1 /* Declarations for Intel 80386 opcode table
2 Copyright (C) 2007-2019 Free Software Foundation, Inc.
4 This file is part of the GNU opcodes library.
6 This library is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 It is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
14 License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
21 #include "opcode/i386.h"
30 /* Position of cpu flags bitfiled. */
34 /* i186 or better required */
36 /* i286 or better required */
38 /* i386 or better required */
40 /* i486 or better required */
42 /* i585 or better required */
44 /* i686 or better required */
46 /* CMOV Instruction support required */
48 /* FXSR Instruction support required */
50 /* CLFLUSH Instruction support required */
52 /* NOP Instruction support required */
54 /* SYSCALL Instructions support required */
56 /* Floating point support required */
58 /* i287 support required */
60 /* i387 support required */
62 /* i686 and floating point support required */
64 /* SSE3 and floating point support required */
66 /* MMX support required */
68 /* SSE support required */
70 /* SSE2 support required */
72 /* 3dnow! support required */
74 /* 3dnow! Extensions support required */
76 /* SSE3 support required */
78 /* VIA PadLock required */
80 /* AMD Secure Virtual Machine Ext-s required */
82 /* VMX Instructions required */
84 /* SMX Instructions required */
86 /* SSSE3 support required */
88 /* SSE4a support required */
90 /* ABM New Instructions required */
92 /* SSE4.1 support required */
94 /* SSE4.2 support required */
96 /* AVX support required */
98 /* AVX2 support required */
100 /* Intel AVX-512 Foundation Instructions support required */
102 /* Intel AVX-512 Conflict Detection Instructions support required */
104 /* Intel AVX-512 Exponential and Reciprocal Instructions support
107 /* Intel AVX-512 Prefetch Instructions support required */
109 /* Intel AVX-512 VL Instructions support required. */
111 /* Intel AVX-512 DQ Instructions support required. */
113 /* Intel AVX-512 BW Instructions support required. */
115 /* Intel L1OM support required */
117 /* Intel K1OM support required */
119 /* Intel IAMCU support required */
121 /* Xsave/xrstor New Instructions support required */
123 /* Xsaveopt New Instructions support required */
125 /* AES support required */
127 /* PCLMUL support required */
129 /* FMA support required */
131 /* FMA4 support required */
133 /* XOP support required */
135 /* LWP support required */
137 /* BMI support required */
139 /* TBM support required */
141 /* MOVBE Instruction support required */
143 /* CMPXCHG16B instruction support required. */
145 /* EPT Instructions required */
147 /* RDTSCP Instruction support required */
149 /* FSGSBASE Instructions required */
151 /* RDRND Instructions required */
153 /* F16C Instructions required */
155 /* Intel BMI2 support required */
157 /* LZCNT support required */
159 /* HLE support required */
161 /* RTM support required */
163 /* INVPCID Instructions required */
165 /* VMFUNC Instruction required */
167 /* Intel MPX Instructions required */
169 /* 64bit support available, used by -march= in assembler. */
171 /* RDRSEED instruction required. */
173 /* Multi-presisionn add-carry instructions are required. */
175 /* Supports prefetchw and prefetch instructions. */
177 /* SMAP instructions required. */
179 /* SHA instructions required. */
181 /* CLFLUSHOPT instruction required */
183 /* XSAVES/XRSTORS instruction required */
185 /* XSAVEC instruction required */
187 /* PREFETCHWT1 instruction required */
189 /* SE1 instruction required */
191 /* CLWB instruction required */
193 /* Intel AVX-512 IFMA Instructions support required. */
195 /* Intel AVX-512 VBMI Instructions support required. */
197 /* Intel AVX-512 4FMAPS Instructions support required. */
199 /* Intel AVX-512 4VNNIW Instructions support required. */
201 /* Intel AVX-512 VPOPCNTDQ Instructions support required. */
203 /* Intel AVX-512 VBMI2 Instructions support required. */
205 /* Intel AVX-512 VNNI Instructions support required. */
207 /* Intel AVX-512 BITALG Instructions support required. */
209 /* Intel AVX-512 BF16 Instructions support required. */
211 /* Intel AVX-512 VP2INTERSECT Instructions support required. */
212 CpuAVX512_VP2INTERSECT,
213 /* mwaitx instruction required */
215 /* Clzero instruction required */
217 /* OSPKE instruction required */
219 /* RDPID instruction required */
221 /* PTWRITE instruction required */
223 /* CET instructions support required */
226 /* GFNI instructions required */
228 /* VAES instructions required */
230 /* VPCLMULQDQ instructions required */
232 /* WBNOINVD instructions required */
234 /* PCONFIG instructions required */
236 /* WAITPKG instructions required */
238 /* CLDEMOTE instruction required */
240 /* MOVDIRI instruction support required */
242 /* MOVDIRR64B instruction required */
244 /* ENQCMD instruction required */
246 /* RDPRU instruction required */
248 /* MCOMMIT instruction required */
250 /* 64bit support required */
252 /* Not supported in the 64bit mode */
254 /* The last bitfield in i386_cpu_flags. */
258 #define CpuNumOfUints \
259 (CpuMax / sizeof (unsigned int) / CHAR_BIT + 1)
260 #define CpuNumOfBits \
261 (CpuNumOfUints * sizeof (unsigned int) * CHAR_BIT)
263 /* If you get a compiler error for zero width of the unused field,
265 #define CpuUnused (CpuMax + 1)
267 /* We can check if an instruction is available with array instead
269 typedef union i386_cpu_flags
273 unsigned int cpui186:1;
274 unsigned int cpui286:1;
275 unsigned int cpui386:1;
276 unsigned int cpui486:1;
277 unsigned int cpui586:1;
278 unsigned int cpui686:1;
279 unsigned int cpucmov:1;
280 unsigned int cpufxsr:1;
281 unsigned int cpuclflush:1;
282 unsigned int cpunop:1;
283 unsigned int cpusyscall:1;
284 unsigned int cpu8087:1;
285 unsigned int cpu287:1;
286 unsigned int cpu387:1;
287 unsigned int cpu687:1;
288 unsigned int cpufisttp:1;
289 unsigned int cpummx:1;
290 unsigned int cpusse:1;
291 unsigned int cpusse2:1;
292 unsigned int cpua3dnow:1;
293 unsigned int cpua3dnowa:1;
294 unsigned int cpusse3:1;
295 unsigned int cpupadlock:1;
296 unsigned int cpusvme:1;
297 unsigned int cpuvmx:1;
298 unsigned int cpusmx:1;
299 unsigned int cpussse3:1;
300 unsigned int cpusse4a:1;
301 unsigned int cpuabm:1;
302 unsigned int cpusse4_1:1;
303 unsigned int cpusse4_2:1;
304 unsigned int cpuavx:1;
305 unsigned int cpuavx2:1;
306 unsigned int cpuavx512f:1;
307 unsigned int cpuavx512cd:1;
308 unsigned int cpuavx512er:1;
309 unsigned int cpuavx512pf:1;
310 unsigned int cpuavx512vl:1;
311 unsigned int cpuavx512dq:1;
312 unsigned int cpuavx512bw:1;
313 unsigned int cpul1om:1;
314 unsigned int cpuk1om:1;
315 unsigned int cpuiamcu:1;
316 unsigned int cpuxsave:1;
317 unsigned int cpuxsaveopt:1;
318 unsigned int cpuaes:1;
319 unsigned int cpupclmul:1;
320 unsigned int cpufma:1;
321 unsigned int cpufma4:1;
322 unsigned int cpuxop:1;
323 unsigned int cpulwp:1;
324 unsigned int cpubmi:1;
325 unsigned int cputbm:1;
326 unsigned int cpumovbe:1;
327 unsigned int cpucx16:1;
328 unsigned int cpuept:1;
329 unsigned int cpurdtscp:1;
330 unsigned int cpufsgsbase:1;
331 unsigned int cpurdrnd:1;
332 unsigned int cpuf16c:1;
333 unsigned int cpubmi2:1;
334 unsigned int cpulzcnt:1;
335 unsigned int cpuhle:1;
336 unsigned int cpurtm:1;
337 unsigned int cpuinvpcid:1;
338 unsigned int cpuvmfunc:1;
339 unsigned int cpumpx:1;
340 unsigned int cpulm:1;
341 unsigned int cpurdseed:1;
342 unsigned int cpuadx:1;
343 unsigned int cpuprfchw:1;
344 unsigned int cpusmap:1;
345 unsigned int cpusha:1;
346 unsigned int cpuclflushopt:1;
347 unsigned int cpuxsaves:1;
348 unsigned int cpuxsavec:1;
349 unsigned int cpuprefetchwt1:1;
350 unsigned int cpuse1:1;
351 unsigned int cpuclwb:1;
352 unsigned int cpuavx512ifma:1;
353 unsigned int cpuavx512vbmi:1;
354 unsigned int cpuavx512_4fmaps:1;
355 unsigned int cpuavx512_4vnniw:1;
356 unsigned int cpuavx512_vpopcntdq:1;
357 unsigned int cpuavx512_vbmi2:1;
358 unsigned int cpuavx512_vnni:1;
359 unsigned int cpuavx512_bitalg:1;
360 unsigned int cpuavx512_bf16:1;
361 unsigned int cpuavx512_vp2intersect:1;
362 unsigned int cpumwaitx:1;
363 unsigned int cpuclzero:1;
364 unsigned int cpuospke:1;
365 unsigned int cpurdpid:1;
366 unsigned int cpuptwrite:1;
367 unsigned int cpuibt:1;
368 unsigned int cpushstk:1;
369 unsigned int cpugfni:1;
370 unsigned int cpuvaes:1;
371 unsigned int cpuvpclmulqdq:1;
372 unsigned int cpuwbnoinvd:1;
373 unsigned int cpupconfig:1;
374 unsigned int cpuwaitpkg:1;
375 unsigned int cpucldemote:1;
376 unsigned int cpumovdiri:1;
377 unsigned int cpumovdir64b:1;
378 unsigned int cpuenqcmd:1;
379 unsigned int cpurdpru:1;
380 unsigned int cpumcommit:1;
381 unsigned int cpu64:1;
382 unsigned int cpuno64:1;
384 unsigned int unused:(CpuNumOfBits - CpuUnused);
387 unsigned int array[CpuNumOfUints];
390 /* Position of opcode_modifier bits. */
394 /* has direction bit. */
396 /* set if operands can be both bytes and words/dwords/qwords, encoded the
397 canonical way; the base_opcode field should hold the encoding for byte
400 /* load form instruction. Must be placed before store form. */
402 /* insn has a modrm byte. */
404 /* register is in low 3 bits of opcode */
406 /* special case for jump insns. */
412 /* special case for intersegment leaps/calls */
414 /* FP insn memory format bit, sized by 0x4 */
416 /* src/dest swap for floats. */
418 /* needs size prefix if in 32-bit mode */
420 /* needs size prefix if in 16-bit mode */
422 /* needs size prefix if in 64-bit mode */
425 /* check register size. */
427 /* instruction ignores operand size prefix and in Intel mode ignores
428 mnemonic size suffix check. */
430 /* default insn size depends on mode */
432 /* b suffix on instruction illegal */
434 /* w suffix on instruction illegal */
436 /* l suffix on instruction illegal */
438 /* s suffix on instruction illegal */
440 /* q suffix on instruction illegal */
442 /* long double suffix on instruction illegal */
444 /* instruction needs FWAIT */
446 /* quick test for string instructions */
448 /* RegMem is for instructions with a modrm byte where the register
449 destination operand should be encoded in the mod and regmem fields.
450 Normally, it will be encoded in the reg field. We add a RegMem
451 flag to indicate that it should be encoded in the regmem field. */
453 /* quick test if branch instruction is MPX supported */
455 /* quick test if NOTRACK prefix is supported */
457 /* quick test for lockable instructions */
459 /* fake an extra reg operand for clr, imul and special register
460 processing for some instructions. */
462 /* An implicit xmm0 as the first operand */
464 /* The HLE prefix is OK:
465 1. With a LOCK prefix.
466 2. With or without a LOCK prefix.
467 3. With a RELEASE (0xf3) prefix.
469 #define HLEPrefixNone 0
470 #define HLEPrefixLock 1
471 #define HLEPrefixAny 2
472 #define HLEPrefixRelease 3
474 /* An instruction on which a "rep" prefix is acceptable. */
476 /* Convert to DWORD */
478 /* Convert to QWORD */
480 /* Address prefix changes register operand */
482 /* opcode is a prefix */
484 /* instruction has extension in 8 bit imm */
486 /* instruction don't need Rex64 prefix. */
488 /* instruction require Rex64 prefix. */
490 /* deprecated fp insn, gets a warning */
492 /* insn has VEX prefix:
493 1: 128bit VEX prefix (or operand dependent).
494 2: 256bit VEX prefix.
495 3: Scalar VEX prefix.
501 /* How to encode VEX.vvvv:
502 0: VEX.vvvv must be 1111b.
503 1: VEX.NDS. Register-only source is encoded in VEX.vvvv where
504 the content of source registers will be preserved.
505 VEX.DDS. The second register operand is encoded in VEX.vvvv
506 where the content of first source register will be overwritten
508 VEX.NDD2. The second destination register operand is encoded in
509 VEX.vvvv for instructions with 2 destination register operands.
510 For assembler, there are no difference between VEX.NDS, VEX.DDS
512 2. VEX.NDD. Register destination is encoded in VEX.vvvv for
513 instructions with 1 destination register operand.
514 3. VEX.LWP. Register destination is encoded in VEX.vvvv and one
515 of the operands can access a memory location.
521 /* How the VEX.W bit is used:
522 0: Set by the REX.W bit.
523 1: VEX.W0. Should always be 0.
524 2: VEX.W1. Should always be 1.
525 3: VEX.WIG. The VEX.W bit is ignored.
531 /* VEX opcode prefix:
532 0: VEX 0x0F opcode prefix.
533 1: VEX 0x0F38 opcode prefix.
534 2: VEX 0x0F3A opcode prefix
535 3: XOP 0x08 opcode prefix.
536 4: XOP 0x09 opcode prefix
537 5: XOP 0x0A opcode prefix.
546 /* number of VEX source operands:
547 0: <= 2 source operands.
548 1: 2 XOP source operands.
549 2: 3 source operands.
551 #define XOP2SOURCES 1
552 #define VEX3SOURCES 2
554 /* Instruction with vector SIB byte:
555 1: 128bit vector register.
556 2: 256bit vector register.
557 3: 512bit vector register.
563 /* SSE to AVX support required */
565 /* No AVX equivalent */
568 /* insn has EVEX prefix:
569 1: 512bit EVEX prefix.
570 2: 128bit EVEX prefix.
571 3: 256bit EVEX prefix.
572 4: Length-ignored (LIG) EVEX prefix.
573 5: Length determined from actual operands.
582 /* AVX512 masking support:
583 1: Zeroing or merging masking depending on operands.
585 3: Both zeroing and merging masking.
587 #define DYNAMIC_MASKING 1
588 #define MERGING_MASKING 2
589 #define BOTH_MASKING 3
592 /* AVX512 broadcast support. The number of bytes to broadcast is
593 1 << (Broadcast - 1):
599 #define BYTE_BROADCAST 1
600 #define WORD_BROADCAST 2
601 #define DWORD_BROADCAST 3
602 #define QWORD_BROADCAST 4
605 /* Static rounding control is supported. */
608 /* Supress All Exceptions is supported. */
611 /* Compressed Disp8*N attribute. */
612 #define DISP8_SHIFT_VL 7
615 /* Default mask isn't allowed. */
618 /* The second operand must be a vector register, {x,y,z}mmN, where N is a multiple of 4.
619 It implicitly denotes the register group of {x,y,z}mmN - {x,y,z}mm(N + 3).
623 /* Support encoding optimization. */
636 /* The last bitfield in i386_opcode_modifier. */
640 typedef struct i386_opcode_modifier
645 unsigned int modrm:1;
646 unsigned int shortform:1;
648 unsigned int jumpdword:1;
649 unsigned int jumpbyte:1;
650 unsigned int jumpintersegment:1;
651 unsigned int floatmf:1;
652 unsigned int floatr:1;
654 unsigned int checkregsize:1;
655 unsigned int ignoresize:1;
656 unsigned int defaultsize:1;
657 unsigned int no_bsuf:1;
658 unsigned int no_wsuf:1;
659 unsigned int no_lsuf:1;
660 unsigned int no_ssuf:1;
661 unsigned int no_qsuf:1;
662 unsigned int no_ldsuf:1;
663 unsigned int fwait:1;
664 unsigned int isstring:1;
665 unsigned int regmem:1;
666 unsigned int bndprefixok:1;
667 unsigned int notrackprefixok:1;
668 unsigned int islockable:1;
669 unsigned int regkludge:1;
670 unsigned int implicit1stxmm0:1;
671 unsigned int hleprefixok:2;
672 unsigned int repprefixok:1;
673 unsigned int todword:1;
674 unsigned int toqword:1;
675 unsigned int addrprefixopreg:1;
676 unsigned int isprefix:1;
677 unsigned int immext:1;
678 unsigned int norex64:1;
679 unsigned int rex64:1;
682 unsigned int vexvvvv:2;
684 unsigned int vexopcode:3;
685 unsigned int vexsources:2;
686 unsigned int vecsib:2;
687 unsigned int sse2avx:1;
688 unsigned int noavx:1;
690 unsigned int masking:2;
691 unsigned int broadcast:3;
692 unsigned int staticrounding:1;
694 unsigned int disp8memshift:3;
695 unsigned int nodefmask:1;
696 unsigned int implicitquadgroup:1;
697 unsigned int optimize:1;
698 unsigned int attmnemonic:1;
699 unsigned int attsyntax:1;
700 unsigned int intelsyntax:1;
701 unsigned int amd64:1;
702 unsigned int intel64:1;
703 } i386_opcode_modifier;
705 /* Operand classes. */
707 #define CLASS_WIDTH 4
711 Reg, /* GPRs and FP regs, distinguished by operand size */
714 /* Position of operand_type bits. */
719 Class = CLASS_WIDTH - 1,
722 /* Vector registers */
724 /* Vector Mask registers */
726 /* Control register */
732 /* Segment register */
734 /* 1 bit immediate */
736 /* 8 bit immediate */
738 /* 8 bit immediate sign extended */
740 /* 16 bit immediate */
742 /* 32 bit immediate */
744 /* 32 bit immediate sign extended */
746 /* 64 bit immediate */
748 /* 8bit/16bit/32bit displacements are used in different ways,
749 depending on the instruction. For jumps, they specify the
750 size of the PC relative displacement, for instructions with
751 memory operand, they specify the size of the offset relative
752 to the base register, and for instructions with memory offset
753 such as `mov 1234,%al' they specify the size of the offset
754 relative to the segment base. */
755 /* 8 bit displacement */
757 /* 16 bit displacement */
759 /* 32 bit displacement */
761 /* 32 bit signed displacement */
763 /* 64 bit displacement */
765 /* Accumulator %al/%ax/%eax/%rax/%st(0)/%xmm0 */
767 /* Register which can be used for base or index in memory operand. */
769 /* Register to hold in/out port addr = dx */
771 /* Register to hold shift count = cl */
773 /* Absolute address for jump. */
775 /* String insn operand with fixed es segment */
779 /* WORD size. 2 byte */
781 /* DWORD size. 4 byte */
783 /* FWORD size. 6 byte */
785 /* QWORD size. 8 byte */
787 /* TBYTE size. 10 byte */
795 /* Unspecified memory size. */
797 /* Any memory size. */
800 /* Bound register. */
803 /* The number of bits in i386_operand_type. */
807 #define OTNumOfUints \
808 ((OTNum - 1) / sizeof (unsigned int) / CHAR_BIT + 1)
809 #define OTNumOfBits \
810 (OTNumOfUints * sizeof (unsigned int) * CHAR_BIT)
812 /* If you get a compiler error for zero width of the unused field,
814 #define OTUnused OTNum
816 typedef union i386_operand_type
820 unsigned int class:CLASS_WIDTH;
821 unsigned int regmmx:1;
822 unsigned int regsimd:1;
823 unsigned int regmask:1;
824 unsigned int control:1;
825 unsigned int debug:1;
830 unsigned int imm8s:1;
831 unsigned int imm16:1;
832 unsigned int imm32:1;
833 unsigned int imm32s:1;
834 unsigned int imm64:1;
835 unsigned int disp8:1;
836 unsigned int disp16:1;
837 unsigned int disp32:1;
838 unsigned int disp32s:1;
839 unsigned int disp64:1;
841 unsigned int baseindex:1;
842 unsigned int inoutportreg:1;
843 unsigned int shiftcount:1;
844 unsigned int jumpabsolute:1;
845 unsigned int esseg:1;
848 unsigned int dword:1;
849 unsigned int fword:1;
850 unsigned int qword:1;
851 unsigned int tbyte:1;
852 unsigned int xmmword:1;
853 unsigned int ymmword:1;
854 unsigned int zmmword:1;
855 unsigned int unspecified:1;
856 unsigned int anysize:1;
857 unsigned int regbnd:1;
859 unsigned int unused:(OTNumOfBits - OTUnused);
862 unsigned int array[OTNumOfUints];
865 typedef struct insn_template
867 /* instruction name sans width suffix ("mov" for movl insns) */
870 /* base_opcode is the fundamental opcode byte without optional
872 unsigned int base_opcode;
873 #define Opcode_D 0x2 /* Direction bit:
874 set if Reg --> Regmem;
875 unset if Regmem --> Reg. */
876 #define Opcode_FloatR 0x8 /* Bit to swap src/dest for float insns. */
877 #define Opcode_FloatD 0x400 /* Direction bit for float insns. */
878 #define Opcode_SIMD_FloatD 0x1 /* Direction bit for SIMD fp insns. */
879 #define Opcode_SIMD_IntD 0x10 /* Direction bit for SIMD int insns. */
881 /* extension_opcode is the 3 bit extension for group <n> insns.
882 This field is also used to store the 8-bit opcode suffix for the
883 AMD 3DNow! instructions.
884 If this template has no extension opcode (the usual case) use None
886 unsigned short extension_opcode;
887 #define None 0xffff /* If no extension_opcode is possible. */
890 unsigned char opcode_length;
892 /* how many operands */
893 unsigned char operands;
895 /* cpu feature flags */
896 i386_cpu_flags cpu_flags;
898 /* the bits in opcode_modifier are used to generate the final opcode from
899 the base_opcode. These bits also are used to detect alternate forms of
900 the same instruction */
901 i386_opcode_modifier opcode_modifier;
903 /* operand_types[i] describes the type of operand i. This is made
904 by OR'ing together all of the possible type masks. (e.g.
905 'operand_types[i] = Reg|Imm' specifies that operand i can be
906 either a register or an immediate operand. */
907 i386_operand_type operand_types[MAX_OPERANDS];
911 extern const insn_template i386_optab[];
913 /* these are for register name --> number & type hash lookup */
917 i386_operand_type reg_type;
918 unsigned char reg_flags;
919 #define RegRex 0x1 /* Extended register. */
920 #define RegRex64 0x2 /* Extended 8 bit register. */
921 #define RegVRex 0x4 /* Extended vector register. */
922 unsigned char reg_num;
923 #define RegIP ((unsigned char ) ~0)
924 /* EIZ and RIZ are fake index registers. */
925 #define RegIZ (RegIP - 1)
926 /* FLAT is a fake segment register (Intel mode). */
927 #define RegFlat ((unsigned char) ~0)
928 signed char dw2_regnum[2];
929 #define Dw2Inval (-1)
933 /* Entries in i386_regtab. */
936 #define REGNAM_EAX 41
938 extern const reg_entry i386_regtab[];
939 extern const unsigned int i386_regtab_size;
944 unsigned int seg_prefix;
948 extern const seg_entry cs;
949 extern const seg_entry ds;
950 extern const seg_entry ss;
951 extern const seg_entry es;
952 extern const seg_entry fs;
953 extern const seg_entry gs;