opcodes/i386-opc.h

   1 /* Declarations for Intel 80386 opcode table
   2    Copyright (C) 2007-2018 Free Software Foundation, Inc.
   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 <limits.h>
  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,
 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,
 111   /* Intel L1OM support required */
 112   CpuL1OM,
 113   /* Intel K1OM support required */
 114   CpuK1OM,
 115   /* Intel IAMCU support required */
 116   CpuIAMCU,
 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,
 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   /* Intel AVX-512 IFMA Instructions support required.  */
 192   CpuAVX512IFMA,
 193   /* Intel AVX-512 VBMI Instructions support required.  */
 194   CpuAVX512VBMI,
 195   /* Intel AVX-512 4FMAPS Instructions support required.  */
 196   CpuAVX512_4FMAPS,
 197   /* Intel AVX-512 4VNNIW Instructions support required.  */
 198   CpuAVX512_4VNNIW,
 199   /* Intel AVX-512 VPOPCNTDQ Instructions support required.  */
 200   CpuAVX512_VPOPCNTDQ,
 201   /* Intel AVX-512 VBMI2 Instructions support required.  */
 202   CpuAVX512_VBMI2,
 203   /* Intel AVX-512 VNNI Instructions support required.  */
 204   CpuAVX512_VNNI,
 205   /* Intel AVX-512 BITALG Instructions support required.  */
 206   CpuAVX512_BITALG,
 207   /* mwaitx instruction required */
 208   CpuMWAITX,
 209   /* Clzero instruction required */
 210   CpuCLZERO,
 211   /* OSPKE instruction required */
 212   CpuOSPKE,
 213   /* RDPID instruction required */
 214   CpuRDPID,
 215   /* PTWRITE instruction required */
 216   CpuPTWRITE,
 217   /* CET instructions support required */
 218   CpuIBT,
 219   CpuSHSTK,
 220   /* GFNI instructions required */
 221   CpuGFNI,
 222   /* VAES instructions required */
 223   CpuVAES,
 224   /* VPCLMULQDQ instructions required */
 225   CpuVPCLMULQDQ,
 226   /* WBNOINVD instructions required */
 227   CpuWBNOINVD,
 228   /* PCONFIG instructions required */
 229   CpuPCONFIG,
 230   /* WAITPKG instructions required */
 231   CpuWAITPKG,
 232   /* CLDEMOTE instruction required */
 233   CpuCLDEMOTE,
 234   /* MMX register support required */
 235   CpuRegMMX,
 236   /* XMM register support required */
 237   CpuRegXMM,
 238   /* YMM register support required */
 239   CpuRegYMM,
 240   /* ZMM register support required */
 241   CpuRegZMM,
 242   /* Mask register support required */
 243   CpuRegMask,
 244   /* 64bit support required  */
 245   Cpu64,
 246   /* Not supported in the 64bit mode  */
 247   CpuNo64,
 248   /* The last bitfield in i386_cpu_flags.  */
 249   CpuMax = CpuNo64
 250 };
 251
 252 #define CpuNumOfUints \
 253   (CpuMax / sizeof (unsigned int) / CHAR_BIT + 1)
 254 #define CpuNumOfBits \
 255   (CpuNumOfUints * sizeof (unsigned int) * CHAR_BIT)
 256
 257 /* If you get a compiler error for zero width of the unused field,
 258    comment it out.  */
 259 #define CpuUnused       (CpuMax + 1)
 260
 261 /* We can check if an instruction is available with array instead
 262    of bitfield. */
 263 typedef union i386_cpu_flags
 264 {
 265   struct
 266     {
 267       unsigned int cpui186:1;
 268       unsigned int cpui286:1;
 269       unsigned int cpui386:1;
 270       unsigned int cpui486:1;
 271       unsigned int cpui586:1;
 272       unsigned int cpui686:1;
 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 cpuvrex:1;
 339       unsigned int cpuclflushopt:1;
 340       unsigned int cpuxsaves:1;
 341       unsigned int cpuxsavec:1;
 342       unsigned int cpuprefetchwt1:1;
 343       unsigned int cpuse1:1;
 344       unsigned int cpuclwb:1;
 345       unsigned int cpuavx512ifma:1;
 346       unsigned int cpuavx512vbmi:1;
 347       unsigned int cpuavx512_4fmaps:1;
 348       unsigned int cpuavx512_4vnniw:1;
 349       unsigned int cpuavx512_vpopcntdq:1;
 350       unsigned int cpuavx512_vbmi2:1;
 351       unsigned int cpuavx512_vnni:1;
 352       unsigned int cpuavx512_bitalg: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 cpuregmmx:1;
 368       unsigned int cpuregxmm:1;
 369       unsigned int cpuregymm:1;
 370       unsigned int cpuregzmm:1;
 371       unsigned int cpuregmask:1;
 372       unsigned int cpu64:1;
 373       unsigned int cpuno64:1;
 374 #ifdef CpuUnused
 375       unsigned int unused:(CpuNumOfBits - CpuUnused);
 376 #endif
 377     } bitfield;
 378   unsigned int array[CpuNumOfUints];
 379 } i386_cpu_flags;
 380
 381 /* Position of opcode_modifier bits.  */
 382
 383 enum
 384 {
 385   /* has direction bit. */
 386   D = 0,
 387   /* set if operands can be words or dwords encoded the canonical way */
 388   W,
 389   /* load form instruction. Must be placed before store form.  */
 390   Load,
 391   /* insn has a modrm byte. */
 392   Modrm,
 393   /* register is in low 3 bits of opcode */
 394   ShortForm,
 395   /* special case for jump insns.  */
 396   Jump,
 397   /* call and jump */
 398   JumpDword,
 399   /* loop and jecxz */
 400   JumpByte,
 401   /* special case for intersegment leaps/calls */
 402   JumpInterSegment,
 403   /* FP insn memory format bit, sized by 0x4 */
 404   FloatMF,
 405   /* src/dest swap for floats. */
 406   FloatR,
 407   /* needs size prefix if in 32-bit mode */
 408   Size16,
 409   /* needs size prefix if in 16-bit mode */
 410   Size32,
 411   /* needs size prefix if in 64-bit mode */
 412   Size64,
 413   /* check register size.  */
 414   CheckRegSize,
 415   /* instruction ignores operand size prefix and in Intel mode ignores
 416      mnemonic size suffix check.  */
 417   IgnoreSize,
 418   /* default insn size depends on mode */
 419   DefaultSize,
 420   /* b suffix on instruction illegal */
 421   No_bSuf,
 422   /* w suffix on instruction illegal */
 423   No_wSuf,
 424   /* l suffix on instruction illegal */
 425   No_lSuf,
 426   /* s suffix on instruction illegal */
 427   No_sSuf,
 428   /* q suffix on instruction illegal */
 429   No_qSuf,
 430   /* long double suffix on instruction illegal */
 431   No_ldSuf,
 432   /* instruction needs FWAIT */
 433   FWait,
 434   /* quick test for string instructions */
 435   IsString,
 436   /* quick test if branch instruction is MPX supported */
 437   BNDPrefixOk,
 438   /* quick test if NOTRACK prefix is supported */
 439   NoTrackPrefixOk,
 440   /* quick test for lockable instructions */
 441   IsLockable,
 442   /* fake an extra reg operand for clr, imul and special register
 443      processing for some instructions.  */
 444   RegKludge,
 445   /* An implicit xmm0 as the first operand */
 446   Implicit1stXmm0,
 447   /* The HLE prefix is OK:
 448      1. With a LOCK prefix.
 449      2. With or without a LOCK prefix.
 450      3. With a RELEASE (0xf3) prefix.
 451    */
 452 #define HLEPrefixNone           0
 453 #define HLEPrefixLock           1
 454 #define HLEPrefixAny            2
 455 #define HLEPrefixRelease        3
 456   HLEPrefixOk,
 457   /* An instruction on which a "rep" prefix is acceptable.  */
 458   RepPrefixOk,
 459   /* Convert to DWORD */
 460   ToDword,
 461   /* Convert to QWORD */
 462   ToQword,
 463   /* Address prefix changes operand 0 */
 464   AddrPrefixOp0,
 465   /* opcode is a prefix */
 466   IsPrefix,
 467   /* instruction has extension in 8 bit imm */
 468   ImmExt,
 469   /* instruction don't need Rex64 prefix.  */
 470   NoRex64,
 471   /* instruction require Rex64 prefix.  */
 472   Rex64,
 473   /* deprecated fp insn, gets a warning */
 474   Ugh,
 475   /* insn has VEX prefix:
 476         1: 128bit VEX prefix (or operand dependent).
 477         2: 256bit VEX prefix.
 478         3: Scalar VEX prefix.
 479    */
 480 #define VEX128          1
 481 #define VEX256          2
 482 #define VEXScalar       3
 483   Vex,
 484   /* How to encode VEX.vvvv:
 485      0: VEX.vvvv must be 1111b.
 486      1: VEX.NDS.  Register-only source is encoded in VEX.vvvv where
 487         the content of source registers will be preserved.
 488         VEX.DDS.  The second register operand is encoded in VEX.vvvv
 489         where the content of first source register will be overwritten
 490         by the result.
 491         VEX.NDD2.  The second destination register operand is encoded in
 492         VEX.vvvv for instructions with 2 destination register operands.
 493         For assembler, there are no difference between VEX.NDS, VEX.DDS
 494         and VEX.NDD2.
 495      2. VEX.NDD.  Register destination is encoded in VEX.vvvv for
 496      instructions with 1 destination register operand.
 497      3. VEX.LWP.  Register destination is encoded in VEX.vvvv and one
 498         of the operands can access a memory location.
 499    */
 500 #define VEXXDS  1
 501 #define VEXNDD  2
 502 #define VEXLWP  3
 503   VexVVVV,
 504   /* How the VEX.W bit is used:
 505      0: Set by the REX.W bit.
 506      1: VEX.W0.  Should always be 0.
 507      2: VEX.W1.  Should always be 1.
 508    */
 509 #define VEXW0   1
 510 #define VEXW1   2
 511   VexW,
 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.
 519    */
 520 #define VEX0F           0
 521 #define VEX0F38         1
 522 #define VEX0F3A         2
 523 #define XOP08           3
 524 #define XOP09           4
 525 #define XOP0A           5
 526   VexOpcode,
 527   /* number of VEX source operands:
 528      0: <= 2 source operands.
 529      1: 2 XOP source operands.
 530      2: 3 source operands.
 531    */
 532 #define XOP2SOURCES     1
 533 #define VEX3SOURCES     2
 534   VexSources,
 535   /* Instruction with vector SIB byte:
 536         1: 128bit vector register.
 537         2: 256bit vector register.
 538         3: 512bit vector register.
 539    */
 540 #define VecSIB128       1
 541 #define VecSIB256       2
 542 #define VecSIB512       3
 543   VecSIB,
 544   /* SSE to AVX support required */
 545   SSE2AVX,
 546   /* No AVX equivalent */
 547   NoAVX,
 548
 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.
 555    */
 556 #define EVEX512                1
 557 #define EVEX128                2
 558 #define EVEX256                3
 559 #define EVEXLIG                4
 560 #define EVEXDYN                5
 561   EVex,
 562
 563   /* AVX512 masking support:
 564         1: Zeroing-masking.
 565         2: Merging-masking.
 566         3: Both zeroing and merging masking.
 567    */
 568 #define ZEROING_MASKING 1
 569 #define MERGING_MASKING 2
 570 #define BOTH_MASKING    3
 571   Masking,
 572
 573   Broadcast,
 574
 575   /* Static rounding control is supported.  */
 576   StaticRounding,
 577
 578   /* Supress All Exceptions is supported.  */
 579   SAE,
 580
 581   /* Copressed Disp8*N attribute.  */
 582   Disp8MemShift,
 583
 584   /* Default mask isn't allowed.  */
 585   NoDefMask,
 586
 587   /* The second operand must be a vector register, {x,y,z}mmN, where N is a multiple of 4.
 588      It implicitly denotes the register group of {x,y,z}mmN - {x,y,z}mm(N + 3).
 589    */
 590   ImplicitQuadGroup,
 591
 592   /* Support encoding optimization.  */
 593   Optimize,
 594
 595   /* AT&T mnemonic.  */
 596   ATTMnemonic,
 597   /* AT&T syntax.  */
 598   ATTSyntax,
 599   /* Intel syntax.  */
 600   IntelSyntax,
 601   /* AMD64.  */
 602   AMD64,
 603   /* Intel64.  */
 604   Intel64,
 605   /* The last bitfield in i386_opcode_modifier.  */
 606   Opcode_Modifier_Max
 607 };
 608
 609 typedef struct i386_opcode_modifier
 610 {
 611   unsigned int d:1;
 612   unsigned int w:1;
 613   unsigned int load:1;
 614   unsigned int modrm:1;
 615   unsigned int shortform:1;
 616   unsigned int jump:1;
 617   unsigned int jumpdword:1;
 618   unsigned int jumpbyte:1;
 619   unsigned int jumpintersegment:1;
 620   unsigned int floatmf:1;
 621   unsigned int floatr:1;
 622   unsigned int size16:1;
 623   unsigned int size32:1;
 624   unsigned int size64:1;
 625   unsigned int checkregsize:1;
 626   unsigned int ignoresize:1;
 627   unsigned int defaultsize:1;
 628   unsigned int no_bsuf:1;
 629   unsigned int no_wsuf:1;
 630   unsigned int no_lsuf:1;
 631   unsigned int no_ssuf:1;
 632   unsigned int no_qsuf:1;
 633   unsigned int no_ldsuf:1;
 634   unsigned int fwait:1;
 635   unsigned int isstring:1;
 636   unsigned int bndprefixok:1;
 637   unsigned int notrackprefixok:1;
 638   unsigned int islockable:1;
 639   unsigned int regkludge:1;
 640   unsigned int implicit1stxmm0:1;
 641   unsigned int hleprefixok:2;
 642   unsigned int repprefixok:1;
 643   unsigned int todword:1;
 644   unsigned int toqword:1;
 645   unsigned int addrprefixop0:1;
 646   unsigned int isprefix:1;
 647   unsigned int immext:1;
 648   unsigned int norex64:1;
 649   unsigned int rex64:1;
 650   unsigned int ugh:1;
 651   unsigned int vex:2;
 652   unsigned int vexvvvv:2;
 653   unsigned int vexw:2;
 654   unsigned int vexopcode:3;
 655   unsigned int vexsources:2;
 656   unsigned int vecsib:2;
 657   unsigned int sse2avx:1;
 658   unsigned int noavx:1;
 659   unsigned int evex:3;
 660   unsigned int masking:2;
 661   unsigned int broadcast:1;
 662   unsigned int staticrounding:1;
 663   unsigned int sae:1;
 664   unsigned int disp8memshift:3;
 665   unsigned int nodefmask:1;
 666   unsigned int implicitquadgroup:1;
 667   unsigned int optimize:1;
 668   unsigned int attmnemonic:1;
 669   unsigned int attsyntax:1;
 670   unsigned int intelsyntax:1;
 671   unsigned int amd64:1;
 672   unsigned int intel64:1;
 673 } i386_opcode_modifier;
 674
 675 /* Position of operand_type bits.  */
 676
 677 enum
 678 {
 679   /* Register (qualified by Byte, Word, etc) */
 680   Reg = 0,
 681   /* MMX register */
 682   RegMMX,
 683   /* Vector registers */
 684   RegSIMD,
 685   /* Vector Mask registers */
 686   RegMask,
 687   /* Control register */
 688   Control,
 689   /* Debug register */
 690   Debug,
 691   /* Test register */
 692   Test,
 693   /* 2 bit segment register */
 694   SReg2,
 695   /* 3 bit segment register */
 696   SReg3,
 697   /* 1 bit immediate */
 698   Imm1,
 699   /* 8 bit immediate */
 700   Imm8,
 701   /* 8 bit immediate sign extended */
 702   Imm8S,
 703   /* 16 bit immediate */
 704   Imm16,
 705   /* 32 bit immediate */
 706   Imm32,
 707   /* 32 bit immediate sign extended */
 708   Imm32S,
 709   /* 64 bit immediate */
 710   Imm64,
 711   /* 8bit/16bit/32bit displacements are used in different ways,
 712      depending on the instruction.  For jumps, they specify the
 713      size of the PC relative displacement, for instructions with
 714      memory operand, they specify the size of the offset relative
 715      to the base register, and for instructions with memory offset
 716      such as `mov 1234,%al' they specify the size of the offset
 717      relative to the segment base.  */
 718   /* 8 bit displacement */
 719   Disp8,
 720   /* 16 bit displacement */
 721   Disp16,
 722   /* 32 bit displacement */
 723   Disp32,
 724   /* 32 bit signed displacement */
 725   Disp32S,
 726   /* 64 bit displacement */
 727   Disp64,
 728   /* Accumulator %al/%ax/%eax/%rax/%st(0)/%xmm0 */
 729   Acc,
 730   /* Register which can be used for base or index in memory operand.  */
 731   BaseIndex,
 732   /* Register to hold in/out port addr = dx */
 733   InOutPortReg,
 734   /* Register to hold shift count = cl */
 735   ShiftCount,
 736   /* Absolute address for jump.  */
 737   JumpAbsolute,
 738   /* String insn operand with fixed es segment */
 739   EsSeg,
 740   /* RegMem is for instructions with a modrm byte where the register
 741      destination operand should be encoded in the mod and regmem fields.
 742      Normally, it will be encoded in the reg field. We add a RegMem
 743      flag to the destination register operand to indicate that it should
 744      be encoded in the regmem field.  */
 745   RegMem,
 746   /* Memory.  */
 747   Mem,
 748   /* BYTE memory. */
 749   Byte,
 750   /* WORD memory. 2 byte */
 751   Word,
 752   /* DWORD memory. 4 byte */
 753   Dword,
 754   /* FWORD memory. 6 byte */
 755   Fword,
 756   /* QWORD memory. 8 byte */
 757   Qword,
 758   /* TBYTE memory. 10 byte */
 759   Tbyte,
 760   /* XMMWORD memory. */
 761   Xmmword,
 762   /* YMMWORD memory. */
 763   Ymmword,
 764   /* ZMMWORD memory.  */
 765   Zmmword,
 766   /* Unspecified memory size.  */
 767   Unspecified,
 768   /* Any memory size.  */
 769   Anysize,
 770
 771   /* Vector 4 bit immediate.  */
 772   Vec_Imm4,
 773
 774   /* Bound register.  */
 775   RegBND,
 776
 777   /* The last bitfield in i386_operand_type.  */
 778   OTMax
 779 };
 780
 781 #define OTNumOfUints \
 782   (OTMax / sizeof (unsigned int) / CHAR_BIT + 1)
 783 #define OTNumOfBits \
 784   (OTNumOfUints * sizeof (unsigned int) * CHAR_BIT)
 785
 786 /* If you get a compiler error for zero width of the unused field,
 787    comment it out.  */
 788 #define OTUnused                (OTMax + 1)
 789
 790 typedef union i386_operand_type
 791 {
 792   struct
 793     {
 794       unsigned int reg:1;
 795       unsigned int regmmx:1;
 796       unsigned int regsimd:1;
 797       unsigned int regmask:1;
 798       unsigned int control:1;
 799       unsigned int debug:1;
 800       unsigned int test:1;
 801       unsigned int sreg2:1;
 802       unsigned int sreg3:1;
 803       unsigned int imm1:1;
 804       unsigned int imm8:1;
 805       unsigned int imm8s:1;
 806       unsigned int imm16:1;
 807       unsigned int imm32:1;
 808       unsigned int imm32s:1;
 809       unsigned int imm64:1;
 810       unsigned int disp8:1;
 811       unsigned int disp16:1;
 812       unsigned int disp32:1;
 813       unsigned int disp32s:1;
 814       unsigned int disp64:1;
 815       unsigned int acc:1;
 816       unsigned int baseindex:1;
 817       unsigned int inoutportreg:1;
 818       unsigned int shiftcount:1;
 819       unsigned int jumpabsolute:1;
 820       unsigned int esseg:1;
 821       unsigned int regmem:1;
 822       unsigned int mem:1;
 823       unsigned int byte:1;
 824       unsigned int word:1;
 825       unsigned int dword:1;
 826       unsigned int fword:1;
 827       unsigned int qword:1;
 828       unsigned int tbyte:1;
 829       unsigned int xmmword:1;
 830       unsigned int ymmword:1;
 831       unsigned int zmmword:1;
 832       unsigned int unspecified:1;
 833       unsigned int anysize:1;
 834       unsigned int vec_imm4:1;
 835       unsigned int regbnd:1;
 836 #ifdef OTUnused
 837       unsigned int unused:(OTNumOfBits - OTUnused);
 838 #endif
 839     } bitfield;
 840   unsigned int array[OTNumOfUints];
 841 } i386_operand_type;
 842
 843 typedef struct insn_template
 844 {
 845   /* instruction name sans width suffix ("mov" for movl insns) */
 846   char *name;
 847
 848   /* how many operands */
 849   unsigned int operands;
 850
 851   /* base_opcode is the fundamental opcode byte without optional
 852      prefix(es).  */
 853   unsigned int base_opcode;
 854 #define Opcode_D        0x2 /* Direction bit:
 855                                set if Reg --> Regmem;
 856                                unset if Regmem --> Reg. */
 857 #define Opcode_FloatR   0x8 /* Bit to swap src/dest for float insns. */
 858 #define Opcode_FloatD 0x400 /* Direction bit for float insns. */
 859
 860   /* extension_opcode is the 3 bit extension for group <n> insns.
 861      This field is also used to store the 8-bit opcode suffix for the
 862      AMD 3DNow! instructions.
 863      If this template has no extension opcode (the usual case) use None
 864      Instructions */
 865   unsigned int extension_opcode;
 866 #define None 0xffff             /* If no extension_opcode is possible.  */
 867
 868   /* Opcode length.  */
 869   unsigned char opcode_length;
 870
 871   /* cpu feature flags */
 872   i386_cpu_flags cpu_flags;
 873
 874   /* the bits in opcode_modifier are used to generate the final opcode from
 875      the base_opcode.  These bits also are used to detect alternate forms of
 876      the same instruction */
 877   i386_opcode_modifier opcode_modifier;
 878
 879   /* operand_types[i] describes the type of operand i.  This is made
 880      by OR'ing together all of the possible type masks.  (e.g.
 881      'operand_types[i] = Reg|Imm' specifies that operand i can be
 882      either a register or an immediate operand.  */
 883   i386_operand_type operand_types[MAX_OPERANDS];
 884 }
 885 insn_template;
 886
 887 extern const insn_template i386_optab[];
 888
 889 /* these are for register name --> number & type hash lookup */
 890 typedef struct
 891 {
 892   char *reg_name;
 893   i386_operand_type reg_type;
 894   unsigned char reg_flags;
 895 #define RegRex      0x1  /* Extended register.  */
 896 #define RegRex64    0x2  /* Extended 8 bit register.  */
 897 #define RegVRex     0x4  /* Extended vector register.  */
 898   unsigned char reg_num;
 899 #define RegRip  ((unsigned char ) ~0)
 900 #define RegEip  (RegRip - 1)
 901 /* EIZ and RIZ are fake index registers.  */
 902 #define RegEiz  (RegEip - 1)
 903 #define RegRiz  (RegEiz - 1)
 904 /* FLAT is a fake segment register (Intel mode).  */
 905 #define RegFlat     ((unsigned char) ~0)
 906   signed char dw2_regnum[2];
 907 #define Dw2Inval (-1)
 908 }
 909 reg_entry;
 910
 911 /* Entries in i386_regtab.  */
 912 #define REGNAM_AL 1
 913 #define REGNAM_AX 25
 914 #define REGNAM_EAX 41
 915
 916 extern const reg_entry i386_regtab[];
 917 extern const unsigned int i386_regtab_size;
 918
 919 typedef struct
 920 {
 921   char *seg_name;
 922   unsigned int seg_prefix;
 923 }
 924 seg_entry;
 925
 926 extern const seg_entry cs;
 927 extern const seg_entry ds;
 928 extern const seg_entry ss;
 929 extern const seg_entry es;
 930 extern const seg_entry fs;
 931 extern const seg_entry gs;