From: ceriel Date: Fri, 30 Nov 1990 09:42:49 +0000 (+0000) Subject: Some modifications to reduce the number of terminals (for Ultrix) X-Git-Tag: release-5-5~1376 X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=df77506e1feba04afa5ebaaf6d7b63f38deffe1e;p=ack.git Some modifications to reduce the number of terminals (for Ultrix) --- diff --git a/mach/m68020/as/mach2.c b/mach/m68020/as/mach2.c index 3306ba0f1..1b3f8ad16 100644 --- a/mach/m68020/as/mach2.c +++ b/mach/m68020/as/mach2.c @@ -11,7 +11,6 @@ %token DREG %token AREG %token PC -%token ZPC %token CREG %token SPEC %token ABCD @@ -39,17 +38,15 @@ %token DIVL %token CMP %token MOVE -%token MOVEP %token MOVEM %token MOVEC -%token MOVES +%token MOVESP %token SWAP %token LINK %token UNLK %token TRAP -%token STOP %token EXG -%token RTD +%token OP_IMM %token BKPT %token CALLM %token CAS @@ -58,8 +55,7 @@ %token CPBCC %token CPDBCC %token CPGEN -%token CPRESTORE -%token CPSAVE +%token CPSAVREST %token CPSCC %token CPTRAPCC %token FPCR diff --git a/mach/m68020/as/mach3.c b/mach/m68020/as/mach3.c index 1db445aaa..87ff8e9e9 100644 --- a/mach/m68020/as/mach3.c +++ b/mach/m68020/as/mach3.c @@ -31,7 +31,7 @@ 0, AREG, 07, "sp", 0, PC, 0, "pc", -0, ZPC, 0, "zpc", +0, PC, 0200, "zpc", 0, CREG, 04001, "vbr", 0, CREG, 0, "sfc", @@ -190,9 +190,9 @@ 0, CMP, 0, "cmp", 0, MOVE, 0, "move", -0, MOVEP, 0, "movep", +0, MOVESP, 0, "movep", 0, MOVEM, 0, "movem", -0, MOVES, 0, "moves", +0, MOVESP, 1, "moves", 0, MOVEC, 0, "movec", 0, SWAP, 0, "swap", @@ -203,7 +203,7 @@ 0, TRAP, 0, "trap", -0, STOP, 0, "stop", +0, OP_IMM, 047162, "stop", 0, CHK, 0, "chk", @@ -213,7 +213,7 @@ 0, LEA, 0, "lea", -0, RTD, 0, "rtd", +0, OP_IMM, 047164, "rtd", 0, BKPT, 0, "bkpt", @@ -238,8 +238,8 @@ 0, CPTRAPCC, 0170170, ".trap", 0, CPBCC, 0170200, ".br", /* 'r' to distinguish from SIZE_B */ -0, CPSAVE, 0170400, ".save", -0, CPRESTORE, 0170500, ".restore", +0, CPSAVREST, 0170400, ".save", +0, CPSAVREST, 0170500, ".restore", /* floating point coprocessor ... */ diff --git a/mach/m68020/as/mach4.c b/mach/m68020/as/mach4.c index 4ea8138c8..a549d9943 100644 --- a/mach/m68020/as/mach4.c +++ b/mach/m68020/as/mach4.c @@ -6,6 +6,10 @@ /* * Motorola 68020 syntax rules */ +/* Please do not add more terminal symbols. As it is, 127 terminal symbols + are used, and this is the limit for some "yacc" implementations, + notably the Ultrix one. +*/ operation : { instrp = instr; @@ -123,14 +127,15 @@ instruction } | MOVE sizenon ea_ea { move($2);} - | MOVEP sizedef ea_ea - { movep($2);} | MOVEM sizedef regs ',' notimmreg { movem(0, $2, $3);} | MOVEM sizedef notimmreg ',' regs { movem(1, $2, $5);} - | MOVES sizedef ea_ea - { if (mrg_1 <= 017) { + | MOVESP sizedef ea_ea + { if ($1 == 0) { + /* movep */ + movep($2); + } else if (mrg_1 <= 017) { T_EMIT2(007000 | $2 | mrg_2,0,0,0); T_EMIT2(mrg_1 << 12 | 04000,0,0,0); ea_2($2,ALT|MEM); @@ -165,8 +170,8 @@ instruction } | SWAP DREG { T_EMIT2(044100 | $2,0,0,0);} - | STOP imm - { T_EMIT2(047162, 0, 0, 0); + | OP_IMM imm + { T_EMIT2($1, 0, 0, 0); ea_2(SIZE_W, 0); } | LINK sizenon AREG ',' imm @@ -177,10 +182,6 @@ instruction { fit(fit4($3)); T_EMIT2(047100|low4($3),0,0,0); } - | RTD imm - { T_EMIT2(047164,0,0,0); - ea_2(SIZE_W, 0); - } | BKPT '#' absexp { fit(($3 & ~07) == 0); T_EMIT2(044110 | low3($3),0,0,0); @@ -335,9 +336,9 @@ areg_index } ; areg : AREG - | PC { mrg_2 |= PC_MODE;} - | ZPC { mrg_2 |= PC_MODE; - ffew_2 |= 0200; /* base-reg suppressed */ + | PC { mrg_2 |= PC_MODE; + ffew_2 |= $1; /* base-reg suppressed for zpc */ + $$ = 0; } ; index : reg sizedef scale @@ -633,13 +634,13 @@ mm_op1 : /* Coprocessor instructions; syntax may be changed (please). * NO EFFECTIVE ADDRESS IS CALCULATED (SYNTAX ?) */ } - | CPRESTORE ea + | CPSAVREST ea { T_EMIT2($1 | co_id | mrg_2,0,0,0); - ea_2(SIZE_W, (mrg_2 & 070)==030 ? 0 : CTR); - } - | CPSAVE ea - { T_EMIT2($1 | co_id | mrg_2,0,0,0); - ea_2(SIZE_W,(mrg_2 & 070)==020 ? 0 : CTR|ALT); + if ($1 & 0100) { + /* restore */ + ea_2(SIZE_W, (mrg_2 & 070)==030 ? 0 : CTR); + } + else ea_2(SIZE_W,(mrg_2 & 070)==020 ? 0 : CTR|ALT); } | CPSCC cp_cond ea { T_EMIT2($1 | co_id | mrg_2,0,0,0); @@ -657,7 +658,7 @@ mm_op1 : /* Coprocessor instructions; syntax may be changed (please). T_EMIT2($2,0,0,0); } ; -cp_cond : '.' absexp +cp_cond : DOT absexp { fit(fit6($2)); $$ = low6($2); } diff --git a/mach/vax4/as/mach0.c b/mach/vax4/as/mach0.c index 89545f8b3..4fa097b64 100644 --- a/mach/vax4/as/mach0.c +++ b/mach/vax4/as/mach0.c @@ -14,6 +14,8 @@ #undef valu_t #define valu_t long +#undef word_t +#define word_t long #undef addr_t #define addr_t long diff --git a/mach/vax4/as/mach2.c b/mach/vax4/as/mach2.c index 09289db32..bf0705488 100644 --- a/mach/vax4/as/mach2.c +++ b/mach/vax4/as/mach2.c @@ -24,13 +24,18 @@ Bx - branch, size of offset determined by instruction Be - extended conditional branch; the instruction may be replaced by a reverse-conditional branch over a branch or jump + To reduce the number of terminals, some instructions that have operands of + equal size are coded with an X instead of b, w, or l; these instructions + have the size in the high order word of the valu field. This is needed + because some yacc versions do not accept grammars with more than 127 + terminal symbols. */ %token REG -%token CASE_b_b_b, CASE_l_l_l, CASE_w_w_w +%token CASE_X_X_X %token OP0 -%token OP1_A, OP1_Bb, OP1_Bl, OP1_Bw, OP1_Bx, OP1_b, OP1_l, OP1_u, - OP1_w, OP1_Be +%token OP1_A, OP1_Bx, OP1_u, OP1_Be +%token OP1_BX, OP1_X %token OP2_A_A, OP2_A_l, OP2_b_b, OP2_b_l, OP2_b_u, OP2_b_w, OP2_l_A, OP2_l_Bb, OP2_l_b, OP2_l_l, OP2_l_u, OP2_l_w, OP2_u_b, OP2_u_l, OP2_u_u, OP2_u_w, OP2_w_b, OP2_w_l, OP2_w_u, OP2_w_w, OP2_l_Be diff --git a/mach/vax4/as/mach3.c b/mach/vax4/as/mach3.c index f5f707575..3fc7a9656 100644 --- a/mach/vax4/as/mach3.c +++ b/mach/vax4/as/mach3.c @@ -65,9 +65,9 @@ 0, OP2_b_b, 0x93, "bitb", 0, OP2_w_w, 0xb3, "bitw", 0, OP2_l_l, 0xd3, "bitl", -0, OP1_b, 0x94, "clrb", -0, OP1_w, 0xb4, "clrw", -0, OP1_l, 0xd4, "clrl", +0, OP1_X, 0x94|(1L<<16), "clrb", +0, OP1_X, 0xb4|(2L<<16), "clrw", +0, OP1_X, 0xd4|(4L<<16), "clrl", 0, OP1_u, 0x7c, "clrq", 0, OP1_u, 0x7cfd, "clro", 0, OP2_b_b, 0x91, "cmpb", @@ -79,9 +79,9 @@ 0, OP2_w_l, 0x32, "cvtwl", 0, OP2_l_b, 0xf6, "cvtlb", 0, OP2_l_w, 0xf7, "cvtlw", -0, OP1_b, 0x97, "decb", -0, OP1_w, 0xb7, "decw", -0, OP1_l, 0xd7, "decl", +0, OP1_X, 0x97|(1L<<16), "decb", +0, OP1_X, 0xb7|(2L<<16), "decw", +0, OP1_X, 0xd7|(4L<<16), "decl", 0, OP2_b_b, 0x86, "divb2", 0, OP3_b_b_b, 0x87, "divb3", 0, OP2_w_w, 0xa6, "divw2", @@ -90,9 +90,9 @@ 0, OP3_l_l_l, 0xc7, "divl3", 0, OP4_l_u_l_l, 0x7b, "ediv", 0, OP4_l_l_l_u, 0x7a, "emul", -0, OP1_b, 0x96, "incb", -0, OP1_w, 0xb6, "incw", -0, OP1_l, 0xd6, "incl", +0, OP1_X, 0x96|(1L<<16), "incb", +0, OP1_X, 0xb6|(2L<<16), "incw", +0, OP1_X, 0xd6|(4L<<16), "incl", 0, OP2_b_b, 0x92, "mcomb", 0, OP2_w_w, 0xb2, "mcomw", 0, OP2_l_l, 0xd2, "mcoml", @@ -113,7 +113,7 @@ 0, OP3_w_w_w, 0xa5, "mulw3", 0, OP2_l_l, 0xc4, "mull2", 0, OP3_l_l_l, 0xc5, "mull3", -0, OP1_l, 0xdd, "pushl", +0, OP1_X, 0xdd|(4L<<16), "pushl", 0, OP3_b_l_l, 0x9c, "rotl", 0, OP2_l_l, 0xd9, "sbwc", 0, OP2_b_b, 0x82, "subb2", @@ -122,9 +122,9 @@ 0, OP3_w_w_w, 0xa3, "subw3", 0, OP2_l_l, 0xc2, "subl2", 0, OP3_l_l_l, 0xc3, "subl3", -0, OP1_b, 0x95, "tstb", -0, OP1_w, 0xb5, "tstw", -0, OP1_l, 0xd5, "tstl", +0, OP1_X, 0x95|(1L<<16), "tstb", +0, OP1_X, 0xb5|(2L<<16), "tstw", +0, OP1_X, 0xd5|(4L<<16), "tstl", 0, OP2_b_b, 0x8c, "xorb2", 0, OP3_b_b_b, 0x8d, "xorb3", 0, OP2_w_w, 0xac, "xorw2", @@ -174,22 +174,22 @@ 0, OP4_u_u_u_Bw, 0x6ffd, "acbh", 0, OP3_l_l_Bb, 0xf3, "aobleq", 0, OP3_l_l_Bb, 0xf2, "aoblss", -0, OP1_Bb, 0x14, "bgtr", -0, OP1_Bb, 0x15, "bleq", -0, OP1_Bb, 0x12, "bneq", -0, OP1_Bb, 0x12, "bnequ", -0, OP1_Bb, 0x13, "beql", -0, OP1_Bb, 0x13, "beqlu", -0, OP1_Bb, 0x18, "bgeq", -0, OP1_Bb, 0x19, "blss", -0, OP1_Bb, 0x1a, "bgtru", -0, OP1_Bb, 0x1b, "blequ", -0, OP1_Bb, 0x1c, "bvc", -0, OP1_Bb, 0x1d, "bvs", -0, OP1_Bb, 0x1e, "bgequ", -0, OP1_Bb, 0x1e, "bcc", -0, OP1_Bb, 0x1f, "blssu", -0, OP1_Bb, 0x1f, "bcs", +0, OP1_BX, 0x14|(1L<<16), "bgtr", +0, OP1_BX, 0x15|(1L<<16), "bleq", +0, OP1_BX, 0x12|(1L<<16), "bneq", +0, OP1_BX, 0x12|(1L<<16), "bnequ", +0, OP1_BX, 0x13|(1L<<16), "beql", +0, OP1_BX, 0x13|(1L<<16), "beqlu", +0, OP1_BX, 0x18|(1L<<16), "bgeq", +0, OP1_BX, 0x19|(1L<<16), "blss", +0, OP1_BX, 0x1a|(1L<<16), "bgtru", +0, OP1_BX, 0x1b|(1L<<16), "blequ", +0, OP1_BX, 0x1c|(1L<<16), "bvc", +0, OP1_BX, 0x1d|(1L<<16), "bvs", +0, OP1_BX, 0x1e|(1L<<16), "bgequ", +0, OP1_BX, 0x1e|(1L<<16), "bcc", +0, OP1_BX, 0x1f|(1L<<16), "blssu", +0, OP1_BX, 0x1f|(1L<<16), "bcs", 0, OP3_l_V_Bb, 0xe0, "bbs", 0, OP3_l_V_Bb, 0xe1, "bbc", 0, OP3_l_V_Bb, 0xe2, "bbss", @@ -227,15 +227,15 @@ 0, OP3_l_V_Be, 0xe6, "jbssi", 0, OP3_l_V_Be, 0xe7, "jbcci", 0, OP1_Bx, 0x11, "br", -0, OP1_Bb, 0x11, "brb", -0, OP1_Bw, 0x31, "brw", +0, OP1_BX, 0x11|(1L<<16), "brb", +0, OP1_BX, 0x31|(2L<<16), "brw", 0, OP1_Be, 0x11, "jbr", 0, OP1_Bx, 0x10, "bsb", -0, OP1_Bb, 0x10, "bsbb", -0, OP1_Bw, 0x30, "bsbw", -0, CASE_b_b_b, 0x8f, "caseb", -0, CASE_w_w_w, 0xaf, "casew", -0, CASE_l_l_l, 0xcf, "casel", +0, OP1_BX, 0x10|(1L<<16), "bsbb", +0, OP1_BX, 0x30|(2L<<16), "bsbw", +0, CASE_X_X_X, 0x8f|(1L<<16), "caseb", +0, CASE_X_X_X, 0xaf|(2L<<16), "casew", +0, CASE_X_X_X, 0xcf|(4L<<16), "casel", 0, OP1_A, 0x17, "jmp", 0, OP1_A, 0x16, "jsb", 0, OP0, 0x05, "rsb", @@ -250,15 +250,15 @@ /* Miscellaneous instructions */ -0, OP1_w, 0xb9, "bicpsw", -0, OP1_w, 0xb8, "bispsw", +0, OP1_X, 0xb9|(2L<<16), "bicpsw", +0, OP1_X, 0xb8|(2L<<16), "bispsw", 0, OP0, 0x03, "bpt", 0, OP0, 0x00, "halt", 0, OP6_l_l_l_l_l_l,0x0a, "index", -0, OP1_l, 0xdc, "movpsl", +0, OP1_X, 0xdc|(4L<<16), "movpsl", 0, OP0, 0x01, "nop", -0, OP1_w, 0xba, "popr", -0, OP1_w, 0xbb, "pushr", +0, OP1_X, 0xba|(2L<<16), "popr", +0, OP1_X, 0xbb|(2L<<16), "pushr", 0, OP0, 0xfc, "xfc", /* Queue instructions */ @@ -419,17 +419,17 @@ to the VAX-11 Architecture Reference Manual, Revision 6.1, 1982, the access type is b, which means that the operand is a branch displacement. */ -0, OP1_Bw, 0xfeff, "bugw", -0, OP1_Bl, 0xfdff, "bugl", +0, OP1_BX, 0xfeff|(2L<<16),"bugw", +0, OP1_BX, 0xfdff|(4L<<16),"bugl", 0, OP3_b_w_A, 0x0c, "prober", 0, OP3_b_w_A, 0x0d, "probew", 0, OP0, 0x02, "rei", -0, OP1_w, 0xbc, "chmk", -0, OP1_w, 0xbd, "chme", -0, OP1_w, 0xbe, "chms", -0, OP1_w, 0xbf, "chmu", +0, OP1_X, 0xbc|(2L<<16), "chmk", +0, OP1_X, 0xbd|(2L<<16), "chme", +0, OP1_X, 0xbe|(2L<<16), "chms", +0, OP1_X, 0xbf|(2L<<16), "chmu", 0, OP0, 0x06, "ldpctx", 0, OP0, 0x07, "svpctx", diff --git a/mach/vax4/as/mach4.c b/mach/vax4/as/mach4.c index 537b42fe1..aed186cf7 100644 --- a/mach/vax4/as/mach4.c +++ b/mach/vax4/as/mach4.c @@ -36,17 +36,13 @@ operation ; OP1_O - : OP1_b { opnd[0].size = 1; $$ = $1; } - | OP1_w { opnd[0].size = 2; $$ = $1; } - | OP1_l { opnd[0].size = 4; $$ = $1; } + : OP1_X { opnd[0].size = $1>>16; $$ = $1 & 0xffff; } | OP1_A { opnd[0].size = -2; $$ = $1; } | OP1_u { opnd[0].size = 0; $$ = $1; } ; OP1_B - : OP1_Bb { opnd[0].size = 1; $$ = $1; } - | OP1_Bw { opnd[0].size = 2; $$ = $1; } - | OP1_Bl { opnd[0].size = 4; $$ = $1; } + : OP1_BX { opnd[0].size = $1>>16; $$ = $1 & 0xffff; } ; OP2_O_O @@ -217,14 +213,10 @@ OP6_O_O_O_O_O_O ; CASE_O_O_O - : CASE_b_b_b { opnd[0].size = 1; opnd[1].size = 1; - opnd[2].size = 1; $$ = $1; - } - | CASE_w_w_w { opnd[0].size = 2; opnd[1].size = 2; - opnd[2].size = 2; $$ = $1; - } - | CASE_l_l_l { opnd[0].size = 4; opnd[1].size = 4; - opnd[2].size = 4; $$ = $1; + : CASE_X_X_X { opnd[0].size = ($1>>16); + opnd[1].size = ($1>>16); + opnd[2].size = ($1>>16); + $$ = $1 & 0xffff; } ;