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 /* mwaitx instruction required */
213 /* Clzero instruction required */
215 /* OSPKE instruction required */
217 /* RDPID instruction required */
219 /* PTWRITE instruction required */
221 /* CET instructions support required */
224 /* GFNI instructions required */
226 /* VAES instructions required */
228 /* VPCLMULQDQ instructions required */
230 /* WBNOINVD instructions required */
232 /* PCONFIG instructions required */
234 /* WAITPKG instructions required */
236 /* CLDEMOTE instruction required */
238 /* MOVDIRI instruction support required */
240 /* MOVDIRR64B instruction required */
242 /* 64bit support required */
244 /* Not supported in the 64bit mode */
246 /* The last bitfield in i386_cpu_flags. */
250 #define CpuNumOfUints \
251 (CpuMax / sizeof (unsigned int) / CHAR_BIT + 1)
252 #define CpuNumOfBits \
253 (CpuNumOfUints * sizeof (unsigned int) * CHAR_BIT)
255 /* If you get a compiler error for zero width of the unused field,
257 #define CpuUnused (CpuMax + 1)
259 /* We can check if an instruction is available with array instead
261 typedef union i386_cpu_flags
265 unsigned int cpui186:1;
266 unsigned int cpui286:1;
267 unsigned int cpui386:1;
268 unsigned int cpui486:1;
269 unsigned int cpui586:1;
270 unsigned int cpui686:1;
271 unsigned int cpucmov:1;
272 unsigned int cpufxsr:1;
273 unsigned int cpuclflush:1;
274 unsigned int cpunop:1;
275 unsigned int cpusyscall:1;
276 unsigned int cpu8087:1;
277 unsigned int cpu287:1;
278 unsigned int cpu387:1;
279 unsigned int cpu687:1;
280 unsigned int cpufisttp:1;
281 unsigned int cpummx:1;
282 unsigned int cpusse:1;
283 unsigned int cpusse2:1;
284 unsigned int cpua3dnow:1;
285 unsigned int cpua3dnowa:1;
286 unsigned int cpusse3:1;
287 unsigned int cpupadlock:1;
288 unsigned int cpusvme:1;
289 unsigned int cpuvmx:1;
290 unsigned int cpusmx:1;
291 unsigned int cpussse3:1;
292 unsigned int cpusse4a:1;
293 unsigned int cpuabm:1;
294 unsigned int cpusse4_1:1;
295 unsigned int cpusse4_2:1;
296 unsigned int cpuavx:1;
297 unsigned int cpuavx2:1;
298 unsigned int cpuavx512f:1;
299 unsigned int cpuavx512cd:1;
300 unsigned int cpuavx512er:1;
301 unsigned int cpuavx512pf:1;
302 unsigned int cpuavx512vl:1;
303 unsigned int cpuavx512dq:1;
304 unsigned int cpuavx512bw:1;
305 unsigned int cpul1om:1;
306 unsigned int cpuk1om:1;
307 unsigned int cpuiamcu:1;
308 unsigned int cpuxsave:1;
309 unsigned int cpuxsaveopt:1;
310 unsigned int cpuaes:1;
311 unsigned int cpupclmul:1;
312 unsigned int cpufma:1;
313 unsigned int cpufma4:1;
314 unsigned int cpuxop:1;
315 unsigned int cpulwp:1;
316 unsigned int cpubmi:1;
317 unsigned int cputbm:1;
318 unsigned int cpumovbe:1;
319 unsigned int cpucx16:1;
320 unsigned int cpuept:1;
321 unsigned int cpurdtscp:1;
322 unsigned int cpufsgsbase:1;
323 unsigned int cpurdrnd:1;
324 unsigned int cpuf16c:1;
325 unsigned int cpubmi2:1;
326 unsigned int cpulzcnt:1;
327 unsigned int cpuhle:1;
328 unsigned int cpurtm:1;
329 unsigned int cpuinvpcid:1;
330 unsigned int cpuvmfunc:1;
331 unsigned int cpumpx:1;
332 unsigned int cpulm:1;
333 unsigned int cpurdseed:1;
334 unsigned int cpuadx:1;
335 unsigned int cpuprfchw:1;
336 unsigned int cpusmap:1;
337 unsigned int cpusha:1;
338 unsigned int cpuclflushopt:1;
339 unsigned int cpuxsaves:1;
340 unsigned int cpuxsavec:1;
341 unsigned int cpuprefetchwt1:1;
342 unsigned int cpuse1:1;
343 unsigned int cpuclwb:1;
344 unsigned int cpuavx512ifma:1;
345 unsigned int cpuavx512vbmi:1;
346 unsigned int cpuavx512_4fmaps:1;
347 unsigned int cpuavx512_4vnniw:1;
348 unsigned int cpuavx512_vpopcntdq:1;
349 unsigned int cpuavx512_vbmi2:1;
350 unsigned int cpuavx512_vnni:1;
351 unsigned int cpuavx512_bitalg:1;
352 unsigned int cpuavx512_bf16:1;
353 unsigned int cpumwaitx:1;
354 unsigned int cpuclzero:1;
355 unsigned int cpuospke:1;
356 unsigned int cpurdpid:1;
357 unsigned int cpuptwrite:1;
358 unsigned int cpuibt:1;
359 unsigned int cpushstk:1;
360 unsigned int cpugfni:1;
361 unsigned int cpuvaes:1;
362 unsigned int cpuvpclmulqdq:1;
363 unsigned int cpuwbnoinvd:1;
364 unsigned int cpupconfig:1;
365 unsigned int cpuwaitpkg:1;
366 unsigned int cpucldemote:1;
367 unsigned int cpumovdiri:1;
368 unsigned int cpumovdir64b:1;
369 unsigned int cpu64:1;
370 unsigned int cpuno64:1;
372 unsigned int unused:(CpuNumOfBits - CpuUnused);
375 unsigned int array[CpuNumOfUints];
378 /* Position of opcode_modifier bits. */
382 /* has direction bit. */
384 /* set if operands can be words or dwords encoded the canonical way */
386 /* load form instruction. Must be placed before store form. */
388 /* insn has a modrm byte. */
390 /* register is in low 3 bits of opcode */
392 /* special case for jump insns. */
398 /* special case for intersegment leaps/calls */
400 /* FP insn memory format bit, sized by 0x4 */
402 /* src/dest swap for floats. */
404 /* needs size prefix if in 32-bit mode */
406 /* needs size prefix if in 16-bit mode */
408 /* needs size prefix if in 64-bit mode */
411 /* check register size. */
413 /* instruction ignores operand size prefix and in Intel mode ignores
414 mnemonic size suffix check. */
416 /* default insn size depends on mode */
418 /* b suffix on instruction illegal */
420 /* w suffix on instruction illegal */
422 /* l suffix on instruction illegal */
424 /* s suffix on instruction illegal */
426 /* q suffix on instruction illegal */
428 /* long double suffix on instruction illegal */
430 /* instruction needs FWAIT */
432 /* quick test for string instructions */
434 /* quick test if branch instruction is MPX supported */
436 /* quick test if NOTRACK prefix is supported */
438 /* quick test for lockable instructions */
440 /* fake an extra reg operand for clr, imul and special register
441 processing for some instructions. */
443 /* An implicit xmm0 as the first operand */
445 /* The HLE prefix is OK:
446 1. With a LOCK prefix.
447 2. With or without a LOCK prefix.
448 3. With a RELEASE (0xf3) prefix.
450 #define HLEPrefixNone 0
451 #define HLEPrefixLock 1
452 #define HLEPrefixAny 2
453 #define HLEPrefixRelease 3
455 /* An instruction on which a "rep" prefix is acceptable. */
457 /* Convert to DWORD */
459 /* Convert to QWORD */
461 /* Address prefix changes register operand */
463 /* opcode is a prefix */
465 /* instruction has extension in 8 bit imm */
467 /* instruction don't need Rex64 prefix. */
469 /* instruction require Rex64 prefix. */
471 /* deprecated fp insn, gets a warning */
473 /* insn has VEX prefix:
474 1: 128bit VEX prefix (or operand dependent).
475 2: 256bit VEX prefix.
476 3: Scalar VEX prefix.
482 /* How to encode VEX.vvvv:
483 0: VEX.vvvv must be 1111b.
484 1: VEX.NDS. Register-only source is encoded in VEX.vvvv where
485 the content of source registers will be preserved.
486 VEX.DDS. The second register operand is encoded in VEX.vvvv
487 where the content of first source register will be overwritten
489 VEX.NDD2. The second destination register operand is encoded in
490 VEX.vvvv for instructions with 2 destination register operands.
491 For assembler, there are no difference between VEX.NDS, VEX.DDS
493 2. VEX.NDD. Register destination is encoded in VEX.vvvv for
494 instructions with 1 destination register operand.
495 3. VEX.LWP. Register destination is encoded in VEX.vvvv and one
496 of the operands can access a memory location.
502 /* How the VEX.W bit is used:
503 0: Set by the REX.W bit.
504 1: VEX.W0. Should always be 0.
505 2: VEX.W1. Should always be 1.
506 3: VEX.WIG. The VEX.W bit is ignored.
512 /* VEX opcode prefix:
513 0: VEX 0x0F opcode prefix.
514 1: VEX 0x0F38 opcode prefix.
515 2: VEX 0x0F3A opcode prefix
516 3: XOP 0x08 opcode prefix.
517 4: XOP 0x09 opcode prefix
518 5: XOP 0x0A opcode prefix.
527 /* number of VEX source operands:
528 0: <= 2 source operands.
529 1: 2 XOP source operands.
530 2: 3 source operands.
532 #define XOP2SOURCES 1
533 #define VEX3SOURCES 2
535 /* Instruction with vector SIB byte:
536 1: 128bit vector register.
537 2: 256bit vector register.
538 3: 512bit vector register.
544 /* SSE to AVX support required */
546 /* No AVX equivalent */
549 /* insn has EVEX prefix:
550 1: 512bit EVEX prefix.
551 2: 128bit EVEX prefix.
552 3: 256bit EVEX prefix.
553 4: Length-ignored (LIG) EVEX prefix.
554 5: Length determined from actual operands.
563 /* AVX512 masking support:
564 1: Zeroing or merging masking depending on operands.
566 3: Both zeroing and merging masking.
568 #define DYNAMIC_MASKING 1
569 #define MERGING_MASKING 2
570 #define BOTH_MASKING 3
573 /* AVX512 broadcast support. The number of bytes to broadcast is
574 1 << (Broadcast - 1):
580 #define BYTE_BROADCAST 1
581 #define WORD_BROADCAST 2
582 #define DWORD_BROADCAST 3
583 #define QWORD_BROADCAST 4
586 /* Static rounding control is supported. */
589 /* Supress All Exceptions is supported. */
592 /* Compressed Disp8*N attribute. */
593 #define DISP8_SHIFT_VL 7
596 /* Default mask isn't allowed. */
599 /* The second operand must be a vector register, {x,y,z}mmN, where N is a multiple of 4.
600 It implicitly denotes the register group of {x,y,z}mmN - {x,y,z}mm(N + 3).
604 /* Support encoding optimization. */
617 /* The last bitfield in i386_opcode_modifier. */
621 typedef struct i386_opcode_modifier
626 unsigned int modrm:1;
627 unsigned int shortform:1;
629 unsigned int jumpdword:1;
630 unsigned int jumpbyte:1;
631 unsigned int jumpintersegment:1;
632 unsigned int floatmf:1;
633 unsigned int floatr:1;
635 unsigned int checkregsize:1;
636 unsigned int ignoresize:1;
637 unsigned int defaultsize:1;
638 unsigned int no_bsuf:1;
639 unsigned int no_wsuf:1;
640 unsigned int no_lsuf:1;
641 unsigned int no_ssuf:1;
642 unsigned int no_qsuf:1;
643 unsigned int no_ldsuf:1;
644 unsigned int fwait:1;
645 unsigned int isstring:1;
646 unsigned int bndprefixok:1;
647 unsigned int notrackprefixok:1;
648 unsigned int islockable:1;
649 unsigned int regkludge:1;
650 unsigned int implicit1stxmm0:1;
651 unsigned int hleprefixok:2;
652 unsigned int repprefixok:1;
653 unsigned int todword:1;
654 unsigned int toqword:1;
655 unsigned int addrprefixopreg:1;
656 unsigned int isprefix:1;
657 unsigned int immext:1;
658 unsigned int norex64:1;
659 unsigned int rex64:1;
662 unsigned int vexvvvv:2;
664 unsigned int vexopcode:3;
665 unsigned int vexsources:2;
666 unsigned int vecsib:2;
667 unsigned int sse2avx:1;
668 unsigned int noavx:1;
670 unsigned int masking:2;
671 unsigned int broadcast:3;
672 unsigned int staticrounding:1;
674 unsigned int disp8memshift:3;
675 unsigned int nodefmask:1;
676 unsigned int implicitquadgroup:1;
677 unsigned int optimize:1;
678 unsigned int attmnemonic:1;
679 unsigned int attsyntax:1;
680 unsigned int intelsyntax:1;
681 unsigned int amd64:1;
682 unsigned int intel64:1;
683 } i386_opcode_modifier;
685 /* Position of operand_type bits. */
689 /* Register (qualified by Byte, Word, etc) */
693 /* Vector registers */
695 /* Vector Mask registers */
697 /* Control register */
703 /* 2 bit segment register */
705 /* 3 bit segment register */
707 /* 1 bit immediate */
709 /* 8 bit immediate */
711 /* 8 bit immediate sign extended */
713 /* 16 bit immediate */
715 /* 32 bit immediate */
717 /* 32 bit immediate sign extended */
719 /* 64 bit immediate */
721 /* 8bit/16bit/32bit displacements are used in different ways,
722 depending on the instruction. For jumps, they specify the
723 size of the PC relative displacement, for instructions with
724 memory operand, they specify the size of the offset relative
725 to the base register, and for instructions with memory offset
726 such as `mov 1234,%al' they specify the size of the offset
727 relative to the segment base. */
728 /* 8 bit displacement */
730 /* 16 bit displacement */
732 /* 32 bit displacement */
734 /* 32 bit signed displacement */
736 /* 64 bit displacement */
738 /* Accumulator %al/%ax/%eax/%rax/%st(0)/%xmm0 */
740 /* Register which can be used for base or index in memory operand. */
742 /* Register to hold in/out port addr = dx */
744 /* Register to hold shift count = cl */
746 /* Absolute address for jump. */
748 /* String insn operand with fixed es segment */
750 /* RegMem is for instructions with a modrm byte where the register
751 destination operand should be encoded in the mod and regmem fields.
752 Normally, it will be encoded in the reg field. We add a RegMem
753 flag to the destination register operand to indicate that it should
754 be encoded in the regmem field. */
760 /* WORD size. 2 byte */
762 /* DWORD size. 4 byte */
764 /* FWORD size. 6 byte */
766 /* QWORD size. 8 byte */
768 /* TBYTE size. 10 byte */
776 /* Unspecified memory size. */
778 /* Any memory size. */
781 /* Vector 4 bit immediate. */
784 /* Bound register. */
787 /* The number of bitfields in i386_operand_type. */
791 #define OTNumOfUints \
792 ((OTNum - 1) / sizeof (unsigned int) / CHAR_BIT + 1)
793 #define OTNumOfBits \
794 (OTNumOfUints * sizeof (unsigned int) * CHAR_BIT)
796 /* If you get a compiler error for zero width of the unused field,
798 #define OTUnused OTNum
800 typedef union i386_operand_type
805 unsigned int regmmx:1;
806 unsigned int regsimd:1;
807 unsigned int regmask:1;
808 unsigned int control:1;
809 unsigned int debug:1;
811 unsigned int sreg2:1;
812 unsigned int sreg3:1;
815 unsigned int imm8s:1;
816 unsigned int imm16:1;
817 unsigned int imm32:1;
818 unsigned int imm32s:1;
819 unsigned int imm64:1;
820 unsigned int disp8:1;
821 unsigned int disp16:1;
822 unsigned int disp32:1;
823 unsigned int disp32s:1;
824 unsigned int disp64:1;
826 unsigned int baseindex:1;
827 unsigned int inoutportreg:1;
828 unsigned int shiftcount:1;
829 unsigned int jumpabsolute:1;
830 unsigned int esseg:1;
831 unsigned int regmem:1;
834 unsigned int dword:1;
835 unsigned int fword:1;
836 unsigned int qword:1;
837 unsigned int tbyte:1;
838 unsigned int xmmword:1;
839 unsigned int ymmword:1;
840 unsigned int zmmword:1;
841 unsigned int unspecified:1;
842 unsigned int anysize:1;
843 unsigned int vec_imm4:1;
844 unsigned int regbnd:1;
846 unsigned int unused:(OTNumOfBits - OTUnused);
849 unsigned int array[OTNumOfUints];
852 typedef struct insn_template
854 /* instruction name sans width suffix ("mov" for movl insns) */
857 /* how many operands */
858 unsigned int operands;
860 /* base_opcode is the fundamental opcode byte without optional
862 unsigned int base_opcode;
863 #define Opcode_D 0x2 /* Direction bit:
864 set if Reg --> Regmem;
865 unset if Regmem --> Reg. */
866 #define Opcode_FloatR 0x8 /* Bit to swap src/dest for float insns. */
867 #define Opcode_FloatD 0x400 /* Direction bit for float insns. */
868 #define Opcode_SIMD_FloatD 0x1 /* Direction bit for SIMD fp insns. */
869 #define Opcode_SIMD_IntD 0x10 /* Direction bit for SIMD int insns. */
871 /* extension_opcode is the 3 bit extension for group <n> insns.
872 This field is also used to store the 8-bit opcode suffix for the
873 AMD 3DNow! instructions.
874 If this template has no extension opcode (the usual case) use None
876 unsigned int extension_opcode;
877 #define None 0xffff /* If no extension_opcode is possible. */
880 unsigned char opcode_length;
882 /* cpu feature flags */
883 i386_cpu_flags cpu_flags;
885 /* the bits in opcode_modifier are used to generate the final opcode from
886 the base_opcode. These bits also are used to detect alternate forms of
887 the same instruction */
888 i386_opcode_modifier opcode_modifier;
890 /* operand_types[i] describes the type of operand i. This is made
891 by OR'ing together all of the possible type masks. (e.g.
892 'operand_types[i] = Reg|Imm' specifies that operand i can be
893 either a register or an immediate operand. */
894 i386_operand_type operand_types[MAX_OPERANDS];
898 extern const insn_template i386_optab[];
900 /* these are for register name --> number & type hash lookup */
904 i386_operand_type reg_type;
905 unsigned char reg_flags;
906 #define RegRex 0x1 /* Extended register. */
907 #define RegRex64 0x2 /* Extended 8 bit register. */
908 #define RegVRex 0x4 /* Extended vector register. */
909 unsigned char reg_num;
910 #define RegIP ((unsigned char ) ~0)
911 /* EIZ and RIZ are fake index registers. */
912 #define RegIZ (RegIP - 1)
913 /* FLAT is a fake segment register (Intel mode). */
914 #define RegFlat ((unsigned char) ~0)
915 signed char dw2_regnum[2];
916 #define Dw2Inval (-1)
920 /* Entries in i386_regtab. */
923 #define REGNAM_EAX 41
925 extern const reg_entry i386_regtab[];
926 extern const unsigned int i386_regtab_size;
931 unsigned int seg_prefix;
935 extern const seg_entry cs;
936 extern const seg_entry ds;
937 extern const seg_entry ss;
938 extern const seg_entry es;
939 extern const seg_entry fs;
940 extern const seg_entry gs;