+ DECODE_PRINTF("SHL\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SHR\t");
+ break;
+ case 6:
+ DECODE_PRINTF("SAL\t");
+ break;
+ case 7:
+ DECODE_PRINTF("SAR\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, amt);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, amt);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, amt);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, amt);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, amt);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, amt);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ TRACE_AND_STEP();
+ *destreg = (*opcD1_long_operation[rh]) (*destreg, amt);
+ }
+ else {
+ u16 *destreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ amt = fetch_byte_imm();
+ DECODE_PRINTF2(",%x\n", amt);
+ TRACE_AND_STEP();
+ *destreg = (*opcD1_word_operation[rh]) (*destreg, amt);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc2
+****************************************************************************/
+static void
+x86emuOp_ret_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u16 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("RET\t");
+ imm = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ RETURN_TRACE("RET", M.x86.saved_cs, M.x86.saved_ip);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EIP = pop_long();
+ } else {
+ M.x86.R_IP = pop_word();
+ }
+ M.x86.R_SP += imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc3
+****************************************************************************/
+static void
+x86emuOp_ret_near(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("RET\n");
+ RETURN_TRACE("RET", M.x86.saved_cs, M.x86.saved_ip);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EIP = pop_long();
+ } else {
+ M.x86.R_IP = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc4
+****************************************************************************/
+static void
+x86emuOp_les_R_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rh, rl;
+ u16 *dstreg;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LES\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_ES = fetch_data_word(srcoffset + 2);
+ break;
+ case 1:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_ES = fetch_data_word(srcoffset + 2);
+ break;
+ case 2:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_ES = fetch_data_word(srcoffset + 2);
+ break;
+ case 3: /* register to register */
+ /* UNDEFINED! */
+ TRACE_AND_STEP();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc5
+****************************************************************************/
+static void
+x86emuOp_lds_R_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rh, rl;
+ u16 *dstreg;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LDS\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_DS = fetch_data_word(srcoffset + 2);
+ break;
+ case 1:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_DS = fetch_data_word(srcoffset + 2);
+ break;
+ case 2:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_DS = fetch_data_word(srcoffset + 2);
+ break;
+ case 3: /* register to register */
+ /* UNDEFINED! */
+ TRACE_AND_STEP();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc6
+****************************************************************************/
+static void
+x86emuOp_mov_byte_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg;
+ uint destoffset;
+ u8 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ if (rh != 0) {
+ DECODE_PRINTF("ILLEGAL DECODE OF OPCODE c6\n");
+ HALT_SYS();
+ }
+ switch (mod) {
+ case 0:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%2x\n", imm);
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, imm);
+ break;
+ case 1:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%2x\n", imm);
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, imm);
+ break;
+ case 2:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%2x\n", imm);
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, imm);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ imm = fetch_byte_imm();
+ DECODE_PRINTF2(",%2x\n", imm);
+ TRACE_AND_STEP();
+ *destreg = imm;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc7
+****************************************************************************/
+static void
+x86emuOp_mov_word_RM_IMM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOV\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ if (rh != 0) {
+ DECODE_PRINTF("ILLEGAL DECODE OF OPCODE 8F\n");
+ HALT_SYS();
+ }
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ store_data_long(destoffset, imm);
+ }
+ else {
+ u16 imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ store_data_word(destoffset, imm);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ store_data_long(destoffset, imm);
+ }
+ else {
+ u16 imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ store_data_word(destoffset, imm);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 imm;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ store_data_long(destoffset, imm);
+ }
+ else {
+ u16 imm;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ store_data_word(destoffset, imm);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 imm;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ imm = fetch_long_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ *destreg = imm;
+ }
+ else {
+ u16 *destreg;
+ u16 imm;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ imm = fetch_word_imm();
+ DECODE_PRINTF2(",%x\n", imm);
+ TRACE_AND_STEP();
+ *destreg = imm;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc8
+****************************************************************************/
+static void
+x86emuOp_enter(u8 X86EMU_UNUSED(op1))
+{
+ u16 local, frame_pointer;
+ u8 nesting;
+ int i;
+
+ START_OF_INSTR();
+ local = fetch_word_imm();
+ nesting = fetch_byte_imm();
+ DECODE_PRINTF2("ENTER %x\n", local);
+ DECODE_PRINTF2(",%x\n", nesting);
+ TRACE_AND_STEP();
+ push_word(M.x86.R_BP);
+ frame_pointer = M.x86.R_SP;
+ if (nesting > 0) {
+ for (i = 1; i < nesting; i++) {
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_BP -= 4;
+ push_long(fetch_data_long_abs(M.x86.R_SS, M.x86.R_BP));
+ } else {
+ M.x86.R_BP -= 2;
+ push_word(fetch_data_word_abs(M.x86.R_SS, M.x86.R_BP));
+ }
+ }
+ push_word(frame_pointer);
+ }
+ M.x86.R_BP = frame_pointer;
+ M.x86.R_SP = (u16) (M.x86.R_SP - local);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xc9
+****************************************************************************/
+static void
+x86emuOp_leave(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("LEAVE\n");
+ TRACE_AND_STEP();
+ M.x86.R_SP = M.x86.R_BP;
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EBP = pop_long();
+ } else {
+ M.x86.R_BP = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xca
+****************************************************************************/
+static void
+x86emuOp_ret_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u16 imm;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("RETF\t");
+ imm = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", imm);
+ RETURN_TRACE("RETF", M.x86.saved_cs, M.x86.saved_ip);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EIP = pop_long();
+ M.x86.R_CS = pop_long() & 0xffff;
+ } else {
+ M.x86.R_IP = pop_word();
+ M.x86.R_CS = pop_word();
+ }
+ M.x86.R_SP += imm;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcb
+****************************************************************************/
+static void
+x86emuOp_ret_far(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("RETF\n");
+ RETURN_TRACE("RETF", M.x86.saved_cs, M.x86.saved_ip);
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EIP = pop_long();
+ M.x86.R_CS = pop_long() & 0xffff;
+ } else {
+ M.x86.R_IP = pop_word();
+ M.x86.R_CS = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcc
+****************************************************************************/
+static void
+x86emuOp_int3(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("INT 3\n");
+ TRACE_AND_STEP();
+ if (_X86EMU_intrTab[3]) {
+ (*_X86EMU_intrTab[3]) (3);
+ }
+ else {
+ push_word((u16) M.x86.R_FLG);
+ CLEAR_FLAG(F_IF);
+ CLEAR_FLAG(F_TF);
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = mem_access_word(3 * 4 + 2);
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = mem_access_word(3 * 4);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcd
+****************************************************************************/
+static void
+x86emuOp_int_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 intnum;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("INT\t");
+ intnum = fetch_byte_imm();
+ DECODE_PRINTF2("%x\n", intnum);
+ TRACE_AND_STEP();
+ if (_X86EMU_intrTab[intnum]) {
+ (*_X86EMU_intrTab[intnum]) (intnum);
+ }
+ else {
+ push_word((u16) M.x86.R_FLG);
+ CLEAR_FLAG(F_IF);
+ CLEAR_FLAG(F_TF);
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = mem_access_word(intnum * 4 + 2);
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = mem_access_word(intnum * 4);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xce
+****************************************************************************/
+static void
+x86emuOp_into(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("INTO\n");
+ TRACE_AND_STEP();
+ if (ACCESS_FLAG(F_OF)) {
+ if (_X86EMU_intrTab[4]) {
+ (*_X86EMU_intrTab[4]) (4);
+ }
+ else {
+ push_word((u16) M.x86.R_FLG);
+ CLEAR_FLAG(F_IF);
+ CLEAR_FLAG(F_TF);
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = mem_access_word(4 * 4 + 2);
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = mem_access_word(4 * 4);
+ }
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xcf
+****************************************************************************/
+static void
+x86emuOp_iret(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("IRET\n");
+
+ TRACE_AND_STEP();
+
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EIP = pop_long();
+ M.x86.R_CS = pop_long() & 0xffff;
+ M.x86.R_EFLG = (pop_long() & 0x257FD5) | (M.x86.R_EFLG & 0x1A0000);
+ } else {
+ M.x86.R_IP = pop_word();
+ M.x86.R_CS = pop_word();
+ M.x86.R_FLG = pop_word();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd0
+****************************************************************************/
+static void
+x86emuOp_opcD0_byte_RM_1(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg;
+ uint destoffset;
+ u8 destval;
+
+ /*
+ * Yet another weirdo special case instruction format. Part of
+ * the opcode held below in "RH". Doubly nested case would
+ * result, except that the decoded instruction
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ROL\t");
+ break;
+ case 1:
+ DECODE_PRINTF("ROR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("RCL\t");
+ break;
+ case 3:
+ DECODE_PRINTF("RCR\t");
+ break;
+ case 4:
+ DECODE_PRINTF("SHL\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SHR\t");
+ break;
+ case 6:
+ DECODE_PRINTF("SAL\t");
+ break;
+ case 7:
+ DECODE_PRINTF("SAR\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ switch (mod) {
+ case 0:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, 1);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, 1);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, 1);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",1\n");
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (*destreg, 1);
+ *destreg = destval;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd1
+****************************************************************************/
+static void
+x86emuOp_opcD1_word_RM_1(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ /*
+ * Yet another weirdo special case instruction format. Part of
+ * the opcode held below in "RH". Doubly nested case would
+ * result, except that the decoded instruction
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ROL\t");
+ break;
+ case 1:
+ DECODE_PRINTF("ROR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("RCL\t");
+ break;
+ case 3:
+ DECODE_PRINTF("RCR\t");
+ break;
+ case 4:
+ DECODE_PRINTF("SHL\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SHR\t");
+ break;
+ case 6:
+ DECODE_PRINTF("SAL\t");
+ break;
+ case 7:
+ DECODE_PRINTF("SAR\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, 1);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, 1);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, 1);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, 1);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, 1);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",1\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, 1);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *destreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",1\n");
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (*destreg, 1);
+ *destreg = destval;
+ }
+ else {
+ u16 destval;
+ u16 *destreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",1\n");
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (*destreg, 1);
+ *destreg = destval;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd2
+****************************************************************************/
+static void
+x86emuOp_opcD2_byte_RM_CL(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg;
+ uint destoffset;
+ u8 destval;
+ u8 amt;
+
+ /*
+ * Yet another weirdo special case instruction format. Part of
+ * the opcode held below in "RH". Doubly nested case would
+ * result, except that the decoded instruction
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ROL\t");
+ break;
+ case 1:
+ DECODE_PRINTF("ROR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("RCL\t");
+ break;
+ case 3:
+ DECODE_PRINTF("RCR\t");
+ break;
+ case 4:
+ DECODE_PRINTF("SHL\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SHR\t");
+ break;
+ case 6:
+ DECODE_PRINTF("SAL\t");
+ break;
+ case 7:
+ DECODE_PRINTF("SAR\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ amt = M.x86.R_CL;
+ switch (mod) {
+ case 0:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, amt);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, amt);
+ store_data_byte(destoffset, destval);
+ break;
+ case 2:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (destval, amt);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = (*opcD0_byte_operation[rh]) (*destreg, amt);
+ *destreg = destval;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd3
+****************************************************************************/
+static void
+x86emuOp_opcD3_word_RM_CL(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+ u8 amt;
+
+ /*
+ * Yet another weirdo special case instruction format. Part of
+ * the opcode held below in "RH". Doubly nested case would
+ * result, except that the decoded instruction
+ */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("ROL\t");
+ break;
+ case 1:
+ DECODE_PRINTF("ROR\t");
+ break;
+ case 2:
+ DECODE_PRINTF("RCL\t");
+ break;
+ case 3:
+ DECODE_PRINTF("RCR\t");
+ break;
+ case 4:
+ DECODE_PRINTF("SHL\t");
+ break;
+ case 5:
+ DECODE_PRINTF("SHR\t");
+ break;
+ case 6:
+ DECODE_PRINTF("SAL\t");
+ break;
+ case 7:
+ DECODE_PRINTF("SAR\t");
+ break;
+ }
+ }
+#endif
+ /* know operation, decode the mod byte to find the addressing
+ mode. */
+ amt = M.x86.R_CL;
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, amt);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, amt);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, amt);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, amt);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_long_operation[rh]) (destval, amt);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("WORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",CL\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = (*opcD1_word_operation[rh]) (destval, amt);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ *destreg = (*opcD1_long_operation[rh]) (*destreg, amt);
+ }
+ else {
+ u16 *destreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ *destreg = (*opcD1_word_operation[rh]) (*destreg, amt);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd4
+****************************************************************************/
+static void
+x86emuOp_aam(u8 X86EMU_UNUSED(op1))
+{
+ u8 a;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("AAM\n");
+ a = fetch_byte_imm(); /* this is a stupid encoding. */
+ if (a != 10) {
+ /* fix: add base decoding
+ aam_word(u8 val, int base a) */
+ DECODE_PRINTF("ERROR DECODING AAM\n");
+ TRACE_REGS();
+ HALT_SYS();
+ }
+ TRACE_AND_STEP();
+ /* note the type change here --- returning AL and AH in AX. */
+ M.x86.R_AX = aam_word(M.x86.R_AL);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd5
+****************************************************************************/
+static void
+x86emuOp_aad(u8 X86EMU_UNUSED(op1))
+{
+ u8 a;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("AAD\n");
+ a = fetch_byte_imm();
+ if (a != 10) {
+ /* fix: add base decoding
+ aad_word(u16 val, int base a) */
+ DECODE_PRINTF("ERROR DECODING AAM\n");
+ TRACE_REGS();
+ HALT_SYS();
+ }
+ TRACE_AND_STEP();
+ M.x86.R_AX = aad_word(M.x86.R_AX);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/* opcode 0xd6 ILLEGAL OPCODE */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xd7
+****************************************************************************/
+static void
+x86emuOp_xlat(u8 X86EMU_UNUSED(op1))
+{
+ u16 addr;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("XLAT\n");
+ TRACE_AND_STEP();
+ addr = (u16) (M.x86.R_BX + (u8) M.x86.R_AL);
+ M.x86.R_AL = fetch_data_byte(addr);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/* instuctions D8 .. DF are in i87_ops.c */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe0
+****************************************************************************/
+static void
+x86emuOp_loopne(u8 X86EMU_UNUSED(op1))
+{
+ s16 ip;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LOOPNE\t");
+ ip = (s8) fetch_byte_imm();
+ ip += (s16) M.x86.R_IP;
+ DECODE_PRINTF2("%04x\n", ip);
+ TRACE_AND_STEP();
+ M.x86.R_CX -= 1;
+ if (M.x86.R_CX != 0 && !ACCESS_FLAG(F_ZF)) /* CX != 0 and !ZF */
+ M.x86.R_IP = ip;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe1
+****************************************************************************/
+static void
+x86emuOp_loope(u8 X86EMU_UNUSED(op1))
+{
+ s16 ip;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LOOPE\t");
+ ip = (s8) fetch_byte_imm();
+ ip += (s16) M.x86.R_IP;
+ DECODE_PRINTF2("%04x\n", ip);
+ TRACE_AND_STEP();
+ M.x86.R_CX -= 1;
+ if (M.x86.R_CX != 0 && ACCESS_FLAG(F_ZF)) /* CX != 0 and ZF */
+ M.x86.R_IP = ip;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe2
+****************************************************************************/
+static void
+x86emuOp_loop(u8 X86EMU_UNUSED(op1))
+{
+ s16 ip;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LOOP\t");
+ ip = (s8) fetch_byte_imm();
+ ip += (s16) M.x86.R_IP;
+ DECODE_PRINTF2("%04x\n", ip);
+ TRACE_AND_STEP();
+ M.x86.R_CX -= 1;
+ if (M.x86.R_CX != 0)
+ M.x86.R_IP = ip;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe3
+****************************************************************************/
+static void
+x86emuOp_jcxz(u8 X86EMU_UNUSED(op1))
+{
+ u16 target;
+ s8 offset;
+
+ /* jump to byte offset if overflow flag is set */
+ START_OF_INSTR();
+ DECODE_PRINTF("JCXZ\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ if (M.x86.R_CX == 0)
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe4
+****************************************************************************/
+static void
+x86emuOp_in_byte_AL_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 port;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("IN\t");
+ port = (u8) fetch_byte_imm();
+ DECODE_PRINTF2("%x,AL\n", port);
+ TRACE_AND_STEP();
+ M.x86.R_AL = (*sys_inb) (port);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe5
+****************************************************************************/
+static void
+x86emuOp_in_word_AX_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u8 port;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("IN\t");
+ port = (u8) fetch_byte_imm();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF2("EAX,%x\n", port);
+ }
+ else {
+ DECODE_PRINTF2("AX,%x\n", port);
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = (*sys_inl) (port);
+ }
+ else {
+ M.x86.R_AX = (*sys_inw) (port);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe6
+****************************************************************************/
+static void
+x86emuOp_out_byte_IMM_AL(u8 X86EMU_UNUSED(op1))
+{
+ u8 port;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("OUT\t");
+ port = (u8) fetch_byte_imm();
+ DECODE_PRINTF2("%x,AL\n", port);
+ TRACE_AND_STEP();
+ (*sys_outb) (port, M.x86.R_AL);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe7
+****************************************************************************/
+static void
+x86emuOp_out_word_IMM_AX(u8 X86EMU_UNUSED(op1))
+{
+ u8 port;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("OUT\t");
+ port = (u8) fetch_byte_imm();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF2("%x,EAX\n", port);
+ }
+ else {
+ DECODE_PRINTF2("%x,AX\n", port);
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ (*sys_outl) (port, M.x86.R_EAX);
+ }
+ else {
+ (*sys_outw) (port, M.x86.R_AX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe8
+****************************************************************************/
+static void
+x86emuOp_call_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+ s16 ip16 = 0;
+ s32 ip32 = 0;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("CALL\t");
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ ip32 = (s32) fetch_long_imm();
+ ip32 += (s16) M.x86.R_IP; /* CHECK SIGN */
+ DECODE_PRINTF2("%04x\n", (u16) ip32);
+ CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, ip32, "");
+ }
+ else {
+ ip16 = (s16) fetch_word_imm();
+ ip16 += (s16) M.x86.R_IP; /* CHECK SIGN */
+ DECODE_PRINTF2("%04x\n", (u16) ip16);
+ CALL_TRACE(M.x86.saved_cs, M.x86.saved_ip, M.x86.R_CS, ip16, "");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ push_long(M.x86.R_EIP);
+ M.x86.R_EIP = ip32 & 0xffff;
+ }
+ else {
+ push_word(M.x86.R_IP);
+ M.x86.R_EIP = ip16;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xe9
+****************************************************************************/
+static void
+x86emuOp_jump_near_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u32 ip;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("JMP\t");
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ ip = (u32) fetch_long_imm();
+ ip += (u32) M.x86.R_EIP;
+ DECODE_PRINTF2("%08x\n", (u32) ip);
+ TRACE_AND_STEP();
+ M.x86.R_EIP = (u32) ip;
+ }
+ else {
+ ip = (s16) fetch_word_imm();
+ ip += (s16) M.x86.R_IP;
+ DECODE_PRINTF2("%04x\n", (u16) ip);
+ TRACE_AND_STEP();
+ M.x86.R_IP = (u16) ip;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xea
+****************************************************************************/
+static void
+x86emuOp_jump_far_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u16 cs;
+ u32 ip;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("JMP\tFAR ");
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ ip = fetch_long_imm();
+ }
+ else {
+ ip = fetch_word_imm();
+ }
+ cs = fetch_word_imm();
+ DECODE_PRINTF2("%04x:", cs);
+ DECODE_PRINTF2("%04x\n", ip);
+ TRACE_AND_STEP();
+ M.x86.R_EIP = ip & 0xffff;
+ M.x86.R_CS = cs;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xeb
+****************************************************************************/
+static void
+x86emuOp_jump_byte_IMM(u8 X86EMU_UNUSED(op1))
+{
+ u16 target;
+ s8 offset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("JMP\t");
+ offset = (s8) fetch_byte_imm();
+ target = (u16) (M.x86.R_IP + offset);
+ DECODE_PRINTF2("%x\n", target);
+ TRACE_AND_STEP();
+ M.x86.R_IP = target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xec
+****************************************************************************/
+static void
+x86emuOp_in_byte_AL_DX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("IN\tAL,DX\n");
+ TRACE_AND_STEP();
+ M.x86.R_AL = (*sys_inb) (M.x86.R_DX);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xed
+****************************************************************************/
+static void
+x86emuOp_in_word_AX_DX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("IN\tEAX,DX\n");
+ }
+ else {
+ DECODE_PRINTF("IN\tAX,DX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_EAX = (*sys_inl) (M.x86.R_DX);
+ }
+ else {
+ M.x86.R_AX = (*sys_inw) (M.x86.R_DX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xee
+****************************************************************************/
+static void
+x86emuOp_out_byte_DX_AL(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("OUT\tDX,AL\n");
+ TRACE_AND_STEP();
+ (*sys_outb) (M.x86.R_DX, M.x86.R_AL);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xef
+****************************************************************************/
+static void
+x86emuOp_out_word_DX_AX(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("OUT\tDX,EAX\n");
+ }
+ else {
+ DECODE_PRINTF("OUT\tDX,AX\n");
+ }
+ TRACE_AND_STEP();
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ (*sys_outl) (M.x86.R_DX, M.x86.R_EAX);
+ }
+ else {
+ (*sys_outw) (M.x86.R_DX, M.x86.R_AX);
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf0
+****************************************************************************/
+static void
+x86emuOp_lock(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("LOCK:\n");
+ TRACE_AND_STEP();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/*opcode 0xf1 ILLEGAL OPERATION */
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf2
+****************************************************************************/
+static void
+x86emuOp_repne(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("REPNE\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_PREFIX_REPNE;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf3
+****************************************************************************/
+static void
+x86emuOp_repe(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("REPE\n");
+ TRACE_AND_STEP();
+ M.x86.mode |= SYSMODE_PREFIX_REPE;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf4
+****************************************************************************/
+static void
+x86emuOp_halt(u8 X86EMU_UNUSED(op1))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("HALT\n");
+ TRACE_AND_STEP();
+ HALT_SYS();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf5
+****************************************************************************/
+static void
+x86emuOp_cmc(u8 X86EMU_UNUSED(op1))
+{
+ /* complement the carry flag. */
+ START_OF_INSTR();
+ DECODE_PRINTF("CMC\n");
+ TRACE_AND_STEP();
+ TOGGLE_FLAG(F_CF);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf6
+****************************************************************************/
+static void
+x86emuOp_opcF6_byte_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ u8 *destreg;
+ uint destoffset;
+ u8 destval, srcval;
+
+ /* long, drawn out code follows. Double switch for a total
+ of 32 cases. */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0: /* mod=00 */
+ switch (rh) {
+ case 0: /* test byte imm */
+ DECODE_PRINTF("TEST\tBYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%02x\n", srcval);
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ test_byte(destval, srcval);
+ break;
+ case 1:
+ DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+ HALT_SYS();
+ break;
+ case 2:
+ DECODE_PRINTF("NOT\tBYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = not_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3:
+ DECODE_PRINTF("NEG\tBYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 4:
+ DECODE_PRINTF("MUL\tBYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ mul_byte(destval);
+ break;
+ case 5:
+ DECODE_PRINTF("IMUL\tBYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ imul_byte(destval);
+ break;
+ case 6:
+ DECODE_PRINTF("DIV\tBYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ div_byte(destval);
+ break;
+ case 7:
+ DECODE_PRINTF("IDIV\tBYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ idiv_byte(destval);
+ break;
+ }
+ break; /* end mod==00 */
+ case 1: /* mod=01 */
+ switch (rh) {
+ case 0: /* test byte imm */
+ DECODE_PRINTF("TEST\tBYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%02x\n", srcval);
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ test_byte(destval, srcval);
+ break;
+ case 1:
+ DECODE_PRINTF("ILLEGAL OP MOD=01 RH=01 OP=F6\n");
+ HALT_SYS();
+ break;
+ case 2:
+ DECODE_PRINTF("NOT\tBYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = not_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3:
+ DECODE_PRINTF("NEG\tBYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 4:
+ DECODE_PRINTF("MUL\tBYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ mul_byte(destval);
+ break;
+ case 5:
+ DECODE_PRINTF("IMUL\tBYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ imul_byte(destval);
+ break;
+ case 6:
+ DECODE_PRINTF("DIV\tBYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ div_byte(destval);
+ break;
+ case 7:
+ DECODE_PRINTF("IDIV\tBYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ idiv_byte(destval);
+ break;
+ }
+ break; /* end mod==01 */
+ case 2: /* mod=10 */
+ switch (rh) {
+ case 0: /* test byte imm */
+ DECODE_PRINTF("TEST\tBYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%02x\n", srcval);
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ test_byte(destval, srcval);
+ break;
+ case 1:
+ DECODE_PRINTF("ILLEGAL OP MOD=10 RH=01 OP=F6\n");
+ HALT_SYS();
+ break;
+ case 2:
+ DECODE_PRINTF("NOT\tBYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = not_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 3:
+ DECODE_PRINTF("NEG\tBYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 4:
+ DECODE_PRINTF("MUL\tBYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ mul_byte(destval);
+ break;
+ case 5:
+ DECODE_PRINTF("IMUL\tBYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ imul_byte(destval);
+ break;
+ case 6:
+ DECODE_PRINTF("DIV\tBYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ div_byte(destval);
+ break;
+ case 7:
+ DECODE_PRINTF("IDIV\tBYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ idiv_byte(destval);
+ break;
+ }
+ break; /* end mod==10 */
+ case 3: /* mod=11 */
+ switch (rh) {
+ case 0: /* test byte imm */
+ DECODE_PRINTF("TEST\t");
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_byte_imm();
+ DECODE_PRINTF2("%02x\n", srcval);
+ TRACE_AND_STEP();
+ test_byte(*destreg, srcval);
+ break;
+ case 1:
+ DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+ HALT_SYS();
+ break;
+ case 2:
+ DECODE_PRINTF("NOT\t");
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = not_byte(*destreg);
+ break;
+ case 3:
+ DECODE_PRINTF("NEG\t");
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = neg_byte(*destreg);
+ break;
+ case 4:
+ DECODE_PRINTF("MUL\t");
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ mul_byte(*destreg); /*!!! */
+ break;
+ case 5:
+ DECODE_PRINTF("IMUL\t");
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ imul_byte(*destreg);
+ break;
+ case 6:
+ DECODE_PRINTF("DIV\t");
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ div_byte(*destreg);
+ break;
+ case 7:
+ DECODE_PRINTF("IDIV\t");
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ idiv_byte(*destreg);
+ break;
+ }
+ break; /* end mod==11 */
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf7
+****************************************************************************/
+static void
+x86emuOp_opcF7_word_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ /* long, drawn out code follows. Double switch for a total
+ of 32 cases. */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0: /* mod=00 */
+ switch (rh) {
+ case 0: /* test word imm */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, srcval;
+
+ DECODE_PRINTF("TEST\tDWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_long_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ test_long(destval, srcval);
+ }
+ else {
+ u16 destval, srcval;
+
+ DECODE_PRINTF("TEST\tWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ test_word(destval, srcval);
+ }
+ break;
+ case 1:
+ DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F7\n");
+ HALT_SYS();
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("NOT\tDWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = not_long(destval);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("NOT\tWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = not_word(destval);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("NEG\tDWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_long(destval);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("NEG\tWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_word(destval);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 4:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("MUL\tDWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ mul_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("MUL\tWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ mul_word(destval);
+ }
+ break;
+ case 5:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("IMUL\tDWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ imul_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("IMUL\tWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ imul_word(destval);
+ }
+ break;
+ case 6:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DIV\tDWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ div_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("DIV\tWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ div_word(destval);
+ }
+ break;
+ case 7:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("IDIV\tDWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ idiv_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("IDIV\tWORD PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ idiv_word(destval);
+ }
+ break;
+ }
+ break; /* end mod==00 */
+ case 1: /* mod=01 */
+ switch (rh) {
+ case 0: /* test word imm */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, srcval;
+
+ DECODE_PRINTF("TEST\tDWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_long_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ test_long(destval, srcval);
+ }
+ else {
+ u16 destval, srcval;
+
+ DECODE_PRINTF("TEST\tWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ test_word(destval, srcval);
+ }
+ break;
+ case 1:
+ DECODE_PRINTF("ILLEGAL OP MOD=01 RH=01 OP=F6\n");
+ HALT_SYS();
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("NOT\tDWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = not_long(destval);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("NOT\tWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = not_word(destval);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("NEG\tDWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_long(destval);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("NEG\tWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_word(destval);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 4:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("MUL\tDWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ mul_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("MUL\tWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ mul_word(destval);
+ }
+ break;
+ case 5:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("IMUL\tDWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ imul_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("IMUL\tWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ imul_word(destval);
+ }
+ break;
+ case 6:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DIV\tDWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ div_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("DIV\tWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ div_word(destval);
+ }
+ break;
+ case 7:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("IDIV\tDWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ idiv_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("IDIV\tWORD PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ idiv_word(destval);
+ }
+ break;
+ }
+ break; /* end mod==01 */
+ case 2: /* mod=10 */
+ switch (rh) {
+ case 0: /* test word imm */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval, srcval;
+
+ DECODE_PRINTF("TEST\tDWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_long_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ test_long(destval, srcval);
+ }
+ else {
+ u16 destval, srcval;
+
+ DECODE_PRINTF("TEST\tWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ test_word(destval, srcval);
+ }
+ break;
+ case 1:
+ DECODE_PRINTF("ILLEGAL OP MOD=10 RH=01 OP=F6\n");
+ HALT_SYS();
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("NOT\tDWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = not_long(destval);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("NOT\tWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = not_word(destval);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("NEG\tDWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_long(destval);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("NEG\tWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval = neg_word(destval);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 4:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("MUL\tDWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ mul_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("MUL\tWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ mul_word(destval);
+ }
+ break;
+ case 5:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("IMUL\tDWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ imul_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("IMUL\tWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ imul_word(destval);
+ }
+ break;
+ case 6:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("DIV\tDWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ div_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("DIV\tWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ div_word(destval);
+ }
+ break;
+ case 7:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+
+ DECODE_PRINTF("IDIV\tDWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ idiv_long(destval);
+ }
+ else {
+ u16 destval;
+
+ DECODE_PRINTF("IDIV\tWORD PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ idiv_word(destval);
+ }
+ break;
+ }
+ break; /* end mod==10 */
+ case 3: /* mod=11 */
+ switch (rh) {
+ case 0: /* test word imm */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ DECODE_PRINTF("TEST\t");
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_long_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ test_long(*destreg, srcval);
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ DECODE_PRINTF("TEST\t");
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ srcval = fetch_word_imm();
+ DECODE_PRINTF2("%x\n", srcval);
+ TRACE_AND_STEP();
+ test_word(*destreg, srcval);
+ }
+ break;
+ case 1:
+ DECODE_PRINTF("ILLEGAL OP MOD=00 RH=01 OP=F6\n");
+ HALT_SYS();
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ DECODE_PRINTF("NOT\t");
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = not_long(*destreg);
+ }
+ else {
+ u16 *destreg;
+
+ DECODE_PRINTF("NOT\t");
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = not_word(*destreg);
+ }
+ break;
+ case 3:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ DECODE_PRINTF("NEG\t");
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = neg_long(*destreg);
+ }
+ else {
+ u16 *destreg;
+
+ DECODE_PRINTF("NEG\t");
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = neg_word(*destreg);
+ }
+ break;
+ case 4:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ DECODE_PRINTF("MUL\t");
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ mul_long(*destreg); /*!!! */
+ }
+ else {
+ u16 *destreg;
+
+ DECODE_PRINTF("MUL\t");
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ mul_word(*destreg); /*!!! */
+ }
+ break;
+ case 5:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ DECODE_PRINTF("IMUL\t");
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ imul_long(*destreg);
+ }
+ else {
+ u16 *destreg;
+
+ DECODE_PRINTF("IMUL\t");
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ imul_word(*destreg);
+ }
+ break;
+ case 6:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ DECODE_PRINTF("DIV\t");
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ div_long(*destreg);
+ }
+ else {
+ u16 *destreg;
+
+ DECODE_PRINTF("DIV\t");
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ div_word(*destreg);
+ }
+ break;
+ case 7:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+
+ DECODE_PRINTF("IDIV\t");
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ idiv_long(*destreg);
+ }
+ else {
+ u16 *destreg;
+
+ DECODE_PRINTF("IDIV\t");
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ idiv_word(*destreg);
+ }
+ break;
+ }
+ break; /* end mod==11 */
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf8
+****************************************************************************/
+static void
+x86emuOp_clc(u8 X86EMU_UNUSED(op1))
+{
+ /* clear the carry flag. */
+ START_OF_INSTR();
+ DECODE_PRINTF("CLC\n");
+ TRACE_AND_STEP();
+ CLEAR_FLAG(F_CF);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xf9
+****************************************************************************/
+static void
+x86emuOp_stc(u8 X86EMU_UNUSED(op1))
+{
+ /* set the carry flag. */
+ START_OF_INSTR();
+ DECODE_PRINTF("STC\n");
+ TRACE_AND_STEP();
+ SET_FLAG(F_CF);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfa
+****************************************************************************/
+static void
+x86emuOp_cli(u8 X86EMU_UNUSED(op1))
+{
+ /* clear interrupts. */
+ START_OF_INSTR();
+ DECODE_PRINTF("CLI\n");
+ TRACE_AND_STEP();
+ CLEAR_FLAG(F_IF);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfb
+****************************************************************************/
+static void
+x86emuOp_sti(u8 X86EMU_UNUSED(op1))
+{
+ /* enable interrupts. */
+ START_OF_INSTR();
+ DECODE_PRINTF("STI\n");
+ TRACE_AND_STEP();
+ SET_FLAG(F_IF);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfc
+****************************************************************************/
+static void
+x86emuOp_cld(u8 X86EMU_UNUSED(op1))
+{
+ /* clear interrupts. */
+ START_OF_INSTR();
+ DECODE_PRINTF("CLD\n");
+ TRACE_AND_STEP();
+ CLEAR_FLAG(F_DF);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfd
+****************************************************************************/
+static void
+x86emuOp_std(u8 X86EMU_UNUSED(op1))
+{
+ /* clear interrupts. */
+ START_OF_INSTR();
+ DECODE_PRINTF("STD\n");
+ TRACE_AND_STEP();
+ SET_FLAG(F_DF);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xfe
+****************************************************************************/
+static void
+x86emuOp_opcFE_byte_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rh, rl;
+ u8 destval;
+ uint destoffset;
+ u8 *destreg;
+
+ /* Yet another special case instruction. */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+
+ switch (rh) {
+ case 0:
+ DECODE_PRINTF("INC\t");
+ break;
+ case 1:
+ DECODE_PRINTF("DEC\t");
+ break;
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ case 6:
+ case 7:
+ DECODE_PRINTF2("ILLEGAL OP MAJOR OP 0xFE MINOR OP %x \n", mod);
+ HALT_SYS();
+ break;
+ }
+ }
+#endif
+ switch (mod) {
+ case 0:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ switch (rh) {
+ case 0: /* inc word ptr ... */
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = inc_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1: /* dec word ptr ... */
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = dec_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ }
+ break;
+ case 1:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ switch (rh) {
+ case 0:
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = inc_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = dec_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ }
+ break;
+ case 2:
+ DECODE_PRINTF("BYTE PTR ");
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ switch (rh) {
+ case 0:
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = inc_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ case 1:
+ destval = fetch_data_byte(destoffset);
+ TRACE_AND_STEP();
+ destval = dec_byte(destval);
+ store_data_byte(destoffset, destval);
+ break;
+ }
+ break;
+ case 3:
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ switch (rh) {
+ case 0:
+ TRACE_AND_STEP();
+ *destreg = inc_byte(*destreg);
+ break;
+ case 1:
+ TRACE_AND_STEP();
+ *destreg = dec_byte(*destreg);
+ break;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0xff
+****************************************************************************/
+static void
+x86emuOp_opcFF_word_RM(u8 X86EMU_UNUSED(op1))
+{
+ int mod, rh, rl;
+ uint destoffset = 0;
+ u16 *destreg;
+ u16 destval, destval2;
+
+ /* Yet another special case instruction. */
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+#ifdef DEBUG
+ if (DEBUG_DECODE()) {
+ /* XXX DECODE_PRINTF may be changed to something more
+ general, so that it is important to leave the strings
+ in the same format, even though the result is that the
+ above test is done twice. */
+
+ switch (rh) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("INC\tDWORD PTR ");
+ }
+ else {
+ DECODE_PRINTF("INC\tWORD PTR ");
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ DECODE_PRINTF("DEC\tDWORD PTR ");
+ }
+ else {
+ DECODE_PRINTF("DEC\tWORD PTR ");
+ }
+ break;
+ case 2:
+ DECODE_PRINTF("CALL\t");
+ break;
+ case 3:
+ DECODE_PRINTF("CALL\tFAR ");
+ break;
+ case 4:
+ DECODE_PRINTF("JMP\t");
+ break;
+ case 5:
+ DECODE_PRINTF("JMP\tFAR ");
+ break;
+ case 6:
+ DECODE_PRINTF("PUSH\t");
+ break;
+ case 7:
+ DECODE_PRINTF("ILLEGAL DECODING OF OPCODE FF\t");
+ HALT_SYS();
+ break;
+ }
+ }
+#endif
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ switch (rh) {
+ case 0: /* inc word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval32 = inc_long(destval32);
+ store_data_long(destoffset, destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval16 = inc_word(destval16);
+ store_data_word(destoffset, destval16);
+ }
+ break;
+ case 1: /* dec word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval32 = dec_long(destval32);
+ store_data_long(destoffset, destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval16 = dec_word(destval16);
+ store_data_word(destoffset, destval16);
+ }
+ break;
+ case 2: /* call word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ push_long(M.x86.R_EIP);
+ M.x86.R_EIP = destval;
+ } else {
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = destval;
+ }
+ break;
+ case 3: /* call far ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ destval = fetch_data_long(destoffset);
+ destval2 = fetch_data_word(destoffset + 4);
+ TRACE_AND_STEP();
+ push_long(M.x86.R_CS);
+ M.x86.R_CS = destval2;
+ push_long(M.x86.R_EIP);
+ M.x86.R_EIP = destval;
+ } else {
+ destval = fetch_data_word(destoffset);
+ destval2 = fetch_data_word(destoffset + 2);
+ TRACE_AND_STEP();
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = destval2;
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = destval;
+ }
+ break;
+ case 4: /* jmp word ptr ... */
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ M.x86.R_IP = destval;
+ break;
+ case 5: /* jmp far ptr ... */
+ destval = fetch_data_word(destoffset);
+ destval2 = fetch_data_word(destoffset + 2);
+ TRACE_AND_STEP();
+ M.x86.R_IP = destval;
+ M.x86.R_CS = destval2;
+ break;
+ case 6: /* push word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ push_long(destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ push_word(destval16);
+ }
+ break;
+ }
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ switch (rh) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval32 = inc_long(destval32);
+ store_data_long(destoffset, destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval16 = inc_word(destval16);
+ store_data_word(destoffset, destval16);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval32 = dec_long(destval32);
+ store_data_long(destoffset, destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval16 = dec_word(destval16);
+ store_data_word(destoffset, destval16);
+ }
+ break;
+ case 2: /* call word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ push_long(M.x86.R_EIP);
+ M.x86.R_EIP = destval;
+ } else {
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = destval;
+ }
+ break;
+ case 3: /* call far ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ destval = fetch_data_long(destoffset);
+ destval2 = fetch_data_word(destoffset + 4);
+ TRACE_AND_STEP();
+ push_long(M.x86.R_CS);
+ M.x86.R_CS = destval2;
+ push_long(M.x86.R_EIP);
+ M.x86.R_EIP = destval;
+ } else {
+ destval = fetch_data_word(destoffset);
+ destval2 = fetch_data_word(destoffset + 2);
+ TRACE_AND_STEP();
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = destval2;
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = destval;
+ }
+ break;
+ case 4: /* jmp word ptr ... */
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ M.x86.R_IP = destval;
+ break;
+ case 5: /* jmp far ptr ... */
+ destval = fetch_data_word(destoffset);
+ destval2 = fetch_data_word(destoffset + 2);
+ TRACE_AND_STEP();
+ M.x86.R_IP = destval;
+ M.x86.R_CS = destval2;
+ break;
+ case 6: /* push word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ push_long(destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ push_word(destval16);
+ }
+ break;
+ }
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ switch (rh) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval32 = inc_long(destval32);
+ store_data_long(destoffset, destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval16 = inc_word(destval16);
+ store_data_word(destoffset, destval16);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ destval32 = dec_long(destval32);
+ store_data_long(destoffset, destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ destval16 = dec_word(destval16);
+ store_data_word(destoffset, destval16);
+ }
+ break;
+ case 2: /* call word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ destval = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ push_long(M.x86.R_EIP);
+ M.x86.R_EIP = destval;
+ } else {
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = destval;
+ }
+ break;
+ case 3: /* call far ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ destval = fetch_data_long(destoffset);
+ destval2 = fetch_data_word(destoffset + 4);
+ TRACE_AND_STEP();
+ push_long(M.x86.R_CS);
+ M.x86.R_CS = destval2;
+ push_long(M.x86.R_EIP);
+ M.x86.R_EIP = destval;
+ } else {
+ destval = fetch_data_word(destoffset);
+ destval2 = fetch_data_word(destoffset + 2);
+ TRACE_AND_STEP();
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = destval2;
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = destval;
+ }
+ break;
+ case 4: /* jmp word ptr ... */
+ destval = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ M.x86.R_IP = destval;
+ break;
+ case 5: /* jmp far ptr ... */
+ destval = fetch_data_word(destoffset);
+ destval2 = fetch_data_word(destoffset + 2);
+ TRACE_AND_STEP();
+ M.x86.R_IP = destval;
+ M.x86.R_CS = destval2;
+ break;
+ case 6: /* push word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval32;
+
+ destval32 = fetch_data_long(destoffset);
+ TRACE_AND_STEP();
+ push_long(destval32);
+ }
+ else {
+ u16 destval16;
+
+ destval16 = fetch_data_word(destoffset);
+ TRACE_AND_STEP();
+ push_word(destval16);
+ }
+ break;
+ }
+ break;
+ case 3:
+ switch (rh) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg32;
+
+ destreg32 = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg32 = inc_long(*destreg32);
+ }
+ else {
+ u16 *destreg16;
+
+ destreg16 = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg16 = inc_word(*destreg16);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg32;
+
+ destreg32 = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg32 = dec_long(*destreg32);
+ }
+ else {
+ u16 *destreg16;
+
+ destreg16 = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg16 = dec_word(*destreg16);
+ }
+ break;
+ case 2: /* call word ptr ... */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ destreg = (u16 *)DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ push_long(M.x86.R_EIP);
+ M.x86.R_EIP = *destreg;
+ } else {
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = *destreg;
+ }
+ break;
+ case 3: /* jmp far ptr ... */
+ DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n");
+ TRACE_AND_STEP();
+ HALT_SYS();
+ break;
+
+ case 4: /* jmp ... */
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ M.x86.R_IP = (u16) (*destreg);
+ break;
+ case 5: /* jmp far ptr ... */
+ DECODE_PRINTF("OPERATION UNDEFINED 0XFF \n");
+ TRACE_AND_STEP();
+ HALT_SYS();
+ break;
+ case 6:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg32;
+
+ destreg32 = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ push_long(*destreg32);
+ }
+ else {
+ u16 *destreg16;
+
+ destreg16 = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ push_word(*destreg16);
+ }
+ break;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/***************************************************************************
+ * Single byte operation code table:
+ **************************************************************************/
+void (*x86emu_optab[256]) (u8) = {
+/* 0x00 */ x86emuOp_add_byte_RM_R,
+/* 0x01 */ x86emuOp_add_word_RM_R,
+/* 0x02 */ x86emuOp_add_byte_R_RM,
+/* 0x03 */ x86emuOp_add_word_R_RM,
+/* 0x04 */ x86emuOp_add_byte_AL_IMM,
+/* 0x05 */ x86emuOp_add_word_AX_IMM,
+/* 0x06 */ x86emuOp_push_ES,
+/* 0x07 */ x86emuOp_pop_ES,
+/* 0x08 */ x86emuOp_or_byte_RM_R,
+/* 0x09 */ x86emuOp_or_word_RM_R,
+/* 0x0a */ x86emuOp_or_byte_R_RM,
+/* 0x0b */ x86emuOp_or_word_R_RM,
+/* 0x0c */ x86emuOp_or_byte_AL_IMM,
+/* 0x0d */ x86emuOp_or_word_AX_IMM,
+/* 0x0e */ x86emuOp_push_CS,
+/* 0x0f */ x86emuOp_two_byte,
+/* 0x10 */ x86emuOp_adc_byte_RM_R,
+/* 0x11 */ x86emuOp_adc_word_RM_R,
+/* 0x12 */ x86emuOp_adc_byte_R_RM,
+/* 0x13 */ x86emuOp_adc_word_R_RM,
+/* 0x14 */ x86emuOp_adc_byte_AL_IMM,
+/* 0x15 */ x86emuOp_adc_word_AX_IMM,
+/* 0x16 */ x86emuOp_push_SS,
+/* 0x17 */ x86emuOp_pop_SS,
+/* 0x18 */ x86emuOp_sbb_byte_RM_R,
+/* 0x19 */ x86emuOp_sbb_word_RM_R,
+/* 0x1a */ x86emuOp_sbb_byte_R_RM,
+/* 0x1b */ x86emuOp_sbb_word_R_RM,
+/* 0x1c */ x86emuOp_sbb_byte_AL_IMM,
+/* 0x1d */ x86emuOp_sbb_word_AX_IMM,
+/* 0x1e */ x86emuOp_push_DS,
+/* 0x1f */ x86emuOp_pop_DS,
+/* 0x20 */ x86emuOp_and_byte_RM_R,
+/* 0x21 */ x86emuOp_and_word_RM_R,
+/* 0x22 */ x86emuOp_and_byte_R_RM,
+/* 0x23 */ x86emuOp_and_word_R_RM,
+/* 0x24 */ x86emuOp_and_byte_AL_IMM,
+/* 0x25 */ x86emuOp_and_word_AX_IMM,
+/* 0x26 */ x86emuOp_segovr_ES,
+/* 0x27 */ x86emuOp_daa,
+/* 0x28 */ x86emuOp_sub_byte_RM_R,
+/* 0x29 */ x86emuOp_sub_word_RM_R,
+/* 0x2a */ x86emuOp_sub_byte_R_RM,
+/* 0x2b */ x86emuOp_sub_word_R_RM,
+/* 0x2c */ x86emuOp_sub_byte_AL_IMM,
+/* 0x2d */ x86emuOp_sub_word_AX_IMM,
+/* 0x2e */ x86emuOp_segovr_CS,
+/* 0x2f */ x86emuOp_das,
+/* 0x30 */ x86emuOp_xor_byte_RM_R,
+/* 0x31 */ x86emuOp_xor_word_RM_R,
+/* 0x32 */ x86emuOp_xor_byte_R_RM,
+/* 0x33 */ x86emuOp_xor_word_R_RM,
+/* 0x34 */ x86emuOp_xor_byte_AL_IMM,
+/* 0x35 */ x86emuOp_xor_word_AX_IMM,
+/* 0x36 */ x86emuOp_segovr_SS,
+/* 0x37 */ x86emuOp_aaa,
+/* 0x38 */ x86emuOp_cmp_byte_RM_R,
+/* 0x39 */ x86emuOp_cmp_word_RM_R,
+/* 0x3a */ x86emuOp_cmp_byte_R_RM,
+/* 0x3b */ x86emuOp_cmp_word_R_RM,
+/* 0x3c */ x86emuOp_cmp_byte_AL_IMM,
+/* 0x3d */ x86emuOp_cmp_word_AX_IMM,
+/* 0x3e */ x86emuOp_segovr_DS,
+/* 0x3f */ x86emuOp_aas,
+/* 0x40 */ x86emuOp_inc_AX,
+/* 0x41 */ x86emuOp_inc_CX,
+/* 0x42 */ x86emuOp_inc_DX,
+/* 0x43 */ x86emuOp_inc_BX,
+/* 0x44 */ x86emuOp_inc_SP,
+/* 0x45 */ x86emuOp_inc_BP,
+/* 0x46 */ x86emuOp_inc_SI,
+/* 0x47 */ x86emuOp_inc_DI,
+/* 0x48 */ x86emuOp_dec_AX,
+/* 0x49 */ x86emuOp_dec_CX,
+/* 0x4a */ x86emuOp_dec_DX,
+/* 0x4b */ x86emuOp_dec_BX,
+/* 0x4c */ x86emuOp_dec_SP,
+/* 0x4d */ x86emuOp_dec_BP,
+/* 0x4e */ x86emuOp_dec_SI,
+/* 0x4f */ x86emuOp_dec_DI,
+/* 0x50 */ x86emuOp_push_AX,
+/* 0x51 */ x86emuOp_push_CX,
+/* 0x52 */ x86emuOp_push_DX,
+/* 0x53 */ x86emuOp_push_BX,
+/* 0x54 */ x86emuOp_push_SP,
+/* 0x55 */ x86emuOp_push_BP,
+/* 0x56 */ x86emuOp_push_SI,
+/* 0x57 */ x86emuOp_push_DI,
+/* 0x58 */ x86emuOp_pop_AX,
+/* 0x59 */ x86emuOp_pop_CX,
+/* 0x5a */ x86emuOp_pop_DX,
+/* 0x5b */ x86emuOp_pop_BX,
+/* 0x5c */ x86emuOp_pop_SP,
+/* 0x5d */ x86emuOp_pop_BP,
+/* 0x5e */ x86emuOp_pop_SI,
+/* 0x5f */ x86emuOp_pop_DI,
+/* 0x60 */ x86emuOp_push_all,
+/* 0x61 */ x86emuOp_pop_all,
+ /* 0x62 */ x86emuOp_illegal_op,
+ /* bound */
+ /* 0x63 */ x86emuOp_illegal_op,
+ /* arpl */
+/* 0x64 */ x86emuOp_segovr_FS,
+/* 0x65 */ x86emuOp_segovr_GS,
+/* 0x66 */ x86emuOp_prefix_data,
+/* 0x67 */ x86emuOp_prefix_addr,
+/* 0x68 */ x86emuOp_push_word_IMM,
+/* 0x69 */ x86emuOp_imul_word_IMM,
+/* 0x6a */ x86emuOp_push_byte_IMM,
+/* 0x6b */ x86emuOp_imul_byte_IMM,
+/* 0x6c */ x86emuOp_ins_byte,
+/* 0x6d */ x86emuOp_ins_word,
+/* 0x6e */ x86emuOp_outs_byte,
+/* 0x6f */ x86emuOp_outs_word,
+/* 0x70 */ x86emuOp_jump_near_O,
+/* 0x71 */ x86emuOp_jump_near_NO,
+/* 0x72 */ x86emuOp_jump_near_B,
+/* 0x73 */ x86emuOp_jump_near_NB,
+/* 0x74 */ x86emuOp_jump_near_Z,
+/* 0x75 */ x86emuOp_jump_near_NZ,
+/* 0x76 */ x86emuOp_jump_near_BE,
+/* 0x77 */ x86emuOp_jump_near_NBE,
+/* 0x78 */ x86emuOp_jump_near_S,
+/* 0x79 */ x86emuOp_jump_near_NS,
+/* 0x7a */ x86emuOp_jump_near_P,
+/* 0x7b */ x86emuOp_jump_near_NP,
+/* 0x7c */ x86emuOp_jump_near_L,
+/* 0x7d */ x86emuOp_jump_near_NL,
+/* 0x7e */ x86emuOp_jump_near_LE,
+/* 0x7f */ x86emuOp_jump_near_NLE,
+/* 0x80 */ x86emuOp_opc80_byte_RM_IMM,
+/* 0x81 */ x86emuOp_opc81_word_RM_IMM,
+/* 0x82 */ x86emuOp_opc82_byte_RM_IMM,
+/* 0x83 */ x86emuOp_opc83_word_RM_IMM,
+/* 0x84 */ x86emuOp_test_byte_RM_R,
+/* 0x85 */ x86emuOp_test_word_RM_R,
+/* 0x86 */ x86emuOp_xchg_byte_RM_R,
+/* 0x87 */ x86emuOp_xchg_word_RM_R,
+/* 0x88 */ x86emuOp_mov_byte_RM_R,
+/* 0x89 */ x86emuOp_mov_word_RM_R,
+/* 0x8a */ x86emuOp_mov_byte_R_RM,
+/* 0x8b */ x86emuOp_mov_word_R_RM,
+/* 0x8c */ x86emuOp_mov_word_RM_SR,
+/* 0x8d */ x86emuOp_lea_word_R_M,
+/* 0x8e */ x86emuOp_mov_word_SR_RM,
+/* 0x8f */ x86emuOp_pop_RM,
+/* 0x90 */ x86emuOp_nop,
+/* 0x91 */ x86emuOp_xchg_word_AX_CX,
+/* 0x92 */ x86emuOp_xchg_word_AX_DX,
+/* 0x93 */ x86emuOp_xchg_word_AX_BX,
+/* 0x94 */ x86emuOp_xchg_word_AX_SP,
+/* 0x95 */ x86emuOp_xchg_word_AX_BP,
+/* 0x96 */ x86emuOp_xchg_word_AX_SI,
+/* 0x97 */ x86emuOp_xchg_word_AX_DI,
+/* 0x98 */ x86emuOp_cbw,
+/* 0x99 */ x86emuOp_cwd,
+/* 0x9a */ x86emuOp_call_far_IMM,
+/* 0x9b */ x86emuOp_wait,
+/* 0x9c */ x86emuOp_pushf_word,
+/* 0x9d */ x86emuOp_popf_word,
+/* 0x9e */ x86emuOp_sahf,
+/* 0x9f */ x86emuOp_lahf,
+/* 0xa0 */ x86emuOp_mov_AL_M_IMM,
+/* 0xa1 */ x86emuOp_mov_AX_M_IMM,
+/* 0xa2 */ x86emuOp_mov_M_AL_IMM,
+/* 0xa3 */ x86emuOp_mov_M_AX_IMM,
+/* 0xa4 */ x86emuOp_movs_byte,
+/* 0xa5 */ x86emuOp_movs_word,
+/* 0xa6 */ x86emuOp_cmps_byte,
+/* 0xa7 */ x86emuOp_cmps_word,
+/* 0xa8 */ x86emuOp_test_AL_IMM,
+/* 0xa9 */ x86emuOp_test_AX_IMM,
+/* 0xaa */ x86emuOp_stos_byte,
+/* 0xab */ x86emuOp_stos_word,
+/* 0xac */ x86emuOp_lods_byte,
+/* 0xad */ x86emuOp_lods_word,
+/* 0xac */ x86emuOp_scas_byte,
+/* 0xad */ x86emuOp_scas_word,
+/* 0xb0 */ x86emuOp_mov_byte_AL_IMM,
+/* 0xb1 */ x86emuOp_mov_byte_CL_IMM,
+/* 0xb2 */ x86emuOp_mov_byte_DL_IMM,
+/* 0xb3 */ x86emuOp_mov_byte_BL_IMM,
+/* 0xb4 */ x86emuOp_mov_byte_AH_IMM,
+/* 0xb5 */ x86emuOp_mov_byte_CH_IMM,
+/* 0xb6 */ x86emuOp_mov_byte_DH_IMM,
+/* 0xb7 */ x86emuOp_mov_byte_BH_IMM,
+/* 0xb8 */ x86emuOp_mov_word_AX_IMM,
+/* 0xb9 */ x86emuOp_mov_word_CX_IMM,
+/* 0xba */ x86emuOp_mov_word_DX_IMM,
+/* 0xbb */ x86emuOp_mov_word_BX_IMM,
+/* 0xbc */ x86emuOp_mov_word_SP_IMM,
+/* 0xbd */ x86emuOp_mov_word_BP_IMM,
+/* 0xbe */ x86emuOp_mov_word_SI_IMM,
+/* 0xbf */ x86emuOp_mov_word_DI_IMM,
+/* 0xc0 */ x86emuOp_opcC0_byte_RM_MEM,
+/* 0xc1 */ x86emuOp_opcC1_word_RM_MEM,
+/* 0xc2 */ x86emuOp_ret_near_IMM,
+/* 0xc3 */ x86emuOp_ret_near,
+/* 0xc4 */ x86emuOp_les_R_IMM,
+/* 0xc5 */ x86emuOp_lds_R_IMM,
+/* 0xc6 */ x86emuOp_mov_byte_RM_IMM,
+/* 0xc7 */ x86emuOp_mov_word_RM_IMM,
+/* 0xc8 */ x86emuOp_enter,
+/* 0xc9 */ x86emuOp_leave,
+/* 0xca */ x86emuOp_ret_far_IMM,
+/* 0xcb */ x86emuOp_ret_far,
+/* 0xcc */ x86emuOp_int3,
+/* 0xcd */ x86emuOp_int_IMM,
+/* 0xce */ x86emuOp_into,
+/* 0xcf */ x86emuOp_iret,
+/* 0xd0 */ x86emuOp_opcD0_byte_RM_1,
+/* 0xd1 */ x86emuOp_opcD1_word_RM_1,
+/* 0xd2 */ x86emuOp_opcD2_byte_RM_CL,
+/* 0xd3 */ x86emuOp_opcD3_word_RM_CL,
+/* 0xd4 */ x86emuOp_aam,
+/* 0xd5 */ x86emuOp_aad,
+ /* 0xd6 */ x86emuOp_illegal_op,
+ /* Undocumented SETALC instruction */
+/* 0xd7 */ x86emuOp_xlat,
+/* 0xd8 */ x86emuOp_esc_coprocess_d8,
+/* 0xd9 */ x86emuOp_esc_coprocess_d9,
+/* 0xda */ x86emuOp_esc_coprocess_da,
+/* 0xdb */ x86emuOp_esc_coprocess_db,
+/* 0xdc */ x86emuOp_esc_coprocess_dc,
+/* 0xdd */ x86emuOp_esc_coprocess_dd,
+/* 0xde */ x86emuOp_esc_coprocess_de,
+/* 0xdf */ x86emuOp_esc_coprocess_df,
+/* 0xe0 */ x86emuOp_loopne,
+/* 0xe1 */ x86emuOp_loope,
+/* 0xe2 */ x86emuOp_loop,
+/* 0xe3 */ x86emuOp_jcxz,
+/* 0xe4 */ x86emuOp_in_byte_AL_IMM,
+/* 0xe5 */ x86emuOp_in_word_AX_IMM,
+/* 0xe6 */ x86emuOp_out_byte_IMM_AL,
+/* 0xe7 */ x86emuOp_out_word_IMM_AX,
+/* 0xe8 */ x86emuOp_call_near_IMM,
+/* 0xe9 */ x86emuOp_jump_near_IMM,
+/* 0xea */ x86emuOp_jump_far_IMM,
+/* 0xeb */ x86emuOp_jump_byte_IMM,
+/* 0xec */ x86emuOp_in_byte_AL_DX,
+/* 0xed */ x86emuOp_in_word_AX_DX,
+/* 0xee */ x86emuOp_out_byte_DX_AL,
+/* 0xef */ x86emuOp_out_word_DX_AX,
+/* 0xf0 */ x86emuOp_lock,
+/* 0xf1 */ x86emuOp_illegal_op,
+/* 0xf2 */ x86emuOp_repne,
+/* 0xf3 */ x86emuOp_repe,
+/* 0xf4 */ x86emuOp_halt,
+/* 0xf5 */ x86emuOp_cmc,
+/* 0xf6 */ x86emuOp_opcF6_byte_RM,
+/* 0xf7 */ x86emuOp_opcF7_word_RM,
+/* 0xf8 */ x86emuOp_clc,
+/* 0xf9 */ x86emuOp_stc,
+/* 0xfa */ x86emuOp_cli,
+/* 0xfb */ x86emuOp_sti,
+/* 0xfc */ x86emuOp_cld,
+/* 0xfd */ x86emuOp_std,
+/* 0xfe */ x86emuOp_opcFE_byte_RM,
+/* 0xff */ x86emuOp_opcFF_word_RM,
+};
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: This file includes subroutines to implement the decoding
+* and emulation of all the x86 extended two-byte processor
+* instructions.
+*
+****************************************************************************/
+
+#include "x86emu/x86emui.h"
+
+#undef bswap_32
+#define bswap_32(x) (((x & 0xff000000) >> 24) | \
+ ((x & 0x00ff0000) >> 8) | \
+ ((x & 0x0000ff00) << 8) | \
+ ((x & 0x000000ff) << 24))
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+PARAMETERS:
+op1 - Instruction op code
+
+REMARKS:
+Handles illegal opcodes.
+****************************************************************************/
+static void
+x86emuOp2_illegal_op(u8 op2)
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n");
+ TRACE_REGS();
+ printk("%04x:%04x: %02X ILLEGAL EXTENDED X86 OPCODE!\n",
+ M.x86.R_CS, M.x86.R_IP - 2, op2);
+ HALT_SYS();
+ END_OF_INSTR();
+}
+
+#define xorl(a,b) ((a) && !(b)) || (!(a) && (b))
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0x31
+****************************************************************************/
+static void
+x86emuOp2_rdtsc(u8 X86EMU_UNUSED(op2))
+{
+#ifdef __HAS_LONG_LONG__
+ static u64 counter = 0;
+#else
+ static u32 counter = 0;
+#endif
+
+ counter += 0x10000;
+
+ /* read timestamp counter */
+ /*
+ * Note that instead of actually trying to accurately measure this, we just
+ * increase the counter by a fixed amount every time we hit one of these
+ * instructions. Feel free to come up with a better method.
+ */
+ START_OF_INSTR();
+ DECODE_PRINTF("RDTSC\n");
+ TRACE_AND_STEP();
+#ifdef __HAS_LONG_LONG__
+ M.x86.R_EAX = counter & 0xffffffff;
+ M.x86.R_EDX = counter >> 32;
+#else
+ M.x86.R_EAX = counter;
+ M.x86.R_EDX = 0;
+#endif
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0x80-0x8F
+****************************************************************************/
+static void
+x86emuOp2_long_jump(u8 op2)
+{
+ s32 target;
+ const char *name = NULL;
+ int cond = 0;
+
+ /* conditional jump to word offset. */
+ START_OF_INSTR();
+ switch (op2) {
+ case 0x80:
+ name = "JO\t";
+ cond = ACCESS_FLAG(F_OF);
+ break;
+ case 0x81:
+ name = "JNO\t";
+ cond = !ACCESS_FLAG(F_OF);
+ break;
+ case 0x82:
+ name = "JB\t";
+ cond = ACCESS_FLAG(F_CF);
+ break;
+ case 0x83:
+ name = "JNB\t";
+ cond = !ACCESS_FLAG(F_CF);
+ break;
+ case 0x84:
+ name = "JZ\t";
+ cond = ACCESS_FLAG(F_ZF);
+ break;
+ case 0x85:
+ name = "JNZ\t";
+ cond = !ACCESS_FLAG(F_ZF);
+ break;
+ case 0x86:
+ name = "JBE\t";
+ cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF);
+ break;
+ case 0x87:
+ name = "JNBE\t";
+ cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF));
+ break;
+ case 0x88:
+ name = "JS\t";
+ cond = ACCESS_FLAG(F_SF);
+ break;
+ case 0x89:
+ name = "JNS\t";
+ cond = !ACCESS_FLAG(F_SF);
+ break;
+ case 0x8a:
+ name = "JP\t";
+ cond = ACCESS_FLAG(F_PF);
+ break;
+ case 0x8b:
+ name = "JNP\t";
+ cond = !ACCESS_FLAG(F_PF);
+ break;
+ case 0x8c:
+ name = "JL\t";
+ cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF));
+ break;
+ case 0x8d:
+ name = "JNL\t";
+ cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)));
+ break;
+ case 0x8e:
+ name = "JLE\t";
+ cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) ||
+ ACCESS_FLAG(F_ZF));
+ break;
+ case 0x8f:
+ name = "JNLE\t";
+ cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) ||
+ ACCESS_FLAG(F_ZF));
+ break;
+ }
+ DECODE_PRINTF(name);
+ (void) name;
+ target = (s16) fetch_word_imm();
+ target += (s16) M.x86.R_IP;
+ DECODE_PRINTF2("%04x\n", target);
+ TRACE_AND_STEP();
+ if (cond)
+ M.x86.R_IP = (u16) target;
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0x90-0x9F
+****************************************************************************/
+static void
+x86emuOp2_set_byte(u8 op2)
+{
+ int mod, rl, rh;
+ uint destoffset;
+ u8 *destreg;
+ const char *name = NULL;
+ int cond = 0;
+
+ START_OF_INSTR();
+ switch (op2) {
+ case 0x90:
+ name = "SETO\t";
+ cond = ACCESS_FLAG(F_OF);
+ break;
+ case 0x91:
+ name = "SETNO\t";
+ cond = !ACCESS_FLAG(F_OF);
+ break;
+ case 0x92:
+ name = "SETB\t";
+ cond = ACCESS_FLAG(F_CF);
+ break;
+ case 0x93:
+ name = "SETNB\t";
+ cond = !ACCESS_FLAG(F_CF);
+ break;
+ case 0x94:
+ name = "SETZ\t";
+ cond = ACCESS_FLAG(F_ZF);
+ break;
+ case 0x95:
+ name = "SETNZ\t";
+ cond = !ACCESS_FLAG(F_ZF);
+ break;
+ case 0x96:
+ name = "SETBE\t";
+ cond = ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF);
+ break;
+ case 0x97:
+ name = "SETNBE\t";
+ cond = !(ACCESS_FLAG(F_CF) || ACCESS_FLAG(F_ZF));
+ break;
+ case 0x98:
+ name = "SETS\t";
+ cond = ACCESS_FLAG(F_SF);
+ break;
+ case 0x99:
+ name = "SETNS\t";
+ cond = !ACCESS_FLAG(F_SF);
+ break;
+ case 0x9a:
+ name = "SETP\t";
+ cond = ACCESS_FLAG(F_PF);
+ break;
+ case 0x9b:
+ name = "SETNP\t";
+ cond = !ACCESS_FLAG(F_PF);
+ break;
+ case 0x9c:
+ name = "SETL\t";
+ cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF));
+ break;
+ case 0x9d:
+ name = "SETNL\t";
+ cond = xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF));
+ break;
+ case 0x9e:
+ name = "SETLE\t";
+ cond = (xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) ||
+ ACCESS_FLAG(F_ZF));
+ break;
+ case 0x9f:
+ name = "SETNLE\t";
+ cond = !(xorl(ACCESS_FLAG(F_SF), ACCESS_FLAG(F_OF)) ||
+ ACCESS_FLAG(F_ZF));
+ break;
+ }
+ DECODE_PRINTF(name);
+ (void) name;
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destoffset = decode_rm00_address(rl);
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, cond ? 0x01 : 0x00);
+ break;
+ case 1:
+ destoffset = decode_rm01_address(rl);
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, cond ? 0x01 : 0x00);
+ break;
+ case 2:
+ destoffset = decode_rm10_address(rl);
+ TRACE_AND_STEP();
+ store_data_byte(destoffset, cond ? 0x01 : 0x00);
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_BYTE_REGISTER(rl);
+ TRACE_AND_STEP();
+ *destreg = cond ? 0x01 : 0x00;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa0
+****************************************************************************/
+static void
+x86emuOp2_push_FS(u8 X86EMU_UNUSED(op2))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("PUSH\tFS\n");
+ TRACE_AND_STEP();
+ push_word(M.x86.R_FS);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa1
+****************************************************************************/
+static void
+x86emuOp2_pop_FS(u8 X86EMU_UNUSED(op2))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("POP\tFS\n");
+ TRACE_AND_STEP();
+ M.x86.R_FS = pop_word();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS: CPUID takes EAX/ECX as inputs, writes EAX/EBX/ECX/EDX as output
+Handles opcode 0x0f,0xa2
+****************************************************************************/
+static void
+x86emuOp2_cpuid(u8 X86EMU_UNUSED(op2))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("CPUID\n");
+ TRACE_AND_STEP();
+ cpuid();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa3
+****************************************************************************/
+static void
+x86emuOp2_bt_R(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+ int bit, disp;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("BT\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+ }
+ else {
+ u16 srcval;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+ }
+ else {
+ u16 srcval;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+ }
+ else {
+ u16 srcval;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ CONDITIONAL_SET_FLAG(srcval & (0x1 << bit), F_CF);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg, *shiftreg;
+
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit), F_CF);
+ }
+ else {
+ u16 *srcreg, *shiftreg;
+
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ CONDITIONAL_SET_FLAG(*srcreg & (0x1 << bit), F_CF);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa4
+****************************************************************************/
+static void
+x86emuOp2_shld_IMM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint destoffset;
+ u8 shift;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SHLD\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shld_long(destval, *shiftreg, shift);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shld_word(destval, *shiftreg, shift);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shld_long(destval, *shiftreg, shift);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shld_word(destval, *shiftreg, shift);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shld_long(destval, *shiftreg, shift);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shld_word(destval, *shiftreg, shift);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *shiftreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ *destreg = shld_long(*destreg, *shiftreg, shift);
+ }
+ else {
+ u16 *destreg, *shiftreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ *destreg = shld_word(*destreg, *shiftreg, shift);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa5
+****************************************************************************/
+static void
+x86emuOp2_shld_CL(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SHLD\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shld_long(destval, *shiftreg, M.x86.R_CL);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shld_word(destval, *shiftreg, M.x86.R_CL);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shld_long(destval, *shiftreg, M.x86.R_CL);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shld_word(destval, *shiftreg, M.x86.R_CL);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shld_long(destval, *shiftreg, M.x86.R_CL);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shld_word(destval, *shiftreg, M.x86.R_CL);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *shiftreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ *destreg = shld_long(*destreg, *shiftreg, M.x86.R_CL);
+ }
+ else {
+ u16 *destreg, *shiftreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ *destreg = shld_word(*destreg, *shiftreg, M.x86.R_CL);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa8
+****************************************************************************/
+static void
+x86emuOp2_push_GS(u8 X86EMU_UNUSED(op2))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("PUSH\tGS\n");
+ TRACE_AND_STEP();
+ push_word(M.x86.R_GS);
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xa9
+****************************************************************************/
+static void
+x86emuOp2_pop_GS(u8 X86EMU_UNUSED(op2))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("POP\tGS\n");
+ TRACE_AND_STEP();
+ M.x86.R_GS = pop_word();
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xab
+****************************************************************************/
+static void
+x86emuOp2_bts_R(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+ int bit, disp;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("BTS\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval | mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, srcval | mask);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval | mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, srcval | mask);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval | mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, srcval | mask);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg, *shiftreg;
+ u32 mask;
+
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+ *srcreg |= mask;
+ }
+ else {
+ u16 *srcreg, *shiftreg;
+ u16 mask;
+
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+ *srcreg |= mask;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xac
+****************************************************************************/
+static void
+x86emuOp2_shrd_IMM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint destoffset;
+ u8 shift;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SHLD\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shrd_long(destval, *shiftreg, shift);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shrd_word(destval, *shiftreg, shift);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shrd_long(destval, *shiftreg, shift);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shrd_word(destval, *shiftreg, shift);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shrd_long(destval, *shiftreg, shift);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shrd_word(destval, *shiftreg, shift);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *shiftreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ *destreg = shrd_long(*destreg, *shiftreg, shift);
+ }
+ else {
+ u16 *destreg, *shiftreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ DECODE_PRINTF2("%d\n", shift);
+ TRACE_AND_STEP();
+ *destreg = shrd_word(*destreg, *shiftreg, shift);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xad
+****************************************************************************/
+static void
+x86emuOp2_shrd_CL(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint destoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("SHLD\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shrd_long(destval, *shiftreg, M.x86.R_CL);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shrd_word(destval, *shiftreg, M.x86.R_CL);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shrd_long(destval, *shiftreg, M.x86.R_CL);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shrd_word(destval, *shiftreg, M.x86.R_CL);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 destval;
+ u32 *shiftreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_long(destoffset);
+ destval = shrd_long(destval, *shiftreg, M.x86.R_CL);
+ store_data_long(destoffset, destval);
+ }
+ else {
+ u16 destval;
+ u16 *shiftreg;
+
+ destoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ destval = fetch_data_word(destoffset);
+ destval = shrd_word(destval, *shiftreg, M.x86.R_CL);
+ store_data_word(destoffset, destval);
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *shiftreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ *destreg = shrd_long(*destreg, *shiftreg, M.x86.R_CL);
+ }
+ else {
+ u16 *destreg, *shiftreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",CL\n");
+ TRACE_AND_STEP();
+ *destreg = shrd_word(*destreg, *shiftreg, M.x86.R_CL);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xaf
+****************************************************************************/
+static void
+x86emuOp2_imul_R_RM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("IMUL\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ TRACE_AND_STEP();
+ res = (s16) * destreg * (s16) srcval;
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ TRACE_AND_STEP();
+ res = (s16) * destreg * (s16) srcval;
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+ u32 res_lo, res_hi;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_long(srcoffset);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) srcval);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+ u32 res;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ TRACE_AND_STEP();
+ res = (s16) * destreg * (s16) srcval;
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg, *srcreg;
+ u32 res_lo, res_hi;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ TRACE_AND_STEP();
+ imul_long_direct(&res_lo, &res_hi, (s32) * destreg, (s32) * srcreg);
+ if (res_hi != 0) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u32) res_lo;
+ }
+ else {
+ u16 *destreg, *srcreg;
+ u32 res;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ res = (s16) * destreg * (s16) * srcreg;
+ if (res > 0xFFFF) {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ *destreg = (u16) res;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb2
+****************************************************************************/
+static void
+x86emuOp2_lss_R_IMM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rh, rl;
+ u16 *dstreg;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LSS\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_SS = fetch_data_word(srcoffset + 2);
+ break;
+ case 1:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_SS = fetch_data_word(srcoffset + 2);
+ break;
+ case 2:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_SS = fetch_data_word(srcoffset + 2);
+ break;
+ case 3: /* register to register */
+ /* UNDEFINED! */
+ TRACE_AND_STEP();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb3
+****************************************************************************/
+static void
+x86emuOp2_btr_R(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+ int bit, disp;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("BTR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval & ~mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, (u16) (srcval & ~mask));
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval & ~mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, (u16) (srcval & ~mask));
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval & ~mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, (u16) (srcval & ~mask));
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg, *shiftreg;
+ u32 mask;
+
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+ *srcreg &= ~mask;
+ }
+ else {
+ u16 *srcreg, *shiftreg;
+ u16 mask;
+
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+ *srcreg &= ~mask;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb4
+****************************************************************************/
+static void
+x86emuOp2_lfs_R_IMM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rh, rl;
+ u16 *dstreg;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LFS\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_FS = fetch_data_word(srcoffset + 2);
+ break;
+ case 1:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_FS = fetch_data_word(srcoffset + 2);
+ break;
+ case 2:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_FS = fetch_data_word(srcoffset + 2);
+ break;
+ case 3: /* register to register */
+ /* UNDEFINED! */
+ TRACE_AND_STEP();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb5
+****************************************************************************/
+static void
+x86emuOp2_lgs_R_IMM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rh, rl;
+ u16 *dstreg;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("LGS\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_GS = fetch_data_word(srcoffset + 2);
+ break;
+ case 1:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_GS = fetch_data_word(srcoffset + 2);
+ break;
+ case 2:
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *dstreg = fetch_data_word(srcoffset);
+ M.x86.R_GS = fetch_data_word(srcoffset + 2);
+ break;
+ case 3: /* register to register */
+ /* UNDEFINED! */
+ TRACE_AND_STEP();
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb6
+****************************************************************************/
+static void
+x86emuOp2_movzx_byte_R_RM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOVZX\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_byte(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u8 *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ }
+ else {
+ u16 *destreg;
+ u8 *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xb7
+****************************************************************************/
+static void
+x86emuOp2_movzx_word_R_RM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+ u32 *destreg;
+ u32 srcval;
+ u16 *srcreg;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOVZX\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 1:
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 2:
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = fetch_data_word(srcoffset);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = *srcreg;
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xba
+****************************************************************************/
+static void
+x86emuOp2_btX_I(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+ int bit;
+
+ START_OF_INSTR();
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (rh) {
+ case 4:
+ DECODE_PRINTF("BT\t");
+ break;
+ case 5:
+ DECODE_PRINTF("BTS\t");
+ break;
+ case 6:
+ DECODE_PRINTF("BTR\t");
+ break;
+ case 7:
+ DECODE_PRINTF("BTC\t");
+ break;
+ default:
+ DECODE_PRINTF("ILLEGAL EXTENDED X86 OPCODE\n");
+ TRACE_REGS();
+ printk("%04x:%04x: %02X%02X ILLEGAL EXTENDED X86 OPCODE EXTENSION!\n",
+ M.x86.R_CS, M.x86.R_IP - 3, op2, (mod << 6) | (rh << 3) | rl);
+ HALT_SYS();
+ }
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u8 shift;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ TRACE_AND_STEP();
+ bit = shift & 0x1F;
+ srcval = fetch_data_long(srcoffset);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ switch (rh) {
+ case 5:
+ store_data_long(srcoffset, srcval | mask);
+ break;
+ case 6:
+ store_data_long(srcoffset, srcval & ~mask);
+ break;
+ case 7:
+ store_data_long(srcoffset, srcval ^ mask);
+ break;
+ default:
+ break;
+ }
+ }
+ else {
+ u16 srcval, mask;
+ u8 shift;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ TRACE_AND_STEP();
+ bit = shift & 0xF;
+ srcval = fetch_data_word(srcoffset);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ switch (rh) {
+ case 5:
+ store_data_word(srcoffset, srcval | mask);
+ break;
+ case 6:
+ store_data_word(srcoffset, srcval & ~mask);
+ break;
+ case 7:
+ store_data_word(srcoffset, srcval ^ mask);
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u8 shift;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ TRACE_AND_STEP();
+ bit = shift & 0x1F;
+ srcval = fetch_data_long(srcoffset);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ switch (rh) {
+ case 5:
+ store_data_long(srcoffset, srcval | mask);
+ break;
+ case 6:
+ store_data_long(srcoffset, srcval & ~mask);
+ break;
+ case 7:
+ store_data_long(srcoffset, srcval ^ mask);
+ break;
+ default:
+ break;
+ }
+ }
+ else {
+ u16 srcval, mask;
+ u8 shift;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ TRACE_AND_STEP();
+ bit = shift & 0xF;
+ srcval = fetch_data_word(srcoffset);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ switch (rh) {
+ case 5:
+ store_data_word(srcoffset, srcval | mask);
+ break;
+ case 6:
+ store_data_word(srcoffset, srcval & ~mask);
+ break;
+ case 7:
+ store_data_word(srcoffset, srcval ^ mask);
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u8 shift;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ TRACE_AND_STEP();
+ bit = shift & 0x1F;
+ srcval = fetch_data_long(srcoffset);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ switch (rh) {
+ case 5:
+ store_data_long(srcoffset, srcval | mask);
+ break;
+ case 6:
+ store_data_long(srcoffset, srcval & ~mask);
+ break;
+ case 7:
+ store_data_long(srcoffset, srcval ^ mask);
+ break;
+ default:
+ break;
+ }
+ }
+ else {
+ u16 srcval, mask;
+ u8 shift;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ TRACE_AND_STEP();
+ bit = shift & 0xF;
+ srcval = fetch_data_word(srcoffset);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ switch (rh) {
+ case 5:
+ store_data_word(srcoffset, srcval | mask);
+ break;
+ case 6:
+ store_data_word(srcoffset, srcval & ~mask);
+ break;
+ case 7:
+ store_data_word(srcoffset, srcval ^ mask);
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg;
+ u32 mask;
+ u8 shift;
+
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ TRACE_AND_STEP();
+ bit = shift & 0x1F;
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+ switch (rh) {
+ case 5:
+ *srcreg |= mask;
+ break;
+ case 6:
+ *srcreg &= ~mask;
+ break;
+ case 7:
+ *srcreg ^= mask;
+ break;
+ default:
+ break;
+ }
+ }
+ else {
+ u16 *srcreg;
+ u16 mask;
+ u8 shift;
+
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shift = fetch_byte_imm();
+ TRACE_AND_STEP();
+ bit = shift & 0xF;
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+ switch (rh) {
+ case 5:
+ *srcreg |= mask;
+ break;
+ case 6:
+ *srcreg &= ~mask;
+ break;
+ case 7:
+ *srcreg ^= mask;
+ break;
+ default:
+ break;
+ }
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbb
+****************************************************************************/
+static void
+x86emuOp2_btc_R(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+ int bit, disp;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("BTC\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval ^ mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, (u16) (srcval ^ mask));
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval ^ mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, (u16) (srcval ^ mask));
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, mask;
+ u32 *shiftreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ disp = (s16) * shiftreg >> 5;
+ srcval = fetch_data_long(srcoffset + disp);
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_long(srcoffset + disp, srcval ^ mask);
+ }
+ else {
+ u16 srcval, mask;
+ u16 *shiftreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ disp = (s16) * shiftreg >> 4;
+ srcval = fetch_data_word(srcoffset + disp);
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(srcval & mask, F_CF);
+ store_data_word(srcoffset + disp, (u16) (srcval ^ mask));
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *srcreg, *shiftreg;
+ u32 mask;
+
+ srcreg = DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0x1F;
+ mask = (0x1 << bit);
+ CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+ *srcreg ^= mask;
+ }
+ else {
+ u16 *srcreg, *shiftreg;
+ u16 mask;
+
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ shiftreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ bit = *shiftreg & 0xF;
+ mask = (u16) (0x1 << bit);
+ CONDITIONAL_SET_FLAG(*srcreg & mask, F_CF);
+ *srcreg ^= mask;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbc
+****************************************************************************/
+static void
+x86emuOp2_bsf(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("BSF\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, *dstreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_long(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 0; *dstreg < 32; (*dstreg)++)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ else {
+ u16 srcval, *dstreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_word(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 0; *dstreg < 16; (*dstreg)++)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, *dstreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_long(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 0; *dstreg < 32; (*dstreg)++)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ else {
+ u16 srcval, *dstreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_word(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 0; *dstreg < 16; (*dstreg)++)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, *dstreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_long(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 0; *dstreg < 32; (*dstreg)++)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ else {
+ u16 srcval, *dstreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_word(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 0; *dstreg < 16; (*dstreg)++)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, *dstreg;
+
+ srcval = *DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 0; *dstreg < 32; (*dstreg)++)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ else {
+ u16 srcval, *dstreg;
+
+ srcval = *DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 0; *dstreg < 16; (*dstreg)++)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbd
+****************************************************************************/
+static void
+x86emuOp2_bsr(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("BSR\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, *dstreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_long(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 31; *dstreg > 0; (*dstreg)--)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ else {
+ u16 srcval, *dstreg;
+
+ srcoffset = decode_rm00_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_word(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 15; *dstreg > 0; (*dstreg)--)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, *dstreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_long(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 31; *dstreg > 0; (*dstreg)--)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ else {
+ u16 srcval, *dstreg;
+
+ srcoffset = decode_rm01_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_word(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 15; *dstreg > 0; (*dstreg)--)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, *dstreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_long(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 31; *dstreg > 0; (*dstreg)--)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ else {
+ u16 srcval, *dstreg;
+
+ srcoffset = decode_rm10_address(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ srcval = fetch_data_word(srcoffset);
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 15; *dstreg > 0; (*dstreg)--)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 srcval, *dstreg;
+
+ srcval = *DECODE_RM_LONG_REGISTER(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_LONG_REGISTER(rh);
+ TRACE_AND_STEP();
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 31; *dstreg > 0; (*dstreg)--)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ else {
+ u16 srcval, *dstreg;
+
+ srcval = *DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF(",");
+ dstreg = DECODE_RM_WORD_REGISTER(rh);
+ TRACE_AND_STEP();
+ CONDITIONAL_SET_FLAG(srcval == 0, F_ZF);
+ for (*dstreg = 15; *dstreg > 0; (*dstreg)--)
+ if ((srcval >> *dstreg) & 1)
+ break;
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbe
+****************************************************************************/
+static void
+x86emuOp2_movsx_byte_R_RM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOVSX\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = (s32) ((s8) fetch_data_byte(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = (s16) ((s8) fetch_data_byte(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 1:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = (s32) ((s8) fetch_data_byte(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = (s16) ((s8) fetch_data_byte(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 2:
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u32 srcval;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = (s32) ((s8) fetch_data_byte(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ else {
+ u16 *destreg;
+ u16 srcval;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = (s16) ((s8) fetch_data_byte(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ }
+ break;
+ case 3: /* register to register */
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ u32 *destreg;
+ u8 *srcreg;
+
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = (s32) ((s8) * srcreg);
+ }
+ else {
+ u16 *destreg;
+ u8 *srcreg;
+
+ destreg = DECODE_RM_WORD_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_BYTE_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = (s16) ((s8) * srcreg);
+ }
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/****************************************************************************
+REMARKS:
+Handles opcode 0x0f,0xbf
+****************************************************************************/
+static void
+x86emuOp2_movsx_word_R_RM(u8 X86EMU_UNUSED(op2))
+{
+ int mod, rl, rh;
+ uint srcoffset;
+ u32 *destreg;
+ u32 srcval;
+ u16 *srcreg;
+
+ START_OF_INSTR();
+ DECODE_PRINTF("MOVSX\t");
+ FETCH_DECODE_MODRM(mod, rh, rl);
+ switch (mod) {
+ case 0:
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm00_address(rl);
+ srcval = (s32) ((s16) fetch_data_word(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 1:
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm01_address(rl);
+ srcval = (s32) ((s16) fetch_data_word(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 2:
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcoffset = decode_rm10_address(rl);
+ srcval = (s32) ((s16) fetch_data_word(srcoffset));
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = srcval;
+ break;
+ case 3: /* register to register */
+ destreg = DECODE_RM_LONG_REGISTER(rh);
+ DECODE_PRINTF(",");
+ srcreg = DECODE_RM_WORD_REGISTER(rl);
+ DECODE_PRINTF("\n");
+ TRACE_AND_STEP();
+ *destreg = (s32) ((s16) * srcreg);
+ break;
+ }
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/* Handles opcodes 0xc8-0xcf */
+static void
+x86emuOp2_bswap(u8 X86EMU_UNUSED(op2))
+{
+ START_OF_INSTR();
+ DECODE_PRINTF("BSWAP\n");
+ TRACE_AND_STEP();
+
+ switch (op2) {
+ case 0xc8:
+ M.x86.R_EAX = bswap_32(M.x86.R_EAX);
+ break;
+ case 0xc9:
+ M.x86.R_ECX = bswap_32(M.x86.R_ECX);
+ break;
+ case 0xca:
+ M.x86.R_EDX = bswap_32(M.x86.R_EDX);
+ break;
+ case 0xcb:
+ M.x86.R_EBX = bswap_32(M.x86.R_EBX);
+ break;
+ case 0xcc:
+ M.x86.R_ESP = bswap_32(M.x86.R_ESP);
+ break;
+ case 0xcd:
+ M.x86.R_EBP = bswap_32(M.x86.R_EBP);
+ break;
+ case 0xce:
+ M.x86.R_ESI = bswap_32(M.x86.R_ESI);
+ break;
+ case 0xcf:
+ M.x86.R_EDI = bswap_32(M.x86.R_EDI);
+ break;
+ default:
+ /* can't happen */
+ break;
+ }
+
+ DECODE_CLEAR_SEGOVR();
+ END_OF_INSTR();
+}
+
+/***************************************************************************
+ * Double byte operation code table:
+ **************************************************************************/
+void (*x86emu_optab2[256]) (u8) = {
+ /* 0x00 */ x86emuOp2_illegal_op,
+ /* Group F (ring 0 PM) */
+ /* 0x01 */ x86emuOp2_illegal_op,
+ /* Group G (ring 0 PM) */
+ /* 0x02 */ x86emuOp2_illegal_op,
+ /* lar (ring 0 PM) */
+ /* 0x03 */ x86emuOp2_illegal_op,
+ /* lsl (ring 0 PM) */
+/* 0x04 */ x86emuOp2_illegal_op,
+ /* 0x05 */ x86emuOp2_illegal_op,
+ /* loadall (undocumented) */
+ /* 0x06 */ x86emuOp2_illegal_op,
+ /* clts (ring 0 PM) */
+ /* 0x07 */ x86emuOp2_illegal_op,
+ /* loadall (undocumented) */
+ /* 0x08 */ x86emuOp2_illegal_op,
+ /* invd (ring 0 PM) */
+ /* 0x09 */ x86emuOp2_illegal_op,
+ /* wbinvd (ring 0 PM) */
+/* 0x0a */ x86emuOp2_illegal_op,
+/* 0x0b */ x86emuOp2_illegal_op,
+/* 0x0c */ x86emuOp2_illegal_op,
+/* 0x0d */ x86emuOp2_illegal_op,
+/* 0x0e */ x86emuOp2_illegal_op,
+/* 0x0f */ x86emuOp2_illegal_op,
+/* 0x10 */ x86emuOp2_illegal_op,
+/* 0x11 */ x86emuOp2_illegal_op,
+/* 0x12 */ x86emuOp2_illegal_op,
+/* 0x13 */ x86emuOp2_illegal_op,
+/* 0x14 */ x86emuOp2_illegal_op,
+/* 0x15 */ x86emuOp2_illegal_op,
+/* 0x16 */ x86emuOp2_illegal_op,
+/* 0x17 */ x86emuOp2_illegal_op,
+/* 0x18 */ x86emuOp2_illegal_op,
+/* 0x19 */ x86emuOp2_illegal_op,
+/* 0x1a */ x86emuOp2_illegal_op,
+/* 0x1b */ x86emuOp2_illegal_op,
+/* 0x1c */ x86emuOp2_illegal_op,
+/* 0x1d */ x86emuOp2_illegal_op,
+/* 0x1e */ x86emuOp2_illegal_op,
+/* 0x1f */ x86emuOp2_illegal_op,
+ /* 0x20 */ x86emuOp2_illegal_op,
+ /* mov reg32,creg (ring 0 PM) */
+ /* 0x21 */ x86emuOp2_illegal_op,
+ /* mov reg32,dreg (ring 0 PM) */
+ /* 0x22 */ x86emuOp2_illegal_op,
+ /* mov creg,reg32 (ring 0 PM) */
+ /* 0x23 */ x86emuOp2_illegal_op,
+ /* mov dreg,reg32 (ring 0 PM) */
+ /* 0x24 */ x86emuOp2_illegal_op,
+ /* mov reg32,treg (ring 0 PM) */
+/* 0x25 */ x86emuOp2_illegal_op,
+ /* 0x26 */ x86emuOp2_illegal_op,
+ /* mov treg,reg32 (ring 0 PM) */
+/* 0x27 */ x86emuOp2_illegal_op,
+/* 0x28 */ x86emuOp2_illegal_op,
+/* 0x29 */ x86emuOp2_illegal_op,
+/* 0x2a */ x86emuOp2_illegal_op,
+/* 0x2b */ x86emuOp2_illegal_op,
+/* 0x2c */ x86emuOp2_illegal_op,
+/* 0x2d */ x86emuOp2_illegal_op,
+/* 0x2e */ x86emuOp2_illegal_op,
+/* 0x2f */ x86emuOp2_illegal_op,
+/* 0x30 */ x86emuOp2_illegal_op,
+/* 0x31 */ x86emuOp2_rdtsc,
+/* 0x32 */ x86emuOp2_illegal_op,
+/* 0x33 */ x86emuOp2_illegal_op,
+/* 0x34 */ x86emuOp2_illegal_op,
+/* 0x35 */ x86emuOp2_illegal_op,
+/* 0x36 */ x86emuOp2_illegal_op,
+/* 0x37 */ x86emuOp2_illegal_op,
+/* 0x38 */ x86emuOp2_illegal_op,
+/* 0x39 */ x86emuOp2_illegal_op,
+/* 0x3a */ x86emuOp2_illegal_op,
+/* 0x3b */ x86emuOp2_illegal_op,
+/* 0x3c */ x86emuOp2_illegal_op,
+/* 0x3d */ x86emuOp2_illegal_op,
+/* 0x3e */ x86emuOp2_illegal_op,
+/* 0x3f */ x86emuOp2_illegal_op,
+/* 0x40 */ x86emuOp2_illegal_op,
+/* 0x41 */ x86emuOp2_illegal_op,
+/* 0x42 */ x86emuOp2_illegal_op,
+/* 0x43 */ x86emuOp2_illegal_op,
+/* 0x44 */ x86emuOp2_illegal_op,
+/* 0x45 */ x86emuOp2_illegal_op,
+/* 0x46 */ x86emuOp2_illegal_op,
+/* 0x47 */ x86emuOp2_illegal_op,
+/* 0x48 */ x86emuOp2_illegal_op,
+/* 0x49 */ x86emuOp2_illegal_op,
+/* 0x4a */ x86emuOp2_illegal_op,
+/* 0x4b */ x86emuOp2_illegal_op,
+/* 0x4c */ x86emuOp2_illegal_op,
+/* 0x4d */ x86emuOp2_illegal_op,
+/* 0x4e */ x86emuOp2_illegal_op,
+/* 0x4f */ x86emuOp2_illegal_op,
+/* 0x50 */ x86emuOp2_illegal_op,
+/* 0x51 */ x86emuOp2_illegal_op,
+/* 0x52 */ x86emuOp2_illegal_op,
+/* 0x53 */ x86emuOp2_illegal_op,
+/* 0x54 */ x86emuOp2_illegal_op,
+/* 0x55 */ x86emuOp2_illegal_op,
+/* 0x56 */ x86emuOp2_illegal_op,
+/* 0x57 */ x86emuOp2_illegal_op,
+/* 0x58 */ x86emuOp2_illegal_op,
+/* 0x59 */ x86emuOp2_illegal_op,
+/* 0x5a */ x86emuOp2_illegal_op,
+/* 0x5b */ x86emuOp2_illegal_op,
+/* 0x5c */ x86emuOp2_illegal_op,
+/* 0x5d */ x86emuOp2_illegal_op,
+/* 0x5e */ x86emuOp2_illegal_op,
+/* 0x5f */ x86emuOp2_illegal_op,
+/* 0x60 */ x86emuOp2_illegal_op,
+/* 0x61 */ x86emuOp2_illegal_op,
+/* 0x62 */ x86emuOp2_illegal_op,
+/* 0x63 */ x86emuOp2_illegal_op,
+/* 0x64 */ x86emuOp2_illegal_op,
+/* 0x65 */ x86emuOp2_illegal_op,
+/* 0x66 */ x86emuOp2_illegal_op,
+/* 0x67 */ x86emuOp2_illegal_op,
+/* 0x68 */ x86emuOp2_illegal_op,
+/* 0x69 */ x86emuOp2_illegal_op,
+/* 0x6a */ x86emuOp2_illegal_op,
+/* 0x6b */ x86emuOp2_illegal_op,
+/* 0x6c */ x86emuOp2_illegal_op,
+/* 0x6d */ x86emuOp2_illegal_op,
+/* 0x6e */ x86emuOp2_illegal_op,
+/* 0x6f */ x86emuOp2_illegal_op,
+/* 0x70 */ x86emuOp2_illegal_op,
+/* 0x71 */ x86emuOp2_illegal_op,
+/* 0x72 */ x86emuOp2_illegal_op,
+/* 0x73 */ x86emuOp2_illegal_op,
+/* 0x74 */ x86emuOp2_illegal_op,
+/* 0x75 */ x86emuOp2_illegal_op,
+/* 0x76 */ x86emuOp2_illegal_op,
+/* 0x77 */ x86emuOp2_illegal_op,
+/* 0x78 */ x86emuOp2_illegal_op,
+/* 0x79 */ x86emuOp2_illegal_op,
+/* 0x7a */ x86emuOp2_illegal_op,
+/* 0x7b */ x86emuOp2_illegal_op,
+/* 0x7c */ x86emuOp2_illegal_op,
+/* 0x7d */ x86emuOp2_illegal_op,
+/* 0x7e */ x86emuOp2_illegal_op,
+/* 0x7f */ x86emuOp2_illegal_op,
+/* 0x80 */ x86emuOp2_long_jump,
+/* 0x81 */ x86emuOp2_long_jump,
+/* 0x82 */ x86emuOp2_long_jump,
+/* 0x83 */ x86emuOp2_long_jump,
+/* 0x84 */ x86emuOp2_long_jump,
+/* 0x85 */ x86emuOp2_long_jump,
+/* 0x86 */ x86emuOp2_long_jump,
+/* 0x87 */ x86emuOp2_long_jump,
+/* 0x88 */ x86emuOp2_long_jump,
+/* 0x89 */ x86emuOp2_long_jump,
+/* 0x8a */ x86emuOp2_long_jump,
+/* 0x8b */ x86emuOp2_long_jump,
+/* 0x8c */ x86emuOp2_long_jump,
+/* 0x8d */ x86emuOp2_long_jump,
+/* 0x8e */ x86emuOp2_long_jump,
+/* 0x8f */ x86emuOp2_long_jump,
+/* 0x90 */ x86emuOp2_set_byte,
+/* 0x91 */ x86emuOp2_set_byte,
+/* 0x92 */ x86emuOp2_set_byte,
+/* 0x93 */ x86emuOp2_set_byte,
+/* 0x94 */ x86emuOp2_set_byte,
+/* 0x95 */ x86emuOp2_set_byte,
+/* 0x96 */ x86emuOp2_set_byte,
+/* 0x97 */ x86emuOp2_set_byte,
+/* 0x98 */ x86emuOp2_set_byte,
+/* 0x99 */ x86emuOp2_set_byte,
+/* 0x9a */ x86emuOp2_set_byte,
+/* 0x9b */ x86emuOp2_set_byte,
+/* 0x9c */ x86emuOp2_set_byte,
+/* 0x9d */ x86emuOp2_set_byte,
+/* 0x9e */ x86emuOp2_set_byte,
+/* 0x9f */ x86emuOp2_set_byte,
+/* 0xa0 */ x86emuOp2_push_FS,
+/* 0xa1 */ x86emuOp2_pop_FS,
+/* 0xa2 */ x86emuOp2_cpuid,
+/* 0xa3 */ x86emuOp2_bt_R,
+/* 0xa4 */ x86emuOp2_shld_IMM,
+/* 0xa5 */ x86emuOp2_shld_CL,
+/* 0xa6 */ x86emuOp2_illegal_op,
+/* 0xa7 */ x86emuOp2_illegal_op,
+/* 0xa8 */ x86emuOp2_push_GS,
+/* 0xa9 */ x86emuOp2_pop_GS,
+/* 0xaa */ x86emuOp2_illegal_op,
+/* 0xab */ x86emuOp2_bts_R,
+/* 0xac */ x86emuOp2_shrd_IMM,
+/* 0xad */ x86emuOp2_shrd_CL,
+/* 0xae */ x86emuOp2_illegal_op,
+/* 0xaf */ x86emuOp2_imul_R_RM,
+ /* 0xb0 */ x86emuOp2_illegal_op,
+ /* TODO: cmpxchg */
+ /* 0xb1 */ x86emuOp2_illegal_op,
+ /* TODO: cmpxchg */
+/* 0xb2 */ x86emuOp2_lss_R_IMM,
+/* 0xb3 */ x86emuOp2_btr_R,
+/* 0xb4 */ x86emuOp2_lfs_R_IMM,
+/* 0xb5 */ x86emuOp2_lgs_R_IMM,
+/* 0xb6 */ x86emuOp2_movzx_byte_R_RM,
+/* 0xb7 */ x86emuOp2_movzx_word_R_RM,
+/* 0xb8 */ x86emuOp2_illegal_op,
+/* 0xb9 */ x86emuOp2_illegal_op,
+/* 0xba */ x86emuOp2_btX_I,
+/* 0xbb */ x86emuOp2_btc_R,
+/* 0xbc */ x86emuOp2_bsf,
+/* 0xbd */ x86emuOp2_bsr,
+/* 0xbe */ x86emuOp2_movsx_byte_R_RM,
+/* 0xbf */ x86emuOp2_movsx_word_R_RM,
+ /* 0xc0 */ x86emuOp2_illegal_op,
+ /* TODO: xadd */
+ /* 0xc1 */ x86emuOp2_illegal_op,
+ /* TODO: xadd */
+/* 0xc2 */ x86emuOp2_illegal_op,
+/* 0xc3 */ x86emuOp2_illegal_op,
+/* 0xc4 */ x86emuOp2_illegal_op,
+/* 0xc5 */ x86emuOp2_illegal_op,
+/* 0xc6 */ x86emuOp2_illegal_op,
+/* 0xc7 */ x86emuOp2_illegal_op,
+/* 0xc8 */ x86emuOp2_bswap,
+/* 0xc9 */ x86emuOp2_bswap,
+/* 0xca */ x86emuOp2_bswap,
+/* 0xcb */ x86emuOp2_bswap,
+/* 0xcc */ x86emuOp2_bswap,
+/* 0xcd */ x86emuOp2_bswap,
+/* 0xce */ x86emuOp2_bswap,
+/* 0xcf */ x86emuOp2_bswap,
+/* 0xd0 */ x86emuOp2_illegal_op,
+/* 0xd1 */ x86emuOp2_illegal_op,
+/* 0xd2 */ x86emuOp2_illegal_op,
+/* 0xd3 */ x86emuOp2_illegal_op,
+/* 0xd4 */ x86emuOp2_illegal_op,
+/* 0xd5 */ x86emuOp2_illegal_op,
+/* 0xd6 */ x86emuOp2_illegal_op,
+/* 0xd7 */ x86emuOp2_illegal_op,
+/* 0xd8 */ x86emuOp2_illegal_op,
+/* 0xd9 */ x86emuOp2_illegal_op,
+/* 0xda */ x86emuOp2_illegal_op,
+/* 0xdb */ x86emuOp2_illegal_op,
+/* 0xdc */ x86emuOp2_illegal_op,
+/* 0xdd */ x86emuOp2_illegal_op,
+/* 0xde */ x86emuOp2_illegal_op,
+/* 0xdf */ x86emuOp2_illegal_op,
+/* 0xe0 */ x86emuOp2_illegal_op,
+/* 0xe1 */ x86emuOp2_illegal_op,
+/* 0xe2 */ x86emuOp2_illegal_op,
+/* 0xe3 */ x86emuOp2_illegal_op,
+/* 0xe4 */ x86emuOp2_illegal_op,
+/* 0xe5 */ x86emuOp2_illegal_op,
+/* 0xe6 */ x86emuOp2_illegal_op,
+/* 0xe7 */ x86emuOp2_illegal_op,
+/* 0xe8 */ x86emuOp2_illegal_op,
+/* 0xe9 */ x86emuOp2_illegal_op,
+/* 0xea */ x86emuOp2_illegal_op,
+/* 0xeb */ x86emuOp2_illegal_op,
+/* 0xec */ x86emuOp2_illegal_op,
+/* 0xed */ x86emuOp2_illegal_op,
+/* 0xee */ x86emuOp2_illegal_op,
+/* 0xef */ x86emuOp2_illegal_op,
+/* 0xf0 */ x86emuOp2_illegal_op,
+/* 0xf1 */ x86emuOp2_illegal_op,
+/* 0xf2 */ x86emuOp2_illegal_op,
+/* 0xf3 */ x86emuOp2_illegal_op,
+/* 0xf4 */ x86emuOp2_illegal_op,
+/* 0xf5 */ x86emuOp2_illegal_op,
+/* 0xf6 */ x86emuOp2_illegal_op,
+/* 0xf7 */ x86emuOp2_illegal_op,
+/* 0xf8 */ x86emuOp2_illegal_op,
+/* 0xf9 */ x86emuOp2_illegal_op,
+/* 0xfa */ x86emuOp2_illegal_op,
+/* 0xfb */ x86emuOp2_illegal_op,
+/* 0xfc */ x86emuOp2_illegal_op,
+/* 0xfd */ x86emuOp2_illegal_op,
+/* 0xfe */ x86emuOp2_illegal_op,
+/* 0xff */ x86emuOp2_illegal_op,
+};
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: This file contains the code to implement the primitive
+* machine operations used by the emulation code in ops.c
+*
+* Carry Chain Calculation
+*
+* This represents a somewhat expensive calculation which is
+* apparently required to emulate the setting of the OF and AF flag.
+* The latter is not so important, but the former is. The overflow
+* flag is the XOR of the top two bits of the carry chain for an
+* addition (similar for subtraction). Since we do not want to
+* simulate the addition in a bitwise manner, we try to calculate the
+* carry chain given the two operands and the result.
+*
+* So, given the following table, which represents the addition of two
+* bits, we can derive a formula for the carry chain.
+*
+* a b cin r cout
+* 0 0 0 0 0
+* 0 0 1 1 0
+* 0 1 0 1 0
+* 0 1 1 0 1
+* 1 0 0 1 0
+* 1 0 1 0 1
+* 1 1 0 0 1
+* 1 1 1 1 1
+*
+* Construction of table for cout:
+*
+* ab
+* r \ 00 01 11 10
+* |------------------
+* 0 | 0 1 1 1
+* 1 | 0 0 1 0
+*
+* By inspection, one gets: cc = ab + r'(a + b)
+*
+* That represents alot of operations, but NO CHOICE....
+*
+* Borrow Chain Calculation.
+*
+* The following table represents the subtraction of two bits, from
+* which we can derive a formula for the borrow chain.
+*
+* a b bin r bout
+* 0 0 0 0 0
+* 0 0 1 1 1
+* 0 1 0 1 1
+* 0 1 1 0 1
+* 1 0 0 1 0
+* 1 0 1 0 0
+* 1 1 0 0 0
+* 1 1 1 1 1
+*
+* Construction of table for cout:
+*
+* ab
+* r \ 00 01 11 10
+* |------------------
+* 0 | 0 1 0 0
+* 1 | 1 1 1 0
+*
+* By inspection, one gets: bc = a'b + r(a' + b)
+*
+****************************************************************************/
+
+#include <stdlib.h>
+
+#define PRIM_OPS_NO_REDEFINE_ASM
+#include "x86emu/x86emui.h"
+
+#if defined(__GNUC__)
+#if defined (__i386__) || defined(__i386) || defined(__AMD64__) || defined(__amd64__)
+#include "x86emu/prim_x86_gcc.h"
+#endif
+#endif
+
+/*------------------------- Global Variables ------------------------------*/
+
+static u32 x86emu_parity_tab[8] = {
+ 0x96696996,
+ 0x69969669,
+ 0x69969669,
+ 0x96696996,
+ 0x69969669,
+ 0x96696996,
+ 0x96696996,
+ 0x69969669,
+};
+
+#define PARITY(x) (((x86emu_parity_tab[(x) / 32] >> ((x) % 32)) & 1) == 0)
+#define XOR2(x) (((x) ^ ((x)>>1)) & 0x1)
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+REMARKS:
+Implements the AAA instruction and side effects.
+****************************************************************************/
+u16
+aaa_word(u16 d)
+{
+ u16 res;
+
+ if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) {
+ d += 0x6;
+ d += 0x100;
+ SET_FLAG(F_AF);
+ SET_FLAG(F_CF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ }
+ res = (u16) (d & 0xFF0F);
+ CLEAR_FLAG(F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AAA instruction and side effects.
+****************************************************************************/
+u16
+aas_word(u16 d)
+{
+ u16 res;
+
+ if ((d & 0xf) > 0x9 || ACCESS_FLAG(F_AF)) {
+ d -= 0x6;
+ d -= 0x100;
+ SET_FLAG(F_AF);
+ SET_FLAG(F_CF);
+ }
+ else {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ }
+ res = (u16) (d & 0xFF0F);
+ CLEAR_FLAG(F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AAD instruction and side effects.
+****************************************************************************/
+u16
+aad_word(u16 d)
+{
+ u16 l;
+ u8 hb, lb;
+
+ hb = (u8) ((d >> 8) & 0xff);
+ lb = (u8) ((d & 0xff));
+ l = (u16) ((lb + 10 * hb) & 0xFF);
+
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CLEAR_FLAG(F_OF);
+ CONDITIONAL_SET_FLAG(l & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(l == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(l & 0xff), F_PF);
+ return l;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AAM instruction and side effects.
+****************************************************************************/
+u16
+aam_word(u8 d)
+{
+ u16 h, l;
+
+ h = (u16) (d / 10);
+ l = (u16) (d % 10);
+ l |= (u16) (h << 8);
+
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CLEAR_FLAG(F_OF);
+ CONDITIONAL_SET_FLAG(l & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(l == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(l & 0xff), F_PF);
+ return l;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADC instruction and side effects.
+****************************************************************************/
+u8
+adc_byte(u8 d, u8 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 cc;
+
+ if (ACCESS_FLAG(F_CF))
+ res = 1 + d + s;
+ else
+ res = d + s;
+
+ CONDITIONAL_SET_FLAG(res & 0x100, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = (s & d) | ((~res) & (s | d));
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADC instruction and side effects.
+****************************************************************************/
+u16
+adc_word(u16 d, u16 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 cc;
+
+ if (ACCESS_FLAG(F_CF))
+ res = 1 + d + s;
+ else
+ res = d + s;
+
+ CONDITIONAL_SET_FLAG(res & 0x10000, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = (s & d) | ((~res) & (s | d));
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADC instruction and side effects.
+****************************************************************************/
+u32
+adc_long(u32 d, u32 s)
+{
+ register u32 lo; /* all operands in native machine order */
+ register u32 hi;
+ register u32 res;
+ register u32 cc;
+
+ if (ACCESS_FLAG(F_CF)) {
+ lo = 1 + (d & 0xFFFF) + (s & 0xFFFF);
+ res = 1 + d + s;
+ }
+ else {
+ lo = (d & 0xFFFF) + (s & 0xFFFF);
+ res = d + s;
+ }
+ hi = (lo >> 16) + (d >> 16) + (s >> 16);
+
+ CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = (s & d) | ((~res) & (s | d));
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADD instruction and side effects.
+****************************************************************************/
+u8
+add_byte(u8 d, u8 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 cc;
+
+ res = d + s;
+ CONDITIONAL_SET_FLAG(res & 0x100, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = (s & d) | ((~res) & (s | d));
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADD instruction and side effects.
+****************************************************************************/
+u16
+add_word(u16 d, u16 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 cc;
+
+ res = d + s;
+ CONDITIONAL_SET_FLAG(res & 0x10000, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = (s & d) | ((~res) & (s | d));
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ADD instruction and side effects.
+****************************************************************************/
+u32
+add_long(u32 d, u32 s)
+{
+ register u32 lo; /* all operands in native machine order */
+ register u32 hi;
+ register u32 res;
+ register u32 cc;
+
+ lo = (d & 0xFFFF) + (s & 0xFFFF);
+ res = d + s;
+ hi = (lo >> 16) + (d >> 16) + (s >> 16);
+
+ CONDITIONAL_SET_FLAG(hi & 0x10000, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = (s & d) | ((~res) & (s | d));
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AND instruction and side effects.
+****************************************************************************/
+u8
+and_byte(u8 d, u8 s)
+{
+ register u8 res; /* all operands in native machine order */
+
+ res = d & s;
+
+ /* set the flags */
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res), F_PF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AND instruction and side effects.
+****************************************************************************/
+u16
+and_word(u16 d, u16 s)
+{
+ register u16 res; /* all operands in native machine order */
+
+ res = d & s;
+
+ /* set the flags */
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the AND instruction and side effects.
+****************************************************************************/
+u32
+and_long(u32 d, u32 s)
+{
+ register u32 res; /* all operands in native machine order */
+
+ res = d & s;
+
+ /* set the flags */
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the CMP instruction and side effects.
+****************************************************************************/
+u8
+cmp_byte(u8 d, u8 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - s;
+ CLEAR_FLAG(F_CF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x80, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return d;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the CMP instruction and side effects.
+****************************************************************************/
+u16
+cmp_word(u16 d, u16 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - s;
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return d;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the CMP instruction and side effects.
+****************************************************************************/
+u32
+cmp_long(u32 d, u32 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - s;
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return d;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DAA instruction and side effects.
+****************************************************************************/
+u8
+daa_byte(u8 d)
+{
+ u32 res = d;
+
+ if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) {
+ res += 6;
+ SET_FLAG(F_AF);
+ }
+ if (res > 0x9F || ACCESS_FLAG(F_CF)) {
+ res += 0x60;
+ SET_FLAG(F_CF);
+ }
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xFF) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DAS instruction and side effects.
+****************************************************************************/
+u8
+das_byte(u8 d)
+{
+ if ((d & 0xf) > 9 || ACCESS_FLAG(F_AF)) {
+ d -= 6;
+ SET_FLAG(F_AF);
+ }
+ if (d > 0x9F || ACCESS_FLAG(F_CF)) {
+ d -= 0x60;
+ SET_FLAG(F_CF);
+ }
+ CONDITIONAL_SET_FLAG(d & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(d == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(d & 0xff), F_PF);
+ return d;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DEC instruction and side effects.
+****************************************************************************/
+u8
+dec_byte(u8 d)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - 1;
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ /* based on sub_byte, uses s==1. */
+ bc = (res & (~d | 1)) | (~d & 1);
+ /* carry flag unchanged */
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DEC instruction and side effects.
+****************************************************************************/
+u16
+dec_word(u16 d)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - 1;
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ /* based on the sub_byte routine, with s==1 */
+ bc = (res & (~d | 1)) | (~d & 1);
+ /* carry flag unchanged */
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DEC instruction and side effects.
+****************************************************************************/
+u32
+dec_long(u32 d)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - 1;
+
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | 1)) | (~d & 1);
+ /* carry flag unchanged */
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the INC instruction and side effects.
+****************************************************************************/
+u8
+inc_byte(u8 d)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 cc;
+
+ res = d + 1;
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = ((1 & d) | (~res)) & (1 | d);
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 6), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the INC instruction and side effects.
+****************************************************************************/
+u16
+inc_word(u16 d)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 cc;
+
+ res = d + 1;
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = (1 & d) | ((~res) & (1 | d));
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 14), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the INC instruction and side effects.
+****************************************************************************/
+u32
+inc_long(u32 d)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 cc;
+
+ res = d + 1;
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the carry chain SEE NOTE AT TOP. */
+ cc = (1 & d) | ((~res) & (1 | d));
+ CONDITIONAL_SET_FLAG(XOR2(cc >> 30), F_OF);
+ CONDITIONAL_SET_FLAG(cc & 0x8, F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u8
+or_byte(u8 d, u8 s)
+{
+ register u8 res; /* all operands in native machine order */
+
+ res = d | s;
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res), F_PF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u16
+or_word(u16 d, u16 s)
+{
+ register u16 res; /* all operands in native machine order */
+
+ res = d | s;
+ /* set the carry flag to be bit 8 */
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u32
+or_long(u32 d, u32 s)
+{
+ register u32 res; /* all operands in native machine order */
+
+ res = d | s;
+
+ /* set the carry flag to be bit 8 */
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u8
+neg_byte(u8 s)
+{
+ register u8 res;
+ register u8 bc;
+
+ CONDITIONAL_SET_FLAG(s != 0, F_CF);
+ res = (u8) - s;
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res), F_PF);
+ /* calculate the borrow chain --- modified such that d=0.
+ substitutiing d=0 into bc= res&(~d|s)|(~d&s);
+ (the one used for sub) and simplifying, since ~d=0xff...,
+ ~d|s == 0xffff..., and res&0xfff... == res. Similarly
+ ~d&s == s. So the simplified result is: */
+ bc = res | s;
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u16
+neg_word(u16 s)
+{
+ register u16 res;
+ register u16 bc;
+
+ CONDITIONAL_SET_FLAG(s != 0, F_CF);
+ res = (u16) - s;
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain --- modified such that d=0.
+ substitutiing d=0 into bc= res&(~d|s)|(~d&s);
+ (the one used for sub) and simplifying, since ~d=0xff...,
+ ~d|s == 0xffff..., and res&0xfff... == res. Similarly
+ ~d&s == s. So the simplified result is: */
+ bc = res | s;
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OR instruction and side effects.
+****************************************************************************/
+u32
+neg_long(u32 s)
+{
+ register u32 res;
+ register u32 bc;
+
+ CONDITIONAL_SET_FLAG(s != 0, F_CF);
+ res = (u32) - s;
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain --- modified such that d=0.
+ substitutiing d=0 into bc= res&(~d|s)|(~d&s);
+ (the one used for sub) and simplifying, since ~d=0xff...,
+ ~d|s == 0xffff..., and res&0xfff... == res. Similarly
+ ~d&s == s. So the simplified result is: */
+ bc = res | s;
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the NOT instruction and side effects.
+****************************************************************************/
+u8
+not_byte(u8 s)
+{
+ return ~s;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the NOT instruction and side effects.
+****************************************************************************/
+u16
+not_word(u16 s)
+{
+ return ~s;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the NOT instruction and side effects.
+****************************************************************************/
+u32
+not_long(u32 s)
+{
+ return ~s;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCL instruction and side effects.
+****************************************************************************/
+u8
+rcl_byte(u8 d, u8 s)
+{
+ register unsigned int res, cnt, mask, cf;
+
+ /* s is the rotate distance. It varies from 0 - 8. */
+ /* have
+
+ CF B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0
+
+ want to rotate through the carry by "s" bits. We could
+ loop, but that's inefficient. So the width is 9,
+ and we split into three parts:
+
+ The new carry flag (was B_n)
+ the stuff in B_n-1 .. B_0
+ the stuff in B_7 .. B_n+1
+
+ The new rotate is done mod 9, and given this,
+ for a rotation of n bits (mod 9) the new carry flag is
+ then located n bits from the MSB. The low part is
+ then shifted up cnt bits, and the high part is or'd
+ in. Using CAPS for new values, and lowercase for the
+ original values, this can be expressed as:
+
+ IF n > 0
+ 1) CF <- b_(8-n)
+ 2) B_(7) .. B_(n) <- b_(8-(n+1)) .. b_0
+ 3) B_(n-1) <- cf
+ 4) B_(n-2) .. B_0 <- b_7 .. b_(8-(n-1))
+ */
+ res = d;
+ if ((cnt = s % 9) != 0) {
+ /* extract the new CARRY FLAG. */
+ /* CF <- b_(8-n) */
+ cf = (d >> (8 - cnt)) & 0x1;
+
+ /* get the low stuff which rotated
+ into the range B_7 .. B_cnt */
+ /* B_(7) .. B_(n) <- b_(8-(n+1)) .. b_0 */
+ /* note that the right hand side done by the mask */
+ res = (d << cnt) & 0xff;
+
+ /* now the high stuff which rotated around
+ into the positions B_cnt-2 .. B_0 */
+ /* B_(n-2) .. B_0 <- b_7 .. b_(8-(n-1)) */
+ /* shift it downward, 7-(n-2) = 9-n positions.
+ and mask off the result before or'ing in.
+ */
+ mask = (1 << (cnt - 1)) - 1;
+ res |= (d >> (9 - cnt)) & mask;
+
+ /* if the carry flag was set, or it in. */
+ if (ACCESS_FLAG(F_CF)) { /* carry flag is set */
+ /* B_(n-1) <- cf */
+ res |= 1 << (cnt - 1);
+ }
+ /* set the new carry flag, based on the variable "cf" */
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ /* OVERFLOW is set *IFF* cnt==1, then it is the
+ xor of CF and the most significant bit. Blecck. */
+ /* parenthesized this expression since it appears to
+ be causing OF to be misset */
+ CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 6) & 0x2)), F_OF);
+
+ }
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCL instruction and side effects.
+****************************************************************************/
+u16
+rcl_word(u16 d, u8 s)
+{
+ register unsigned int res, cnt, mask, cf;
+
+ res = d;
+ if ((cnt = s % 17) != 0) {
+ cf = (d >> (16 - cnt)) & 0x1;
+ res = (d << cnt) & 0xffff;
+ mask = (1 << (cnt - 1)) - 1;
+ res |= (d >> (17 - cnt)) & mask;
+ if (ACCESS_FLAG(F_CF)) {
+ res |= 1 << (cnt - 1);
+ }
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 14) & 0x2)), F_OF);
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCL instruction and side effects.
+****************************************************************************/
+u32
+rcl_long(u32 d, u8 s)
+{
+ register u32 res, cnt, mask, cf;
+
+ res = d;
+ if ((cnt = s % 33) != 0) {
+ cf = (d >> (32 - cnt)) & 0x1;
+ res = (d << cnt) & 0xffffffff;
+ mask = (1 << (cnt - 1)) - 1;
+ res |= (d >> (33 - cnt)) & mask;
+ if (ACCESS_FLAG(F_CF)) { /* carry flag is set */
+ res |= 1 << (cnt - 1);
+ }
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG(cnt == 1 && XOR2(cf + ((res >> 30) & 0x2)), F_OF);
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCR instruction and side effects.
+****************************************************************************/
+u8
+rcr_byte(u8 d, u8 s)
+{
+ u32 res, cnt;
+ u32 mask, cf, ocf = 0;
+
+ /* rotate right through carry */
+ /*
+ s is the rotate distance. It varies from 0 - 8.
+ d is the byte object rotated.
+
+ have
+
+ CF B_7 B_6 B_5 B_4 B_3 B_2 B_1 B_0
+
+ The new rotate is done mod 9, and given this,
+ for a rotation of n bits (mod 9) the new carry flag is
+ then located n bits from the LSB. The low part is
+ then shifted up cnt bits, and the high part is or'd
+ in. Using CAPS for new values, and lowercase for the
+ original values, this can be expressed as:
+
+ IF n > 0
+ 1) CF <- b_(n-1)
+ 2) B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n)
+ 3) B_(8-n) <- cf
+ 4) B_(7) .. B_(8-(n-1)) <- b_(n-2) .. b_(0)
+ */
+ res = d;
+ if ((cnt = s % 9) != 0) {
+ /* extract the new CARRY FLAG. */
+ /* CF <- b_(n-1) */
+ if (cnt == 1) {
+ cf = d & 0x1;
+ /* note hackery here. Access_flag(..) evaluates to either
+ 0 if flag not set
+ non-zero if flag is set.
+ doing access_flag(..) != 0 casts that into either
+ 0..1 in any representation of the flags register
+ (i.e. packed bit array or unpacked.)
+ */
+ ocf = ACCESS_FLAG(F_CF) != 0;
+ }
+ else
+ cf = (d >> (cnt - 1)) & 0x1;
+
+ /* B_(8-(n+1)) .. B_(0) <- b_(7) .. b_n */
+ /* note that the right hand side done by the mask
+ This is effectively done by shifting the
+ object to the right. The result must be masked,
+ in case the object came in and was treated
+ as a negative number. Needed??? */
+
+ mask = (1 << (8 - cnt)) - 1;
+ res = (d >> cnt) & mask;
+
+ /* now the high stuff which rotated around
+ into the positions B_cnt-2 .. B_0 */
+ /* B_(7) .. B_(8-(n-1)) <- b_(n-2) .. b_(0) */
+ /* shift it downward, 7-(n-2) = 9-n positions.
+ and mask off the result before or'ing in.
+ */
+ res |= (d << (9 - cnt));
+
+ /* if the carry flag was set, or it in. */
+ if (ACCESS_FLAG(F_CF)) { /* carry flag is set */
+ /* B_(8-n) <- cf */
+ res |= 1 << (8 - cnt);
+ }
+ /* set the new carry flag, based on the variable "cf" */
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ /* OVERFLOW is set *IFF* cnt==1, then it is the
+ xor of CF and the most significant bit. Blecck. */
+ /* parenthesized... */
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 6) & 0x2)), F_OF);
+ }
+ }
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCR instruction and side effects.
+****************************************************************************/
+u16
+rcr_word(u16 d, u8 s)
+{
+ u32 res, cnt;
+ u32 mask, cf, ocf = 0;
+
+ /* rotate right through carry */
+ res = d;
+ if ((cnt = s % 17) != 0) {
+ if (cnt == 1) {
+ cf = d & 0x1;
+ ocf = ACCESS_FLAG(F_CF) != 0;
+ }
+ else
+ cf = (d >> (cnt - 1)) & 0x1;
+ mask = (1 << (16 - cnt)) - 1;
+ res = (d >> cnt) & mask;
+ res |= (d << (17 - cnt));
+ if (ACCESS_FLAG(F_CF)) {
+ res |= 1 << (16 - cnt);
+ }
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 14) & 0x2)), F_OF);
+ }
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the RCR instruction and side effects.
+****************************************************************************/
+u32
+rcr_long(u32 d, u8 s)
+{
+ u32 res, cnt;
+ u32 mask, cf, ocf = 0;
+
+ /* rotate right through carry */
+ res = d;
+ if ((cnt = s % 33) != 0) {
+ if (cnt == 1) {
+ cf = d & 0x1;
+ ocf = ACCESS_FLAG(F_CF) != 0;
+ }
+ else
+ cf = (d >> (cnt - 1)) & 0x1;
+ mask = (1 << (32 - cnt)) - 1;
+ res = (d >> cnt) & mask;
+ if (cnt != 1)
+ res |= (d << (33 - cnt));
+ if (ACCESS_FLAG(F_CF)) { /* carry flag is set */
+ res |= 1 << (32 - cnt);
+ }
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG(XOR2(ocf + ((d >> 30) & 0x2)), F_OF);
+ }
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROL instruction and side effects.
+****************************************************************************/
+u8
+rol_byte(u8 d, u8 s)
+{
+ register unsigned int res, cnt, mask;
+
+ /* rotate left */
+ /*
+ s is the rotate distance. It varies from 0 - 8.
+ d is the byte object rotated.
+
+ have
+
+ CF B_7 ... B_0
+
+ The new rotate is done mod 8.
+ Much simpler than the "rcl" or "rcr" operations.
+
+ IF n > 0
+ 1) B_(7) .. B_(n) <- b_(8-(n+1)) .. b_(0)
+ 2) B_(n-1) .. B_(0) <- b_(7) .. b_(8-n)
+ */
+ res = d;
+ if ((cnt = s % 8) != 0) {
+ /* B_(7) .. B_(n) <- b_(8-(n+1)) .. b_(0) */
+ res = (d << cnt);
+
+ /* B_(n-1) .. B_(0) <- b_(7) .. b_(8-n) */
+ mask = (1 << cnt) - 1;
+ res |= (d >> (8 - cnt)) & mask;
+
+ /* set the new carry flag, Note that it is the low order
+ bit of the result!!! */
+ CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+ /* OVERFLOW is set *IFF* s==1, then it is the
+ xor of CF and the most significant bit. Blecck. */
+ CONDITIONAL_SET_FLAG(s == 1 &&
+ XOR2((res & 0x1) + ((res >> 6) & 0x2)), F_OF);
+ }
+ if (s != 0) {
+ /* set the new carry flag, Note that it is the low order
+ bit of the result!!! */
+ CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+ }
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROL instruction and side effects.
+****************************************************************************/
+u16
+rol_word(u16 d, u8 s)
+{
+ register unsigned int res, cnt, mask;
+
+ res = d;
+ if ((cnt = s % 16) != 0) {
+ res = (d << cnt);
+ mask = (1 << cnt) - 1;
+ res |= (d >> (16 - cnt)) & mask;
+ CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+ CONDITIONAL_SET_FLAG(s == 1 &&
+ XOR2((res & 0x1) + ((res >> 14) & 0x2)), F_OF);
+ }
+ if (s != 0) {
+ /* set the new carry flag, Note that it is the low order
+ bit of the result!!! */
+ CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROL instruction and side effects.
+****************************************************************************/
+u32
+rol_long(u32 d, u8 s)
+{
+ register u32 res, cnt, mask;
+
+ res = d;
+ if ((cnt = s % 32) != 0) {
+ res = (d << cnt);
+ mask = (1 << cnt) - 1;
+ res |= (d >> (32 - cnt)) & mask;
+ CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+ CONDITIONAL_SET_FLAG(s == 1 &&
+ XOR2((res & 0x1) + ((res >> 30) & 0x2)), F_OF);
+ }
+ if (s != 0) {
+ /* set the new carry flag, Note that it is the low order
+ bit of the result!!! */
+ CONDITIONAL_SET_FLAG(res & 0x1, F_CF);
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROR instruction and side effects.
+****************************************************************************/
+u8
+ror_byte(u8 d, u8 s)
+{
+ register unsigned int res, cnt, mask;
+
+ /* rotate right */
+ /*
+ s is the rotate distance. It varies from 0 - 8.
+ d is the byte object rotated.
+
+ have
+
+ B_7 ... B_0
+
+ The rotate is done mod 8.
+
+ IF n > 0
+ 1) B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n)
+ 2) B_(7) .. B_(8-n) <- b_(n-1) .. b_(0)
+ */
+ res = d;
+ if ((cnt = s % 8) != 0) { /* not a typo, do nada if cnt==0 */
+ /* B_(7) .. B_(8-n) <- b_(n-1) .. b_(0) */
+ res = (d << (8 - cnt));
+
+ /* B_(8-(n+1)) .. B_(0) <- b_(7) .. b_(n) */
+ mask = (1 << (8 - cnt)) - 1;
+ res |= (d >> (cnt)) & mask;
+
+ /* set the new carry flag, Note that it is the low order
+ bit of the result!!! */
+ CONDITIONAL_SET_FLAG(res & 0x80, F_CF);
+ /* OVERFLOW is set *IFF* s==1, then it is the
+ xor of the two most significant bits. Blecck. */
+ CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 6), F_OF);
+ }
+ else if (s != 0) {
+ /* set the new carry flag, Note that it is the low order
+ bit of the result!!! */
+ CONDITIONAL_SET_FLAG(res & 0x80, F_CF);
+ }
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROR instruction and side effects.
+****************************************************************************/
+u16
+ror_word(u16 d, u8 s)
+{
+ register unsigned int res, cnt, mask;
+
+ res = d;
+ if ((cnt = s % 16) != 0) {
+ res = (d << (16 - cnt));
+ mask = (1 << (16 - cnt)) - 1;
+ res |= (d >> (cnt)) & mask;
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_CF);
+ CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 14), F_OF);
+ }
+ else if (s != 0) {
+ /* set the new carry flag, Note that it is the low order
+ bit of the result!!! */
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_CF);
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the ROR instruction and side effects.
+****************************************************************************/
+u32
+ror_long(u32 d, u8 s)
+{
+ register u32 res, cnt, mask;
+
+ res = d;
+ if ((cnt = s % 32) != 0) {
+ res = (d << (32 - cnt));
+ mask = (1 << (32 - cnt)) - 1;
+ res |= (d >> (cnt)) & mask;
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF);
+ CONDITIONAL_SET_FLAG(s == 1 && XOR2(res >> 30), F_OF);
+ }
+ else if (s != 0) {
+ /* set the new carry flag, Note that it is the low order
+ bit of the result!!! */
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_CF);
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHL instruction and side effects.
+****************************************************************************/
+u8
+shl_byte(u8 d, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 8) {
+ cnt = s % 8;
+
+ /* last bit shifted out goes into carry flag */
+ if (cnt > 0) {
+ res = d << cnt;
+ cf = d & (1 << (8 - cnt));
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = (u8) d;
+ }
+
+ if (cnt == 1) {
+ /* Needs simplification. */
+ CONDITIONAL_SET_FLAG((((res & 0x80) == 0x80) ^
+ (ACCESS_FLAG(F_CF) != 0)),
+ /* was (M.x86.R_FLG&F_CF)==F_CF)), */
+ F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80, F_CF);
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ SET_FLAG(F_ZF);
+ }
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHL instruction and side effects.
+****************************************************************************/
+u16
+shl_word(u16 d, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 16) {
+ cnt = s % 16;
+ if (cnt > 0) {
+ res = d << cnt;
+ cf = d & (1 << (16 - cnt));
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = (u16) d;
+ }
+
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG((((res & 0x8000) == 0x8000) ^
+ (ACCESS_FLAG(F_CF) != 0)), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x8000, F_CF);
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ SET_FLAG(F_ZF);
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHL instruction and side effects.
+****************************************************************************/
+u32
+shl_long(u32 d, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 32) {
+ cnt = s % 32;
+ if (cnt > 0) {
+ res = d << cnt;
+ cf = d & (1 << (32 - cnt));
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = d;
+ }
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^
+ (ACCESS_FLAG(F_CF) != 0)), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80000000, F_CF);
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ SET_FLAG(F_ZF);
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHR instruction and side effects.
+****************************************************************************/
+u8
+shr_byte(u8 d, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 8) {
+ cnt = s % 8;
+ if (cnt > 0) {
+ cf = d & (1 << (cnt - 1));
+ res = d >> cnt;
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = (u8) d;
+ }
+
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG(XOR2(res >> 6), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CONDITIONAL_SET_FLAG((d >> (s - 1)) & 0x1, F_CF);
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ SET_FLAG(F_ZF);
+ }
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHR instruction and side effects.
+****************************************************************************/
+u16
+shr_word(u16 d, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 16) {
+ cnt = s % 16;
+ if (cnt > 0) {
+ cf = d & (1 << (cnt - 1));
+ res = d >> cnt;
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = d;
+ }
+
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ SET_FLAG(F_ZF);
+ CLEAR_FLAG(F_SF);
+ CLEAR_FLAG(F_PF);
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHR instruction and side effects.
+****************************************************************************/
+u32
+shr_long(u32 d, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 32) {
+ cnt = s % 32;
+ if (cnt > 0) {
+ cf = d & (1 << (cnt - 1));
+ res = d >> cnt;
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = d;
+ }
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ SET_FLAG(F_ZF);
+ CLEAR_FLAG(F_SF);
+ CLEAR_FLAG(F_PF);
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SAR instruction and side effects.
+****************************************************************************/
+u8
+sar_byte(u8 d, u8 s)
+{
+ unsigned int cnt, res, cf, mask, sf;
+
+ res = d;
+ sf = d & 0x80;
+ cnt = s % 8;
+ if (cnt > 0 && cnt < 8) {
+ mask = (1 << (8 - cnt)) - 1;
+ cf = d & (1 << (cnt - 1));
+ res = (d >> cnt) & mask;
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ if (sf) {
+ res |= ~mask;
+ }
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ }
+ else if (cnt >= 8) {
+ if (sf) {
+ res = 0xff;
+ SET_FLAG(F_CF);
+ CLEAR_FLAG(F_ZF);
+ SET_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ }
+ else {
+ res = 0;
+ CLEAR_FLAG(F_CF);
+ SET_FLAG(F_ZF);
+ CLEAR_FLAG(F_SF);
+ CLEAR_FLAG(F_PF);
+ }
+ }
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SAR instruction and side effects.
+****************************************************************************/
+u16
+sar_word(u16 d, u8 s)
+{
+ unsigned int cnt, res, cf, mask, sf;
+
+ sf = d & 0x8000;
+ cnt = s % 16;
+ res = d;
+ if (cnt > 0 && cnt < 16) {
+ mask = (1 << (16 - cnt)) - 1;
+ cf = d & (1 << (cnt - 1));
+ res = (d >> cnt) & mask;
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ if (sf) {
+ res |= ~mask;
+ }
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else if (cnt >= 16) {
+ if (sf) {
+ res = 0xffff;
+ SET_FLAG(F_CF);
+ CLEAR_FLAG(F_ZF);
+ SET_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ }
+ else {
+ res = 0;
+ CLEAR_FLAG(F_CF);
+ SET_FLAG(F_ZF);
+ CLEAR_FLAG(F_SF);
+ CLEAR_FLAG(F_PF);
+ }
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SAR instruction and side effects.
+****************************************************************************/
+u32
+sar_long(u32 d, u8 s)
+{
+ u32 cnt, res, cf, mask, sf;
+
+ sf = d & 0x80000000;
+ cnt = s % 32;
+ res = d;
+ if (cnt > 0 && cnt < 32) {
+ mask = (1 << (32 - cnt)) - 1;
+ cf = d & (1 << (cnt - 1));
+ res = (d >> cnt) & mask;
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ if (sf) {
+ res |= ~mask;
+ }
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else if (cnt >= 32) {
+ if (sf) {
+ res = 0xffffffff;
+ SET_FLAG(F_CF);
+ CLEAR_FLAG(F_ZF);
+ SET_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ }
+ else {
+ res = 0;
+ CLEAR_FLAG(F_CF);
+ SET_FLAG(F_ZF);
+ CLEAR_FLAG(F_SF);
+ CLEAR_FLAG(F_PF);
+ }
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHLD instruction and side effects.
+****************************************************************************/
+u16
+shld_word(u16 d, u16 fill, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 16) {
+ cnt = s % 16;
+ if (cnt > 0) {
+ res = (d << cnt) | (fill >> (16 - cnt));
+ cf = d & (1 << (16 - cnt));
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = d;
+ }
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG((((res & 0x8000) == 0x8000) ^
+ (ACCESS_FLAG(F_CF) != 0)), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x8000, F_CF);
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ SET_FLAG(F_ZF);
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHLD instruction and side effects.
+****************************************************************************/
+u32
+shld_long(u32 d, u32 fill, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 32) {
+ cnt = s % 32;
+ if (cnt > 0) {
+ res = (d << cnt) | (fill >> (32 - cnt));
+ cf = d & (1 << (32 - cnt));
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = d;
+ }
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG((((res & 0x80000000) == 0x80000000) ^
+ (ACCESS_FLAG(F_CF) != 0)), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CONDITIONAL_SET_FLAG((d << (s - 1)) & 0x80000000, F_CF);
+ CLEAR_FLAG(F_OF);
+ CLEAR_FLAG(F_SF);
+ SET_FLAG(F_PF);
+ SET_FLAG(F_ZF);
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHRD instruction and side effects.
+****************************************************************************/
+u16
+shrd_word(u16 d, u16 fill, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 16) {
+ cnt = s % 16;
+ if (cnt > 0) {
+ cf = d & (1 << (cnt - 1));
+ res = (d >> cnt) | (fill << (16 - cnt));
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = d;
+ }
+
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG(XOR2(res >> 14), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ SET_FLAG(F_ZF);
+ CLEAR_FLAG(F_SF);
+ CLEAR_FLAG(F_PF);
+ }
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SHRD instruction and side effects.
+****************************************************************************/
+u32
+shrd_long(u32 d, u32 fill, u8 s)
+{
+ unsigned int cnt, res, cf;
+
+ if (s < 32) {
+ cnt = s % 32;
+ if (cnt > 0) {
+ cf = d & (1 << (cnt - 1));
+ res = (d >> cnt) | (fill << (32 - cnt));
+ CONDITIONAL_SET_FLAG(cf, F_CF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ }
+ else {
+ res = d;
+ }
+ if (cnt == 1) {
+ CONDITIONAL_SET_FLAG(XOR2(res >> 30), F_OF);
+ }
+ else {
+ CLEAR_FLAG(F_OF);
+ }
+ }
+ else {
+ res = 0;
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ SET_FLAG(F_ZF);
+ CLEAR_FLAG(F_SF);
+ CLEAR_FLAG(F_PF);
+ }
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SBB instruction and side effects.
+****************************************************************************/
+u8
+sbb_byte(u8 d, u8 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ if (ACCESS_FLAG(F_CF))
+ res = d - s - 1;
+ else
+ res = d - s;
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x80, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SBB instruction and side effects.
+****************************************************************************/
+u16
+sbb_word(u16 d, u16 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ if (ACCESS_FLAG(F_CF))
+ res = d - s - 1;
+ else
+ res = d - s;
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SBB instruction and side effects.
+****************************************************************************/
+u32
+sbb_long(u32 d, u32 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ if (ACCESS_FLAG(F_CF))
+ res = d - s - 1;
+ else
+ res = d - s;
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SUB instruction and side effects.
+****************************************************************************/
+u8
+sub_byte(u8 d, u8 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - s;
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x80, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 6), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return (u8) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SUB instruction and side effects.
+****************************************************************************/
+u16
+sub_word(u16 d, u16 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - s;
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x8000, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 14), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return (u16) res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the SUB instruction and side effects.
+****************************************************************************/
+u32
+sub_long(u32 d, u32 s)
+{
+ register u32 res; /* all operands in native machine order */
+ register u32 bc;
+
+ res = d - s;
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG((res & 0xffffffff) == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+
+ /* calculate the borrow chain. See note at top */
+ bc = (res & (~d | s)) | (~d & s);
+ CONDITIONAL_SET_FLAG(bc & 0x80000000, F_CF);
+ CONDITIONAL_SET_FLAG(XOR2(bc >> 30), F_OF);
+ CONDITIONAL_SET_FLAG(bc & 0x8, F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the TEST instruction and side effects.
+****************************************************************************/
+void
+test_byte(u8 d, u8 s)
+{
+ register u32 res; /* all operands in native machine order */
+
+ res = d & s;
+
+ CLEAR_FLAG(F_OF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ /* AF == dont care */
+ CLEAR_FLAG(F_CF);
+}
+
+/****************************************************************************
+REMARKS:
+Implements the TEST instruction and side effects.
+****************************************************************************/
+void
+test_word(u16 d, u16 s)
+{
+ register u32 res; /* all operands in native machine order */
+
+ res = d & s;
+
+ CLEAR_FLAG(F_OF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ /* AF == dont care */
+ CLEAR_FLAG(F_CF);
+}
+
+/****************************************************************************
+REMARKS:
+Implements the TEST instruction and side effects.
+****************************************************************************/
+void
+test_long(u32 d, u32 s)
+{
+ register u32 res; /* all operands in native machine order */
+
+ res = d & s;
+
+ CLEAR_FLAG(F_OF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ /* AF == dont care */
+ CLEAR_FLAG(F_CF);
+}
+
+/****************************************************************************
+REMARKS:
+Implements the XOR instruction and side effects.
+****************************************************************************/
+u8
+xor_byte(u8 d, u8 s)
+{
+ register u8 res; /* all operands in native machine order */
+
+ res = d ^ s;
+ CLEAR_FLAG(F_OF);
+ CONDITIONAL_SET_FLAG(res & 0x80, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res), F_PF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the XOR instruction and side effects.
+****************************************************************************/
+u16
+xor_word(u16 d, u16 s)
+{
+ register u16 res; /* all operands in native machine order */
+
+ res = d ^ s;
+ CLEAR_FLAG(F_OF);
+ CONDITIONAL_SET_FLAG(res & 0x8000, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the XOR instruction and side effects.
+****************************************************************************/
+u32
+xor_long(u32 d, u32 s)
+{
+ register u32 res; /* all operands in native machine order */
+
+ res = d ^ s;
+ CLEAR_FLAG(F_OF);
+ CONDITIONAL_SET_FLAG(res & 0x80000000, F_SF);
+ CONDITIONAL_SET_FLAG(res == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(res & 0xff), F_PF);
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IMUL instruction and side effects.
+****************************************************************************/
+void
+imul_byte(u8 s)
+{
+ s16 res = (s16) ((s8) M.x86.R_AL * (s8) s);
+
+ M.x86.R_AX = res;
+ if (((M.x86.R_AL & 0x80) == 0 && M.x86.R_AH == 0x00) ||
+ ((M.x86.R_AL & 0x80) != 0 && M.x86.R_AH == 0xFF)) {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ else {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IMUL instruction and side effects.
+****************************************************************************/
+void
+imul_word(u16 s)
+{
+ s32 res = (s16) M.x86.R_AX * (s16) s;
+
+ M.x86.R_AX = (u16) res;
+ M.x86.R_DX = (u16) (res >> 16);
+ if (((M.x86.R_AX & 0x8000) == 0 && M.x86.R_DX == 0x00) ||
+ ((M.x86.R_AX & 0x8000) != 0 && M.x86.R_DX == 0xFF)) {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ else {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IMUL instruction and side effects.
+****************************************************************************/
+void
+imul_long_direct(u32 * res_lo, u32 * res_hi, u32 d, u32 s)
+{
+#ifdef __HAS_LONG_LONG__
+ s64 res = (s64) (s32) d * (s32) s;
+
+ *res_lo = (u32) res;
+ *res_hi = (u32) (res >> 32);
+#else
+ u32 d_lo, d_hi, d_sign;
+ u32 s_lo, s_hi, s_sign;
+ u32 rlo_lo, rlo_hi, rhi_lo;
+
+ if ((d_sign = d & 0x80000000) != 0)
+ d = -d;
+ d_lo = d & 0xFFFF;
+ d_hi = d >> 16;
+ if ((s_sign = s & 0x80000000) != 0)
+ s = -s;
+ s_lo = s & 0xFFFF;
+ s_hi = s >> 16;
+ rlo_lo = d_lo * s_lo;
+ rlo_hi = (d_hi * s_lo + d_lo * s_hi) + (rlo_lo >> 16);
+ rhi_lo = d_hi * s_hi + (rlo_hi >> 16);
+ *res_lo = (rlo_hi << 16) | (rlo_lo & 0xFFFF);
+ *res_hi = rhi_lo;
+ if (d_sign != s_sign) {
+ d = ~*res_lo;
+ s = (((d & 0xFFFF) + 1) >> 16) + (d >> 16);
+ *res_lo = ~*res_lo + 1;
+ *res_hi = ~*res_hi + (s >> 16);
+ }
+#endif
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IMUL instruction and side effects.
+****************************************************************************/
+void
+imul_long(u32 s)
+{
+ imul_long_direct(&M.x86.R_EAX, &M.x86.R_EDX, M.x86.R_EAX, s);
+ if (((M.x86.R_EAX & 0x80000000) == 0 && M.x86.R_EDX == 0x00) ||
+ ((M.x86.R_EAX & 0x80000000) != 0 && M.x86.R_EDX == 0xFF)) {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ else {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+}
+
+/****************************************************************************
+REMARKS:
+Implements the MUL instruction and side effects.
+****************************************************************************/
+void
+mul_byte(u8 s)
+{
+ u16 res = (u16) (M.x86.R_AL * s);
+
+ M.x86.R_AX = res;
+ if (M.x86.R_AH == 0) {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ else {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+}
+
+/****************************************************************************
+REMARKS:
+Implements the MUL instruction and side effects.
+****************************************************************************/
+void
+mul_word(u16 s)
+{
+ u32 res = M.x86.R_AX * s;
+
+ M.x86.R_AX = (u16) res;
+ M.x86.R_DX = (u16) (res >> 16);
+ if (M.x86.R_DX == 0) {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ else {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+}
+
+/****************************************************************************
+REMARKS:
+Implements the MUL instruction and side effects.
+****************************************************************************/
+void
+mul_long(u32 s)
+{
+#ifdef __HAS_LONG_LONG__
+ u64 res = (u64) M.x86.R_EAX * s;
+
+ M.x86.R_EAX = (u32) res;
+ M.x86.R_EDX = (u32) (res >> 32);
+#else
+ u32 a, a_lo, a_hi;
+ u32 s_lo, s_hi;
+ u32 rlo_lo, rlo_hi, rhi_lo;
+
+ a = M.x86.R_EAX;
+ a_lo = a & 0xFFFF;
+ a_hi = a >> 16;
+ s_lo = s & 0xFFFF;
+ s_hi = s >> 16;
+ rlo_lo = a_lo * s_lo;
+ rlo_hi = (a_hi * s_lo + a_lo * s_hi) + (rlo_lo >> 16);
+ rhi_lo = a_hi * s_hi + (rlo_hi >> 16);
+ M.x86.R_EAX = (rlo_hi << 16) | (rlo_lo & 0xFFFF);
+ M.x86.R_EDX = rhi_lo;
+#endif
+
+ if (M.x86.R_EDX == 0) {
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_OF);
+ }
+ else {
+ SET_FLAG(F_CF);
+ SET_FLAG(F_OF);
+ }
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IDIV instruction and side effects.
+****************************************************************************/
+void
+idiv_byte(u8 s)
+{
+ s32 dvd, div, mod;
+
+ dvd = (s16) M.x86.R_AX;
+ if (s == 0) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ div = dvd / (s8) s;
+ mod = dvd % (s8) s;
+ if (abs(div) > 0x7f) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ M.x86.R_AL = (s8) div;
+ M.x86.R_AH = (s8) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IDIV instruction and side effects.
+****************************************************************************/
+void
+idiv_word(u16 s)
+{
+ s32 dvd, div, mod;
+
+ dvd = (((s32) M.x86.R_DX) << 16) | M.x86.R_AX;
+ if (s == 0) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ div = dvd / (s16) s;
+ mod = dvd % (s16) s;
+ if (abs(div) > 0x7fff) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_SF);
+ CONDITIONAL_SET_FLAG(div == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF);
+
+ M.x86.R_AX = (u16) div;
+ M.x86.R_DX = (u16) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IDIV instruction and side effects.
+****************************************************************************/
+void
+idiv_long(u32 s)
+{
+#ifdef __HAS_LONG_LONG__
+ s64 dvd, div, mod;
+
+ dvd = (((s64) M.x86.R_EDX) << 32) | M.x86.R_EAX;
+ if (s == 0) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ div = dvd / (s32) s;
+ mod = dvd % (s32) s;
+ if (abs(div) > 0x7fffffff) {
+ x86emu_intr_raise(0);
+ return;
+ }
+#else
+ s32 div = 0, mod;
+ s32 h_dvd = M.x86.R_EDX;
+ u32 l_dvd = M.x86.R_EAX;
+ u32 abs_s = s & 0x7FFFFFFF;
+ u32 abs_h_dvd = h_dvd & 0x7FFFFFFF;
+ u32 h_s = abs_s >> 1;
+ u32 l_s = abs_s << 31;
+ int counter = 31;
+ int carry;
+
+ if (s == 0) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ do {
+ div <<= 1;
+ carry = (l_dvd >= l_s) ? 0 : 1;
+
+ if (abs_h_dvd < (h_s + carry)) {
+ h_s >>= 1;
+ l_s = abs_s << (--counter);
+ continue;
+ }
+ else {
+ abs_h_dvd -= (h_s + carry);
+ l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1)
+ : (l_dvd - l_s);
+ h_s >>= 1;
+ l_s = abs_s << (--counter);
+ div |= 1;
+ continue;
+ }
+
+ } while (counter > -1);
+ /* overflow */
+ if (abs_h_dvd || (l_dvd > abs_s)) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ /* sign */
+ div |= ((h_dvd & 0x10000000) ^ (s & 0x10000000));
+ mod = l_dvd;
+
+#endif
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CLEAR_FLAG(F_SF);
+ SET_FLAG(F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF);
+
+ M.x86.R_EAX = (u32) div;
+ M.x86.R_EDX = (u32) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DIV instruction and side effects.
+****************************************************************************/
+void
+div_byte(u8 s)
+{
+ u32 dvd, div, mod;
+
+ dvd = M.x86.R_AX;
+ if (s == 0) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ div = dvd / (u8) s;
+ mod = dvd % (u8) s;
+ if (abs(div) > 0xff) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ M.x86.R_AL = (u8) div;
+ M.x86.R_AH = (u8) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DIV instruction and side effects.
+****************************************************************************/
+void
+div_word(u16 s)
+{
+ u32 dvd, div, mod;
+
+ dvd = (((u32) M.x86.R_DX) << 16) | M.x86.R_AX;
+ if (s == 0) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ div = dvd / (u16) s;
+ mod = dvd % (u16) s;
+ if (abs(div) > 0xffff) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_SF);
+ CONDITIONAL_SET_FLAG(div == 0, F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF);
+
+ M.x86.R_AX = (u16) div;
+ M.x86.R_DX = (u16) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the DIV instruction and side effects.
+****************************************************************************/
+void
+div_long(u32 s)
+{
+#ifdef __HAS_LONG_LONG__
+ u64 dvd, div, mod;
+
+ dvd = (((u64) M.x86.R_EDX) << 32) | M.x86.R_EAX;
+ if (s == 0) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ div = dvd / (u32) s;
+ mod = dvd % (u32) s;
+ if (abs(div) > 0xffffffff) {
+ x86emu_intr_raise(0);
+ return;
+ }
+#else
+ s32 div = 0, mod;
+ s32 h_dvd = M.x86.R_EDX;
+ u32 l_dvd = M.x86.R_EAX;
+
+ u32 h_s = s;
+ u32 l_s = 0;
+ int counter = 32;
+ int carry;
+
+ if (s == 0) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ do {
+ div <<= 1;
+ carry = (l_dvd >= l_s) ? 0 : 1;
+
+ if (h_dvd < (h_s + carry)) {
+ h_s >>= 1;
+ l_s = s << (--counter);
+ continue;
+ }
+ else {
+ h_dvd -= (h_s + carry);
+ l_dvd = carry ? ((0xFFFFFFFF - l_s) + l_dvd + 1)
+ : (l_dvd - l_s);
+ h_s >>= 1;
+ l_s = s << (--counter);
+ div |= 1;
+ continue;
+ }
+
+ } while (counter > -1);
+ /* overflow */
+ if (h_dvd || (l_dvd > s)) {
+ x86emu_intr_raise(0);
+ return;
+ }
+ mod = l_dvd;
+#endif
+ CLEAR_FLAG(F_CF);
+ CLEAR_FLAG(F_AF);
+ CLEAR_FLAG(F_SF);
+ SET_FLAG(F_ZF);
+ CONDITIONAL_SET_FLAG(PARITY(mod & 0xff), F_PF);
+
+ M.x86.R_EAX = (u32) div;
+ M.x86.R_EDX = (u32) mod;
+}
+
+/****************************************************************************
+REMARKS:
+Implements the IN string instruction and side effects.
+****************************************************************************/
+void
+ins(int size)
+{
+ int inc = size;
+
+ if (ACCESS_FLAG(F_DF)) {
+ inc = -size;
+ }
+ if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+ /* dont care whether REPE or REPNE */
+ /* in until CX is ZERO. */
+ u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ?
+ M.x86.R_ECX : M.x86.R_CX);
+ switch (size) {
+ case 1:
+ while (count--) {
+ store_data_byte_abs(M.x86.R_ES, M.x86.R_DI,
+ (*sys_inb) (M.x86.R_DX));
+ M.x86.R_DI += inc;
+ }
+ break;
+
+ case 2:
+ while (count--) {
+ store_data_word_abs(M.x86.R_ES, M.x86.R_DI,
+ (*sys_inw) (M.x86.R_DX));
+ M.x86.R_DI += inc;
+ }
+ break;
+ case 4:
+ while (count--) {
+ store_data_long_abs(M.x86.R_ES, M.x86.R_DI,
+ (*sys_inl) (M.x86.R_DX));
+ M.x86.R_DI += inc;
+ break;
+ }
+ }
+ M.x86.R_CX = 0;
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ECX = 0;
+ }
+ M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+ }
+ else {
+ switch (size) {
+ case 1:
+ store_data_byte_abs(M.x86.R_ES, M.x86.R_DI,
+ (*sys_inb) (M.x86.R_DX));
+ break;
+ case 2:
+ store_data_word_abs(M.x86.R_ES, M.x86.R_DI,
+ (*sys_inw) (M.x86.R_DX));
+ break;
+ case 4:
+ store_data_long_abs(M.x86.R_ES, M.x86.R_DI,
+ (*sys_inl) (M.x86.R_DX));
+ break;
+ }
+ M.x86.R_DI += inc;
+ }
+}
+
+/****************************************************************************
+REMARKS:
+Implements the OUT string instruction and side effects.
+****************************************************************************/
+void
+outs(int size)
+{
+ int inc = size;
+
+ if (ACCESS_FLAG(F_DF)) {
+ inc = -size;
+ }
+ if (M.x86.mode & (SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE)) {
+ /* dont care whether REPE or REPNE */
+ /* out until CX is ZERO. */
+ u32 count = ((M.x86.mode & SYSMODE_PREFIX_DATA) ?
+ M.x86.R_ECX : M.x86.R_CX);
+ switch (size) {
+ case 1:
+ while (count--) {
+ (*sys_outb) (M.x86.R_DX,
+ fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI));
+ M.x86.R_SI += inc;
+ }
+ break;
+
+ case 2:
+ while (count--) {
+ (*sys_outw) (M.x86.R_DX,
+ fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI));
+ M.x86.R_SI += inc;
+ }
+ break;
+ case 4:
+ while (count--) {
+ (*sys_outl) (M.x86.R_DX,
+ fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI));
+ M.x86.R_SI += inc;
+ break;
+ }
+ }
+ M.x86.R_CX = 0;
+ if (M.x86.mode & SYSMODE_PREFIX_DATA) {
+ M.x86.R_ECX = 0;
+ }
+ M.x86.mode &= ~(SYSMODE_PREFIX_REPE | SYSMODE_PREFIX_REPNE);
+ }
+ else {
+ switch (size) {
+ case 1:
+ (*sys_outb) (M.x86.R_DX,
+ fetch_data_byte_abs(M.x86.R_ES, M.x86.R_SI));
+ break;
+ case 2:
+ (*sys_outw) (M.x86.R_DX,
+ fetch_data_word_abs(M.x86.R_ES, M.x86.R_SI));
+ break;
+ case 4:
+ (*sys_outl) (M.x86.R_DX,
+ fetch_data_long_abs(M.x86.R_ES, M.x86.R_SI));
+ break;
+ }
+ M.x86.R_SI += inc;
+ }
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - Address to fetch word from
+
+REMARKS:
+Fetches a word from emulator memory using an absolute address.
+****************************************************************************/
+u16
+mem_access_word(int addr)
+{
+ DB(if (CHECK_MEM_ACCESS())
+ x86emu_check_mem_access(addr);)
+ return (*sys_rdw) (addr);
+}
+
+/****************************************************************************
+REMARKS:
+Pushes a word onto the stack.
+
+NOTE: Do not inline this, as (*sys_wrX) is already inline!
+****************************************************************************/
+void
+push_word(u16 w)
+{
+ DB(if (CHECK_SP_ACCESS())
+ x86emu_check_sp_access();)
+ M.x86.R_SP -= 2;
+ (*sys_wrw) (((u32) M.x86.R_SS << 4) + M.x86.R_SP, w);
+}
+
+/****************************************************************************
+REMARKS:
+Pushes a long onto the stack.
+
+NOTE: Do not inline this, as (*sys_wrX) is already inline!
+****************************************************************************/
+void
+push_long(u32 w)
+{
+ DB(if (CHECK_SP_ACCESS())
+ x86emu_check_sp_access();)
+ M.x86.R_SP -= 4;
+ (*sys_wrl) (((u32) M.x86.R_SS << 4) + M.x86.R_SP, w);
+}
+
+/****************************************************************************
+REMARKS:
+Pops a word from the stack.
+
+NOTE: Do not inline this, as (*sys_rdX) is already inline!
+****************************************************************************/
+u16
+pop_word(void)
+{
+ register u16 res;
+
+ DB(if (CHECK_SP_ACCESS())
+ x86emu_check_sp_access();)
+ res = (*sys_rdw) (((u32) M.x86.R_SS << 4) + M.x86.R_SP);
+ M.x86.R_SP += 2;
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+Pops a long from the stack.
+
+NOTE: Do not inline this, as (*sys_rdX) is already inline!
+****************************************************************************/
+u32
+pop_long(void)
+{
+ register u32 res;
+
+ DB(if (CHECK_SP_ACCESS())
+ x86emu_check_sp_access();)
+ res = (*sys_rdl) (((u32) M.x86.R_SS << 4) + M.x86.R_SP);
+ M.x86.R_SP += 4;
+ return res;
+}
+
+/****************************************************************************
+REMARKS:
+CPUID takes EAX/ECX as inputs, writes EAX/EBX/ECX/EDX as output
+****************************************************************************/
+void
+cpuid(void)
+{
+ u32 feature = M.x86.R_EAX;
+
+#ifdef X86EMU_HAS_HW_CPUID
+ /* If the platform allows it, we will base our values on the real
+ * results from the CPUID instruction. We limit support to the
+ * first two features, and the results of those are sanitized.
+ */
+ if (feature <= 1)
+ hw_cpuid(&M.x86.R_EAX, &M.x86.R_EBX, &M.x86.R_ECX, &M.x86.R_EDX);
+#endif
+
+ switch (feature) {
+ case 0:
+ /* Regardless if we have real data from the hardware, the emulator
+ * will only support upto feature 1, which we set in register EAX.
+ * Registers EBX:EDX:ECX contain a string identifying the CPU.
+ */
+ M.x86.R_EAX = 1;
+#ifndef X86EMU_HAS_HW_CPUID
+ /* EBX:EDX:ECX = "GenuineIntel" */
+ M.x86.R_EBX = 0x756e6547;
+ M.x86.R_EDX = 0x49656e69;
+ M.x86.R_ECX = 0x6c65746e;
+#endif
+ break;
+ case 1:
+#ifndef X86EMU_HAS_HW_CPUID
+ /* If we don't have x86 compatible hardware, we return values from an
+ * Intel 486dx4; which was one of the first processors to have CPUID.
+ */
+ M.x86.R_EAX = 0x00000480;
+ M.x86.R_EBX = 0x00000000;
+ M.x86.R_ECX = 0x00000000;
+ M.x86.R_EDX = 0x00000002; /* VME */
+#else
+ /* In the case that we have hardware CPUID instruction, we make sure
+ * that the features reported are limited to TSC and VME.
+ */
+ M.x86.R_EDX &= 0x00000012;
+#endif
+ break;
+ default:
+ /* Finally, we don't support any additional features. Most CPUs
+ * return all zeros when queried for invalid or unsupported feature
+ * numbers.
+ */
+ M.x86.R_EAX = 0;
+ M.x86.R_EBX = 0;
+ M.x86.R_ECX = 0;
+ M.x86.R_EDX = 0;
+ break;
+ }
+}
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: This file includes subroutines which are related to
+* programmed I/O and memory access. Included in this module
+* are default functions with limited usefulness. For real
+* uses these functions will most likely be overriden by the
+* user library.
+*
+****************************************************************************/
+
+#include "x86emu.h"
+#include "x86emu/x86emui.h"
+#include "x86emu/regs.h"
+#include "x86emu/debug.h"
+#include "x86emu/prim_ops.h"
+#ifndef NO_SYS_HEADERS
+#include <string.h>
+#endif
+
+#ifdef __GNUC__
+
+/* Define some packed structures to use with unaligned accesses */
+
+struct __una_u64 {
+ u64 x __attribute__ ((packed));
+};
+struct __una_u32 {
+ u32 x __attribute__ ((packed));
+};
+struct __una_u16 {
+ u16 x __attribute__ ((packed));
+};
+
+/* Elemental unaligned loads */
+
+static __inline__ u64
+ldq_u(u64 * p)
+{
+ const struct __una_u64 *ptr = (const struct __una_u64 *) p;
+
+ return ptr->x;
+}
+
+static __inline__ u32
+ldl_u(u32 * p)
+{
+ const struct __una_u32 *ptr = (const struct __una_u32 *) p;
+
+ return ptr->x;
+}
+
+static __inline__ u16
+ldw_u(u16 * p)
+{
+ const struct __una_u16 *ptr = (const struct __una_u16 *) p;
+
+ return ptr->x;
+}
+
+/* Elemental unaligned stores */
+
+static __inline__ void
+stq_u(u64 val, u64 * p)
+{
+ struct __una_u64 *ptr = (struct __una_u64 *) p;
+
+ ptr->x = val;
+}
+
+static __inline__ void
+stl_u(u32 val, u32 * p)
+{
+ struct __una_u32 *ptr = (struct __una_u32 *) p;
+
+ ptr->x = val;
+}
+
+static __inline__ void
+stw_u(u16 val, u16 * p)
+{
+ struct __una_u16 *ptr = (struct __una_u16 *) p;
+
+ ptr->x = val;
+}
+#else /* !__GNUC__ */
+
+static __inline__ u64
+ldq_u(u64 * p)
+{
+ u64 ret;
+
+ memmove(&ret, p, sizeof(*p));
+ return ret;
+}
+
+static __inline__ u32
+ldl_u(u32 * p)
+{
+ u32 ret;
+
+ memmove(&ret, p, sizeof(*p));
+ return ret;
+}
+
+static __inline__ u16
+ldw_u(u16 * p)
+{
+ u16 ret;
+
+ memmove(&ret, p, sizeof(*p));
+ return ret;
+}
+
+static __inline__ void
+stq_u(u64 val, u64 * p)
+{
+ u64 tmp = val;
+
+ memmove(p, &tmp, sizeof(*p));
+}
+
+static __inline__ void
+stl_u(u32 val, u32 * p)
+{
+ u32 tmp = val;
+
+ memmove(p, &tmp, sizeof(*p));
+}
+
+static __inline__ void
+stw_u(u16 val, u16 * p)
+{
+ u16 tmp = val;
+
+ memmove(p, &tmp, sizeof(*p));
+}
+
+#endif /* __GNUC__ */
+/*------------------------- Global Variables ------------------------------*/
+
+X86EMU_sysEnv _X86EMU_env; /* Global emulator machine state */
+X86EMU_intrFuncs _X86EMU_intrTab[256];
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to read
+
+RETURNS:
+Byte value read from emulator memory.
+
+REMARKS:
+Reads a byte value from the emulator memory.
+****************************************************************************/
+u8 X86API
+rdb(u32 addr)
+{
+ u8 val;
+
+ if (addr > M.mem_size - 1) {
+ DB(printk("mem_read: address %#" PRIx32 " out of range!\n", addr);
+ )
+ HALT_SYS();
+ }
+ val = *(u8 *) (M.mem_base + addr);
+ DB(if (DEBUG_MEM_TRACE())
+ printk("%#08x 1 -> %#x\n", addr, val);)
+ return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to read
+
+RETURNS:
+Word value read from emulator memory.
+
+REMARKS:
+Reads a word value from the emulator memory.
+****************************************************************************/
+u16 X86API
+rdw(u32 addr)
+{
+ u16 val = 0;
+
+ if (addr > M.mem_size - 2) {
+ DB(printk("mem_read: address %#" PRIx32 " out of range!\n", addr);
+ )
+ HALT_SYS();
+ }
+#ifdef __BIG_ENDIAN__
+ if (addr & 0x1) {
+ val = (*(u8 *) (M.mem_base + addr) |
+ (*(u8 *) (M.mem_base + addr + 1) << 8));
+ }
+ else
+#endif
+ val = ldw_u((u16 *) (M.mem_base + addr));
+ DB(if (DEBUG_MEM_TRACE())
+ printk("%#08x 2 -> %#x\n", addr, val);)
+ return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to read
+
+RETURNS:
+Long value read from emulator memory.
+REMARKS:
+Reads a long value from the emulator memory.
+****************************************************************************/
+u32 X86API
+rdl(u32 addr)
+{
+ u32 val = 0;
+
+ if (addr > M.mem_size - 4) {
+ DB(printk("mem_read: address %#" PRIx32 " out of range!\n", addr);
+ )
+ HALT_SYS();
+ }
+#ifdef __BIG_ENDIAN__
+ if (addr & 0x3) {
+ val = (*(u8 *) (M.mem_base + addr + 0) |
+ (*(u8 *) (M.mem_base + addr + 1) << 8) |
+ (*(u8 *) (M.mem_base + addr + 2) << 16) |
+ (*(u8 *) (M.mem_base + addr + 3) << 24));
+ }
+ else
+#endif
+ val = ldl_u((u32 *) (M.mem_base + addr));
+ DB(if (DEBUG_MEM_TRACE())
+ printk("%#08x 4 -> %#x\n", addr, val);)
+ return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to read
+val - Value to store
+
+REMARKS:
+Writes a byte value to emulator memory.
+****************************************************************************/
+void X86API
+wrb(u32 addr, u8 val)
+{
+ DB(if (DEBUG_MEM_TRACE())
+ printk("%#08x 1 <- %#x\n", addr, val);)
+ if (addr > M.mem_size - 1) {
+ DB(printk("mem_write: address %#" PRIx32 " out of range!\n",addr);
+ )
+ HALT_SYS();
+ }
+ *(u8 *) (M.mem_base + addr) = val;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to read
+val - Value to store
+
+REMARKS:
+Writes a word value to emulator memory.
+****************************************************************************/
+void X86API
+wrw(u32 addr, u16 val)
+{
+ DB(if (DEBUG_MEM_TRACE())
+ printk("%#08x 2 <- %#x\n", addr, val);)
+ if (addr > M.mem_size - 2) {
+ DB(printk("mem_write: address %#" PRIx32 " out of range!\n",addr);
+ )
+ HALT_SYS();
+ }
+#ifdef __BIG_ENDIAN__
+ if (addr & 0x1) {
+ *(u8 *) (M.mem_base + addr + 0) = (val >> 0) & 0xff;
+ *(u8 *) (M.mem_base + addr + 1) = (val >> 8) & 0xff;
+ }
+ else
+#endif
+ stw_u(val, (u16 *) (M.mem_base + addr));
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to read
+val - Value to store
+
+REMARKS:
+Writes a long value to emulator memory.
+****************************************************************************/
+void X86API
+wrl(u32 addr, u32 val)
+{
+ DB(if (DEBUG_MEM_TRACE())
+ printk("%#08x 4 <- %#x\n", addr, val);)
+ if (addr > M.mem_size - 4) {
+ DB(printk("mem_write: address %#" PRIx32 " out of range!\n",addr);
+ )
+ HALT_SYS();
+ }
+#ifdef __BIG_ENDIAN__
+ if (addr & 0x1) {
+ *(u8 *) (M.mem_base + addr + 0) = (val >> 0) & 0xff;
+ *(u8 *) (M.mem_base + addr + 1) = (val >> 8) & 0xff;
+ *(u8 *) (M.mem_base + addr + 2) = (val >> 16) & 0xff;
+ *(u8 *) (M.mem_base + addr + 3) = (val >> 24) & 0xff;
+ }
+ else
+#endif
+ stl_u(val, (u32 *) (M.mem_base + addr));
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - PIO address to read
+RETURN:
+0
+REMARKS:
+Default PIO byte read function. Doesn't perform real inb.
+****************************************************************************/
+static u8 X86API
+p_inb(X86EMU_pioAddr addr)
+{
+ DB(if (DEBUG_IO_TRACE())
+ printk("inb %#04x \n", addr);)
+ return 0;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - PIO address to read
+RETURN:
+0
+REMARKS:
+Default PIO word read function. Doesn't perform real inw.
+****************************************************************************/
+static u16 X86API
+p_inw(X86EMU_pioAddr addr)
+{
+ DB(if (DEBUG_IO_TRACE())
+ printk("inw %#04x \n", addr);)
+ return 0;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - PIO address to read
+RETURN:
+0
+REMARKS:
+Default PIO long read function. Doesn't perform real inl.
+****************************************************************************/
+static u32 X86API
+p_inl(X86EMU_pioAddr addr)
+{
+ DB(if (DEBUG_IO_TRACE())
+ printk("inl %#04x \n", addr);)
+ return 0;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - PIO address to write
+val - Value to store
+REMARKS:
+Default PIO byte write function. Doesn't perform real outb.
+****************************************************************************/
+static void X86API
+p_outb(X86EMU_pioAddr addr, u8 val)
+{
+ DB(if (DEBUG_IO_TRACE())
+ printk("outb %#02x -> %#04x \n", val, addr);)
+ return;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - PIO address to write
+val - Value to store
+REMARKS:
+Default PIO word write function. Doesn't perform real outw.
+****************************************************************************/
+static void X86API
+p_outw(X86EMU_pioAddr addr, u16 val)
+{
+ DB(if (DEBUG_IO_TRACE())
+ printk("outw %#04x -> %#04x \n", val, addr);)
+ return;
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - PIO address to write
+val - Value to store
+REMARKS:
+Default PIO ;ong write function. Doesn't perform real outl.
+****************************************************************************/
+static void X86API
+p_outl(X86EMU_pioAddr addr, u32 val)
+{
+ DB(if (DEBUG_IO_TRACE())
+ printk("outl %#08x -> %#04x \n", val, addr);)
+ return;
+}
+
+/*------------------------- Global Variables ------------------------------*/
+
+u8(X86APIP sys_rdb) (u32 addr) = rdb;
+u16(X86APIP sys_rdw) (u32 addr) = rdw;
+u32(X86APIP sys_rdl) (u32 addr) = rdl;
+void (X86APIP sys_wrb) (u32 addr, u8 val) = wrb;
+void (X86APIP sys_wrw) (u32 addr, u16 val) = wrw;
+void (X86APIP sys_wrl) (u32 addr, u32 val) = wrl;
+
+u8(X86APIP sys_inb) (X86EMU_pioAddr addr) = p_inb;
+u16(X86APIP sys_inw) (X86EMU_pioAddr addr) = p_inw;
+u32(X86APIP sys_inl) (X86EMU_pioAddr addr) = p_inl;
+void (X86APIP sys_outb) (X86EMU_pioAddr addr, u8 val) = p_outb;
+void (X86APIP sys_outw) (X86EMU_pioAddr addr, u16 val) = p_outw;
+void (X86APIP sys_outl) (X86EMU_pioAddr addr, u32 val) = p_outl;
+
+/*----------------------------- Setup -------------------------------------*/
+
+/****************************************************************************
+PARAMETERS:
+funcs - New memory function pointers to make active
+
+REMARKS:
+This function is used to set the pointers to functions which access
+memory space, allowing the user application to override these functions
+and hook them out as necessary for their application.
+****************************************************************************/
+void
+X86EMU_setupMemFuncs(X86EMU_memFuncs * funcs)
+{
+ sys_rdb = funcs->rdb;
+ sys_rdw = funcs->rdw;
+ sys_rdl = funcs->rdl;
+ sys_wrb = funcs->wrb;
+ sys_wrw = funcs->wrw;
+ sys_wrl = funcs->wrl;
+}
+
+/****************************************************************************
+PARAMETERS:
+funcs - New programmed I/O function pointers to make active
+
+REMARKS:
+This function is used to set the pointers to functions which access
+I/O space, allowing the user application to override these functions
+and hook them out as necessary for their application.
+****************************************************************************/
+void
+X86EMU_setupPioFuncs(X86EMU_pioFuncs * funcs)
+{
+ sys_inb = funcs->inb;
+ sys_inw = funcs->inw;
+ sys_inl = funcs->inl;
+ sys_outb = funcs->outb;
+ sys_outw = funcs->outw;
+ sys_outl = funcs->outl;
+}
+
+/****************************************************************************
+PARAMETERS:
+funcs - New interrupt vector table to make active
+
+REMARKS:
+This function is used to set the pointers to functions which handle
+interrupt processing in the emulator, allowing the user application to
+hook interrupts as necessary for their application. Any interrupts that
+are not hooked by the user application, and reflected and handled internally
+in the emulator via the interrupt vector table. This allows the application
+to get control when the code being emulated executes specific software
+interrupts.
+****************************************************************************/
+void
+X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[])
+{
+ int i;
+
+ for (i = 0; i < 256; i++)
+ _X86EMU_intrTab[i] = NULL;
+ if (funcs) {
+ for (i = 0; i < 256; i++)
+ _X86EMU_intrTab[i] = funcs[i];
+ }
+}
+
+/****************************************************************************
+PARAMETERS:
+int - New software interrupt to prepare for
+
+REMARKS:
+This function is used to set up the emulator state to exceute a software
+interrupt. This can be used by the user application code to allow an
+interrupt to be hooked, examined and then reflected back to the emulator
+so that the code in the emulator will continue processing the software
+interrupt as per normal. This essentially allows system code to actively
+hook and handle certain software interrupts as necessary.
+****************************************************************************/
+void
+X86EMU_prepareForInt(int num)
+{
+ push_word((u16) M.x86.R_FLG);
+ CLEAR_FLAG(F_IF);
+ CLEAR_FLAG(F_TF);
+ push_word(M.x86.R_CS);
+ M.x86.R_CS = mem_access_word(num * 4 + 2);
+ push_word(M.x86.R_IP);
+ M.x86.R_IP = mem_access_word(num * 4);
+ M.x86.intr = 0;
+}
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: Watcom C 10.6 or later
+* Environment: 32-bit DOS
+* Developer: Kendall Bennett
+*
+* Description: Program to validate the x86 emulator library for
+* correctness. We run the emulator primitive operations
+* functions against the real x86 CPU, and compare the result
+* and flags to ensure correctness.
+*
+* We use inline assembler to compile and build this program.
+*
+****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include "x86emu.h"
+#include "x86emu/prim_asm.h"
+
+/*-------------------------- Implementation -------------------------------*/
+
+#define true 1
+#define false 0
+
+#define ALL_FLAGS (F_CF | F_PF | F_AF | F_ZF | F_SF | F_OF)
+
+#define VAL_START_BINARY(parm_type,res_type,dmax,smax,dincr,sincr) \
+{ \
+ parm_type d,s; \
+ res_type r,r_asm; \
+ ulong flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < dmax; d += dincr) { \
+ for (s = 0; s < smax; s += sincr) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) {
+
+#define VAL_TEST_BINARY(name) \
+ r_asm = name##_asm(&flags,d,s); \
+ r = name(d,s); \
+ if (r != r_asm || M.x86.R_EFLG != flags) \
+ failed = true; \
+ if (failed || trace) {
+
+#define VAL_TEST_BINARY_VOID(name) \
+ name##_asm(&flags,d,s); \
+ name(d,s); \
+ r = r_asm = 0; \
+ if (M.x86.R_EFLG != flags) \
+ failed = true; \
+ if (failed || trace) {
+
+#define VAL_FAIL_BYTE_BYTE_BINARY(name) \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%02X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n", \
+ r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%02X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_WORD_WORD_BINARY(name) \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n", \
+ r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_LONG_LONG_BINARY(name) \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n", \
+ r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_END_BINARY() \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+#define VAL_BYTE_BYTE_BINARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u8,u8,0xFF,0xFF,1,1) \
+ VAL_TEST_BINARY(name) \
+ VAL_FAIL_BYTE_BYTE_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_WORD_WORD_BINARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u16,u16,0xFF00,0xFF00,0x100,0x100) \
+ VAL_TEST_BINARY(name) \
+ VAL_FAIL_WORD_WORD_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_LONG_LONG_BINARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000) \
+ VAL_TEST_BINARY(name) \
+ VAL_FAIL_LONG_LONG_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_VOID_BYTE_BINARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u8,u8,0xFF,0xFF,1,1) \
+ VAL_TEST_BINARY_VOID(name) \
+ VAL_FAIL_BYTE_BYTE_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_VOID_WORD_BINARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u16,u16,0xFF00,0xFF00,0x100,0x100) \
+ VAL_TEST_BINARY_VOID(name) \
+ VAL_FAIL_WORD_WORD_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_VOID_LONG_BINARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000) \
+ VAL_TEST_BINARY_VOID(name) \
+ VAL_FAIL_LONG_LONG_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_BYTE_ROTATE(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u8,u8,0xFF,8,1,1) \
+ VAL_TEST_BINARY(name) \
+ VAL_FAIL_BYTE_BYTE_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_WORD_ROTATE(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u16,u16,0xFF00,16,0x100,1) \
+ VAL_TEST_BINARY(name) \
+ VAL_FAIL_WORD_WORD_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_LONG_ROTATE(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_BINARY(u32,u32,0xFF000000,32,0x1000000,1) \
+ VAL_TEST_BINARY(name) \
+ VAL_FAIL_LONG_LONG_BINARY(name) \
+ VAL_END_BINARY()
+
+#define VAL_START_TERNARY(parm_type,res_type,dmax,smax,dincr,sincr,maxshift)\
+{ \
+ parm_type d,s; \
+ res_type r,r_asm; \
+ u8 shift; \
+ u32 flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < dmax; d += dincr) { \
+ for (s = 0; s < smax; s += sincr) { \
+ for (shift = 0; shift < maxshift; shift += 1) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) {
+
+#define VAL_TEST_TERNARY(name) \
+ r_asm = name##_asm(&flags,d,s,shift); \
+ r = name(d,s,shift); \
+ if (r != r_asm || M.x86.R_EFLG != flags) \
+ failed = true; \
+ if (failed || trace) {
+
+#define VAL_FAIL_WORD_WORD_TERNARY(name) \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%04X = %-15s(0x%04X,0x%04X,%d), flags = %s -> %s\n", \
+ r, #name, d, s, shift, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%04X = %-15s(0x%04X,0x%04X,%d), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, s, shift, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_LONG_LONG_TERNARY(name) \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%08X = %-15s(0x%08X,0x%08X,%d), flags = %s -> %s\n", \
+ r, #name, d, s, shift, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%08X = %-15s(0x%08X,0x%08X,%d), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, s, shift, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_END_TERNARY() \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+#define VAL_WORD_ROTATE_DBL(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_TERNARY(u16,u16,0xFF00,0xFF00,0x100,0x100,16) \
+ VAL_TEST_TERNARY(name) \
+ VAL_FAIL_WORD_WORD_TERNARY(name) \
+ VAL_END_TERNARY()
+
+#define VAL_LONG_ROTATE_DBL(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_TERNARY(u32,u32,0xFF000000,0xFF000000,0x1000000,0x1000000,32) \
+ VAL_TEST_TERNARY(name) \
+ VAL_FAIL_LONG_LONG_TERNARY(name) \
+ VAL_END_TERNARY()
+
+#define VAL_START_UNARY(parm_type,max,incr) \
+{ \
+ parm_type d,r,r_asm; \
+ u32 flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < max; d += incr) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) {
+
+#define VAL_TEST_UNARY(name) \
+ r_asm = name##_asm(&flags,d); \
+ r = name(d); \
+ if (r != r_asm || M.x86.R_EFLG != flags) { \
+ failed = true;
+
+#define VAL_FAIL_BYTE_UNARY(name) \
+ printk("fail\n"); \
+ printk("0x%02X = %-15s(0x%02X), flags = %s -> %s\n", \
+ r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%02X = %-15s(0x%02X), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_WORD_UNARY(name) \
+ printk("fail\n"); \
+ printk("0x%04X = %-15s(0x%04X), flags = %s -> %s\n", \
+ r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%04X = %-15s(0x%04X), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_FAIL_LONG_UNARY(name) \
+ printk("fail\n"); \
+ printk("0x%08X = %-15s(0x%08X), flags = %s -> %s\n", \
+ r, #name, d, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%08X = %-15s(0x%08X), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, print_flags(buf1,inflags), print_flags(buf2,flags));
+
+#define VAL_END_UNARY() \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | ALL_FLAGS; \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+#define VAL_BYTE_UNARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_UNARY(u8,0xFF,0x1) \
+ VAL_TEST_UNARY(name) \
+ VAL_FAIL_BYTE_UNARY(name) \
+ VAL_END_UNARY()
+
+#define VAL_WORD_UNARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_UNARY(u16,0xFF00,0x100) \
+ VAL_TEST_UNARY(name) \
+ VAL_FAIL_WORD_UNARY(name) \
+ VAL_END_UNARY()
+
+#define VAL_WORD_BYTE_UNARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_UNARY(u16,0xFF,0x1) \
+ VAL_TEST_UNARY(name) \
+ VAL_FAIL_WORD_UNARY(name) \
+ VAL_END_UNARY()
+
+#define VAL_LONG_UNARY(name) \
+ printk("Validating %s ... ", #name); \
+ VAL_START_UNARY(u32,0xFF000000,0x1000000) \
+ VAL_TEST_UNARY(name) \
+ VAL_FAIL_LONG_UNARY(name) \
+ VAL_END_UNARY()
+
+#define VAL_BYTE_MUL(name) \
+ printk("Validating %s ... ", #name); \
+{ \
+ u8 d,s; \
+ u16 r,r_asm; \
+ u32 flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < 0xFF; d += 1) { \
+ for (s = 0; s < 0xFF; s += 1) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) { \
+ name##_asm(&flags,&r_asm,d,s); \
+ M.x86.R_AL = d; \
+ name(s); \
+ r = M.x86.R_AX; \
+ if (r != r_asm || M.x86.R_EFLG != flags) \
+ failed = true; \
+ if (failed || trace) { \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%04X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n", \
+ r, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%04X = %-15s(0x%02X,0x%02X), flags = %s -> %s\n", \
+ r_asm, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+#define VAL_WORD_MUL(name) \
+ printk("Validating %s ... ", #name); \
+{ \
+ u16 d,s; \
+ u16 r_lo,r_asm_lo; \
+ u16 r_hi,r_asm_hi; \
+ u32 flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < 0xFF00; d += 0x100) { \
+ for (s = 0; s < 0xFF00; s += 0x100) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) { \
+ name##_asm(&flags,&r_asm_lo,&r_asm_hi,d,s); \
+ M.x86.R_AX = d; \
+ name(s); \
+ r_lo = M.x86.R_AX; \
+ r_hi = M.x86.R_DX; \
+ if (r_lo != r_asm_lo || r_hi != r_asm_hi || M.x86.R_EFLG != flags)\
+ failed = true; \
+ if (failed || trace) { \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%04X:0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n", \
+ r_hi,r_lo, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%04X:0x%04X = %-15s(0x%04X,0x%04X), flags = %s -> %s\n", \
+ r_asm_hi,r_asm_lo, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+#define VAL_LONG_MUL(name) \
+ printk("Validating %s ... ", #name); \
+{ \
+ u32 d,s; \
+ u32 r_lo,r_asm_lo; \
+ u32 r_hi,r_asm_hi; \
+ u32 flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < 0xFF000000; d += 0x1000000) { \
+ for (s = 0; s < 0xFF000000; s += 0x1000000) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) { \
+ name##_asm(&flags,&r_asm_lo,&r_asm_hi,d,s); \
+ M.x86.R_EAX = d; \
+ name(s); \
+ r_lo = M.x86.R_EAX; \
+ r_hi = M.x86.R_EDX; \
+ if (r_lo != r_asm_lo || r_hi != r_asm_hi || M.x86.R_EFLG != flags)\
+ failed = true; \
+ if (failed || trace) { \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%08X:0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n", \
+ r_hi,r_lo, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%08X:0x%08X = %-15s(0x%08X,0x%08X), flags = %s -> %s\n", \
+ r_asm_hi,r_asm_lo, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+#define VAL_BYTE_DIV(name) \
+ printk("Validating %s ... ", #name); \
+{ \
+ u16 d,s; \
+ u8 r_quot,r_rem,r_asm_quot,r_asm_rem; \
+ u32 flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < 0xFF00; d += 0x100) { \
+ for (s = 1; s < 0xFF; s += 1) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) { \
+ M.x86.intr = 0; \
+ M.x86.R_AX = d; \
+ name(s); \
+ r_quot = M.x86.R_AL; \
+ r_rem = M.x86.R_AH; \
+ if (M.x86.intr & INTR_SYNCH) \
+ continue; \
+ name##_asm(&flags,&r_asm_quot,&r_asm_rem,d,s); \
+ if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \
+ failed = true; \
+ if (failed || trace) { \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%02X:0x%02X = %-15s(0x%04X,0x%02X), flags = %s -> %s\n", \
+ r_quot, r_rem, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%02X:0x%02X = %-15s(0x%04X,0x%02X), flags = %s -> %s\n", \
+ r_asm_quot, r_asm_rem, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+#define VAL_WORD_DIV(name) \
+ printk("Validating %s ... ", #name); \
+{ \
+ u32 d,s; \
+ u16 r_quot,r_rem,r_asm_quot,r_asm_rem; \
+ u32 flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < 0xFF000000; d += 0x1000000) { \
+ for (s = 0x100; s < 0xFF00; s += 0x100) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) { \
+ M.x86.intr = 0; \
+ M.x86.R_AX = d & 0xFFFF; \
+ M.x86.R_DX = d >> 16; \
+ name(s); \
+ r_quot = M.x86.R_AX; \
+ r_rem = M.x86.R_DX; \
+ if (M.x86.intr & INTR_SYNCH) \
+ continue; \
+ name##_asm(&flags,&r_asm_quot,&r_asm_rem,d & 0xFFFF,d >> 16,s);\
+ if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \
+ failed = true; \
+ if (failed || trace) { \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%04X:0x%04X = %-15s(0x%08X,0x%04X), flags = %s -> %s\n", \
+ r_quot, r_rem, #name, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%04X:0x%04X = %-15s(0x%08X,0x%04X), flags = %s -> %s\n", \
+ r_asm_quot, r_asm_rem, #name"_asm", d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+#define VAL_LONG_DIV(name) \
+ printk("Validating %s ... ", #name); \
+{ \
+ u32 d,s; \
+ u32 r_quot,r_rem,r_asm_quot,r_asm_rem; \
+ u32 flags,inflags; \
+ int f,failed = false; \
+ char buf1[80],buf2[80]; \
+ for (d = 0; d < 0xFF000000; d += 0x1000000) { \
+ for (s = 0x100; s < 0xFF00; s += 0x100) { \
+ M.x86.R_EFLG = inflags = flags = def_flags; \
+ for (f = 0; f < 2; f++) { \
+ M.x86.intr = 0; \
+ M.x86.R_EAX = d; \
+ M.x86.R_EDX = 0; \
+ name(s); \
+ r_quot = M.x86.R_EAX; \
+ r_rem = M.x86.R_EDX; \
+ if (M.x86.intr & INTR_SYNCH) \
+ continue; \
+ name##_asm(&flags,&r_asm_quot,&r_asm_rem,d,0,s); \
+ if (r_quot != r_asm_quot || r_rem != r_asm_rem || M.x86.R_EFLG != flags) \
+ failed = true; \
+ if (failed || trace) { \
+ if (failed) \
+ printk("fail\n"); \
+ printk("0x%08X:0x%08X = %-15s(0x%08X:0x%08X,0x%08X), flags = %s -> %s\n", \
+ r_quot, r_rem, #name, 0, d, s, print_flags(buf1,inflags), print_flags(buf2,M.x86.R_EFLG)); \
+ printk("0x%08X:0x%08X = %-15s(0x%08X:0x%08X,0x%08X), flags = %s -> %s\n", \
+ r_asm_quot, r_asm_rem, #name"_asm", 0, d, s, print_flags(buf1,inflags), print_flags(buf2,flags)); \
+ } \
+ M.x86.R_EFLG = inflags = flags = def_flags | (ALL_FLAGS & ~F_OF); \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (failed) \
+ break; \
+ } \
+ if (!failed) \
+ printk("passed\n"); \
+}
+
+void
+printk(const char *fmt, ...)
+{
+ va_list argptr;
+
+ va_start(argptr, fmt);
+ vfprintf(stdout, fmt, argptr);
+ fflush(stdout);
+ va_end(argptr);
+}
+
+char *
+print_flags(char *buf, ulong flags)
+{
+ char *separator = "";
+
+ buf[0] = 0;
+ if (flags & F_CF) {
+ strcat(buf, separator);
+ strcat(buf, "CF");
+ separator = ",";
+ }
+ if (flags & F_PF) {
+ strcat(buf, separator);
+ strcat(buf, "PF");
+ separator = ",";
+ }
+ if (flags & F_AF) {
+ strcat(buf, separator);
+ strcat(buf, "AF");
+ separator = ",";
+ }
+ if (flags & F_ZF) {
+ strcat(buf, separator);
+ strcat(buf, "ZF");
+ separator = ",";
+ }
+ if (flags & F_SF) {
+ strcat(buf, separator);
+ strcat(buf, "SF");
+ separator = ",";
+ }
+ if (flags & F_OF) {
+ strcat(buf, separator);
+ strcat(buf, "OF");
+ separator = ",";
+ }
+ if (separator[0] == 0)
+ strcpy(buf, "None");
+ return buf;
+}
+
+int
+main(int argc)
+{
+ ulong def_flags;
+ int trace = false;
+
+ if (argc > 1)
+ trace = true;
+ memset(&M, 0, sizeof(M));
+ def_flags = get_flags_asm() & ~ALL_FLAGS;
+
+ VAL_WORD_UNARY(aaa_word);
+ VAL_WORD_UNARY(aas_word);
+
+ VAL_WORD_UNARY(aad_word);
+ VAL_WORD_UNARY(aam_word);
+
+ VAL_BYTE_BYTE_BINARY(adc_byte);
+ VAL_WORD_WORD_BINARY(adc_word);
+ VAL_LONG_LONG_BINARY(adc_long);
+
+ VAL_BYTE_BYTE_BINARY(add_byte);
+ VAL_WORD_WORD_BINARY(add_word);
+ VAL_LONG_LONG_BINARY(add_long);
+
+ VAL_BYTE_BYTE_BINARY(and_byte);
+ VAL_WORD_WORD_BINARY(and_word);
+ VAL_LONG_LONG_BINARY(and_long);
+
+ VAL_BYTE_BYTE_BINARY(cmp_byte);
+ VAL_WORD_WORD_BINARY(cmp_word);
+ VAL_LONG_LONG_BINARY(cmp_long);
+
+ VAL_BYTE_UNARY(daa_byte);
+ VAL_BYTE_UNARY(das_byte); /* Fails for 0x9A (out of range anyway) */
+
+ VAL_BYTE_UNARY(dec_byte);
+ VAL_WORD_UNARY(dec_word);
+ VAL_LONG_UNARY(dec_long);
+
+ VAL_BYTE_UNARY(inc_byte);
+ VAL_WORD_UNARY(inc_word);
+ VAL_LONG_UNARY(inc_long);
+
+ VAL_BYTE_BYTE_BINARY(or_byte);
+ VAL_WORD_WORD_BINARY(or_word);
+ VAL_LONG_LONG_BINARY(or_long);
+
+ VAL_BYTE_UNARY(neg_byte);
+ VAL_WORD_UNARY(neg_word);
+ VAL_LONG_UNARY(neg_long);
+
+ VAL_BYTE_UNARY(not_byte);
+ VAL_WORD_UNARY(not_word);
+ VAL_LONG_UNARY(not_long);
+
+ VAL_BYTE_ROTATE(rcl_byte);
+ VAL_WORD_ROTATE(rcl_word);
+ VAL_LONG_ROTATE(rcl_long);
+
+ VAL_BYTE_ROTATE(rcr_byte);
+ VAL_WORD_ROTATE(rcr_word);
+ VAL_LONG_ROTATE(rcr_long);
+
+ VAL_BYTE_ROTATE(rol_byte);
+ VAL_WORD_ROTATE(rol_word);
+ VAL_LONG_ROTATE(rol_long);
+
+ VAL_BYTE_ROTATE(ror_byte);
+ VAL_WORD_ROTATE(ror_word);
+ VAL_LONG_ROTATE(ror_long);
+
+ VAL_BYTE_ROTATE(shl_byte);
+ VAL_WORD_ROTATE(shl_word);
+ VAL_LONG_ROTATE(shl_long);
+
+ VAL_BYTE_ROTATE(shr_byte);
+ VAL_WORD_ROTATE(shr_word);
+ VAL_LONG_ROTATE(shr_long);
+
+ VAL_BYTE_ROTATE(sar_byte);
+ VAL_WORD_ROTATE(sar_word);
+ VAL_LONG_ROTATE(sar_long);
+
+ VAL_WORD_ROTATE_DBL(shld_word);
+ VAL_LONG_ROTATE_DBL(shld_long);
+
+ VAL_WORD_ROTATE_DBL(shrd_word);
+ VAL_LONG_ROTATE_DBL(shrd_long);
+
+ VAL_BYTE_BYTE_BINARY(sbb_byte);
+ VAL_WORD_WORD_BINARY(sbb_word);
+ VAL_LONG_LONG_BINARY(sbb_long);
+
+ VAL_BYTE_BYTE_BINARY(sub_byte);
+ VAL_WORD_WORD_BINARY(sub_word);
+ VAL_LONG_LONG_BINARY(sub_long);
+
+ VAL_BYTE_BYTE_BINARY(xor_byte);
+ VAL_WORD_WORD_BINARY(xor_word);
+ VAL_LONG_LONG_BINARY(xor_long);
+
+ VAL_VOID_BYTE_BINARY(test_byte);
+ VAL_VOID_WORD_BINARY(test_word);
+ VAL_VOID_LONG_BINARY(test_long);
+
+ VAL_BYTE_MUL(imul_byte);
+ VAL_WORD_MUL(imul_word);
+ VAL_LONG_MUL(imul_long);
+
+ VAL_BYTE_MUL(mul_byte);
+ VAL_WORD_MUL(mul_word);
+ VAL_LONG_MUL(mul_long);
+
+ VAL_BYTE_DIV(idiv_byte);
+ VAL_WORD_DIV(idiv_word);
+ VAL_LONG_DIV(idiv_long);
+
+ VAL_BYTE_DIV(div_byte);
+ VAL_WORD_DIV(div_word);
+ VAL_LONG_DIV(div_long);
+
+ return 0;
+}
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for public specific functions.
+* Any application linking against us should only
+* include this header
+*
+****************************************************************************/
+
+#ifndef __X86EMU_X86EMU_H
+#define __X86EMU_X86EMU_H
+
+#ifdef SCITECH
+#include "scitech.h"
+#define X86API _ASMAPI
+#define X86APIP _ASMAPIP
+typedef int X86EMU_pioAddr;
+#else
+#include "x86emu/types.h"
+#define X86API
+#define X86APIP *
+#endif
+#include "x86emu/regs.h"
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+#ifdef PACK
+#pragma PACK /* Don't pack structs with function pointers! */
+#endif
+
+/****************************************************************************
+REMARKS:
+Data structure containing ponters to programmed I/O functions used by the
+emulator. This is used so that the user program can hook all programmed
+I/O for the emulator to handled as necessary by the user program. By
+default the emulator contains simple functions that do not do access the
+hardware in any way. To allow the emualtor access the hardware, you will
+need to override the programmed I/O functions using the X86EMU_setupPioFuncs
+function.
+
+HEADER:
+x86emu.h
+
+MEMBERS:
+inb - Function to read a byte from an I/O port
+inw - Function to read a word from an I/O port
+inl - Function to read a dword from an I/O port
+outb - Function to write a byte to an I/O port
+outw - Function to write a word to an I/O port
+outl - Function to write a dword to an I/O port
+****************************************************************************/
+typedef struct {
+ u8(X86APIP inb) (X86EMU_pioAddr addr);
+ u16(X86APIP inw) (X86EMU_pioAddr addr);
+ u32(X86APIP inl) (X86EMU_pioAddr addr);
+ void (X86APIP outb) (X86EMU_pioAddr addr, u8 val);
+ void (X86APIP outw) (X86EMU_pioAddr addr, u16 val);
+ void (X86APIP outl) (X86EMU_pioAddr addr, u32 val);
+} X86EMU_pioFuncs;
+
+/****************************************************************************
+REMARKS:
+Data structure containing ponters to memory access functions used by the
+emulator. This is used so that the user program can hook all memory
+access functions as necessary for the emulator. By default the emulator
+contains simple functions that only access the internal memory of the
+emulator. If you need specialised functions to handle access to different
+types of memory (ie: hardware framebuffer accesses and BIOS memory access
+etc), you will need to override this using the X86EMU_setupMemFuncs
+function.
+
+HEADER:
+x86emu.h
+
+MEMBERS:
+rdb - Function to read a byte from an address
+rdw - Function to read a word from an address
+rdl - Function to read a dword from an address
+wrb - Function to write a byte to an address
+wrw - Function to write a word to an address
+wrl - Function to write a dword to an address
+****************************************************************************/
+typedef struct {
+ u8(X86APIP rdb) (u32 addr);
+ u16(X86APIP rdw) (u32 addr);
+ u32(X86APIP rdl) (u32 addr);
+ void (X86APIP wrb) (u32 addr, u8 val);
+ void (X86APIP wrw) (u32 addr, u16 val);
+ void (X86APIP wrl) (u32 addr, u32 val);
+} X86EMU_memFuncs;
+
+/****************************************************************************
+ Here are the default memory read and write
+ function in case they are needed as fallbacks.
+***************************************************************************/
+extern u8 X86API rdb(u32 addr);
+extern u16 X86API rdw(u32 addr);
+extern u32 X86API rdl(u32 addr);
+extern void X86API wrb(u32 addr, u8 val);
+extern void X86API wrw(u32 addr, u16 val);
+extern void X86API wrl(u32 addr, u32 val);
+
+#ifdef END_PACK
+#pragma END_PACK
+#endif
+
+/*--------------------- type definitions -----------------------------------*/
+
+typedef void (X86APIP X86EMU_intrFuncs) (int num);
+extern X86EMU_intrFuncs _X86EMU_intrTab[256];
+
+/*-------------------------- Function Prototypes --------------------------*/
+
+#ifdef __cplusplus
+extern "C" { /* Use "C" linkage when in C++ mode */
+#endif
+
+ void X86EMU_setupMemFuncs(X86EMU_memFuncs * funcs);
+ void X86EMU_setupPioFuncs(X86EMU_pioFuncs * funcs);
+ void X86EMU_setupIntrFuncs(X86EMU_intrFuncs funcs[]);
+ void X86EMU_prepareForInt(int num);
+
+/* decode.c */
+
+ void X86EMU_exec(void);
+ void X86EMU_halt_sys(void);
+
+#ifdef DEBUG
+#define HALT_SYS() \
+ printk("halt_sys: file %s, line %d\n", __FILE__, __LINE__), \
+ X86EMU_halt_sys()
+#else
+#define HALT_SYS() X86EMU_halt_sys()
+#endif
+
+/* Debug options */
+
+#define DEBUG_DECODE_F 0x000001 /* print decoded instruction */
+#define DEBUG_TRACE_F 0x000002 /* dump regs before/after execution */
+#define DEBUG_STEP_F 0x000004
+#define DEBUG_DISASSEMBLE_F 0x000008
+#define DEBUG_BREAK_F 0x000010
+#define DEBUG_SVC_F 0x000020
+#define DEBUG_SAVE_IP_CS_F 0x000040
+#define DEBUG_FS_F 0x000080
+#define DEBUG_PROC_F 0x000100
+#define DEBUG_SYSINT_F 0x000200 /* bios system interrupts. */
+#define DEBUG_TRACECALL_F 0x000400
+#define DEBUG_INSTRUMENT_F 0x000800
+#define DEBUG_MEM_TRACE_F 0x001000
+#define DEBUG_IO_TRACE_F 0x002000
+#define DEBUG_TRACECALL_REGS_F 0x004000
+#define DEBUG_DECODE_NOPRINT_F 0x008000
+#define DEBUG_EXIT 0x010000
+#define DEBUG_SYS_F (DEBUG_SVC_F|DEBUG_FS_F|DEBUG_PROC_F)
+
+ void X86EMU_trace_regs(void);
+ void X86EMU_trace_xregs(void);
+ void X86EMU_dump_memory(u16 seg, u16 off, u32 amt);
+ int X86EMU_trace_on(void);
+ int X86EMU_trace_off(void);
+
+#ifdef __cplusplus
+} /* End of "C" linkage for C++ */
+#endif
+#endif /* __X86EMU_X86EMU_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for debug definitions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_DEBUG_H
+#define __X86EMU_DEBUG_H
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+/* checks to be enabled for "runtime" */
+
+#define CHECK_IP_FETCH_F 0x1
+#define CHECK_SP_ACCESS_F 0x2
+#define CHECK_MEM_ACCESS_F 0x4 /*using regular linear pointer */
+#define CHECK_DATA_ACCESS_F 0x8 /*using segment:offset */
+
+#ifdef DEBUG
+#define CHECK_IP_FETCH() (M.x86.check & CHECK_IP_FETCH_F)
+#define CHECK_SP_ACCESS() (M.x86.check & CHECK_SP_ACCESS_F)
+#define CHECK_MEM_ACCESS() (M.x86.check & CHECK_MEM_ACCESS_F)
+#define CHECK_DATA_ACCESS() (M.x86.check & CHECK_DATA_ACCESS_F)
+#else
+#define CHECK_IP_FETCH()
+#define CHECK_SP_ACCESS()
+#define CHECK_MEM_ACCESS()
+#define CHECK_DATA_ACCESS()
+#endif
+
+#ifdef DEBUG
+#define DEBUG_INSTRUMENT() (M.x86.debug & DEBUG_INSTRUMENT_F)
+#define DEBUG_DECODE() (M.x86.debug & DEBUG_DECODE_F)
+#define DEBUG_TRACE() (M.x86.debug & DEBUG_TRACE_F)
+#define DEBUG_STEP() (M.x86.debug & DEBUG_STEP_F)
+#define DEBUG_DISASSEMBLE() (M.x86.debug & DEBUG_DISASSEMBLE_F)
+#define DEBUG_BREAK() (M.x86.debug & DEBUG_BREAK_F)
+#define DEBUG_SVC() (M.x86.debug & DEBUG_SVC_F)
+#define DEBUG_SAVE_IP_CS() (M.x86.debug & DEBUG_SAVE_IP_CS_F)
+
+#define DEBUG_FS() (M.x86.debug & DEBUG_FS_F)
+#define DEBUG_PROC() (M.x86.debug & DEBUG_PROC_F)
+#define DEBUG_SYSINT() (M.x86.debug & DEBUG_SYSINT_F)
+#define DEBUG_TRACECALL() (M.x86.debug & DEBUG_TRACECALL_F)
+#define DEBUG_TRACECALLREGS() (M.x86.debug & DEBUG_TRACECALL_REGS_F)
+#define DEBUG_SYS() (M.x86.debug & DEBUG_SYS_F)
+#define DEBUG_MEM_TRACE() (M.x86.debug & DEBUG_MEM_TRACE_F)
+#define DEBUG_IO_TRACE() (M.x86.debug & DEBUG_IO_TRACE_F)
+#define DEBUG_DECODE_NOPRINT() (M.x86.debug & DEBUG_DECODE_NOPRINT_F)
+#else
+#define DEBUG_INSTRUMENT() 0
+#define DEBUG_DECODE() 0
+#define DEBUG_TRACE() 0
+#define DEBUG_STEP() 0
+#define DEBUG_DISASSEMBLE() 0
+#define DEBUG_BREAK() 0
+#define DEBUG_SVC() 0
+#define DEBUG_SAVE_IP_CS() 0
+#define DEBUG_FS() 0
+#define DEBUG_PROC() 0
+#define DEBUG_SYSINT() 0
+#define DEBUG_TRACECALL() 0
+#define DEBUG_TRACECALLREGS() 0
+#define DEBUG_SYS() 0
+#define DEBUG_MEM_TRACE() 0
+#define DEBUG_IO_TRACE() 0
+#define DEBUG_DECODE_NOPRINT() 0
+#endif
+
+#ifdef DEBUG
+
+#define DECODE_PRINTF(x) if (DEBUG_DECODE()) \
+ x86emu_decode_printf("%s",x)
+#define DECODE_PRINTF2(x,y) if (DEBUG_DECODE()) \
+ x86emu_decode_printf(x,y)
+
+/*
+ * The following allow us to look at the bytes of an instruction. The
+ * first INCR_INSTRN_LEN, is called everytime bytes are consumed in
+ * the decoding process. The SAVE_IP_CS is called initially when the
+ * major opcode of the instruction is accessed.
+ */
+#define INC_DECODED_INST_LEN(x) \
+ if (DEBUG_DECODE()) \
+ x86emu_inc_decoded_inst_len(x)
+
+#define SAVE_IP_CS(x,y) \
+ if (DEBUG_DECODE() | DEBUG_TRACECALL() | DEBUG_BREAK() \
+ | DEBUG_IO_TRACE() | DEBUG_SAVE_IP_CS()) { \
+ M.x86.saved_cs = x; \
+ M.x86.saved_ip = y; \
+ }
+#else
+#define INC_DECODED_INST_LEN(x)
+#define DECODE_PRINTF(x)
+#define DECODE_PRINTF2(x,y)
+#define SAVE_IP_CS(x,y)
+#endif
+
+#ifdef DEBUG
+#define TRACE_REGS() \
+ if (DEBUG_DISASSEMBLE()) { \
+ x86emu_just_disassemble(); \
+ goto EndOfTheInstructionProcedure; \
+ } \
+ if (DEBUG_TRACE() || DEBUG_DECODE()) X86EMU_trace_regs()
+#else
+#define TRACE_REGS()
+#endif
+
+#ifdef DEBUG
+#define SINGLE_STEP() if (DEBUG_STEP()) x86emu_single_step()
+#else
+#define SINGLE_STEP()
+#endif
+
+#define TRACE_AND_STEP() \
+ TRACE_REGS(); \
+ SINGLE_STEP()
+
+#ifdef DEBUG
+#define START_OF_INSTR()
+#define END_OF_INSTR() EndOfTheInstructionProcedure: x86emu_end_instr();
+#define END_OF_INSTR_NO_TRACE() x86emu_end_instr();
+#else
+#define START_OF_INSTR()
+#define END_OF_INSTR()
+#define END_OF_INSTR_NO_TRACE()
+#endif
+
+#ifdef DEBUG
+#define CALL_TRACE(u,v,w,x,s) \
+ if (DEBUG_TRACECALLREGS()) \
+ x86emu_dump_regs(); \
+ if (DEBUG_TRACECALL()) \
+ printk("%04x:%04x: CALL %s%04x:%04x\n", u , v, s, w, x);
+#define RETURN_TRACE(n,u,v) \
+ if (DEBUG_TRACECALLREGS()) \
+ x86emu_dump_regs(); \
+ if (DEBUG_TRACECALL()) \
+ printk("%04x:%04x: %s\n",u,v,n);
+#else
+#define CALL_TRACE(u,v,w,x,s)
+#define RETURN_TRACE(n,u,v)
+#endif
+
+#ifdef DEBUG
+#define DB(x) x
+#else
+#define DB(x)
+#endif
+
+/*-------------------------- Function Prototypes --------------------------*/
+
+#ifdef __cplusplus
+extern "C" { /* Use "C" linkage when in C++ mode */
+#endif
+
+ extern void x86emu_inc_decoded_inst_len(int x);
+ extern void x86emu_decode_printf(const char *x, ...) _X_ATTRIBUTE_PRINTF(1,2);
+ extern void x86emu_just_disassemble(void);
+ extern void x86emu_single_step(void);
+ extern void x86emu_end_instr(void);
+ extern void x86emu_dump_regs(void);
+ extern void x86emu_dump_xregs(void);
+ extern void x86emu_print_int_vect(u16 iv);
+ extern void x86emu_instrument_instruction(void);
+ extern void x86emu_check_ip_access(void);
+ extern void x86emu_check_sp_access(void);
+ extern void x86emu_check_mem_access(u32 p);
+ extern void x86emu_check_data_access(uint s, uint o);
+
+#ifdef __cplusplus
+} /* End of "C" linkage for C++ */
+#endif
+#endif /* __X86EMU_DEBUG_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for instruction decoding logic.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_DECODE_H
+#define __X86EMU_DECODE_H
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+/* Instruction Decoding Stuff */
+
+#define FETCH_DECODE_MODRM(mod,rh,rl) fetch_decode_modrm(&mod,&rh,&rl)
+#define DECODE_RM_BYTE_REGISTER(r) decode_rm_byte_register(r)
+#define DECODE_RM_WORD_REGISTER(r) decode_rm_word_register(r)
+#define DECODE_RM_LONG_REGISTER(r) decode_rm_long_register(r)
+#define DECODE_CLEAR_SEGOVR() M.x86.mode &= ~SYSMODE_CLRMASK
+
+/*-------------------------- Function Prototypes --------------------------*/
+
+#ifdef __cplusplus
+extern "C" { /* Use "C" linkage when in C++ mode */
+#endif
+
+ void x86emu_intr_raise(u8 type);
+ void fetch_decode_modrm(int *mod, int *regh, int *regl);
+ u8 fetch_byte_imm(void);
+ u16 fetch_word_imm(void);
+ u32 fetch_long_imm(void);
+ u8 fetch_data_byte(uint offset);
+ u8 fetch_data_byte_abs(uint segment, uint offset);
+ u16 fetch_data_word(uint offset);
+ u16 fetch_data_word_abs(uint segment, uint offset);
+ u32 fetch_data_long(uint offset);
+ u32 fetch_data_long_abs(uint segment, uint offset);
+ void store_data_byte(uint offset, u8 val);
+ void store_data_byte_abs(uint segment, uint offset, u8 val);
+ void store_data_word(uint offset, u16 val);
+ void store_data_word_abs(uint segment, uint offset, u16 val);
+ void store_data_long(uint offset, u32 val);
+ void store_data_long_abs(uint segment, uint offset, u32 val);
+ u8 *decode_rm_byte_register(int reg);
+ u16 *decode_rm_word_register(int reg);
+ u32 *decode_rm_long_register(int reg);
+ u16 *decode_rm_seg_register(int reg);
+ u32 decode_rm00_address(int rm);
+ u32 decode_rm01_address(int rm);
+ u32 decode_rm10_address(int rm);
+ u32 decode_sib_address(int sib, int mod);
+
+#ifdef __cplusplus
+} /* End of "C" linkage for C++ */
+#endif
+#endif /* __X86EMU_DECODE_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for FPU instruction decoding.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_FPU_H
+#define __X86EMU_FPU_H
+
+#ifdef __cplusplus
+extern "C" { /* Use "C" linkage when in C++ mode */
+#endif
+
+/* these have to be defined, whether 8087 support compiled in or not. */
+
+ extern void x86emuOp_esc_coprocess_d8(u8 op1);
+ extern void x86emuOp_esc_coprocess_d9(u8 op1);
+ extern void x86emuOp_esc_coprocess_da(u8 op1);
+ extern void x86emuOp_esc_coprocess_db(u8 op1);
+ extern void x86emuOp_esc_coprocess_dc(u8 op1);
+ extern void x86emuOp_esc_coprocess_dd(u8 op1);
+ extern void x86emuOp_esc_coprocess_de(u8 op1);
+ extern void x86emuOp_esc_coprocess_df(u8 op1);
+
+#ifdef __cplusplus
+} /* End of "C" linkage for C++ */
+#endif
+#endif /* __X86EMU_FPU_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for FPU register definitions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_FPU_REGS_H
+#define __X86EMU_FPU_REGS_H
+
+#ifdef X86_FPU_SUPPORT
+
+#ifdef PACK
+#pragma PACK
+#endif
+
+/* Basic 8087 register can hold any of the following values: */
+
+union x86_fpu_reg_u {
+ s8 tenbytes[10];
+ double dval;
+ float fval;
+ s16 sval;
+ s32 lval;
+};
+
+struct x86_fpu_reg {
+ union x86_fpu_reg_u reg;
+ char tag;
+};
+
+/*
+ * Since we are not going to worry about the problems of aliasing
+ * registers, every time a register is modified, its result type is
+ * set in the tag fields for that register. If some operation
+ * attempts to access the type in a way inconsistent with its current
+ * storage format, then we flag the operation. If common, we'll
+ * attempt the conversion.
+ */
+
+#define X86_FPU_VALID 0x80
+#define X86_FPU_REGTYP(r) ((r) & 0x7F)
+
+#define X86_FPU_WORD 0x0
+#define X86_FPU_SHORT 0x1
+#define X86_FPU_LONG 0x2
+#define X86_FPU_FLOAT 0x3
+#define X86_FPU_DOUBLE 0x4
+#define X86_FPU_LDBL 0x5
+#define X86_FPU_BSD 0x6
+
+#define X86_FPU_STKTOP 0
+
+struct x86_fpu_registers {
+ struct x86_fpu_reg x86_fpu_stack[8];
+ int x86_fpu_flags;
+ int x86_fpu_config; /* rounding modes, etc. */
+ short x86_fpu_tos, x86_fpu_bos;
+};
+
+#ifdef END_PACK
+#pragma END_PACK
+#endif
+
+/*
+ * There are two versions of the following macro.
+ *
+ * One version is for opcode D9, for which there are more than 32
+ * instructions encoded in the second byte of the opcode.
+ *
+ * The other version, deals with all the other 7 i87 opcodes, for
+ * which there are only 32 strings needed to describe the
+ * instructions.
+ */
+
+#endif /* X86_FPU_SUPPORT */
+
+#ifdef DEBUG
+#define DECODE_PRINTINSTR32(t,mod,rh,rl) \
+ DECODE_PRINTF(t[(mod<<3)+(rh)]);
+#define DECODE_PRINTINSTR256(t,mod,rh,rl) \
+ DECODE_PRINTF(t[(mod<<6)+(rh<<3)+(rl)]);
+#else
+#define DECODE_PRINTINSTR32(t,mod,rh,rl)
+#define DECODE_PRINTINSTR256(t,mod,rh,rl)
+#endif
+
+#endif /* __X86EMU_FPU_REGS_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for operand decoding functions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_OPS_H
+#define __X86EMU_OPS_H
+
+extern void (*x86emu_optab[0x100]) (u8 op1);
+extern void (*x86emu_optab2[0x100]) (u8 op2);
+
+#endif /* __X86EMU_OPS_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: Watcom C++ 10.6 or later
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Inline assembler versions of the primitive operand
+* functions for faster performance. At the moment this is
+* x86 inline assembler, but these functions could be replaced
+* with native inline assembler for each supported processor
+* platform.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_PRIM_ASM_H
+#define __X86EMU_PRIM_ASM_H
+
+#ifdef __WATCOMC__
+
+#ifndef VALIDATE
+#define __HAVE_INLINE_ASSEMBLER__
+#endif
+
+u32 get_flags_asm(void);
+
+#pragma aux get_flags_asm = \
+ "pushf" \
+ "pop eax" \
+ value [eax] \
+ modify exact [eax];
+
+u16 aaa_word_asm(u32 * flags, u16 d);
+
+#pragma aux aaa_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "aaa" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] \
+ value [ax] \
+ modify exact [ax];
+
+u16 aas_word_asm(u32 * flags, u16 d);
+
+#pragma aux aas_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "aas" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] \
+ value [ax] \
+ modify exact [ax];
+
+u16 aad_word_asm(u32 * flags, u16 d);
+
+#pragma aux aad_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "aad" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] \
+ value [ax] \
+ modify exact [ax];
+
+u16 aam_word_asm(u32 * flags, u8 d);
+
+#pragma aux aam_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "aam" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] \
+ value [ax] \
+ modify exact [ax];
+
+u8 adc_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux adc_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "adc al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ value [al] \
+ modify exact [al bl];
+
+u16 adc_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux adc_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "adc ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ value [ax] \
+ modify exact [ax bx];
+
+u32 adc_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux adc_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "adc eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ value [eax] \
+ modify exact [eax ebx];
+
+u8 add_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux add_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "add al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ value [al] \
+ modify exact [al bl];
+
+u16 add_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux add_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "add ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ value [ax] \
+ modify exact [ax bx];
+
+u32 add_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux add_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "add eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ value [eax] \
+ modify exact [eax ebx];
+
+u8 and_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux and_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "and al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ value [al] \
+ modify exact [al bl];
+
+u16 and_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux and_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "and ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ value [ax] \
+ modify exact [ax bx];
+
+u32 and_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux and_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "and eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ value [eax] \
+ modify exact [eax ebx];
+
+u8 cmp_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux cmp_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "cmp al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ value [al] \
+ modify exact [al bl];
+
+u16 cmp_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux cmp_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "cmp ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ value [ax] \
+ modify exact [ax bx];
+
+u32 cmp_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux cmp_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "cmp eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ value [eax] \
+ modify exact [eax ebx];
+
+u8 daa_byte_asm(u32 * flags, u8 d);
+
+#pragma aux daa_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "daa" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] \
+ value [al] \
+ modify exact [al];
+
+u8 das_byte_asm(u32 * flags, u8 d);
+
+#pragma aux das_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "das" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] \
+ value [al] \
+ modify exact [al];
+
+u8 dec_byte_asm(u32 * flags, u8 d);
+
+#pragma aux dec_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "dec al" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] \
+ value [al] \
+ modify exact [al];
+
+u16 dec_word_asm(u32 * flags, u16 d);
+
+#pragma aux dec_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "dec ax" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] \
+ value [ax] \
+ modify exact [ax];
+
+u32 dec_long_asm(u32 * flags, u32 d);
+
+#pragma aux dec_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "dec eax" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] \
+ value [eax] \
+ modify exact [eax];
+
+u8 inc_byte_asm(u32 * flags, u8 d);
+
+#pragma aux inc_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "inc al" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] \
+ value [al] \
+ modify exact [al];
+
+u16 inc_word_asm(u32 * flags, u16 d);
+
+#pragma aux inc_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "inc ax" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] \
+ value [ax] \
+ modify exact [ax];
+
+u32 inc_long_asm(u32 * flags, u32 d);
+
+#pragma aux inc_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "inc eax" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] \
+ value [eax] \
+ modify exact [eax];
+
+u8 or_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux or_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "or al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ value [al] \
+ modify exact [al bl];
+
+u16 or_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux or_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "or ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ value [ax] \
+ modify exact [ax bx];
+
+u32 or_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux or_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "or eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ value [eax] \
+ modify exact [eax ebx];
+
+u8 neg_byte_asm(u32 * flags, u8 d);
+
+#pragma aux neg_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "neg al" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] \
+ value [al] \
+ modify exact [al];
+
+u16 neg_word_asm(u32 * flags, u16 d);
+
+#pragma aux neg_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "neg ax" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] \
+ value [ax] \
+ modify exact [ax];
+
+u32 neg_long_asm(u32 * flags, u32 d);
+
+#pragma aux neg_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "neg eax" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] \
+ value [eax] \
+ modify exact [eax];
+
+u8 not_byte_asm(u32 * flags, u8 d);
+
+#pragma aux not_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "not al" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] \
+ value [al] \
+ modify exact [al];
+
+u16 not_word_asm(u32 * flags, u16 d);
+
+#pragma aux not_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "not ax" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] \
+ value [ax] \
+ modify exact [ax];
+
+u32 not_long_asm(u32 * flags, u32 d);
+
+#pragma aux not_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "not eax" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] \
+ value [eax] \
+ modify exact [eax];
+
+u8 rcl_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux rcl_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "rcl al,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [cl] \
+ value [al] \
+ modify exact [al cl];
+
+u16 rcl_word_asm(u32 * flags, u16 d, u8 s);
+
+#pragma aux rcl_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "rcl ax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [cl] \
+ value [ax] \
+ modify exact [ax cl];
+
+u32 rcl_long_asm(u32 * flags, u32 d, u8 s);
+
+#pragma aux rcl_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "rcl eax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [cl] \
+ value [eax] \
+ modify exact [eax cl];
+
+u8 rcr_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux rcr_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "rcr al,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [cl] \
+ value [al] \
+ modify exact [al cl];
+
+u16 rcr_word_asm(u32 * flags, u16 d, u8 s);
+
+#pragma aux rcr_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "rcr ax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [cl] \
+ value [ax] \
+ modify exact [ax cl];
+
+u32 rcr_long_asm(u32 * flags, u32 d, u8 s);
+
+#pragma aux rcr_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "rcr eax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [cl] \
+ value [eax] \
+ modify exact [eax cl];
+
+u8 rol_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux rol_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "rol al,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [cl] \
+ value [al] \
+ modify exact [al cl];
+
+u16 rol_word_asm(u32 * flags, u16 d, u8 s);
+
+#pragma aux rol_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "rol ax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [cl] \
+ value [ax] \
+ modify exact [ax cl];
+
+u32 rol_long_asm(u32 * flags, u32 d, u8 s);
+
+#pragma aux rol_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "rol eax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [cl] \
+ value [eax] \
+ modify exact [eax cl];
+
+u8 ror_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux ror_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "ror al,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [cl] \
+ value [al] \
+ modify exact [al cl];
+
+u16 ror_word_asm(u32 * flags, u16 d, u8 s);
+
+#pragma aux ror_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "ror ax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [cl] \
+ value [ax] \
+ modify exact [ax cl];
+
+u32 ror_long_asm(u32 * flags, u32 d, u8 s);
+
+#pragma aux ror_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "ror eax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [cl] \
+ value [eax] \
+ modify exact [eax cl];
+
+u8 shl_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux shl_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "shl al,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [cl] \
+ value [al] \
+ modify exact [al cl];
+
+u16 shl_word_asm(u32 * flags, u16 d, u8 s);
+
+#pragma aux shl_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "shl ax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [cl] \
+ value [ax] \
+ modify exact [ax cl];
+
+u32 shl_long_asm(u32 * flags, u32 d, u8 s);
+
+#pragma aux shl_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "shl eax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [cl] \
+ value [eax] \
+ modify exact [eax cl];
+
+u8 shr_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux shr_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "shr al,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [cl] \
+ value [al] \
+ modify exact [al cl];
+
+u16 shr_word_asm(u32 * flags, u16 d, u8 s);
+
+#pragma aux shr_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "shr ax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [cl] \
+ value [ax] \
+ modify exact [ax cl];
+
+u32 shr_long_asm(u32 * flags, u32 d, u8 s);
+
+#pragma aux shr_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "shr eax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [cl] \
+ value [eax] \
+ modify exact [eax cl];
+
+u8 sar_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux sar_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "sar al,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [cl] \
+ value [al] \
+ modify exact [al cl];
+
+u16 sar_word_asm(u32 * flags, u16 d, u8 s);
+
+#pragma aux sar_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "sar ax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [cl] \
+ value [ax] \
+ modify exact [ax cl];
+
+u32 sar_long_asm(u32 * flags, u32 d, u8 s);
+
+#pragma aux sar_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "sar eax,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [cl] \
+ value [eax] \
+ modify exact [eax cl];
+
+u16 shld_word_asm(u32 * flags, u16 d, u16 fill, u8 s);
+
+#pragma aux shld_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "shld ax,dx,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [dx] [cl] \
+ value [ax] \
+ modify exact [ax dx cl];
+
+u32 shld_long_asm(u32 * flags, u32 d, u32 fill, u8 s);
+
+#pragma aux shld_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "shld eax,edx,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [edx] [cl] \
+ value [eax] \
+ modify exact [eax edx cl];
+
+u16 shrd_word_asm(u32 * flags, u16 d, u16 fill, u8 s);
+
+#pragma aux shrd_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "shrd ax,dx,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [dx] [cl] \
+ value [ax] \
+ modify exact [ax dx cl];
+
+u32 shrd_long_asm(u32 * flags, u32 d, u32 fill, u8 s);
+
+#pragma aux shrd_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "shrd eax,edx,cl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [edx] [cl] \
+ value [eax] \
+ modify exact [eax edx cl];
+
+u8 sbb_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux sbb_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "sbb al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ value [al] \
+ modify exact [al bl];
+
+u16 sbb_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux sbb_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "sbb ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ value [ax] \
+ modify exact [ax bx];
+
+u32 sbb_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux sbb_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "sbb eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ value [eax] \
+ modify exact [eax ebx];
+
+u8 sub_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux sub_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "sub al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ value [al] \
+ modify exact [al bl];
+
+u16 sub_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux sub_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "sub ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ value [ax] \
+ modify exact [ax bx];
+
+u32 sub_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux sub_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "sub eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ value [eax] \
+ modify exact [eax ebx];
+
+void test_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux test_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "test al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ modify exact [al bl];
+
+void test_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux test_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "test ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ modify exact [ax bx];
+
+void test_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux test_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "test eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ modify exact [eax ebx];
+
+u8 xor_byte_asm(u32 * flags, u8 d, u8 s);
+
+#pragma aux xor_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "xor al,bl" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [al] [bl] \
+ value [al] \
+ modify exact [al bl];
+
+u16 xor_word_asm(u32 * flags, u16 d, u16 s);
+
+#pragma aux xor_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "xor ax,bx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [ax] [bx] \
+ value [ax] \
+ modify exact [ax bx];
+
+u32 xor_long_asm(u32 * flags, u32 d, u32 s);
+
+#pragma aux xor_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "xor eax,ebx" \
+ "pushf" \
+ "pop [edi]" \
+ parm [edi] [eax] [ebx] \
+ value [eax] \
+ modify exact [eax ebx];
+
+void imul_byte_asm(u32 * flags, u16 * ax, u8 d, u8 s);
+
+#pragma aux imul_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "imul bl" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],ax" \
+ parm [edi] [esi] [al] [bl] \
+ modify exact [esi ax bl];
+
+void imul_word_asm(u32 * flags, u16 * ax, u16 * dx, u16 d, u16 s);
+
+#pragma aux imul_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "imul bx" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],ax" \
+ "mov [ecx],dx" \
+ parm [edi] [esi] [ecx] [ax] [bx]\
+ modify exact [esi edi ax bx dx];
+
+void imul_long_asm(u32 * flags, u32 * eax, u32 * edx, u32 d, u32 s);
+
+#pragma aux imul_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "imul ebx" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],eax" \
+ "mov [ecx],edx" \
+ parm [edi] [esi] [ecx] [eax] [ebx] \
+ modify exact [esi edi eax ebx edx];
+
+void mul_byte_asm(u32 * flags, u16 * ax, u8 d, u8 s);
+
+#pragma aux mul_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "mul bl" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],ax" \
+ parm [edi] [esi] [al] [bl] \
+ modify exact [esi ax bl];
+
+void mul_word_asm(u32 * flags, u16 * ax, u16 * dx, u16 d, u16 s);
+
+#pragma aux mul_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "mul bx" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],ax" \
+ "mov [ecx],dx" \
+ parm [edi] [esi] [ecx] [ax] [bx]\
+ modify exact [esi edi ax bx dx];
+
+void mul_long_asm(u32 * flags, u32 * eax, u32 * edx, u32 d, u32 s);
+
+#pragma aux mul_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "mul ebx" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],eax" \
+ "mov [ecx],edx" \
+ parm [edi] [esi] [ecx] [eax] [ebx] \
+ modify exact [esi edi eax ebx edx];
+
+void idiv_byte_asm(u32 * flags, u8 * al, u8 * ah, u16 d, u8 s);
+
+#pragma aux idiv_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "idiv bl" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],al" \
+ "mov [ecx],ah" \
+ parm [edi] [esi] [ecx] [ax] [bl]\
+ modify exact [esi edi ax bl];
+
+void idiv_word_asm(u32 * flags, u16 * ax, u16 * dx, u16 dlo, u16 dhi, u16 s);
+
+#pragma aux idiv_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "idiv bx" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],ax" \
+ "mov [ecx],dx" \
+ parm [edi] [esi] [ecx] [ax] [dx] [bx]\
+ modify exact [esi edi ax dx bx];
+
+void idiv_long_asm(u32 * flags, u32 * eax, u32 * edx, u32 dlo, u32 dhi, u32 s);
+
+#pragma aux idiv_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "idiv ebx" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],eax" \
+ "mov [ecx],edx" \
+ parm [edi] [esi] [ecx] [eax] [edx] [ebx]\
+ modify exact [esi edi eax edx ebx];
+
+void div_byte_asm(u32 * flags, u8 * al, u8 * ah, u16 d, u8 s);
+
+#pragma aux div_byte_asm = \
+ "push [edi]" \
+ "popf" \
+ "div bl" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],al" \
+ "mov [ecx],ah" \
+ parm [edi] [esi] [ecx] [ax] [bl]\
+ modify exact [esi edi ax bl];
+
+void div_word_asm(u32 * flags, u16 * ax, u16 * dx, u16 dlo, u16 dhi, u16 s);
+
+#pragma aux div_word_asm = \
+ "push [edi]" \
+ "popf" \
+ "div bx" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],ax" \
+ "mov [ecx],dx" \
+ parm [edi] [esi] [ecx] [ax] [dx] [bx]\
+ modify exact [esi edi ax dx bx];
+
+void div_long_asm(u32 * flags, u32 * eax, u32 * edx, u32 dlo, u32 dhi, u32 s);
+
+#pragma aux div_long_asm = \
+ "push [edi]" \
+ "popf" \
+ "div ebx" \
+ "pushf" \
+ "pop [edi]" \
+ "mov [esi],eax" \
+ "mov [ecx],edx" \
+ parm [edi] [esi] [ecx] [eax] [edx] [ebx]\
+ modify exact [esi edi eax edx ebx];
+
+#endif
+
+#endif /* __X86EMU_PRIM_ASM_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for primitive operation functions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_PRIM_OPS_H
+#define __X86EMU_PRIM_OPS_H
+
+#ifdef __cplusplus
+extern "C" { /* Use "C" linkage when in C++ mode */
+#endif
+
+ u16 aaa_word(u16 d);
+ u16 aas_word(u16 d);
+ u16 aad_word(u16 d);
+ u16 aam_word(u8 d);
+ u8 adc_byte(u8 d, u8 s);
+ u16 adc_word(u16 d, u16 s);
+ u32 adc_long(u32 d, u32 s);
+ u8 add_byte(u8 d, u8 s);
+ u16 add_word(u16 d, u16 s);
+ u32 add_long(u32 d, u32 s);
+ u8 and_byte(u8 d, u8 s);
+ u16 and_word(u16 d, u16 s);
+ u32 and_long(u32 d, u32 s);
+ u8 cmp_byte(u8 d, u8 s);
+ u16 cmp_word(u16 d, u16 s);
+ u32 cmp_long(u32 d, u32 s);
+ u8 daa_byte(u8 d);
+ u8 das_byte(u8 d);
+ u8 dec_byte(u8 d);
+ u16 dec_word(u16 d);
+ u32 dec_long(u32 d);
+ u8 inc_byte(u8 d);
+ u16 inc_word(u16 d);
+ u32 inc_long(u32 d);
+ u8 or_byte(u8 d, u8 s);
+ u16 or_word(u16 d, u16 s);
+ u32 or_long(u32 d, u32 s);
+ u8 neg_byte(u8 s);
+ u16 neg_word(u16 s);
+ u32 neg_long(u32 s);
+ u8 not_byte(u8 s);
+ u16 not_word(u16 s);
+ u32 not_long(u32 s);
+ u8 rcl_byte(u8 d, u8 s);
+ u16 rcl_word(u16 d, u8 s);
+ u32 rcl_long(u32 d, u8 s);
+ u8 rcr_byte(u8 d, u8 s);
+ u16 rcr_word(u16 d, u8 s);
+ u32 rcr_long(u32 d, u8 s);
+ u8 rol_byte(u8 d, u8 s);
+ u16 rol_word(u16 d, u8 s);
+ u32 rol_long(u32 d, u8 s);
+ u8 ror_byte(u8 d, u8 s);
+ u16 ror_word(u16 d, u8 s);
+ u32 ror_long(u32 d, u8 s);
+ u8 shl_byte(u8 d, u8 s);
+ u16 shl_word(u16 d, u8 s);
+ u32 shl_long(u32 d, u8 s);
+ u8 shr_byte(u8 d, u8 s);
+ u16 shr_word(u16 d, u8 s);
+ u32 shr_long(u32 d, u8 s);
+ u8 sar_byte(u8 d, u8 s);
+ u16 sar_word(u16 d, u8 s);
+ u32 sar_long(u32 d, u8 s);
+ u16 shld_word(u16 d, u16 fill, u8 s);
+ u32 shld_long(u32 d, u32 fill, u8 s);
+ u16 shrd_word(u16 d, u16 fill, u8 s);
+ u32 shrd_long(u32 d, u32 fill, u8 s);
+ u8 sbb_byte(u8 d, u8 s);
+ u16 sbb_word(u16 d, u16 s);
+ u32 sbb_long(u32 d, u32 s);
+ u8 sub_byte(u8 d, u8 s);
+ u16 sub_word(u16 d, u16 s);
+ u32 sub_long(u32 d, u32 s);
+ void test_byte(u8 d, u8 s);
+ void test_word(u16 d, u16 s);
+ void test_long(u32 d, u32 s);
+ u8 xor_byte(u8 d, u8 s);
+ u16 xor_word(u16 d, u16 s);
+ u32 xor_long(u32 d, u32 s);
+ void imul_byte(u8 s);
+ void imul_word(u16 s);
+ void imul_long(u32 s);
+ void imul_long_direct(u32 * res_lo, u32 * res_hi, u32 d, u32 s);
+ void mul_byte(u8 s);
+ void mul_word(u16 s);
+ void mul_long(u32 s);
+ void idiv_byte(u8 s);
+ void idiv_word(u16 s);
+ void idiv_long(u32 s);
+ void div_byte(u8 s);
+ void div_word(u16 s);
+ void div_long(u32 s);
+ void ins(int size);
+ void outs(int size);
+ u16 mem_access_word(int addr);
+ void push_word(u16 w);
+ void push_long(u32 w);
+ u16 pop_word(void);
+ u32 pop_long(void);
+ void cpuid(void);
+
+#ifdef __cplusplus
+} /* End of "C" linkage for C++ */
+#endif
+#endif /* __X86EMU_PRIM_OPS_H */
--- /dev/null
+/****************************************************************************
+*
+* Inline helpers for x86emu
+*
+* Copyright (C) 2008 Bart Trojanowski, Symbio Technologies, LLC
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: GNU C
+* Environment: GCC on i386 or x86-64
+* Developer: Bart Trojanowski
+*
+* Description: This file defines a few x86 macros that can be used by the
+* emulator to execute native instructions.
+*
+* For PIC vs non-PIC code refer to:
+* http://sam.zoy.org/blog/2007-04-13-shlib-with-non-pic-code-have-inline-assembly-and-pic-mix-well
+*
+****************************************************************************/
+#ifndef __X86EMU_PRIM_X86_GCC_H
+#define __X86EMU_PRIM_X86_GCC_H
+
+#include "x86emu/types.h"
+
+#if !defined(__GNUC__) || !(defined (__i386__) || defined(__i386) || defined(__AMD64__) || defined(__amd64__))
+#error This file is intended to be used by gcc on i386 or x86-64 system
+#endif
+
+#if defined(__PIC__) && defined(__i386__)
+
+#define X86EMU_HAS_HW_CPUID 1
+static inline void
+hw_cpuid(u32 * a, u32 * b, u32 * c, u32 * d)
+{
+ __asm__ __volatile__("pushl %%ebx \n\t"
+ "cpuid \n\t"
+ "movl %%ebx, %1 \n\t"
+ "popl %%ebx \n\t":"=a"(*a), "=r"(*b),
+ "=c"(*c), "=d"(*d)
+ :"a"(*a), "c"(*c)
+ :"cc");
+}
+
+#else /* ! (__PIC__ && __i386__) */
+
+#define x86EMU_HAS_HW_CPUID 1
+static inline void
+hw_cpuid(u32 * a, u32 * b, u32 * c, u32 * d)
+{
+ __asm__ __volatile__("cpuid":"=a"(*a), "=b"(*b), "=c"(*c), "=d"(*d)
+ :"a"(*a), "c"(*c)
+ :"cc");
+}
+
+#endif /* __PIC__ && __i386__ */
+
+#endif /* __X86EMU_PRIM_X86_GCC_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for x86 register definitions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_REGS_H
+#define __X86EMU_REGS_H
+
+#include <X11/Xfuncproto.h>
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+#ifdef PACK
+#pragma PACK
+#endif
+
+/*
+ * General EAX, EBX, ECX, EDX type registers. Note that for
+ * portability, and speed, the issue of byte swapping is not addressed
+ * in the registers. All registers are stored in the default format
+ * available on the host machine. The only critical issue is that the
+ * registers should line up EXACTLY in the same manner as they do in
+ * the 386. That is:
+ *
+ * EAX & 0xff === AL
+ * EAX & 0xffff == AX
+ *
+ * etc. The result is that alot of the calculations can then be
+ * done using the native instruction set fully.
+ */
+
+#ifdef __BIG_ENDIAN__
+
+typedef struct {
+ u32 e_reg;
+} I32_reg_t;
+
+typedef struct {
+ u16 filler0, x_reg;
+} I16_reg_t;
+
+typedef struct {
+ u8 filler0, filler1, h_reg, l_reg;
+} I8_reg_t;
+
+#else /* !__BIG_ENDIAN__ */
+
+typedef struct {
+ u32 e_reg;
+} I32_reg_t;
+
+typedef struct {
+ u16 x_reg;
+} I16_reg_t;
+
+typedef struct {
+ u8 l_reg, h_reg;
+} I8_reg_t;
+
+#endif /* BIG_ENDIAN */
+
+typedef union {
+ I32_reg_t I32_reg;
+ I16_reg_t I16_reg;
+ I8_reg_t I8_reg;
+} i386_general_register;
+
+struct i386_general_regs {
+ i386_general_register A, B, C, D;
+};
+
+typedef struct i386_general_regs Gen_reg_t;
+
+struct i386_special_regs {
+ i386_general_register SP, BP, SI, DI, IP;
+ u32 FLAGS;
+};
+
+/*
+ * Segment registers here represent the 16 bit quantities
+ * CS, DS, ES, SS.
+ */
+
+#if defined(__sun) && defined(CS) /* avoid conflicts with Solaris sys/regset.h */
+# undef CS
+# undef DS
+# undef SS
+# undef ES
+# undef FS
+# undef GS
+#endif
+
+struct i386_segment_regs {
+ u16 CS, DS, SS, ES, FS, GS;
+};
+
+/* 8 bit registers */
+#define R_AH gen.A.I8_reg.h_reg
+#define R_AL gen.A.I8_reg.l_reg
+#define R_BH gen.B.I8_reg.h_reg
+#define R_BL gen.B.I8_reg.l_reg
+#define R_CH gen.C.I8_reg.h_reg
+#define R_CL gen.C.I8_reg.l_reg
+#define R_DH gen.D.I8_reg.h_reg
+#define R_DL gen.D.I8_reg.l_reg
+
+/* 16 bit registers */
+#define R_AX gen.A.I16_reg.x_reg
+#define R_BX gen.B.I16_reg.x_reg
+#define R_CX gen.C.I16_reg.x_reg
+#define R_DX gen.D.I16_reg.x_reg
+
+/* 32 bit extended registers */
+#define R_EAX gen.A.I32_reg.e_reg
+#define R_EBX gen.B.I32_reg.e_reg
+#define R_ECX gen.C.I32_reg.e_reg
+#define R_EDX gen.D.I32_reg.e_reg
+
+/* special registers */
+#define R_SP spc.SP.I16_reg.x_reg
+#define R_BP spc.BP.I16_reg.x_reg
+#define R_SI spc.SI.I16_reg.x_reg
+#define R_DI spc.DI.I16_reg.x_reg
+#define R_IP spc.IP.I16_reg.x_reg
+#define R_FLG spc.FLAGS
+
+/* special registers */
+#define R_ESP spc.SP.I32_reg.e_reg
+#define R_EBP spc.BP.I32_reg.e_reg
+#define R_ESI spc.SI.I32_reg.e_reg
+#define R_EDI spc.DI.I32_reg.e_reg
+#define R_EIP spc.IP.I32_reg.e_reg
+#define R_EFLG spc.FLAGS
+
+/* segment registers */
+#define R_CS seg.CS
+#define R_DS seg.DS
+#define R_SS seg.SS
+#define R_ES seg.ES
+#define R_FS seg.FS
+#define R_GS seg.GS
+
+/* flag conditions */
+#define FB_CF 0x0001 /* CARRY flag */
+#define FB_PF 0x0004 /* PARITY flag */
+#define FB_AF 0x0010 /* AUX flag */
+#define FB_ZF 0x0040 /* ZERO flag */
+#define FB_SF 0x0080 /* SIGN flag */
+#define FB_TF 0x0100 /* TRAP flag */
+#define FB_IF 0x0200 /* INTERRUPT ENABLE flag */
+#define FB_DF 0x0400 /* DIR flag */
+#define FB_OF 0x0800 /* OVERFLOW flag */
+
+/* 80286 and above always have bit#1 set */
+#define F_ALWAYS_ON (0x0002) /* flag bits always on */
+
+/*
+ * Define a mask for only those flag bits we will ever pass back
+ * (via PUSHF)
+ */
+#define F_MSK (FB_CF|FB_PF|FB_AF|FB_ZF|FB_SF|FB_TF|FB_IF|FB_DF|FB_OF)
+
+/* following bits masked in to a 16bit quantity */
+
+#define F_CF 0x0001 /* CARRY flag */
+#define F_PF 0x0004 /* PARITY flag */
+#define F_AF 0x0010 /* AUX flag */
+#define F_ZF 0x0040 /* ZERO flag */
+#define F_SF 0x0080 /* SIGN flag */
+#define F_TF 0x0100 /* TRAP flag */
+#define F_IF 0x0200 /* INTERRUPT ENABLE flag */
+#define F_DF 0x0400 /* DIR flag */
+#define F_OF 0x0800 /* OVERFLOW flag */
+
+#define TOGGLE_FLAG(flag) (M.x86.R_FLG ^= (flag))
+#define SET_FLAG(flag) (M.x86.R_FLG |= (flag))
+#define CLEAR_FLAG(flag) (M.x86.R_FLG &= ~(flag))
+#define ACCESS_FLAG(flag) (M.x86.R_FLG & (flag))
+#define CLEARALL_FLAG(m) (M.x86.R_FLG = 0)
+
+#define CONDITIONAL_SET_FLAG(COND,FLAG) \
+ if (COND) SET_FLAG(FLAG); else CLEAR_FLAG(FLAG)
+
+#define F_PF_CALC 0x010000 /* PARITY flag has been calced */
+#define F_ZF_CALC 0x020000 /* ZERO flag has been calced */
+#define F_SF_CALC 0x040000 /* SIGN flag has been calced */
+
+#define F_ALL_CALC 0xff0000 /* All have been calced */
+
+/*
+ * Emulator machine state.
+ * Segment usage control.
+ */
+#define SYSMODE_SEG_DS_SS 0x00000001
+#define SYSMODE_SEGOVR_CS 0x00000002
+#define SYSMODE_SEGOVR_DS 0x00000004
+#define SYSMODE_SEGOVR_ES 0x00000008
+#define SYSMODE_SEGOVR_FS 0x00000010
+#define SYSMODE_SEGOVR_GS 0x00000020
+#define SYSMODE_SEGOVR_SS 0x00000040
+#define SYSMODE_PREFIX_REPE 0x00000080
+#define SYSMODE_PREFIX_REPNE 0x00000100
+#define SYSMODE_PREFIX_DATA 0x00000200
+#define SYSMODE_PREFIX_ADDR 0x00000400
+#define SYSMODE_INTR_PENDING 0x10000000
+#define SYSMODE_EXTRN_INTR 0x20000000
+#define SYSMODE_HALTED 0x40000000
+
+#define SYSMODE_SEGMASK (SYSMODE_SEG_DS_SS | \
+ SYSMODE_SEGOVR_CS | \
+ SYSMODE_SEGOVR_DS | \
+ SYSMODE_SEGOVR_ES | \
+ SYSMODE_SEGOVR_FS | \
+ SYSMODE_SEGOVR_GS | \
+ SYSMODE_SEGOVR_SS)
+#define SYSMODE_CLRMASK (SYSMODE_SEG_DS_SS | \
+ SYSMODE_SEGOVR_CS | \
+ SYSMODE_SEGOVR_DS | \
+ SYSMODE_SEGOVR_ES | \
+ SYSMODE_SEGOVR_FS | \
+ SYSMODE_SEGOVR_GS | \
+ SYSMODE_SEGOVR_SS | \
+ SYSMODE_PREFIX_DATA | \
+ SYSMODE_PREFIX_ADDR)
+
+#define INTR_SYNCH 0x1
+#define INTR_ASYNCH 0x2
+#define INTR_HALTED 0x4
+
+typedef struct {
+ struct i386_general_regs gen;
+ struct i386_special_regs spc;
+ struct i386_segment_regs seg;
+ /*
+ * MODE contains information on:
+ * REPE prefix 2 bits repe,repne
+ * SEGMENT overrides 5 bits normal,DS,SS,CS,ES
+ * Delayed flag set 3 bits (zero, signed, parity)
+ * reserved 6 bits
+ * interrupt # 8 bits instruction raised interrupt
+ * BIOS video segregs 4 bits
+ * Interrupt Pending 1 bits
+ * Extern interrupt 1 bits
+ * Halted 1 bits
+ */
+ u32 mode;
+ volatile int intr; /* mask of pending interrupts */
+ int debug;
+#ifdef DEBUG
+ int check;
+ u16 saved_ip;
+ u16 saved_cs;
+ int enc_pos;
+ int enc_str_pos;
+ char decode_buf[32]; /* encoded byte stream */
+ char decoded_buf[256]; /* disassembled strings */
+#endif
+ u8 intno;
+ u8 __pad[3];
+} X86EMU_regs;
+
+/****************************************************************************
+REMARKS:
+Structure maintaining the emulator machine state.
+
+MEMBERS:
+mem_base - Base real mode memory for the emulator
+mem_size - Size of the real mode memory block for the emulator
+private - private data pointer
+x86 - X86 registers
+****************************************************************************/
+typedef struct {
+ unsigned long mem_base;
+ unsigned long mem_size;
+ void *private;
+ X86EMU_regs x86;
+} X86EMU_sysEnv;
+
+#ifdef END_PACK
+#pragma END_PACK
+#endif
+
+/*----------------------------- Global Variables --------------------------*/
+
+#ifdef __cplusplus
+extern "C" { /* Use "C" linkage when in C++ mode */
+#endif
+
+/* Global emulator machine state.
+ *
+ * We keep it global to avoid pointer dereferences in the code for speed.
+ */
+
+ extern X86EMU_sysEnv _X86EMU_env;
+#define M _X86EMU_env
+
+/*-------------------------- Function Prototypes --------------------------*/
+
+/* Function to log information at runtime */
+
+ void printk(const char *fmt, ...)
+ _X_ATTRIBUTE_PRINTF(1, 2);
+
+#ifdef __cplusplus
+} /* End of "C" linkage for C++ */
+#endif
+#endif /* __X86EMU_REGS_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for x86 emulator type definitions.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_TYPES_H
+#define __X86EMU_TYPES_H
+
+#ifndef NO_SYS_HEADERS
+#include <sys/types.h>
+#endif
+
+/*
+ * The following kludge is an attempt to work around typedef conflicts with
+ * <sys/types.h>.
+ */
+#define u8 x86emuu8
+#define u16 x86emuu16
+#define u32 x86emuu32
+#define u64 x86emuu64
+#define s8 x86emus8
+#define s16 x86emus16
+#define s32 x86emus32
+#define s64 x86emus64
+#define uint x86emuuint
+#define sint x86emusint
+
+/*---------------------- Macros and type definitions ----------------------*/
+
+#include <stdint.h>
+#include <inttypes.h>
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+typedef int8_t s8;
+typedef int16_t s16;
+typedef int32_t s32;
+typedef int64_t s64;
+
+typedef unsigned int uint;
+typedef int sint;
+
+typedef u16 X86EMU_pioAddr;
+
+#endif /* __X86EMU_TYPES_H */
--- /dev/null
+/****************************************************************************
+*
+* Realmode X86 Emulator Library
+*
+* Copyright (C) 1996-1999 SciTech Software, Inc.
+* Copyright (C) David Mosberger-Tang
+* Copyright (C) 1999 Egbert Eich
+*
+* ========================================================================
+*
+* Permission to use, copy, modify, distribute, and sell this software and
+* its documentation for any purpose is hereby granted without fee,
+* provided that the above copyright notice appear in all copies and that
+* both that copyright notice and this permission notice appear in
+* supporting documentation, and that the name of the authors not be used
+* in advertising or publicity pertaining to distribution of the software
+* without specific, written prior permission. The authors makes no
+* representations about the suitability of this software for any purpose.
+* It is provided "as is" without express or implied warranty.
+*
+* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+* PERFORMANCE OF THIS SOFTWARE.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: Header file for system specific functions. These functions
+* are always compiled and linked in the OS depedent libraries,
+* and never in a binary portable driver.
+*
+****************************************************************************/
+
+#ifndef __X86EMU_X86EMUI_H
+#define __X86EMU_X86EMUI_H
+
+/* If we are compiling in C++ mode, we can compile some functions as
+ * inline to increase performance (however the code size increases quite
+ * dramatically in this case).
+ */
+
+#if defined(__cplusplus)
+#define _INLINE inline
+#else
+#define _INLINE static
+#endif
+
+/* Get rid of unused parameters in C++ compilation mode */
+
+#ifdef __cplusplus
+#define X86EMU_UNUSED(v)
+#else
+#define X86EMU_UNUSED(v) v
+#endif
+
+#include "x86emu.h"
+#include "x86emu/regs.h"
+#include "x86emu/debug.h"
+#include "x86emu/decode.h"
+#include "x86emu/ops.h"
+#include "x86emu/prim_ops.h"
+#include "x86emu/fpu.h"
+#include "x86emu/fpu_regs.h"
+
+#ifndef NO_SYS_HEADERS
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+/* avoid conflicts with Solaris sys/regset.h */
+# if defined(__sun) && defined(CS)
+# undef CS
+# undef DS
+# undef SS
+# undef ES
+# undef FS
+# undef GS
+# endif
+#endif /* NO_SYS_HEADERS */
+
+/*--------------------------- Inline Functions ----------------------------*/
+
+#ifdef __cplusplus
+extern "C" { /* Use "C" linkage when in C++ mode */
+#endif
+
+ extern u8(X86APIP sys_rdb) (u32 addr);
+ extern u16(X86APIP sys_rdw) (u32 addr);
+ extern u32(X86APIP sys_rdl) (u32 addr);
+ extern void (X86APIP sys_wrb) (u32 addr, u8 val);
+ extern void (X86APIP sys_wrw) (u32 addr, u16 val);
+ extern void (X86APIP sys_wrl) (u32 addr, u32 val);
+
+ extern u8(X86APIP sys_inb) (X86EMU_pioAddr addr);
+ extern u16(X86APIP sys_inw) (X86EMU_pioAddr addr);
+ extern u32(X86APIP sys_inl) (X86EMU_pioAddr addr);
+ extern void (X86APIP sys_outb) (X86EMU_pioAddr addr, u8 val);
+ extern void (X86APIP sys_outw) (X86EMU_pioAddr addr, u16 val);
+ extern void (X86APIP sys_outl) (X86EMU_pioAddr addr, u32 val);
+
+#ifdef __cplusplus
+} /* End of "C" linkage for C++ */
+#endif
+#endif /* __X86EMU_X86EMUI_H */
public / ack.git / commitdiff