1 /* Declarations for Intel 80386 opcode table
2 Copyright (C) 2007-2016 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 /* CLFLUSH Instruction support required */
48 /* NOP Instruction support required */
50 /* SYSCALL Instructions support required */
52 /* Floating point support required */
54 /* i287 support required */
56 /* i387 support required */
58 /* i686 and floating point support required */
60 /* SSE3 and floating point support required */
62 /* MMX support required */
64 /* SSE support required */
66 /* SSE2 support required */
68 /* 3dnow! support required */
70 /* 3dnow! Extensions support required */
72 /* SSE3 support required */
74 /* VIA PadLock required */
76 /* AMD Secure Virtual Machine Ext-s required */
78 /* VMX Instructions required */
80 /* SMX Instructions required */
82 /* SSSE3 support required */
84 /* SSE4a support required */
86 /* ABM New Instructions required */
88 /* SSE4.1 support required */
90 /* SSE4.2 support required */
92 /* AVX support required */
94 /* AVX2 support required */
96 /* Intel AVX-512 Foundation Instructions support required */
98 /* Intel AVX-512 Conflict Detection Instructions support required */
100 /* Intel AVX-512 Exponential and Reciprocal Instructions support
103 /* Intel AVX-512 Prefetch Instructions support required */
105 /* Intel AVX-512 VL Instructions support required. */
107 /* Intel AVX-512 DQ Instructions support required. */
109 /* Intel AVX-512 BW Instructions support required. */
111 /* Intel L1OM support required */
113 /* Intel K1OM support required */
115 /* Intel IAMCU support required */
117 /* Xsave/xrstor New Instructions support required */
119 /* Xsaveopt New Instructions support required */
121 /* AES support required */
123 /* PCLMUL support required */
125 /* FMA support required */
127 /* FMA4 support required */
129 /* XOP support required */
131 /* LWP support required */
133 /* BMI support required */
135 /* TBM support required */
137 /* MOVBE Instruction support required */
139 /* CMPXCHG16B instruction support required. */
141 /* EPT Instructions required */
143 /* RDTSCP Instruction support required */
145 /* FSGSBASE Instructions required */
147 /* RDRND Instructions required */
149 /* F16C Instructions required */
151 /* Intel BMI2 support required */
153 /* LZCNT support required */
155 /* HLE support required */
157 /* RTM support required */
159 /* INVPCID Instructions required */
161 /* VMFUNC Instruction required */
163 /* Intel MPX Instructions required */
165 /* 64bit support available, used by -march= in assembler. */
167 /* RDRSEED instruction required. */
169 /* Multi-presisionn add-carry instructions are required. */
171 /* Supports prefetchw and prefetch instructions. */
173 /* SMAP instructions required. */
175 /* SHA instructions required. */
177 /* VREX support required */
179 /* CLFLUSHOPT instruction required */
181 /* XSAVES/XRSTORS instruction required */
183 /* XSAVEC instruction required */
185 /* PREFETCHWT1 instruction required */
187 /* SE1 instruction required */
189 /* CLWB instruction required */
191 /* PCOMMIT instruction required */
193 /* Intel AVX-512 IFMA Instructions support required. */
195 /* Intel AVX-512 VBMI Instructions support required. */
197 /* mwaitx instruction required */
199 /* Clzero instruction required */
201 /* OSPKE instruction required */
203 /* 64bit support required */
205 /* Not supported in the 64bit mode */
207 /* AMD64 support required */
209 /* Intel64 support required */
211 /* The last bitfield in i386_cpu_flags. */
215 #define CpuNumOfUints \
216 (CpuMax / sizeof (unsigned int) / CHAR_BIT + 1)
217 #define CpuNumOfBits \
218 (CpuNumOfUints * sizeof (unsigned int) * CHAR_BIT)
220 /* If you get a compiler error for zero width of the unused field,
222 #define CpuUnused (CpuMax + 1)
224 /* We can check if an instruction is available with array instead
226 typedef union i386_cpu_flags
230 unsigned int cpui186:1;
231 unsigned int cpui286:1;
232 unsigned int cpui386:1;
233 unsigned int cpui486:1;
234 unsigned int cpui586:1;
235 unsigned int cpui686:1;
236 unsigned int cpuclflush:1;
237 unsigned int cpunop:1;
238 unsigned int cpusyscall:1;
239 unsigned int cpu8087:1;
240 unsigned int cpu287:1;
241 unsigned int cpu387:1;
242 unsigned int cpu687:1;
243 unsigned int cpufisttp:1;
244 unsigned int cpummx:1;
245 unsigned int cpusse:1;
246 unsigned int cpusse2:1;
247 unsigned int cpua3dnow:1;
248 unsigned int cpua3dnowa:1;
249 unsigned int cpusse3:1;
250 unsigned int cpupadlock:1;
251 unsigned int cpusvme:1;
252 unsigned int cpuvmx:1;
253 unsigned int cpusmx:1;
254 unsigned int cpussse3:1;
255 unsigned int cpusse4a:1;
256 unsigned int cpuabm:1;
257 unsigned int cpusse4_1:1;
258 unsigned int cpusse4_2:1;
259 unsigned int cpuavx:1;
260 unsigned int cpuavx2:1;
261 unsigned int cpuavx512f:1;
262 unsigned int cpuavx512cd:1;
263 unsigned int cpuavx512er:1;
264 unsigned int cpuavx512pf:1;
265 unsigned int cpuavx512vl:1;
266 unsigned int cpuavx512dq:1;
267 unsigned int cpuavx512bw:1;
268 unsigned int cpul1om:1;
269 unsigned int cpuk1om:1;
270 unsigned int cpuiamcu:1;
271 unsigned int cpuxsave:1;
272 unsigned int cpuxsaveopt:1;
273 unsigned int cpuaes:1;
274 unsigned int cpupclmul:1;
275 unsigned int cpufma:1;
276 unsigned int cpufma4:1;
277 unsigned int cpuxop:1;
278 unsigned int cpulwp:1;
279 unsigned int cpubmi:1;
280 unsigned int cputbm:1;
281 unsigned int cpumovbe:1;
282 unsigned int cpucx16:1;
283 unsigned int cpuept:1;
284 unsigned int cpurdtscp:1;
285 unsigned int cpufsgsbase:1;
286 unsigned int cpurdrnd:1;
287 unsigned int cpuf16c:1;
288 unsigned int cpubmi2:1;
289 unsigned int cpulzcnt:1;
290 unsigned int cpuhle:1;
291 unsigned int cpurtm:1;
292 unsigned int cpuinvpcid:1;
293 unsigned int cpuvmfunc:1;
294 unsigned int cpumpx:1;
295 unsigned int cpulm:1;
296 unsigned int cpurdseed:1;
297 unsigned int cpuadx:1;
298 unsigned int cpuprfchw:1;
299 unsigned int cpusmap:1;
300 unsigned int cpusha:1;
301 unsigned int cpuvrex:1;
302 unsigned int cpuclflushopt:1;
303 unsigned int cpuxsaves:1;
304 unsigned int cpuxsavec:1;
305 unsigned int cpuprefetchwt1:1;
306 unsigned int cpuse1:1;
307 unsigned int cpuclwb:1;
308 unsigned int cpupcommit:1;
309 unsigned int cpuavx512ifma:1;
310 unsigned int cpuavx512vbmi:1;
311 unsigned int cpumwaitx:1;
312 unsigned int cpuclzero:1;
313 unsigned int cpuospke:1;
314 unsigned int cpu64:1;
315 unsigned int cpuno64:1;
316 unsigned int cpuamd64:1;
317 unsigned int cpuintel64:1;
319 unsigned int unused:(CpuNumOfBits - CpuUnused);
322 unsigned int array[CpuNumOfUints];
325 /* Position of opcode_modifier bits. */
329 /* has direction bit. */
331 /* set if operands can be words or dwords encoded the canonical way */
333 /* Skip the current insn and use the next insn in i386-opc.tbl to swap
334 operand in encoding. */
336 /* insn has a modrm byte. */
338 /* register is in low 3 bits of opcode */
340 /* special case for jump insns. */
346 /* special case for intersegment leaps/calls */
348 /* FP insn memory format bit, sized by 0x4 */
350 /* src/dest swap for floats. */
352 /* has float insn direction bit. */
354 /* needs size prefix if in 32-bit mode */
356 /* needs size prefix if in 16-bit mode */
358 /* needs size prefix if in 64-bit mode */
360 /* check register size. */
362 /* instruction ignores operand size prefix and in Intel mode ignores
363 mnemonic size suffix check. */
365 /* default insn size depends on mode */
367 /* b suffix on instruction illegal */
369 /* w suffix on instruction illegal */
371 /* l suffix on instruction illegal */
373 /* s suffix on instruction illegal */
375 /* q suffix on instruction illegal */
377 /* long double suffix on instruction illegal */
379 /* instruction needs FWAIT */
381 /* quick test for string instructions */
383 /* quick test if branch instruction is MPX supported */
385 /* quick test for lockable instructions */
387 /* fake an extra reg operand for clr, imul and special register
388 processing for some instructions. */
390 /* The first operand must be xmm0 */
392 /* An implicit xmm0 as the first operand */
394 /* The HLE prefix is OK:
395 1. With a LOCK prefix.
396 2. With or without a LOCK prefix.
397 3. With a RELEASE (0xf3) prefix.
399 #define HLEPrefixNone 0
400 #define HLEPrefixLock 1
401 #define HLEPrefixAny 2
402 #define HLEPrefixRelease 3
404 /* An instruction on which a "rep" prefix is acceptable. */
406 /* Convert to DWORD */
408 /* Convert to QWORD */
410 /* Address prefix changes operand 0 */
412 /* opcode is a prefix */
414 /* instruction has extension in 8 bit imm */
416 /* instruction don't need Rex64 prefix. */
418 /* instruction require Rex64 prefix. */
420 /* deprecated fp insn, gets a warning */
422 /* insn has VEX prefix:
423 1: 128bit VEX prefix.
424 2: 256bit VEX prefix.
425 3: Scalar VEX prefix.
431 /* How to encode VEX.vvvv:
432 0: VEX.vvvv must be 1111b.
433 1: VEX.NDS. Register-only source is encoded in VEX.vvvv where
434 the content of source registers will be preserved.
435 VEX.DDS. The second register operand is encoded in VEX.vvvv
436 where the content of first source register will be overwritten
438 VEX.NDD2. The second destination register operand is encoded in
439 VEX.vvvv for instructions with 2 destination register operands.
440 For assembler, there are no difference between VEX.NDS, VEX.DDS
442 2. VEX.NDD. Register destination is encoded in VEX.vvvv for
443 instructions with 1 destination register operand.
444 3. VEX.LWP. Register destination is encoded in VEX.vvvv and one
445 of the operands can access a memory location.
451 /* How the VEX.W bit is used:
452 0: Set by the REX.W bit.
453 1: VEX.W0. Should always be 0.
454 2: VEX.W1. Should always be 1.
459 /* VEX opcode prefix:
460 0: VEX 0x0F opcode prefix.
461 1: VEX 0x0F38 opcode prefix.
462 2: VEX 0x0F3A opcode prefix
463 3: XOP 0x08 opcode prefix.
464 4: XOP 0x09 opcode prefix
465 5: XOP 0x0A opcode prefix.
474 /* number of VEX source operands:
475 0: <= 2 source operands.
476 1: 2 XOP source operands.
477 2: 3 source operands.
479 #define XOP2SOURCES 1
480 #define VEX3SOURCES 2
482 /* instruction has VEX 8 bit imm */
484 /* Instruction with vector SIB byte:
485 1: 128bit vector register.
486 2: 256bit vector register.
487 3: 512bit vector register.
493 /* SSE to AVX support required */
495 /* No AVX equivalent */
498 /* insn has EVEX prefix:
499 1: 512bit EVEX prefix.
500 2: 128bit EVEX prefix.
501 3: 256bit EVEX prefix.
502 4: Length-ignored (LIG) EVEX prefix.
510 /* AVX512 masking support:
513 3: Both zeroing and merging masking.
515 #define ZEROING_MASKING 1
516 #define MERGING_MASKING 2
517 #define BOTH_MASKING 3
520 /* Input element size of vector insn:
531 #define NO_BROADCAST 0
532 #define BROADCAST_1TO16 1
533 #define BROADCAST_1TO8 2
534 #define BROADCAST_1TO4 3
535 #define BROADCAST_1TO2 4
538 /* Static rounding control is supported. */
541 /* Supress All Exceptions is supported. */
544 /* Copressed Disp8*N attribute. */
547 /* Default mask isn't allowed. */
550 /* Compatible with old (<= 2.8.1) versions of gcc */
558 /* The last bitfield in i386_opcode_modifier. */
562 typedef struct i386_opcode_modifier
567 unsigned int modrm:1;
568 unsigned int shortform:1;
570 unsigned int jumpdword:1;
571 unsigned int jumpbyte:1;
572 unsigned int jumpintersegment:1;
573 unsigned int floatmf:1;
574 unsigned int floatr:1;
575 unsigned int floatd:1;
576 unsigned int size16:1;
577 unsigned int size32:1;
578 unsigned int size64:1;
579 unsigned int checkregsize:1;
580 unsigned int ignoresize:1;
581 unsigned int defaultsize:1;
582 unsigned int no_bsuf:1;
583 unsigned int no_wsuf:1;
584 unsigned int no_lsuf:1;
585 unsigned int no_ssuf:1;
586 unsigned int no_qsuf:1;
587 unsigned int no_ldsuf:1;
588 unsigned int fwait:1;
589 unsigned int isstring:1;
590 unsigned int bndprefixok:1;
591 unsigned int islockable:1;
592 unsigned int regkludge:1;
593 unsigned int firstxmm0:1;
594 unsigned int implicit1stxmm0:1;
595 unsigned int hleprefixok:2;
596 unsigned int repprefixok:1;
597 unsigned int todword:1;
598 unsigned int toqword:1;
599 unsigned int addrprefixop0:1;
600 unsigned int isprefix:1;
601 unsigned int immext:1;
602 unsigned int norex64:1;
603 unsigned int rex64:1;
606 unsigned int vexvvvv:2;
608 unsigned int vexopcode:3;
609 unsigned int vexsources:2;
610 unsigned int veximmext:1;
611 unsigned int vecsib:2;
612 unsigned int sse2avx:1;
613 unsigned int noavx:1;
615 unsigned int masking:2;
616 unsigned int vecesize:1;
617 unsigned int broadcast:3;
618 unsigned int staticrounding:1;
620 unsigned int disp8memshift:3;
621 unsigned int nodefmask:1;
622 unsigned int oldgcc:1;
623 unsigned int attmnemonic:1;
624 unsigned int attsyntax:1;
625 unsigned int intelsyntax:1;
626 } i386_opcode_modifier;
628 /* Position of operand_type bits. */
640 /* Floating pointer stack register */
648 /* AVX512 registers */
650 /* Vector Mask registers */
652 /* Control register */
658 /* 2 bit segment register */
660 /* 3 bit segment register */
662 /* 1 bit immediate */
664 /* 8 bit immediate */
666 /* 8 bit immediate sign extended */
668 /* 16 bit immediate */
670 /* 32 bit immediate */
672 /* 32 bit immediate sign extended */
674 /* 64 bit immediate */
676 /* 8bit/16bit/32bit displacements are used in different ways,
677 depending on the instruction. For jumps, they specify the
678 size of the PC relative displacement, for instructions with
679 memory operand, they specify the size of the offset relative
680 to the base register, and for instructions with memory offset
681 such as `mov 1234,%al' they specify the size of the offset
682 relative to the segment base. */
683 /* 8 bit displacement */
685 /* 16 bit displacement */
687 /* 32 bit displacement */
689 /* 32 bit signed displacement */
691 /* 64 bit displacement */
693 /* Accumulator %al/%ax/%eax/%rax */
695 /* Floating pointer top stack register %st(0) */
697 /* Register which can be used for base or index in memory operand. */
699 /* Register to hold in/out port addr = dx */
701 /* Register to hold shift count = cl */
703 /* Absolute address for jump. */
705 /* String insn operand with fixed es segment */
707 /* RegMem is for instructions with a modrm byte where the register
708 destination operand should be encoded in the mod and regmem fields.
709 Normally, it will be encoded in the reg field. We add a RegMem
710 flag to the destination register operand to indicate that it should
711 be encoded in the regmem field. */
717 /* WORD memory. 2 byte */
719 /* DWORD memory. 4 byte */
721 /* FWORD memory. 6 byte */
723 /* QWORD memory. 8 byte */
725 /* TBYTE memory. 10 byte */
727 /* XMMWORD memory. */
729 /* YMMWORD memory. */
731 /* ZMMWORD memory. */
733 /* Unspecified memory size. */
735 /* Any memory size. */
738 /* Vector 4 bit immediate. */
741 /* Bound register. */
744 /* Vector 8bit displacement */
747 /* The last bitfield in i386_operand_type. */
751 #define OTNumOfUints \
752 (OTMax / sizeof (unsigned int) / CHAR_BIT + 1)
753 #define OTNumOfBits \
754 (OTNumOfUints * sizeof (unsigned int) * CHAR_BIT)
756 /* If you get a compiler error for zero width of the unused field,
758 #define OTUnused (OTMax + 1)
760 typedef union i386_operand_type
765 unsigned int reg16:1;
766 unsigned int reg32:1;
767 unsigned int reg64:1;
768 unsigned int floatreg:1;
769 unsigned int regmmx:1;
770 unsigned int regxmm:1;
771 unsigned int regymm:1;
772 unsigned int regzmm:1;
773 unsigned int regmask:1;
774 unsigned int control:1;
775 unsigned int debug:1;
777 unsigned int sreg2:1;
778 unsigned int sreg3:1;
781 unsigned int imm8s:1;
782 unsigned int imm16:1;
783 unsigned int imm32:1;
784 unsigned int imm32s:1;
785 unsigned int imm64:1;
786 unsigned int disp8:1;
787 unsigned int disp16:1;
788 unsigned int disp32:1;
789 unsigned int disp32s:1;
790 unsigned int disp64:1;
792 unsigned int floatacc:1;
793 unsigned int baseindex:1;
794 unsigned int inoutportreg:1;
795 unsigned int shiftcount:1;
796 unsigned int jumpabsolute:1;
797 unsigned int esseg:1;
798 unsigned int regmem:1;
802 unsigned int dword:1;
803 unsigned int fword:1;
804 unsigned int qword:1;
805 unsigned int tbyte:1;
806 unsigned int xmmword:1;
807 unsigned int ymmword:1;
808 unsigned int zmmword:1;
809 unsigned int unspecified:1;
810 unsigned int anysize:1;
811 unsigned int vec_imm4:1;
812 unsigned int regbnd:1;
813 unsigned int vec_disp8:1;
815 unsigned int unused:(OTNumOfBits - OTUnused);
818 unsigned int array[OTNumOfUints];
821 typedef struct insn_template
823 /* instruction name sans width suffix ("mov" for movl insns) */
826 /* how many operands */
827 unsigned int operands;
829 /* base_opcode is the fundamental opcode byte without optional
831 unsigned int base_opcode;
832 #define Opcode_D 0x2 /* Direction bit:
833 set if Reg --> Regmem;
834 unset if Regmem --> Reg. */
835 #define Opcode_FloatR 0x8 /* Bit to swap src/dest for float insns. */
836 #define Opcode_FloatD 0x400 /* Direction bit for float insns. */
838 /* extension_opcode is the 3 bit extension for group <n> insns.
839 This field is also used to store the 8-bit opcode suffix for the
840 AMD 3DNow! instructions.
841 If this template has no extension opcode (the usual case) use None
843 unsigned int extension_opcode;
844 #define None 0xffff /* If no extension_opcode is possible. */
847 unsigned char opcode_length;
849 /* cpu feature flags */
850 i386_cpu_flags cpu_flags;
852 /* the bits in opcode_modifier are used to generate the final opcode from
853 the base_opcode. These bits also are used to detect alternate forms of
854 the same instruction */
855 i386_opcode_modifier opcode_modifier;
857 /* operand_types[i] describes the type of operand i. This is made
858 by OR'ing together all of the possible type masks. (e.g.
859 'operand_types[i] = Reg|Imm' specifies that operand i can be
860 either a register or an immediate operand. */
861 i386_operand_type operand_types[MAX_OPERANDS];
865 extern const insn_template i386_optab[];
867 /* these are for register name --> number & type hash lookup */
871 i386_operand_type reg_type;
872 unsigned char reg_flags;
873 #define RegRex 0x1 /* Extended register. */
874 #define RegRex64 0x2 /* Extended 8 bit register. */
875 #define RegVRex 0x4 /* Extended vector register. */
876 unsigned char reg_num;
877 #define RegRip ((unsigned char ) ~0)
878 #define RegEip (RegRip - 1)
879 /* EIZ and RIZ are fake index registers. */
880 #define RegEiz (RegEip - 1)
881 #define RegRiz (RegEiz - 1)
882 /* FLAT is a fake segment register (Intel mode). */
883 #define RegFlat ((unsigned char) ~0)
884 signed char dw2_regnum[2];
885 #define Dw2Inval (-1)
889 /* Entries in i386_regtab. */
892 #define REGNAM_EAX 41
894 extern const reg_entry i386_regtab[];
895 extern const unsigned int i386_regtab_size;
900 unsigned int seg_prefix;
904 extern const seg_entry cs;
905 extern const seg_entry ds;
906 extern const seg_entry ss;
907 extern const seg_entry es;
908 extern const seg_entry fs;
909 extern const seg_entry gs;