1 The source code to MAME is provided under the GNU General Public License version 2 or later as of Git revision 35ccf865aa366845b574e1fdbc71c4866b3d6a0f and the release of MAME 0.172. Source files may also be licensed as specified in the file header. This license does not apply to prior versions of MAME.
3 MAME is a registered trademark of Gregory Ember.
5 The text of version 2 of the GNU General Public License follows.
7 Copyright (C) 1997-2019 MAMEDev and contributors
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License along
20 with this program; if not, write to the Free Software Foundation, Inc.,
21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 GNU GENERAL PUBLIC LICENSE
24 ==========================
27 > Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
28 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 Everyone is permitted to copy and distribute verbatim copies
30 of this license document, but changing it is not allowed.
34 The licenses for most software are designed to take away your
35 freedom to share and change it. By contrast, the GNU General Public
36 License is intended to guarantee your freedom to share and change free
37 software--to make sure the software is free for all its users. This
38 General Public License applies to most of the Free Software
39 Foundation's software and to any other program whose authors commit to
40 using it. (Some other Free Software Foundation software is covered by
41 the GNU Lesser General Public License instead.) You can apply it to
44 When we speak of free software, we are referring to freedom, not
45 price. Our General Public Licenses are designed to make sure that you
46 have the freedom to distribute copies of free software (and charge for
47 this service if you wish), that you receive source code or can get it
48 if you want it, that you can change the software or use pieces of it
49 in new free programs; and that you know you can do these things.
51 To protect your rights, we need to make restrictions that forbid
52 anyone to deny you these rights or to ask you to surrender the rights.
53 These restrictions translate to certain responsibilities for you if you
54 distribute copies of the software, or if you modify it.
56 For example, if you distribute copies of such a program, whether
57 gratis or for a fee, you must give the recipients all the rights that
58 you have. You must make sure that they, too, receive or can get the
59 source code. And you must show them these terms so they know their
62 We protect your rights with two steps: (1) copyright the software, and
63 (2) offer you this license which gives you legal permission to copy,
64 distribute and/or modify the software.
66 Also, for each author's protection and ours, we want to make certain
67 that everyone understands that there is no warranty for this free
68 software. If the software is modified by someone else and passed on, we
69 want its recipients to know that what they have is not the original, so
70 that any problems introduced by others will not reflect on the original
73 Finally, any free program is threatened constantly by software
74 patents. We wish to avoid the danger that redistributors of a free
75 program will individually obtain patent licenses, in effect making the
76 program proprietary. To prevent this, we have made it clear that any
77 patent must be licensed for everyone's free use or not licensed at all.
79 The precise terms and conditions for copying, distribution and
83 # GNU GENERAL PUBLIC LICENSE #
84 ## TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION ##
86 - *0\.* This License applies to any program or other work which contains
87 a notice placed by the copyright holder saying it may be distributed
88 under the terms of this General Public License. The "Program", below,
89 refers to any such program or work, and a "work based on the Program"
90 means either the Program or any derivative work under copyright law:
91 that is to say, a work containing the Program or a portion of it,
92 either verbatim or with modifications and/or translated into another
93 language. (Hereinafter, translation is included without limitation in
94 the term "modification".) Each licensee is addressed as "you".
96 Activities other than copying, distribution and modification are not
97 covered by this License; they are outside its scope. The act of
98 running the Program is not restricted, and the output from the Program
99 is covered only if its contents constitute a work based on the
100 Program (independent of having been made by running the Program).
101 Whether that is true depends on what the Program does.
103 - 1\. You may copy and distribute verbatim copies of the Program's
104 source code as you receive it, in any medium, provided that you
105 conspicuously and appropriately publish on each copy an appropriate
106 copyright notice and disclaimer of warranty; keep intact all the
107 notices that refer to this License and to the absence of any warranty;
108 and give any other recipients of the Program a copy of this License
109 along with the Program.
111 You may charge a fee for the physical act of transferring a copy, and
112 you may at your option offer warranty protection in exchange for a fee.
114 - 2\. You may modify your copy or copies of the Program or any portion
115 of it, thus forming a work based on the Program, and copy and
116 distribute such modifications or work under the terms of Section 1
117 above, provided that you also meet all of these conditions:
119 a) You must cause the modified files to carry prominent notices
120 stating that you changed the files and the date of any change.
122 b) You must cause any work that you distribute or publish, that in
123 whole or in part contains or is derived from the Program or any
124 part thereof, to be licensed as a whole at no charge to all third
125 parties under the terms of this License.
127 c) If the modified program normally reads commands interactively
128 when run, you must cause it, when started running for such
129 interactive use in the most ordinary way, to print or display an
130 announcement including an appropriate copyright notice and a
131 notice that there is no warranty (or else, saying that you provide
132 a warranty) and that users may redistribute the program under
133 these conditions, and telling the user how to view a copy of this
134 License. (Exception: if the Program itself is interactive but
135 does not normally print such an announcement, your work based on
136 the Program is not required to print an announcement.)
138 These requirements apply to the modified work as a whole. If
139 identifiable sections of that work are not derived from the Program,
140 and can be reasonably considered independent and separate works in
141 themselves, then this License, and its terms, do not apply to those
142 sections when you distribute them as separate works. But when you
143 distribute the same sections as part of a whole which is a work based
144 on the Program, the distribution of the whole must be on the terms of
145 this License, whose permissions for other licensees extend to the
146 entire whole, and thus to each and every part regardless of who wrote it.
148 Thus, it is not the intent of this section to claim rights or contest
149 your rights to work written entirely by you; rather, the intent is to
150 exercise the right to control the distribution of derivative or
151 collective works based on the Program.
153 In addition, mere aggregation of another work not based on the Program
154 with the Program (or with a work based on the Program) on a volume of
155 a storage or distribution medium does not bring the other work under
156 the scope of this License.
158 - 3\. You may copy and distribute the Program (or a work based on it,
159 under Section 2) in object code or executable form under the terms of
160 Sections 1 and 2 above provided that you also do one of the following:
162 a) Accompany it with the complete corresponding machine-readable
163 source code, which must be distributed under the terms of Sections
164 1 and 2 above on a medium customarily used for software interchange; or,
166 b) Accompany it with a written offer, valid for at least three
167 years, to give any third party, for a charge no more than your
168 cost of physically performing source distribution, a complete
169 machine-readable copy of the corresponding source code, to be
170 distributed under the terms of Sections 1 and 2 above on a medium
171 customarily used for software interchange; or,
173 c) Accompany it with the information you received as to the offer
174 to distribute corresponding source code. (This alternative is
175 allowed only for noncommercial distribution and only if you
176 received the program in object code or executable form with such
177 an offer, in accord with Subsection b above.)
179 The source code for a work means the preferred form of the work for
180 making modifications to it. For an executable work, complete source
181 code means all the source code for all modules it contains, plus any
182 associated interface definition files, plus the scripts used to
183 control compilation and installation of the executable. However, as a
184 special exception, the source code distributed need not include
185 anything that is normally distributed (in either source or binary
186 form) with the major components (compiler, kernel, and so on) of the
187 operating system on which the executable runs, unless that component
188 itself accompanies the executable.
190 If distribution of executable or object code is made by offering
191 access to copy from a designated place, then offering equivalent
192 access to copy the source code from the same place counts as
193 distribution of the source code, even though third parties are not
194 compelled to copy the source along with the object code.
196 - 4\. You may not copy, modify, sublicense, or distribute the Program
197 except as expressly provided under this License. Any attempt
198 otherwise to copy, modify, sublicense or distribute the Program is
199 void, and will automatically terminate your rights under this License.
200 However, parties who have received copies, or rights, from you under
201 this License will not have their licenses terminated so long as such
202 parties remain in full compliance.
204 - 5\. You are not required to accept this License, since you have not
205 signed it. However, nothing else grants you permission to modify or
206 distribute the Program or its derivative works. These actions are
207 prohibited by law if you do not accept this License. Therefore, by
208 modifying or distributing the Program (or any work based on the
209 Program), you indicate your acceptance of this License to do so, and
210 all its terms and conditions for copying, distributing or modifying
211 the Program or works based on it.
213 - 6\. Each time you redistribute the Program (or any work based on the
214 Program), the recipient automatically receives a license from the
215 original licensor to copy, distribute or modify the Program subject to
216 these terms and conditions. You may not impose any further
217 restrictions on the recipients' exercise of the rights granted herein.
218 You are not responsible for enforcing compliance by third parties to
221 - 7\. If, as a consequence of a court judgment or allegation of patent
222 infringement or for any other reason (not limited to patent issues),
223 conditions are imposed on you (whether by court order, agreement or
224 otherwise) that contradict the conditions of this License, they do not
225 excuse you from the conditions of this License. If you cannot
226 distribute so as to satisfy simultaneously your obligations under this
227 License and any other pertinent obligations, then as a consequence you
228 may not distribute the Program at all. For example, if a patent
229 license would not permit royalty-free redistribution of the Program by
230 all those who receive copies directly or indirectly through you, then
231 the only way you could satisfy both it and this License would be to
232 refrain entirely from distribution of the Program.
234 If any portion of this section is held invalid or unenforceable under
235 any particular circumstance, the balance of the section is intended to
236 apply and the section as a whole is intended to apply in other
239 It is not the purpose of this section to induce you to infringe any
240 patents or other property right claims or to contest validity of any
241 such claims; this section has the sole purpose of protecting the
242 integrity of the free software distribution system, which is
243 implemented by public license practices. Many people have made
244 generous contributions to the wide range of software distributed
245 through that system in reliance on consistent application of that
246 system; it is up to the author/donor to decide if he or she is willing
247 to distribute software through any other system and a licensee cannot
250 This section is intended to make thoroughly clear what is believed to
251 be a consequence of the rest of this License.
253 - 8\. If the distribution and/or use of the Program is restricted in
254 certain countries either by patents or by copyrighted interfaces, the
255 original copyright holder who places the Program under this License
256 may add an explicit geographical distribution limitation excluding
257 those countries, so that distribution is permitted only in or among
258 countries not thus excluded. In such case, this License incorporates
259 the limitation as if written in the body of this License.
261 - 9\. The Free Software Foundation may publish revised and/or new versions
262 of the General Public License from time to time. Such new versions will
263 be similar in spirit to the present version, but may differ in detail to
264 address new problems or concerns.
266 Each version is given a distinguishing version number. If the Program
267 specifies a version number of this License which applies to it and "any
268 later version", you have the option of following the terms and conditions
269 either of that version or of any later version published by the Free
270 Software Foundation. If the Program does not specify a version number of
271 this License, you may choose any version ever published by the Free Software
274 - 10\. If you wish to incorporate parts of the Program into other free
275 programs whose distribution conditions are different, write to the author
276 to ask for permission. For software which is copyrighted by the Free
277 Software Foundation, write to the Free Software Foundation; we sometimes
278 make exceptions for this. Our decision will be guided by the two goals
279 of preserving the free status of all derivatives of our free software and
280 of promoting the sharing and reuse of software generally.
285 - 11\. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
286 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
287 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
288 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
289 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
290 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
291 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
292 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
293 REPAIR OR CORRECTION.
295 - 12\. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
296 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
297 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
298 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
299 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
300 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
301 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
302 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
303 POSSIBILITY OF SUCH DAMAGES.
305 ## END OF TERMS AND CONDITIONS ##
307 ---------------------------------------------------------------------------
309 ### How to Apply These Terms to Your New Programs ###
311 If you develop a new program, and you want it to be of the greatest
312 possible use to the public, the best way to achieve this is to make it
313 free software which everyone can redistribute and change under these terms.
315 To do so, attach the following notices to the program. It is safest
316 to attach them to the start of each source file to most effectively
317 convey the exclusion of warranty; and each file should have at least
318 the "copyright" line and a pointer to where the full notice is found.
320 <one line to give the program's name and a brief idea of what it does.>
321 Copyright (C) <year> <name of author>
323 This program is free software; you can redistribute it and/or modify
324 it under the terms of the GNU General Public License as published by
325 the Free Software Foundation; either version 2 of the License, or
326 (at your option) any later version.
328 This program is distributed in the hope that it will be useful,
329 but WITHOUT ANY WARRANTY; without even the implied warranty of
330 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
331 GNU General Public License for more details.
333 You should have received a copy of the GNU General Public License along
334 with this program; if not, write to the Free Software Foundation, Inc.,
335 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
337 Also add information on how to contact you by electronic and paper mail.
339 If the program is interactive, make it output a short notice like this
340 when it starts in an interactive mode:
342 Gnomovision version 69, Copyright (C) year name of author
343 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
344 This is free software, and you are welcome to redistribute it
345 under certain conditions; type `show c' for details.
347 The hypothetical commands `show w' and `show c' should show the appropriate
348 parts of the General Public License. Of course, the commands you use may
349 be called something other than `show w' and `show c'; they could even be
350 mouse-clicks or menu items--whatever suits your program.
352 You should also get your employer (if you work as a programmer) or your
353 school, if any, to sign a "copyright disclaimer" for the program, if
354 necessary. Here is a sample; alter the names:
356 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
357 `Gnomovision' (which makes passes at compilers) written by James Hacker.
359 <signature of Ty Coon>, 1 April 1989
360 Ty Coon, President of Vice
362 This General Public License does not permit incorporating your program into
363 proprietary programs. If your program is a subroutine library, you may
364 consider it more useful to permit linking proprietary applications with the
365 library. If this is what you want to do, use the GNU Lesser General
366 Public License instead of this License.