Subversion Repositories Kolibri OS

Rev

Rev 5221 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
5221 serge 1
/* Declarations for Intel 80386 opcode table
6324 serge 2
   Copyright (C) 2007-2015 Free Software Foundation, Inc.
5221 serge 3
 
4
   This file is part of the GNU opcodes library.
5
 
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)
9
   any later version.
10
 
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.
15
 
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
19
   02110-1301, USA.  */
20
 
21
#include "opcode/i386.h"
22
#ifdef HAVE_LIMITS_H
23
#include 
24
#endif
25
 
26
#ifndef CHAR_BIT
27
#define CHAR_BIT 8
28
#endif
29
 
30
/* Position of cpu flags bitfiled.  */
31
 
32
enum
33
{
34
  /* i186 or better required */
35
  Cpu186 = 0,
36
  /* i286 or better required */
37
  Cpu286,
38
  /* i386 or better required */
39
  Cpu386,
40
  /* i486 or better required */
41
  Cpu486,
42
  /* i585 or better required */
43
  Cpu586,
44
  /* i686 or better required */
45
  Cpu686,
46
  /* CLFLUSH Instruction support required */
47
  CpuClflush,
48
  /* NOP Instruction support required */
49
  CpuNop,
50
  /* SYSCALL Instructions support required */
51
  CpuSYSCALL,
52
  /* Floating point support required */
53
  Cpu8087,
54
  /* i287 support required */
55
  Cpu287,
56
  /* i387 support required */
57
  Cpu387,
58
  /* i686 and floating point support required */
59
  Cpu687,
60
  /* SSE3 and floating point support required */
61
  CpuFISTTP,
62
  /* MMX support required */
63
  CpuMMX,
64
  /* SSE support required */
65
  CpuSSE,
66
  /* SSE2 support required */
67
  CpuSSE2,
68
  /* 3dnow! support required */
69
  Cpu3dnow,
70
  /* 3dnow! Extensions support required */
71
  Cpu3dnowA,
72
  /* SSE3 support required */
73
  CpuSSE3,
74
  /* VIA PadLock required */
75
  CpuPadLock,
76
  /* AMD Secure Virtual Machine Ext-s required */
77
  CpuSVME,
78
  /* VMX Instructions required */
79
  CpuVMX,
80
  /* SMX Instructions required */
81
  CpuSMX,
82
  /* SSSE3 support required */
83
  CpuSSSE3,
84
  /* SSE4a support required */
85
  CpuSSE4a,
86
  /* ABM New Instructions required */
87
  CpuABM,
88
  /* SSE4.1 support required */
89
  CpuSSE4_1,
90
  /* SSE4.2 support required */
91
  CpuSSE4_2,
92
  /* AVX support required */
93
  CpuAVX,
94
  /* AVX2 support required */
95
  CpuAVX2,
96
  /* Intel AVX-512 Foundation Instructions support required */
97
  CpuAVX512F,
98
  /* Intel AVX-512 Conflict Detection Instructions support required */
99
  CpuAVX512CD,
100
  /* Intel AVX-512 Exponential and Reciprocal Instructions support
101
     required */
102
  CpuAVX512ER,
103
  /* Intel AVX-512 Prefetch Instructions support required */
104
  CpuAVX512PF,
6324 serge 105
  /* Intel AVX-512 VL Instructions support required.  */
106
  CpuAVX512VL,
107
  /* Intel AVX-512 DQ Instructions support required.  */
108
  CpuAVX512DQ,
109
  /* Intel AVX-512 BW Instructions support required.  */
110
  CpuAVX512BW,
5221 serge 111
  /* Intel L1OM support required */
112
  CpuL1OM,
113
  /* Intel K1OM support required */
114
  CpuK1OM,
6324 serge 115
  /* Intel IAMCU support required */
116
  CpuIAMCU,
5221 serge 117
  /* Xsave/xrstor New Instructions support required */
118
  CpuXsave,
119
  /* Xsaveopt New Instructions support required */
120
  CpuXsaveopt,
121
  /* AES support required */
122
  CpuAES,
123
  /* PCLMUL support required */
124
  CpuPCLMUL,
125
  /* FMA support required */
126
  CpuFMA,
127
  /* FMA4 support required */
128
  CpuFMA4,
129
  /* XOP support required */
130
  CpuXOP,
131
  /* LWP support required */
132
  CpuLWP,
133
  /* BMI support required */
134
  CpuBMI,
135
  /* TBM support required */
136
  CpuTBM,
137
  /* MOVBE Instruction support required */
138
  CpuMovbe,
139
  /* CMPXCHG16B instruction support required.  */
140
  CpuCX16,
141
  /* EPT Instructions required */
142
  CpuEPT,
143
  /* RDTSCP Instruction support required */
144
  CpuRdtscp,
145
  /* FSGSBASE Instructions required */
146
  CpuFSGSBase,
147
  /* RDRND Instructions required */
148
  CpuRdRnd,
149
  /* F16C Instructions required */
150
  CpuF16C,
151
  /* Intel BMI2 support required */
152
  CpuBMI2,
153
  /* LZCNT support required */
154
  CpuLZCNT,
155
  /* HLE support required */
156
  CpuHLE,
157
  /* RTM support required */
158
  CpuRTM,
159
  /* INVPCID Instructions required */
160
  CpuINVPCID,
161
  /* VMFUNC Instruction required */
162
  CpuVMFUNC,
163
  /* Intel MPX Instructions required  */
164
  CpuMPX,
165
  /* 64bit support available, used by -march= in assembler.  */
166
  CpuLM,
167
  /* RDRSEED instruction required.  */
168
  CpuRDSEED,
169
  /* Multi-presisionn add-carry instructions are required.  */
170
  CpuADX,
171
  /* Supports prefetchw and prefetch instructions.  */
172
  CpuPRFCHW,
173
  /* SMAP instructions required.  */
174
  CpuSMAP,
175
  /* SHA instructions required.  */
176
  CpuSHA,
177
  /* VREX support required  */
178
  CpuVREX,
6324 serge 179
  /* CLFLUSHOPT instruction required */
180
  CpuClflushOpt,
181
  /* XSAVES/XRSTORS instruction required */
182
  CpuXSAVES,
183
  /* XSAVEC instruction required */
184
  CpuXSAVEC,
185
  /* PREFETCHWT1 instruction required */
186
  CpuPREFETCHWT1,
187
  /* SE1 instruction required */
188
  CpuSE1,
189
  /* CLWB instruction required */
190
  CpuCLWB,
191
  /* PCOMMIT instruction required */
192
  CpuPCOMMIT,
193
  /* Intel AVX-512 IFMA Instructions support required.  */
194
  CpuAVX512IFMA,
195
  /* Intel AVX-512 VBMI Instructions support required.  */
196
  CpuAVX512VBMI,
197
  /* mwaitx instruction required */
198
  CpuMWAITX,
199
  /* Clzero instruction required */
200
  CpuCLZERO,
201
  /* OSPKE instruction required */
202
  CpuOSPKE,
5221 serge 203
  /* 64bit support required  */
204
  Cpu64,
205
  /* Not supported in the 64bit mode  */
206
  CpuNo64,
6324 serge 207
  /* AMD64 support required  */
208
  CpuAMD64,
209
  /* Intel64 support required  */
210
  CpuIntel64,
5221 serge 211
  /* The last bitfield in i386_cpu_flags.  */
212
  CpuMax = CpuNo64
213
};
214
 
215
#define CpuNumOfUints \
216
  (CpuMax / sizeof (unsigned int) / CHAR_BIT + 1)
217
#define CpuNumOfBits \
218
  (CpuNumOfUints * sizeof (unsigned int) * CHAR_BIT)
219
 
220
/* If you get a compiler error for zero width of the unused field,
221
   comment it out.  */
222
#define CpuUnused	(CpuMax + 1)
223
 
224
/* We can check if an instruction is available with array instead
225
   of bitfield. */
226
typedef union i386_cpu_flags
227
{
228
  struct
229
    {
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;
6324 serge 265
      unsigned int cpuavx512vl:1;
266
      unsigned int cpuavx512dq:1;
267
      unsigned int cpuavx512bw:1;
5221 serge 268
      unsigned int cpul1om:1;
269
      unsigned int cpuk1om:1;
6324 serge 270
      unsigned int cpuiamcu:1;
5221 serge 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;
6324 serge 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;
5221 serge 314
      unsigned int cpu64:1;
315
      unsigned int cpuno64:1;
6324 serge 316
      unsigned int cpuamd64:1;
317
      unsigned int cpuintel64:1;
5221 serge 318
#ifdef CpuUnused
319
      unsigned int unused:(CpuNumOfBits - CpuUnused);
320
#endif
321
    } bitfield;
322
  unsigned int array[CpuNumOfUints];
323
} i386_cpu_flags;
324
 
325
/* Position of opcode_modifier bits.  */
326
 
327
enum
328
{
329
  /* has direction bit. */
330
  D = 0,
331
  /* set if operands can be words or dwords encoded the canonical way */
332
  W,
333
  /* Skip the current insn and use the next insn in i386-opc.tbl to swap
334
     operand in encoding.  */
335
  S,
336
  /* insn has a modrm byte. */
337
  Modrm,
338
  /* register is in low 3 bits of opcode */
339
  ShortForm,
340
  /* special case for jump insns.  */
341
  Jump,
342
  /* call and jump */
343
  JumpDword,
344
  /* loop and jecxz */
345
  JumpByte,
346
  /* special case for intersegment leaps/calls */
347
  JumpInterSegment,
348
  /* FP insn memory format bit, sized by 0x4 */
349
  FloatMF,
350
  /* src/dest swap for floats. */
351
  FloatR,
352
  /* has float insn direction bit. */
353
  FloatD,
354
  /* needs size prefix if in 32-bit mode */
355
  Size16,
356
  /* needs size prefix if in 16-bit mode */
357
  Size32,
358
  /* needs size prefix if in 64-bit mode */
359
  Size64,
360
  /* check register size.  */
361
  CheckRegSize,
362
  /* instruction ignores operand size prefix and in Intel mode ignores
363
     mnemonic size suffix check.  */
364
  IgnoreSize,
365
  /* default insn size depends on mode */
366
  DefaultSize,
367
  /* b suffix on instruction illegal */
368
  No_bSuf,
369
  /* w suffix on instruction illegal */
370
  No_wSuf,
371
  /* l suffix on instruction illegal */
372
  No_lSuf,
373
  /* s suffix on instruction illegal */
374
  No_sSuf,
375
  /* q suffix on instruction illegal */
376
  No_qSuf,
377
  /* long double suffix on instruction illegal */
378
  No_ldSuf,
379
  /* instruction needs FWAIT */
380
  FWait,
381
  /* quick test for string instructions */
382
  IsString,
383
  /* quick test if branch instruction is MPX supported */
384
  BNDPrefixOk,
385
  /* quick test for lockable instructions */
386
  IsLockable,
387
  /* fake an extra reg operand for clr, imul and special register
388
     processing for some instructions.  */
389
  RegKludge,
390
  /* The first operand must be xmm0 */
391
  FirstXmm0,
392
  /* An implicit xmm0 as the first operand */
393
  Implicit1stXmm0,
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.
398
   */
399
#define HLEPrefixNone		0
400
#define HLEPrefixLock		1
401
#define HLEPrefixAny		2
402
#define HLEPrefixRelease	3
403
  HLEPrefixOk,
404
  /* An instruction on which a "rep" prefix is acceptable.  */
405
  RepPrefixOk,
406
  /* Convert to DWORD */
407
  ToDword,
408
  /* Convert to QWORD */
409
  ToQword,
410
  /* Address prefix changes operand 0 */
411
  AddrPrefixOp0,
412
  /* opcode is a prefix */
413
  IsPrefix,
414
  /* instruction has extension in 8 bit imm */
415
  ImmExt,
416
  /* instruction don't need Rex64 prefix.  */
417
  NoRex64,
418
  /* instruction require Rex64 prefix.  */
419
  Rex64,
420
  /* deprecated fp insn, gets a warning */
421
  Ugh,
422
  /* insn has VEX prefix:
423
	1: 128bit VEX prefix.
424
	2: 256bit VEX prefix.
425
	3: Scalar VEX prefix.
426
   */
427
#define VEX128		1
428
#define VEX256		2
429
#define VEXScalar	3
430
  Vex,
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
437
	by the result.
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
441
	and VEX.NDD2.
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.
446
   */
447
#define VEXXDS	1
448
#define VEXNDD	2
449
#define VEXLWP	3
450
  VexVVVV,
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.
455
   */
456
#define VEXW0	1
457
#define VEXW1	2
458
  VexW,
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.
466
   */
467
#define VEX0F		0
468
#define VEX0F38		1
469
#define VEX0F3A		2
470
#define XOP08		3
471
#define XOP09		4
472
#define XOP0A		5
473
  VexOpcode,
474
  /* number of VEX source operands:
475
     0: <= 2 source operands.
476
     1: 2 XOP source operands.
477
     2: 3 source operands.
478
   */
479
#define XOP2SOURCES	1
480
#define VEX3SOURCES	2
481
  VexSources,
482
  /* instruction has VEX 8 bit imm */
483
  VexImmExt,
484
  /* Instruction with vector SIB byte:
485
	1: 128bit vector register.
486
	2: 256bit vector register.
487
	3: 512bit vector register.
488
   */
489
#define VecSIB128	1
490
#define VecSIB256	2
491
#define VecSIB512	3
492
  VecSIB,
493
  /* SSE to AVX support required */
494
  SSE2AVX,
495
  /* No AVX equivalent */
496
  NoAVX,
497
 
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.
503
   */
504
#define EVEX512                1
505
#define EVEX128                2
506
#define EVEX256                3
507
#define EVEXLIG                4
508
  EVex,
509
 
510
  /* AVX512 masking support:
511
	1: Zeroing-masking.
512
	2: Merging-masking.
513
	3: Both zeroing and merging masking.
514
   */
515
#define ZEROING_MASKING 1
516
#define MERGING_MASKING 2
517
#define BOTH_MASKING    3
518
  Masking,
519
 
520
  /* Input element size of vector insn:
521
	0: 32bit.
522
	1: 64bit.
523
   */
524
  VecESize,
525
 
526
  /* Broadcast factor.
527
	0: No broadcast.
528
	1: 1to16 broadcast.
529
	2: 1to8 broadcast.
530
   */
531
#define NO_BROADCAST	0
532
#define BROADCAST_1TO16	1
533
#define BROADCAST_1TO8	2
6324 serge 534
#define BROADCAST_1TO4	3
535
#define BROADCAST_1TO2	4
5221 serge 536
  Broadcast,
537
 
538
  /* Static rounding control is supported.  */
539
  StaticRounding,
540
 
541
  /* Supress All Exceptions is supported.  */
542
  SAE,
543
 
544
  /* Copressed Disp8*N attribute.  */
545
  Disp8MemShift,
546
 
547
  /* Default mask isn't allowed.  */
548
  NoDefMask,
549
 
550
  /* Compatible with old (<= 2.8.1) versions of gcc  */
551
  OldGcc,
552
  /* AT&T mnemonic.  */
553
  ATTMnemonic,
554
  /* AT&T syntax.  */
555
  ATTSyntax,
556
  /* Intel syntax.  */
557
  IntelSyntax,
558
  /* The last bitfield in i386_opcode_modifier.  */
559
  Opcode_Modifier_Max
560
};
561
 
562
typedef struct i386_opcode_modifier
563
{
564
  unsigned int d:1;
565
  unsigned int w:1;
566
  unsigned int s:1;
567
  unsigned int modrm:1;
568
  unsigned int shortform:1;
569
  unsigned int jump: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;
604
  unsigned int ugh:1;
605
  unsigned int vex:2;
606
  unsigned int vexvvvv:2;
607
  unsigned int vexw: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;
614
  unsigned int evex:3;
615
  unsigned int masking:2;
616
  unsigned int vecesize:1;
617
  unsigned int broadcast:3;
618
  unsigned int staticrounding:1;
619
  unsigned int sae: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;
627
 
628
/* Position of operand_type bits.  */
629
 
630
enum
631
{
632
  /* 8bit register */
633
  Reg8 = 0,
634
  /* 16bit register */
635
  Reg16,
636
  /* 32bit register */
637
  Reg32,
638
  /* 64bit register */
639
  Reg64,
640
  /* Floating pointer stack register */
641
  FloatReg,
642
  /* MMX register */
643
  RegMMX,
644
  /* SSE register */
645
  RegXMM,
646
  /* AVX registers */
647
  RegYMM,
648
  /* AVX512 registers */
649
  RegZMM,
650
  /* Vector Mask registers */
651
  RegMask,
652
  /* Control register */
653
  Control,
654
  /* Debug register */
655
  Debug,
656
  /* Test register */
657
  Test,
658
  /* 2 bit segment register */
659
  SReg2,
660
  /* 3 bit segment register */
661
  SReg3,
662
  /* 1 bit immediate */
663
  Imm1,
664
  /* 8 bit immediate */
665
  Imm8,
666
  /* 8 bit immediate sign extended */
667
  Imm8S,
668
  /* 16 bit immediate */
669
  Imm16,
670
  /* 32 bit immediate */
671
  Imm32,
672
  /* 32 bit immediate sign extended */
673
  Imm32S,
674
  /* 64 bit immediate */
675
  Imm64,
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 */
684
  Disp8,
685
  /* 16 bit displacement */
686
  Disp16,
687
  /* 32 bit displacement */
688
  Disp32,
689
  /* 32 bit signed displacement */
690
  Disp32S,
691
  /* 64 bit displacement */
692
  Disp64,
693
  /* Accumulator %al/%ax/%eax/%rax */
694
  Acc,
695
  /* Floating pointer top stack register %st(0) */
696
  FloatAcc,
697
  /* Register which can be used for base or index in memory operand.  */
698
  BaseIndex,
699
  /* Register to hold in/out port addr = dx */
700
  InOutPortReg,
701
  /* Register to hold shift count = cl */
702
  ShiftCount,
703
  /* Absolute address for jump.  */
704
  JumpAbsolute,
705
  /* String insn operand with fixed es segment */
706
  EsSeg,
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.  */
712
  RegMem,
713
  /* Memory.  */
714
  Mem,
715
  /* BYTE memory. */
716
  Byte,
717
  /* WORD memory. 2 byte */
718
  Word,
719
  /* DWORD memory. 4 byte */
720
  Dword,
721
  /* FWORD memory. 6 byte */
722
  Fword,
723
  /* QWORD memory. 8 byte */
724
  Qword,
725
  /* TBYTE memory. 10 byte */
726
  Tbyte,
727
  /* XMMWORD memory. */
728
  Xmmword,
729
  /* YMMWORD memory. */
730
  Ymmword,
731
  /* ZMMWORD memory.  */
732
  Zmmword,
733
  /* Unspecified memory size.  */
734
  Unspecified,
735
  /* Any memory size.  */
736
  Anysize,
737
 
738
  /* Vector 4 bit immediate.  */
739
  Vec_Imm4,
740
 
741
  /* Bound register.  */
742
  RegBND,
743
 
744
  /* Vector 8bit displacement */
745
  Vec_Disp8,
746
 
747
  /* The last bitfield in i386_operand_type.  */
748
  OTMax
749
};
750
 
751
#define OTNumOfUints \
752
  (OTMax / sizeof (unsigned int) / CHAR_BIT + 1)
753
#define OTNumOfBits \
754
  (OTNumOfUints * sizeof (unsigned int) * CHAR_BIT)
755
 
756
/* If you get a compiler error for zero width of the unused field,
757
   comment it out.  */
758
#define OTUnused		(OTMax + 1)
759
 
760
typedef union i386_operand_type
761
{
762
  struct
763
    {
764
      unsigned int reg8:1;
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;
776
      unsigned int test:1;
777
      unsigned int sreg2:1;
778
      unsigned int sreg3:1;
779
      unsigned int imm1:1;
780
      unsigned int imm8:1;
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;
791
      unsigned int acc: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;
799
      unsigned int mem:1;
800
      unsigned int byte:1;
801
      unsigned int word: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;
814
#ifdef OTUnused
815
      unsigned int unused:(OTNumOfBits - OTUnused);
816
#endif
817
    } bitfield;
818
  unsigned int array[OTNumOfUints];
819
} i386_operand_type;
820
 
821
typedef struct insn_template
822
{
823
  /* instruction name sans width suffix ("mov" for movl insns) */
824
  char *name;
825
 
826
  /* how many operands */
827
  unsigned int operands;
828
 
829
  /* base_opcode is the fundamental opcode byte without optional
830
     prefix(es).  */
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. */
837
 
838
  /* extension_opcode is the 3 bit extension for group  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
842
     Instructions */
843
  unsigned int extension_opcode;
844
#define None 0xffff		/* If no extension_opcode is possible.  */
845
 
846
  /* Opcode length.  */
847
  unsigned char opcode_length;
848
 
849
  /* cpu feature flags */
850
  i386_cpu_flags cpu_flags;
851
 
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;
856
 
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];
862
}
863
insn_template;
864
 
865
extern const insn_template i386_optab[];
866
 
867
/* these are for register name --> number & type hash lookup */
868
typedef struct
869
{
870
  char *reg_name;
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)
886
}
887
reg_entry;
888
 
889
/* Entries in i386_regtab.  */
890
#define REGNAM_AL 1
891
#define REGNAM_AX 25
892
#define REGNAM_EAX 41
893
 
894
extern const reg_entry i386_regtab[];
895
extern const unsigned int i386_regtab_size;
896
 
897
typedef struct
898
{
899
  char *seg_name;
900
  unsigned int seg_prefix;
901
}
902
seg_entry;
903
 
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;