i386-opc.h revision 1.6
1/* Declarations for Intel 80386 opcode table 2 Copyright (C) 2007-2016 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 32enum 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 /* 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, 203 /* RDPID instruction required */ 204 CpuRDPID, 205 /* MMX register support required */ 206 CpuRegMMX, 207 /* XMM register support required */ 208 CpuRegXMM, 209 /* YMM register support required */ 210 CpuRegYMM, 211 /* ZMM register support required */ 212 CpuRegZMM, 213 /* Mask register support required */ 214 CpuRegMask, 215 /* 64bit support required */ 216 Cpu64, 217 /* Not supported in the 64bit mode */ 218 CpuNo64, 219 /* The last bitfield in i386_cpu_flags. */ 220 CpuMax = CpuNo64 221}; 222 223#define CpuNumOfUints \ 224 (CpuMax / sizeof (unsigned int) / CHAR_BIT + 1) 225#define CpuNumOfBits \ 226 (CpuNumOfUints * sizeof (unsigned int) * CHAR_BIT) 227 228/* If you get a compiler error for zero width of the unused field, 229 comment it out. */ 230#define CpuUnused (CpuMax + 1) 231 232/* We can check if an instruction is available with array instead 233 of bitfield. */ 234typedef union i386_cpu_flags 235{ 236 struct 237 { 238 unsigned int cpui186:1; 239 unsigned int cpui286:1; 240 unsigned int cpui386:1; 241 unsigned int cpui486:1; 242 unsigned int cpui586:1; 243 unsigned int cpui686:1; 244 unsigned int cpuclflush:1; 245 unsigned int cpunop:1; 246 unsigned int cpusyscall:1; 247 unsigned int cpu8087:1; 248 unsigned int cpu287:1; 249 unsigned int cpu387:1; 250 unsigned int cpu687:1; 251 unsigned int cpufisttp:1; 252 unsigned int cpummx:1; 253 unsigned int cpusse:1; 254 unsigned int cpusse2:1; 255 unsigned int cpua3dnow:1; 256 unsigned int cpua3dnowa:1; 257 unsigned int cpusse3:1; 258 unsigned int cpupadlock:1; 259 unsigned int cpusvme:1; 260 unsigned int cpuvmx:1; 261 unsigned int cpusmx:1; 262 unsigned int cpussse3:1; 263 unsigned int cpusse4a:1; 264 unsigned int cpuabm:1; 265 unsigned int cpusse4_1:1; 266 unsigned int cpusse4_2:1; 267 unsigned int cpuavx:1; 268 unsigned int cpuavx2:1; 269 unsigned int cpuavx512f:1; 270 unsigned int cpuavx512cd:1; 271 unsigned int cpuavx512er:1; 272 unsigned int cpuavx512pf:1; 273 unsigned int cpuavx512vl:1; 274 unsigned int cpuavx512dq:1; 275 unsigned int cpuavx512bw:1; 276 unsigned int cpul1om:1; 277 unsigned int cpuk1om:1; 278 unsigned int cpuiamcu:1; 279 unsigned int cpuxsave:1; 280 unsigned int cpuxsaveopt:1; 281 unsigned int cpuaes:1; 282 unsigned int cpupclmul:1; 283 unsigned int cpufma:1; 284 unsigned int cpufma4:1; 285 unsigned int cpuxop:1; 286 unsigned int cpulwp:1; 287 unsigned int cpubmi:1; 288 unsigned int cputbm:1; 289 unsigned int cpumovbe:1; 290 unsigned int cpucx16:1; 291 unsigned int cpuept:1; 292 unsigned int cpurdtscp:1; 293 unsigned int cpufsgsbase:1; 294 unsigned int cpurdrnd:1; 295 unsigned int cpuf16c:1; 296 unsigned int cpubmi2:1; 297 unsigned int cpulzcnt:1; 298 unsigned int cpuhle:1; 299 unsigned int cpurtm:1; 300 unsigned int cpuinvpcid:1; 301 unsigned int cpuvmfunc:1; 302 unsigned int cpumpx:1; 303 unsigned int cpulm:1; 304 unsigned int cpurdseed:1; 305 unsigned int cpuadx:1; 306 unsigned int cpuprfchw:1; 307 unsigned int cpusmap:1; 308 unsigned int cpusha:1; 309 unsigned int cpuvrex:1; 310 unsigned int cpuclflushopt:1; 311 unsigned int cpuxsaves:1; 312 unsigned int cpuxsavec:1; 313 unsigned int cpuprefetchwt1:1; 314 unsigned int cpuse1:1; 315 unsigned int cpuclwb:1; 316 unsigned int cpupcommit:1; 317 unsigned int cpuavx512ifma:1; 318 unsigned int cpuavx512vbmi:1; 319 unsigned int cpumwaitx:1; 320 unsigned int cpuclzero:1; 321 unsigned int cpuospke:1; 322 unsigned int cpurdpid:1; 323 unsigned int cpuregmmx:1; 324 unsigned int cpuregxmm:1; 325 unsigned int cpuregymm:1; 326 unsigned int cpuregzmm:1; 327 unsigned int cpuregmask:1; 328 unsigned int cpu64:1; 329 unsigned int cpuno64:1; 330#ifdef CpuUnused 331 unsigned int unused:(CpuNumOfBits - CpuUnused); 332#endif 333 } bitfield; 334 unsigned int array[CpuNumOfUints]; 335} i386_cpu_flags; 336 337/* Position of opcode_modifier bits. */ 338 339enum 340{ 341 /* has direction bit. */ 342 D = 0, 343 /* set if operands can be words or dwords encoded the canonical way */ 344 W, 345 /* Skip the current insn and use the next insn in i386-opc.tbl to swap 346 operand in encoding. */ 347 S, 348 /* insn has a modrm byte. */ 349 Modrm, 350 /* register is in low 3 bits of opcode */ 351 ShortForm, 352 /* special case for jump insns. */ 353 Jump, 354 /* call and jump */ 355 JumpDword, 356 /* loop and jecxz */ 357 JumpByte, 358 /* special case for intersegment leaps/calls */ 359 JumpInterSegment, 360 /* FP insn memory format bit, sized by 0x4 */ 361 FloatMF, 362 /* src/dest swap for floats. */ 363 FloatR, 364 /* has float insn direction bit. */ 365 FloatD, 366 /* needs size prefix if in 32-bit mode */ 367 Size16, 368 /* needs size prefix if in 16-bit mode */ 369 Size32, 370 /* needs size prefix if in 64-bit mode */ 371 Size64, 372 /* check register size. */ 373 CheckRegSize, 374 /* instruction ignores operand size prefix and in Intel mode ignores 375 mnemonic size suffix check. */ 376 IgnoreSize, 377 /* default insn size depends on mode */ 378 DefaultSize, 379 /* b suffix on instruction illegal */ 380 No_bSuf, 381 /* w suffix on instruction illegal */ 382 No_wSuf, 383 /* l suffix on instruction illegal */ 384 No_lSuf, 385 /* s suffix on instruction illegal */ 386 No_sSuf, 387 /* q suffix on instruction illegal */ 388 No_qSuf, 389 /* long double suffix on instruction illegal */ 390 No_ldSuf, 391 /* instruction needs FWAIT */ 392 FWait, 393 /* quick test for string instructions */ 394 IsString, 395 /* quick test if branch instruction is MPX supported */ 396 BNDPrefixOk, 397 /* quick test for lockable instructions */ 398 IsLockable, 399 /* fake an extra reg operand for clr, imul and special register 400 processing for some instructions. */ 401 RegKludge, 402 /* The first operand must be xmm0 */ 403 FirstXmm0, 404 /* An implicit xmm0 as the first operand */ 405 Implicit1stXmm0, 406 /* The HLE prefix is OK: 407 1. With a LOCK prefix. 408 2. With or without a LOCK prefix. 409 3. With a RELEASE (0xf3) prefix. 410 */ 411#define HLEPrefixNone 0 412#define HLEPrefixLock 1 413#define HLEPrefixAny 2 414#define HLEPrefixRelease 3 415 HLEPrefixOk, 416 /* An instruction on which a "rep" prefix is acceptable. */ 417 RepPrefixOk, 418 /* Convert to DWORD */ 419 ToDword, 420 /* Convert to QWORD */ 421 ToQword, 422 /* Address prefix changes operand 0 */ 423 AddrPrefixOp0, 424 /* opcode is a prefix */ 425 IsPrefix, 426 /* instruction has extension in 8 bit imm */ 427 ImmExt, 428 /* instruction don't need Rex64 prefix. */ 429 NoRex64, 430 /* instruction require Rex64 prefix. */ 431 Rex64, 432 /* deprecated fp insn, gets a warning */ 433 Ugh, 434 /* insn has VEX prefix: 435 1: 128bit VEX prefix. 436 2: 256bit VEX prefix. 437 3: Scalar VEX prefix. 438 */ 439#define VEX128 1 440#define VEX256 2 441#define VEXScalar 3 442 Vex, 443 /* How to encode VEX.vvvv: 444 0: VEX.vvvv must be 1111b. 445 1: VEX.NDS. Register-only source is encoded in VEX.vvvv where 446 the content of source registers will be preserved. 447 VEX.DDS. The second register operand is encoded in VEX.vvvv 448 where the content of first source register will be overwritten 449 by the result. 450 VEX.NDD2. The second destination register operand is encoded in 451 VEX.vvvv for instructions with 2 destination register operands. 452 For assembler, there are no difference between VEX.NDS, VEX.DDS 453 and VEX.NDD2. 454 2. VEX.NDD. Register destination is encoded in VEX.vvvv for 455 instructions with 1 destination register operand. 456 3. VEX.LWP. Register destination is encoded in VEX.vvvv and one 457 of the operands can access a memory location. 458 */ 459#define VEXXDS 1 460#define VEXNDD 2 461#define VEXLWP 3 462 VexVVVV, 463 /* How the VEX.W bit is used: 464 0: Set by the REX.W bit. 465 1: VEX.W0. Should always be 0. 466 2: VEX.W1. Should always be 1. 467 */ 468#define VEXW0 1 469#define VEXW1 2 470 VexW, 471 /* VEX opcode prefix: 472 0: VEX 0x0F opcode prefix. 473 1: VEX 0x0F38 opcode prefix. 474 2: VEX 0x0F3A opcode prefix 475 3: XOP 0x08 opcode prefix. 476 4: XOP 0x09 opcode prefix 477 5: XOP 0x0A opcode prefix. 478 */ 479#define VEX0F 0 480#define VEX0F38 1 481#define VEX0F3A 2 482#define XOP08 3 483#define XOP09 4 484#define XOP0A 5 485 VexOpcode, 486 /* number of VEX source operands: 487 0: <= 2 source operands. 488 1: 2 XOP source operands. 489 2: 3 source operands. 490 */ 491#define XOP2SOURCES 1 492#define VEX3SOURCES 2 493 VexSources, 494 /* instruction has VEX 8 bit imm */ 495 VexImmExt, 496 /* Instruction with vector SIB byte: 497 1: 128bit vector register. 498 2: 256bit vector register. 499 3: 512bit vector register. 500 */ 501#define VecSIB128 1 502#define VecSIB256 2 503#define VecSIB512 3 504 VecSIB, 505 /* SSE to AVX support required */ 506 SSE2AVX, 507 /* No AVX equivalent */ 508 NoAVX, 509 510 /* insn has EVEX prefix: 511 1: 512bit EVEX prefix. 512 2: 128bit EVEX prefix. 513 3: 256bit EVEX prefix. 514 4: Length-ignored (LIG) EVEX prefix. 515 */ 516#define EVEX512 1 517#define EVEX128 2 518#define EVEX256 3 519#define EVEXLIG 4 520 EVex, 521 522 /* AVX512 masking support: 523 1: Zeroing-masking. 524 2: Merging-masking. 525 3: Both zeroing and merging masking. 526 */ 527#define ZEROING_MASKING 1 528#define MERGING_MASKING 2 529#define BOTH_MASKING 3 530 Masking, 531 532 /* Input element size of vector insn: 533 0: 32bit. 534 1: 64bit. 535 */ 536 VecESize, 537 538 /* Broadcast factor. 539 0: No broadcast. 540 1: 1to16 broadcast. 541 2: 1to8 broadcast. 542 */ 543#define NO_BROADCAST 0 544#define BROADCAST_1TO16 1 545#define BROADCAST_1TO8 2 546#define BROADCAST_1TO4 3 547#define BROADCAST_1TO2 4 548 Broadcast, 549 550 /* Static rounding control is supported. */ 551 StaticRounding, 552 553 /* Supress All Exceptions is supported. */ 554 SAE, 555 556 /* Copressed Disp8*N attribute. */ 557 Disp8MemShift, 558 559 /* Default mask isn't allowed. */ 560 NoDefMask, 561 562 /* Compatible with old (<= 2.8.1) versions of gcc */ 563 OldGcc, 564 /* AT&T mnemonic. */ 565 ATTMnemonic, 566 /* AT&T syntax. */ 567 ATTSyntax, 568 /* Intel syntax. */ 569 IntelSyntax, 570 /* AMD64. */ 571 AMD64, 572 /* Intel64. */ 573 Intel64, 574 /* The last bitfield in i386_opcode_modifier. */ 575 Opcode_Modifier_Max 576}; 577 578typedef struct i386_opcode_modifier 579{ 580 unsigned int d:1; 581 unsigned int w:1; 582 unsigned int s:1; 583 unsigned int modrm:1; 584 unsigned int shortform:1; 585 unsigned int jump:1; 586 unsigned int jumpdword:1; 587 unsigned int jumpbyte:1; 588 unsigned int jumpintersegment:1; 589 unsigned int floatmf:1; 590 unsigned int floatr:1; 591 unsigned int floatd:1; 592 unsigned int size16:1; 593 unsigned int size32:1; 594 unsigned int size64:1; 595 unsigned int checkregsize:1; 596 unsigned int ignoresize:1; 597 unsigned int defaultsize:1; 598 unsigned int no_bsuf:1; 599 unsigned int no_wsuf:1; 600 unsigned int no_lsuf:1; 601 unsigned int no_ssuf:1; 602 unsigned int no_qsuf:1; 603 unsigned int no_ldsuf:1; 604 unsigned int fwait:1; 605 unsigned int isstring:1; 606 unsigned int bndprefixok:1; 607 unsigned int islockable:1; 608 unsigned int regkludge:1; 609 unsigned int firstxmm0:1; 610 unsigned int implicit1stxmm0:1; 611 unsigned int hleprefixok:2; 612 unsigned int repprefixok:1; 613 unsigned int todword:1; 614 unsigned int toqword:1; 615 unsigned int addrprefixop0:1; 616 unsigned int isprefix:1; 617 unsigned int immext:1; 618 unsigned int norex64:1; 619 unsigned int rex64:1; 620 unsigned int ugh:1; 621 unsigned int vex:2; 622 unsigned int vexvvvv:2; 623 unsigned int vexw:2; 624 unsigned int vexopcode:3; 625 unsigned int vexsources:2; 626 unsigned int veximmext:1; 627 unsigned int vecsib:2; 628 unsigned int sse2avx:1; 629 unsigned int noavx:1; 630 unsigned int evex:3; 631 unsigned int masking:2; 632 unsigned int vecesize:1; 633 unsigned int broadcast:3; 634 unsigned int staticrounding:1; 635 unsigned int sae:1; 636 unsigned int disp8memshift:3; 637 unsigned int nodefmask:1; 638 unsigned int oldgcc:1; 639 unsigned int attmnemonic:1; 640 unsigned int attsyntax:1; 641 unsigned int intelsyntax:1; 642 unsigned int amd64:1; 643 unsigned int intel64:1; 644} i386_opcode_modifier; 645 646/* Position of operand_type bits. */ 647 648enum 649{ 650 /* 8bit register */ 651 Reg8 = 0, 652 /* 16bit register */ 653 Reg16, 654 /* 32bit register */ 655 Reg32, 656 /* 64bit register */ 657 Reg64, 658 /* Floating pointer stack register */ 659 FloatReg, 660 /* MMX register */ 661 RegMMX, 662 /* SSE register */ 663 RegXMM, 664 /* AVX registers */ 665 RegYMM, 666 /* AVX512 registers */ 667 RegZMM, 668 /* Vector Mask registers */ 669 RegMask, 670 /* Control register */ 671 Control, 672 /* Debug register */ 673 Debug, 674 /* Test register */ 675 Test, 676 /* 2 bit segment register */ 677 SReg2, 678 /* 3 bit segment register */ 679 SReg3, 680 /* 1 bit immediate */ 681 Imm1, 682 /* 8 bit immediate */ 683 Imm8, 684 /* 8 bit immediate sign extended */ 685 Imm8S, 686 /* 16 bit immediate */ 687 Imm16, 688 /* 32 bit immediate */ 689 Imm32, 690 /* 32 bit immediate sign extended */ 691 Imm32S, 692 /* 64 bit immediate */ 693 Imm64, 694 /* 8bit/16bit/32bit displacements are used in different ways, 695 depending on the instruction. For jumps, they specify the 696 size of the PC relative displacement, for instructions with 697 memory operand, they specify the size of the offset relative 698 to the base register, and for instructions with memory offset 699 such as `mov 1234,%al' they specify the size of the offset 700 relative to the segment base. */ 701 /* 8 bit displacement */ 702 Disp8, 703 /* 16 bit displacement */ 704 Disp16, 705 /* 32 bit displacement */ 706 Disp32, 707 /* 32 bit signed displacement */ 708 Disp32S, 709 /* 64 bit displacement */ 710 Disp64, 711 /* Accumulator %al/%ax/%eax/%rax */ 712 Acc, 713 /* Floating pointer top stack register %st(0) */ 714 FloatAcc, 715 /* Register which can be used for base or index in memory operand. */ 716 BaseIndex, 717 /* Register to hold in/out port addr = dx */ 718 InOutPortReg, 719 /* Register to hold shift count = cl */ 720 ShiftCount, 721 /* Absolute address for jump. */ 722 JumpAbsolute, 723 /* String insn operand with fixed es segment */ 724 EsSeg, 725 /* RegMem is for instructions with a modrm byte where the register 726 destination operand should be encoded in the mod and regmem fields. 727 Normally, it will be encoded in the reg field. We add a RegMem 728 flag to the destination register operand to indicate that it should 729 be encoded in the regmem field. */ 730 RegMem, 731 /* Memory. */ 732 Mem, 733 /* BYTE memory. */ 734 Byte, 735 /* WORD memory. 2 byte */ 736 Word, 737 /* DWORD memory. 4 byte */ 738 Dword, 739 /* FWORD memory. 6 byte */ 740 Fword, 741 /* QWORD memory. 8 byte */ 742 Qword, 743 /* TBYTE memory. 10 byte */ 744 Tbyte, 745 /* XMMWORD memory. */ 746 Xmmword, 747 /* YMMWORD memory. */ 748 Ymmword, 749 /* ZMMWORD memory. */ 750 Zmmword, 751 /* Unspecified memory size. */ 752 Unspecified, 753 /* Any memory size. */ 754 Anysize, 755 756 /* Vector 4 bit immediate. */ 757 Vec_Imm4, 758 759 /* Bound register. */ 760 RegBND, 761 762 /* Vector 8bit displacement */ 763 Vec_Disp8, 764 765 /* The last bitfield in i386_operand_type. */ 766 OTMax 767}; 768 769#define OTNumOfUints \ 770 (OTMax / sizeof (unsigned int) / CHAR_BIT + 1) 771#define OTNumOfBits \ 772 (OTNumOfUints * sizeof (unsigned int) * CHAR_BIT) 773 774/* If you get a compiler error for zero width of the unused field, 775 comment it out. */ 776#define OTUnused (OTMax + 1) 777 778typedef union i386_operand_type 779{ 780 struct 781 { 782 unsigned int reg8:1; 783 unsigned int reg16:1; 784 unsigned int reg32:1; 785 unsigned int reg64:1; 786 unsigned int floatreg:1; 787 unsigned int regmmx:1; 788 unsigned int regxmm:1; 789 unsigned int regymm:1; 790 unsigned int regzmm:1; 791 unsigned int regmask:1; 792 unsigned int control:1; 793 unsigned int debug:1; 794 unsigned int test:1; 795 unsigned int sreg2:1; 796 unsigned int sreg3:1; 797 unsigned int imm1:1; 798 unsigned int imm8:1; 799 unsigned int imm8s:1; 800 unsigned int imm16:1; 801 unsigned int imm32:1; 802 unsigned int imm32s:1; 803 unsigned int imm64:1; 804 unsigned int disp8:1; 805 unsigned int disp16:1; 806 unsigned int disp32:1; 807 unsigned int disp32s:1; 808 unsigned int disp64:1; 809 unsigned int acc:1; 810 unsigned int floatacc:1; 811 unsigned int baseindex:1; 812 unsigned int inoutportreg:1; 813 unsigned int shiftcount:1; 814 unsigned int jumpabsolute:1; 815 unsigned int esseg:1; 816 unsigned int regmem:1; 817 unsigned int mem:1; 818 unsigned int byte:1; 819 unsigned int word:1; 820 unsigned int dword:1; 821 unsigned int fword:1; 822 unsigned int qword:1; 823 unsigned int tbyte:1; 824 unsigned int xmmword:1; 825 unsigned int ymmword:1; 826 unsigned int zmmword:1; 827 unsigned int unspecified:1; 828 unsigned int anysize:1; 829 unsigned int vec_imm4:1; 830 unsigned int regbnd:1; 831 unsigned int vec_disp8:1; 832#ifdef OTUnused 833 unsigned int unused:(OTNumOfBits - OTUnused); 834#endif 835 } bitfield; 836 unsigned int array[OTNumOfUints]; 837} i386_operand_type; 838 839typedef struct insn_template 840{ 841 /* instruction name sans width suffix ("mov" for movl insns) */ 842 char *name; 843 844 /* how many operands */ 845 unsigned int operands; 846 847 /* base_opcode is the fundamental opcode byte without optional 848 prefix(es). */ 849 unsigned int base_opcode; 850#define Opcode_D 0x2 /* Direction bit: 851 set if Reg --> Regmem; 852 unset if Regmem --> Reg. */ 853#define Opcode_FloatR 0x8 /* Bit to swap src/dest for float insns. */ 854#define Opcode_FloatD 0x400 /* Direction bit for float insns. */ 855 856 /* extension_opcode is the 3 bit extension for group <n> insns. 857 This field is also used to store the 8-bit opcode suffix for the 858 AMD 3DNow! instructions. 859 If this template has no extension opcode (the usual case) use None 860 Instructions */ 861 unsigned int extension_opcode; 862#define None 0xffff /* If no extension_opcode is possible. */ 863 864 /* Opcode length. */ 865 unsigned char opcode_length; 866 867 /* cpu feature flags */ 868 i386_cpu_flags cpu_flags; 869 870 /* the bits in opcode_modifier are used to generate the final opcode from 871 the base_opcode. These bits also are used to detect alternate forms of 872 the same instruction */ 873 i386_opcode_modifier opcode_modifier; 874 875 /* operand_types[i] describes the type of operand i. This is made 876 by OR'ing together all of the possible type masks. (e.g. 877 'operand_types[i] = Reg|Imm' specifies that operand i can be 878 either a register or an immediate operand. */ 879 i386_operand_type operand_types[MAX_OPERANDS]; 880} 881insn_template; 882 883extern const insn_template i386_optab[]; 884 885/* these are for register name --> number & type hash lookup */ 886typedef struct 887{ 888 char *reg_name; 889 i386_operand_type reg_type; 890 unsigned char reg_flags; 891#define RegRex 0x1 /* Extended register. */ 892#define RegRex64 0x2 /* Extended 8 bit register. */ 893#define RegVRex 0x4 /* Extended vector register. */ 894 unsigned char reg_num; 895#define RegRip ((unsigned char ) ~0) 896#define RegEip (RegRip - 1) 897/* EIZ and RIZ are fake index registers. */ 898#define RegEiz (RegEip - 1) 899#define RegRiz (RegEiz - 1) 900/* FLAT is a fake segment register (Intel mode). */ 901#define RegFlat ((unsigned char) ~0) 902 signed char dw2_regnum[2]; 903#define Dw2Inval (-1) 904} 905reg_entry; 906 907/* Entries in i386_regtab. */ 908#define REGNAM_AL 1 909#define REGNAM_AX 25 910#define REGNAM_EAX 41 911 912extern const reg_entry i386_regtab[]; 913extern const unsigned int i386_regtab_size; 914 915typedef struct 916{ 917 char *seg_name; 918 unsigned int seg_prefix; 919} 920seg_entry; 921 922extern const seg_entry cs; 923extern const seg_entry ds; 924extern const seg_entry ss; 925extern const seg_entry es; 926extern const seg_entry fs; 927extern const seg_entry gs; 928