1 /* Declarations for Intel 80386 opcode table
2 Copyright (C) 2007-2020 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 /* LZCNT support required */
92 /* POPCNT support required */
94 /* SSE4.1 support required */
96 /* SSE4.2 support required */
98 /* AVX support required */
100 /* AVX2 support required */
102 /* Intel AVX-512 Foundation Instructions support required */
104 /* Intel AVX-512 Conflict Detection Instructions support required */
106 /* Intel AVX-512 Exponential and Reciprocal Instructions support
109 /* Intel AVX-512 Prefetch Instructions support required */
111 /* Intel AVX-512 VL Instructions support required. */
113 /* Intel AVX-512 DQ Instructions support required. */
115 /* Intel AVX-512 BW Instructions support required. */
117 /* Intel L1OM support required */
119 /* Intel K1OM support required */
121 /* Intel IAMCU support required */
123 /* Xsave/xrstor New Instructions support required */
125 /* Xsaveopt New Instructions support required */
127 /* AES support required */
129 /* PCLMUL support required */
131 /* FMA support required */
133 /* FMA4 support required */
135 /* XOP support required */
137 /* LWP support required */
139 /* BMI support required */
141 /* TBM support required */
143 /* MOVBE Instruction support required */
145 /* CMPXCHG16B instruction support required. */
147 /* EPT Instructions required */
149 /* RDTSCP Instruction support required */
151 /* FSGSBASE Instructions required */
153 /* RDRND Instructions required */
155 /* F16C Instructions required */
157 /* Intel BMI2 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 /* TDX Instructions support required. */
215 /* Intel AVX VNNI Instructions support required. */
217 /* mwaitx instruction required */
219 /* Clzero instruction required */
221 /* OSPKE instruction required */
223 /* RDPID instruction required */
225 /* PTWRITE instruction required */
227 /* CET instructions support required */
230 /* AMX-INT8 instructions required */
232 /* AMX-BF16 instructions required */
234 /* AMX-TILE instructions required */
236 /* GFNI instructions required */
238 /* VAES instructions required */
240 /* VPCLMULQDQ instructions required */
242 /* WBNOINVD instructions required */
244 /* PCONFIG instructions required */
246 /* WAITPKG instructions required */
248 /* UINTR instructions required */
250 /* CLDEMOTE instruction required */
252 /* MOVDIRI instruction support required */
254 /* MOVDIRR64B instruction required */
256 /* ENQCMD instruction required */
258 /* SERIALIZE instruction required */
260 /* RDPRU instruction required */
262 /* MCOMMIT instruction required */
264 /* SEV-ES instruction(s) required */
266 /* TSXLDTRK instruction required */
268 /* KL instruction support required */
270 /* WideKL instruction support required */
272 /* HRESET instruction required */
274 /* 64bit support required */
276 /* Not supported in the 64bit mode */
278 /* The last bitfield in i386_cpu_flags. */
282 #define CpuNumOfUints \
283 (CpuMax / sizeof (unsigned int) / CHAR_BIT + 1)
284 #define CpuNumOfBits \
285 (CpuNumOfUints * sizeof (unsigned int) * CHAR_BIT)
287 /* If you get a compiler error for zero width of the unused field,
289 #define CpuUnused (CpuMax + 1)
291 /* We can check if an instruction is available with array instead
293 typedef union i386_cpu_flags
297 unsigned int cpui186
:1;
298 unsigned int cpui286
:1;
299 unsigned int cpui386
:1;
300 unsigned int cpui486
:1;
301 unsigned int cpui586
:1;
302 unsigned int cpui686
:1;
303 unsigned int cpucmov
:1;
304 unsigned int cpufxsr
:1;
305 unsigned int cpuclflush
:1;
306 unsigned int cpunop
:1;
307 unsigned int cpusyscall
:1;
308 unsigned int cpu8087
:1;
309 unsigned int cpu287
:1;
310 unsigned int cpu387
:1;
311 unsigned int cpu687
:1;
312 unsigned int cpufisttp
:1;
313 unsigned int cpummx
:1;
314 unsigned int cpusse
:1;
315 unsigned int cpusse2
:1;
316 unsigned int cpua3dnow
:1;
317 unsigned int cpua3dnowa
:1;
318 unsigned int cpusse3
:1;
319 unsigned int cpupadlock
:1;
320 unsigned int cpusvme
:1;
321 unsigned int cpuvmx
:1;
322 unsigned int cpusmx
:1;
323 unsigned int cpussse3
:1;
324 unsigned int cpusse4a
:1;
325 unsigned int cpulzcnt
:1;
326 unsigned int cpupopcnt
:1;
327 unsigned int cpusse4_1
:1;
328 unsigned int cpusse4_2
:1;
329 unsigned int cpuavx
:1;
330 unsigned int cpuavx2
:1;
331 unsigned int cpuavx512f
:1;
332 unsigned int cpuavx512cd
:1;
333 unsigned int cpuavx512er
:1;
334 unsigned int cpuavx512pf
:1;
335 unsigned int cpuavx512vl
:1;
336 unsigned int cpuavx512dq
:1;
337 unsigned int cpuavx512bw
:1;
338 unsigned int cpul1om
:1;
339 unsigned int cpuk1om
:1;
340 unsigned int cpuiamcu
:1;
341 unsigned int cpuxsave
:1;
342 unsigned int cpuxsaveopt
:1;
343 unsigned int cpuaes
:1;
344 unsigned int cpupclmul
:1;
345 unsigned int cpufma
:1;
346 unsigned int cpufma4
:1;
347 unsigned int cpuxop
:1;
348 unsigned int cpulwp
:1;
349 unsigned int cpubmi
:1;
350 unsigned int cputbm
:1;
351 unsigned int cpumovbe
:1;
352 unsigned int cpucx16
:1;
353 unsigned int cpuept
:1;
354 unsigned int cpurdtscp
:1;
355 unsigned int cpufsgsbase
:1;
356 unsigned int cpurdrnd
:1;
357 unsigned int cpuf16c
:1;
358 unsigned int cpubmi2
:1;
359 unsigned int cpuhle
:1;
360 unsigned int cpurtm
:1;
361 unsigned int cpuinvpcid
:1;
362 unsigned int cpuvmfunc
:1;
363 unsigned int cpumpx
:1;
364 unsigned int cpulm
:1;
365 unsigned int cpurdseed
:1;
366 unsigned int cpuadx
:1;
367 unsigned int cpuprfchw
:1;
368 unsigned int cpusmap
:1;
369 unsigned int cpusha
:1;
370 unsigned int cpuclflushopt
:1;
371 unsigned int cpuxsaves
:1;
372 unsigned int cpuxsavec
:1;
373 unsigned int cpuprefetchwt1
:1;
374 unsigned int cpuse1
:1;
375 unsigned int cpuclwb
:1;
376 unsigned int cpuavx512ifma
:1;
377 unsigned int cpuavx512vbmi
:1;
378 unsigned int cpuavx512_4fmaps
:1;
379 unsigned int cpuavx512_4vnniw
:1;
380 unsigned int cpuavx512_vpopcntdq
:1;
381 unsigned int cpuavx512_vbmi2
:1;
382 unsigned int cpuavx512_vnni
:1;
383 unsigned int cpuavx512_bitalg
:1;
384 unsigned int cpuavx512_bf16
:1;
385 unsigned int cpuavx512_vp2intersect
:1;
386 unsigned int cputdx
:1;
387 unsigned int cpuavx_vnni
:1;
388 unsigned int cpumwaitx
:1;
389 unsigned int cpuclzero
:1;
390 unsigned int cpuospke
:1;
391 unsigned int cpurdpid
:1;
392 unsigned int cpuptwrite
:1;
393 unsigned int cpuibt
:1;
394 unsigned int cpushstk
:1;
395 unsigned int cpuamx_int8
:1;
396 unsigned int cpuamx_bf16
:1;
397 unsigned int cpuamx_tile
:1;
398 unsigned int cpugfni
:1;
399 unsigned int cpuvaes
:1;
400 unsigned int cpuvpclmulqdq
:1;
401 unsigned int cpuwbnoinvd
:1;
402 unsigned int cpupconfig
:1;
403 unsigned int cpuwaitpkg
:1;
404 unsigned int cpuuintr
:1;
405 unsigned int cpucldemote
:1;
406 unsigned int cpumovdiri
:1;
407 unsigned int cpumovdir64b
:1;
408 unsigned int cpuenqcmd
:1;
409 unsigned int cpuserialize
:1;
410 unsigned int cpurdpru
:1;
411 unsigned int cpumcommit
:1;
412 unsigned int cpusev_es
:1;
413 unsigned int cputsxldtrk
:1;
414 unsigned int cpukl
:1;
415 unsigned int cpuwidekl
:1;
416 unsigned int cpuhreset
:1;
417 unsigned int cpu64
:1;
418 unsigned int cpuno64
:1;
420 unsigned int unused
:(CpuNumOfBits
- CpuUnused
);
423 unsigned int array
[CpuNumOfUints
];
426 /* Position of opcode_modifier bits. */
430 /* has direction bit. */
432 /* set if operands can be both bytes and words/dwords/qwords, encoded the
433 canonical way; the base_opcode field should hold the encoding for byte
436 /* load form instruction. Must be placed before store form. */
438 /* insn has a modrm byte. */
440 /* special case for jump insns; value has to be 1 */
446 /* special case for intersegment leaps/calls */
447 #define JUMP_INTERSEGMENT 4
448 /* absolute address for jump */
449 #define JUMP_ABSOLUTE 5
451 /* FP insn memory format bit, sized by 0x4 */
453 /* src/dest swap for floats. */
455 /* needs size prefix if in 32-bit mode */
457 /* needs size prefix if in 16-bit mode */
459 /* needs size prefix if in 64-bit mode */
462 /* check register size. */
464 /* instruction ignores operand size prefix and in Intel mode ignores
465 mnemonic size suffix check. */
467 /* default insn size depends on mode */
468 #define DEFAULTSIZE 2
470 /* any memory size */
472 /* b suffix on instruction illegal */
474 /* w suffix on instruction illegal */
476 /* l suffix on instruction illegal */
478 /* s suffix on instruction illegal */
480 /* q suffix on instruction illegal */
482 /* long double suffix on instruction illegal */
484 /* instruction needs FWAIT */
486 /* IsString provides for a quick test for string instructions, and
487 its actual value also indicates which of the operands (if any)
488 requires use of the %es segment. */
489 #define IS_STRING_ES_OP0 2
490 #define IS_STRING_ES_OP1 3
492 /* RegMem is for instructions with a modrm byte where the register
493 destination operand should be encoded in the mod and regmem fields.
494 Normally, it will be encoded in the reg field. We add a RegMem
495 flag to indicate that it should be encoded in the regmem field. */
497 /* quick test if branch instruction is MPX supported */
499 /* quick test if NOTRACK prefix is supported */
501 /* quick test for lockable instructions */
503 /* fake an extra reg operand for clr, imul and special register
504 processing for some instructions. */
506 /* An implicit xmm0 as the first operand */
508 /* The HLE prefix is OK:
509 1. With a LOCK prefix.
510 2. With or without a LOCK prefix.
511 3. With a RELEASE (0xf3) prefix.
513 #define HLEPrefixNone 0
514 #define HLEPrefixLock 1
515 #define HLEPrefixAny 2
516 #define HLEPrefixRelease 3
518 /* An instruction on which a "rep" prefix is acceptable. */
520 /* Convert to DWORD */
522 /* Convert to QWORD */
524 /* Address prefix changes register operand */
526 /* opcode is a prefix */
528 /* instruction has extension in 8 bit imm */
530 /* instruction don't need Rex64 prefix. */
532 /* deprecated fp insn, gets a warning */
534 /* Intel AVX Instructions support via {vex} prefix */
536 /* insn has VEX prefix:
537 1: 128bit VEX prefix (or operand dependent).
538 2: 256bit VEX prefix.
539 3: Scalar VEX prefix.
545 /* How to encode VEX.vvvv:
546 0: VEX.vvvv must be 1111b.
547 1: VEX.NDS. Register-only source is encoded in VEX.vvvv where
548 the content of source registers will be preserved.
549 VEX.DDS. The second register operand is encoded in VEX.vvvv
550 where the content of first source register will be overwritten
552 VEX.NDD2. The second destination register operand is encoded in
553 VEX.vvvv for instructions with 2 destination register operands.
554 For assembler, there are no difference between VEX.NDS, VEX.DDS
556 2. VEX.NDD. Register destination is encoded in VEX.vvvv for
557 instructions with 1 destination register operand.
558 3. VEX.LWP. Register destination is encoded in VEX.vvvv and one
559 of the operands can access a memory location.
565 /* How the VEX.W bit is used:
566 0: Set by the REX.W bit.
567 1: VEX.W0. Should always be 0.
568 2: VEX.W1. Should always be 1.
569 3: VEX.WIG. The VEX.W bit is ignored.
575 /* Regular opcode prefix:
577 1: Add 0x66 opcode prefix.
578 2: Add 0xf2 opcode prefix.
579 3: Add 0xf3 opcode prefix.
581 #define PREFIX_NONE 0
582 #define PREFIX_0X66 1
583 #define PREFIX_0XF2 2
584 #define PREFIX_0XF3 3
585 /* VEX opcode prefix:
586 0: VEX 0x0F opcode prefix.
587 1: VEX 0x0F38 opcode prefix.
588 2: VEX 0x0F3A opcode prefix
589 3: XOP 0x08 opcode prefix.
590 4: XOP 0x09 opcode prefix
591 5: XOP 0x0A opcode prefix.
600 /* number of VEX source operands:
601 0: <= 2 source operands.
602 1: 2 XOP source operands.
603 2: 3 source operands.
605 #define XOP2SOURCES 1
606 #define VEX3SOURCES 2
608 /* Instruction with a mandatory SIB byte:
609 1: 128bit vector register.
610 2: 256bit vector register.
611 3: 512bit vector register.
619 /* SSE to AVX support required */
621 /* No AVX equivalent */
624 /* insn has EVEX prefix:
625 1: 512bit EVEX prefix.
626 2: 128bit EVEX prefix.
627 3: 256bit EVEX prefix.
628 4: Length-ignored (LIG) EVEX prefix.
629 5: Length determined from actual operands.
638 /* AVX512 masking support:
639 1: Zeroing or merging masking depending on operands.
641 3: Both zeroing and merging masking.
643 #define DYNAMIC_MASKING 1
644 #define MERGING_MASKING 2
645 #define BOTH_MASKING 3
648 /* AVX512 broadcast support. The number of bytes to broadcast is
649 1 << (Broadcast - 1):
655 #define BYTE_BROADCAST 1
656 #define WORD_BROADCAST 2
657 #define DWORD_BROADCAST 3
658 #define QWORD_BROADCAST 4
661 /* Static rounding control is supported. */
664 /* Supress All Exceptions is supported. */
667 /* Compressed Disp8*N attribute. */
668 #define DISP8_SHIFT_VL 7
671 /* Default mask isn't allowed. */
674 /* The second operand must be a vector register, {x,y,z}mmN, where N is a multiple of 4.
675 It implicitly denotes the register group of {x,y,z}mmN - {x,y,z}mm(N + 3).
679 /* Two source operands are swapped. */
682 /* Support encoding optimization. */
691 /* ISA64: Don't change the order without other code adjustments.
692 0: Common to AMD64 and Intel64.
699 #define INTEL64ONLY 3
701 /* The last bitfield in i386_opcode_modifier. */
705 typedef struct i386_opcode_modifier
710 unsigned int modrm
:1;
712 unsigned int floatmf
:1;
713 unsigned int floatr
:1;
715 unsigned int checkregsize
:1;
716 unsigned int mnemonicsize
:2;
717 unsigned int anysize
:1;
718 unsigned int no_bsuf
:1;
719 unsigned int no_wsuf
:1;
720 unsigned int no_lsuf
:1;
721 unsigned int no_ssuf
:1;
722 unsigned int no_qsuf
:1;
723 unsigned int no_ldsuf
:1;
724 unsigned int fwait
:1;
725 unsigned int isstring
:2;
726 unsigned int regmem
:1;
727 unsigned int bndprefixok
:1;
728 unsigned int notrackprefixok
:1;
729 unsigned int islockable
:1;
730 unsigned int regkludge
:1;
731 unsigned int implicit1stxmm0
:1;
732 unsigned int hleprefixok
:2;
733 unsigned int repprefixok
:1;
734 unsigned int todword
:1;
735 unsigned int toqword
:1;
736 unsigned int addrprefixopreg
:1;
737 unsigned int isprefix
:1;
738 unsigned int immext
:1;
739 unsigned int norex64
:1;
741 unsigned int pseudovexprefix
:1;
743 unsigned int vexvvvv
:2;
745 unsigned int opcodeprefix
:3;
746 unsigned int vexsources
:2;
748 unsigned int sse2avx
:1;
749 unsigned int noavx
:1;
751 unsigned int masking
:2;
752 unsigned int broadcast
:3;
753 unsigned int staticrounding
:1;
755 unsigned int disp8memshift
:3;
756 unsigned int nodefmask
:1;
757 unsigned int implicitquadgroup
:1;
758 unsigned int swapsources
:1;
759 unsigned int optimize
:1;
760 unsigned int attmnemonic
:1;
761 unsigned int attsyntax
:1;
762 unsigned int intelsyntax
:1;
763 unsigned int isa64
:2;
764 } i386_opcode_modifier
;
766 /* Operand classes. */
768 #define CLASS_WIDTH 4
772 Reg
, /* GPRs and FP regs, distinguished by operand size */
773 SReg
, /* Segment register */
774 RegCR
, /* Control register */
775 RegDR
, /* Debug register */
776 RegTR
, /* Test register */
777 RegMMX
, /* MMX register */
778 RegSIMD
, /* XMM/YMM/ZMM registers, distinguished by operand size */
779 RegMask
, /* Vector Mask register */
780 RegBND
, /* Bound register */
783 /* Special operand instances. */
785 #define INSTANCE_WIDTH 3
786 enum operand_instance
789 Accum
, /* Accumulator %al/%ax/%eax/%rax/%st(0)/%xmm0 */
790 RegC
, /* %cl / %cx / %ecx / %rcx, e.g. register to hold shift count */
791 RegD
, /* %dl / %dx / %edx / %rdx, e.g. register to hold I/O port addr */
792 RegB
, /* %bl / %bx / %ebx / %rbx */
795 /* Position of operand_type bits. */
799 /* Class and Instance */
800 ClassInstance
= CLASS_WIDTH
+ INSTANCE_WIDTH
- 1,
801 /* 1 bit immediate */
803 /* 8 bit immediate */
805 /* 8 bit immediate sign extended */
807 /* 16 bit immediate */
809 /* 32 bit immediate */
811 /* 32 bit immediate sign extended */
813 /* 64 bit immediate */
815 /* 8bit/16bit/32bit displacements are used in different ways,
816 depending on the instruction. For jumps, they specify the
817 size of the PC relative displacement, for instructions with
818 memory operand, they specify the size of the offset relative
819 to the base register, and for instructions with memory offset
820 such as `mov 1234,%al' they specify the size of the offset
821 relative to the segment base. */
822 /* 8 bit displacement */
824 /* 16 bit displacement */
826 /* 32 bit displacement */
828 /* 32 bit signed displacement */
830 /* 64 bit displacement */
832 /* Register which can be used for base or index in memory operand. */
836 /* WORD size. 2 byte */
838 /* DWORD size. 4 byte */
840 /* FWORD size. 6 byte */
842 /* QWORD size. 8 byte */
844 /* TBYTE size. 10 byte */
854 /* Unspecified memory size. */
857 /* The number of bits in i386_operand_type. */
861 #define OTNumOfUints \
862 ((OTNum - 1) / sizeof (unsigned int) / CHAR_BIT + 1)
863 #define OTNumOfBits \
864 (OTNumOfUints * sizeof (unsigned int) * CHAR_BIT)
866 /* If you get a compiler error for zero width of the unused field,
868 #define OTUnused OTNum
870 typedef union i386_operand_type
874 unsigned int class:CLASS_WIDTH
;
875 unsigned int instance
:INSTANCE_WIDTH
;
878 unsigned int imm8s
:1;
879 unsigned int imm16
:1;
880 unsigned int imm32
:1;
881 unsigned int imm32s
:1;
882 unsigned int imm64
:1;
883 unsigned int disp8
:1;
884 unsigned int disp16
:1;
885 unsigned int disp32
:1;
886 unsigned int disp32s
:1;
887 unsigned int disp64
:1;
888 unsigned int baseindex
:1;
891 unsigned int dword
:1;
892 unsigned int fword
:1;
893 unsigned int qword
:1;
894 unsigned int tbyte
:1;
895 unsigned int xmmword
:1;
896 unsigned int ymmword
:1;
897 unsigned int zmmword
:1;
898 unsigned int tmmword
:1;
899 unsigned int unspecified
:1;
901 unsigned int unused
:(OTNumOfBits
- OTUnused
);
904 unsigned int array
[OTNumOfUints
];
907 typedef struct insn_template
909 /* instruction name sans width suffix ("mov" for movl insns) */
912 /* base_opcode is the fundamental opcode byte without optional
914 unsigned int base_opcode
;
915 #define Opcode_D 0x2 /* Direction bit:
916 set if Reg --> Regmem;
917 unset if Regmem --> Reg. */
918 #define Opcode_FloatR 0x8 /* Bit to swap src/dest for float insns. */
919 #define Opcode_FloatD 0x400 /* Direction bit for float insns. */
920 #define Opcode_SIMD_FloatD 0x1 /* Direction bit for SIMD fp insns. */
921 #define Opcode_SIMD_IntD 0x10 /* Direction bit for SIMD int insns. */
923 /* Pseudo prefixes. */
924 #define Prefix_Disp8 0 /* {disp8} */
925 #define Prefix_Disp16 1 /* {disp16} */
926 #define Prefix_Disp32 2 /* {disp32} */
927 #define Prefix_Load 3 /* {load} */
928 #define Prefix_Store 4 /* {store} */
929 #define Prefix_VEX 5 /* {vex} */
930 #define Prefix_VEX3 6 /* {vex3} */
931 #define Prefix_EVEX 7 /* {evex} */
932 #define Prefix_REX 8 /* {rex} */
933 #define Prefix_NoOptimize 9 /* {nooptimize} */
935 /* extension_opcode is the 3 bit extension for group <n> insns.
936 This field is also used to store the 8-bit opcode suffix for the
937 AMD 3DNow! instructions.
938 If this template has no extension opcode (the usual case) use None
940 unsigned short extension_opcode
;
941 #define None 0xffff /* If no extension_opcode is possible. */
944 unsigned char opcode_length
;
946 /* how many operands */
947 unsigned char operands
;
949 /* cpu feature flags */
950 i386_cpu_flags cpu_flags
;
952 /* the bits in opcode_modifier are used to generate the final opcode from
953 the base_opcode. These bits also are used to detect alternate forms of
954 the same instruction */
955 i386_opcode_modifier opcode_modifier
;
957 /* operand_types[i] describes the type of operand i. This is made
958 by OR'ing together all of the possible type masks. (e.g.
959 'operand_types[i] = Reg|Imm' specifies that operand i can be
960 either a register or an immediate operand. */
961 i386_operand_type operand_types
[MAX_OPERANDS
];
965 extern const insn_template i386_optab
[];
967 /* these are for register name --> number & type hash lookup */
970 const char *reg_name
;
971 i386_operand_type reg_type
;
972 unsigned char reg_flags
;
973 #define RegRex 0x1 /* Extended register. */
974 #define RegRex64 0x2 /* Extended 8 bit register. */
975 #define RegVRex 0x4 /* Extended vector register. */
976 unsigned char reg_num
;
977 #define RegIP ((unsigned char ) ~0)
978 /* EIZ and RIZ are fake index registers. */
979 #define RegIZ (RegIP - 1)
980 /* FLAT is a fake segment register (Intel mode). */
981 #define RegFlat ((unsigned char) ~0)
982 signed char dw2_regnum
[2];
983 #define Dw2Inval (-1)
987 /* Entries in i386_regtab. */
990 #define REGNAM_EAX 41
992 extern const reg_entry i386_regtab
[];
993 extern const unsigned int i386_regtab_size
;
998 unsigned int seg_prefix
;
1002 extern const seg_entry cs
;
1003 extern const seg_entry ds
;
1004 extern const seg_entry ss
;
1005 extern const seg_entry es
;
1006 extern const seg_entry fs
;
1007 extern const seg_entry gs
;