two_byte_opcodes.isa revision 8556:2afd82e84d95
1// Copyright (c) 2007-2008 The Hewlett-Packard Development Company 2// All rights reserved. 3// 4// The license below extends only to copyright in the software and shall 5// not be construed as granting a license to any other intellectual 6// property including but not limited to intellectual property relating 7// to a hardware implementation of the functionality of the software 8// licensed hereunder. You may use the software subject to the license 9// terms below provided that you ensure that this notice is replicated 10// unmodified and in its entirety in all distributions of the software, 11// modified or unmodified, in source code or in binary form. 12// 13// Copyright (c) 2008 The Regents of The University of Michigan 14// All rights reserved. 15// 16// Redistribution and use in source and binary forms, with or without 17// modification, are permitted provided that the following conditions are 18// met: redistributions of source code must retain the above copyright 19// notice, this list of conditions and the following disclaimer; 20// redistributions in binary form must reproduce the above copyright 21// notice, this list of conditions and the following disclaimer in the 22// documentation and/or other materials provided with the distribution; 23// neither the name of the copyright holders nor the names of its 24// contributors may be used to endorse or promote products derived from 25// this software without specific prior written permission. 26// 27// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 30// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 32// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 33// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 37// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38// 39// Authors: Gabe Black 40 41//////////////////////////////////////////////////////////////////// 42// 43// Decode the two byte opcodes 44// 450x2: decode OPCODE_PREFIXA { 46 0x0F: decode OPCODE_OP_TOP5 { 47 format WarnUnimpl { 48 0x00: decode OPCODE_OP_BOTTOM3 { 49 //0x00: group6(); 50 0x00: decode MODRM_REG { 51 0x0: sldt_Mw_or_Rv(); 52 0x1: str_Mw_or_Rv(); 53 0x2: Inst::LLDT(Ew); 54 0x3: Inst::LTR(Ew); 55 0x4: verr_Mw_or_Rv(); 56 0x5: verw_Mw_or_Rv(); 57 //0x6: jmpe_Ev(); // IA-64 58 default: Inst::UD2(); 59 } 60 //0x01: group7(); // Ugly, ugly, ugly... 61 0x01: decode MODRM_REG { 62 0x0: decode MODRM_MOD { 63 0x3: decode MODRM_RM { 64 0x1: vmcall(); 65 0x2: vmlaunch(); 66 0x3: vmresume(); 67 0x4: vmxoff(); 68 default: Inst::UD2(); 69 } 70 default: sgdt_Ms(); 71 } 72 0x1: decode MODRM_MOD { 73 0x3: decode MODRM_RM { 74 0x0: monitor(); 75 0x1: mwait(); 76 default: Inst::UD2(); 77 } 78 default: sidt_Ms(); 79 } 80 0x2: decode MODRM_MOD { 81 0x3: decode MODRM_RM { 82 0x0: xgetbv(); 83 0x1: xsetbv(); 84 } 85 default: decode MODE_SUBMODE { 86 0x0: Inst::LGDT(M); 87 default: decode OPSIZE { 88 // 16 bit operand sizes are special, but only 89 // in legacy and compatability modes. 90 0x2: Inst::LGDT_16(M); 91 default: Inst::LGDT(M); 92 } 93 } 94 } 95 0x3: decode MODRM_MOD { 96 0x3: decode MODRM_RM { 97 0x0: vmrun(); 98 0x1: vmmcall(); 99 0x2: vmload(); 100 0x3: vmsave(); 101 0x4: stgi(); 102 0x5: clgi(); 103 0x6: skinit(); 104 0x7: invlpga(); 105 } 106 default: decode MODE_SUBMODE { 107 0x0: Inst::LIDT(M); 108 default: decode OPSIZE { 109 // 16 bit operand sizes are special, but only 110 // in legacy and compatability modes. 111 0x2: Inst::LIDT_16(M); 112 default: Inst::LIDT(M); 113 } 114 } 115 } 116 0x4: decode MODRM_MOD { 117 0x3: Inst::SMSW(Rv); 118 default: Inst::SMSW(Mw); 119 } 120 0x6: Inst::LMSW(Ew); 121 0x7: decode MODRM_MOD { 122 0x3: decode MODRM_RM { 123 0x0: Inst::SWAPGS(); 124 0x1: rdtscp(); 125 default: Inst::UD2(); 126 } 127 default: Inst::INVLPG(M); 128 } 129 } 130 0x02: lar_Gv_Ew(); 131 0x03: lsl_Gv_Ew(); 132 // sandpile.org doesn't seem to know what this is...? We'll 133 // use it for pseudo instructions. We've got 16 bits of space 134 // to play with so there can be quite a few pseudo 135 // instructions. 136 //0x04: loadall_or_reset_or_hang(); 137 0x4: decode IMMEDIATE { 138 format BasicOperate { 139 0x00: m5arm({{ 140 PseudoInst::arm(xc->tcBase()); 141 }}, IsNonSpeculative); 142 0x01: m5quiesce({{ 143 PseudoInst::quiesce(xc->tcBase()); 144 }}, IsNonSpeculative); 145 0x02: m5quiesceNs({{ 146 PseudoInst::quiesceNs(xc->tcBase(), Rdi); 147 }}, IsNonSpeculative); 148 0x03: m5quiesceCycle({{ 149 PseudoInst::quiesceCycles(xc->tcBase(), Rdi); 150 }}, IsNonSpeculative); 151 0x04: m5quiesceTime({{ 152 Rax = PseudoInst::quiesceTime(xc->tcBase()); 153 }}, IsNonSpeculative); 154 0x07: m5rpns({{ 155 Rax = PseudoInst::rpns(xc->tcBase()); 156 }}, IsNonSpeculative); 157 0x21: m5exit({{ 158 PseudoInst::m5exit(xc->tcBase(), Rdi); 159 }}, IsNonSpeculative); 160 0x30: m5initparam({{ 161 Rax = PseudoInst::initParam(xc->tcBase()); 162 }}, IsNonSpeculative); 163 0x31: m5loadsymbol({{ 164 PseudoInst::loadsymbol(xc->tcBase()); 165 }}, IsNonSpeculative); 166 0x40: m5resetstats({{ 167 PseudoInst::resetstats(xc->tcBase(), Rdi, Rsi); 168 }}, IsNonSpeculative); 169 0x41: m5dumpstats({{ 170 PseudoInst::dumpstats(xc->tcBase(), Rdi, Rsi); 171 }}, IsNonSpeculative); 172 0x42: m5dumpresetstats({{ 173 PseudoInst::dumpresetstats(xc->tcBase(), Rdi, Rsi); 174 }}, IsNonSpeculative); 175 0x43: m5checkpoint({{ 176 PseudoInst::m5checkpoint(xc->tcBase(), Rdi, Rsi); 177 }}, IsNonSpeculative); 178 0x50: m5readfile({{ 179 Rax = PseudoInst::readfile( 180 xc->tcBase(), Rdi, Rsi, Rdx); 181 }}, IsNonSpeculative); 182 0x51: m5debugbreak({{ 183 PseudoInst::debugbreak(xc->tcBase()); 184 }}, IsNonSpeculative); 185 0x52: m5switchcpu({{ 186 PseudoInst::switchcpu(xc->tcBase()); 187 }}, IsNonSpeculative); 188 0x53: m5addsymbol({{ 189 PseudoInst::addsymbol(xc->tcBase(), Rdi, Rsi); 190 }}, IsNonSpeculative); 191 0x54: m5panic({{ 192 panic("M5 panic instruction called at pc = %#x.\n", 193 RIP); 194 }}, IsNonSpeculative); 195 0x55: m5reserved1({{ 196 warn("M5 reserved opcode 1 ignored.\n"); 197 }}, IsNonSpeculative); 198 0x56: m5reserved2({{ 199 warn("M5 reserved opcode 2 ignored.\n"); 200 }}, IsNonSpeculative); 201 0x57: m5reserved3({{ 202 warn("M5 reserved opcode 3 ignored.\n"); 203 }}, IsNonSpeculative); 204 0x58: m5reserved4({{ 205 warn("M5 reserved opcode 4 ignored.\n"); 206 }}, IsNonSpeculative); 207 0x59: m5reserved5({{ 208 warn("M5 reserved opcode 5 ignored.\n"); 209 }}, IsNonSpeculative); 210 0x5a: m5_work_begin({{ 211 PseudoInst::workbegin(xc->tcBase(), Rdi, Rsi); 212 }}, IsNonSpeculative); 213 0x5b: m5_work_end({{ 214 PseudoInst::workend(xc->tcBase(), Rdi, Rsi); 215 }}, IsNonSpeculative); 216 default: Inst::UD2(); 217 } 218 } 219#if FULL_SYSTEM 220 0x05: decode MODE_MODE { 221 0x0: decode MODE_SUBMODE { 222 0x0: Inst::SYSCALL_64(); 223 0x1: Inst::SYSCALL_COMPAT(); 224 } 225 0x1: Inst::SYSCALL_LEGACY(); 226 } 227#else 228 0x05: SyscallInst::syscall('xc->syscall(Rax)', 229 IsSyscall, IsNonSpeculative, IsSerializeAfter); 230#endif 231 0x06: Inst::CLTS(); 232 0x07: decode MODE_SUBMODE { 233 0x0: decode OPSIZE { 234 // Return to 64 bit mode. 235 0x8: Inst::SYSRET_TO_64(); 236 // Return to compatibility mode. 237 default: Inst::SYSRET_TO_COMPAT(); 238 } 239 default: Inst::SYSRET_NON_64(); 240 } 241 } 242 0x01: decode OPCODE_OP_BOTTOM3 { 243 0x0: invd(); 244 0x1: wbinvd(); 245 0x2: Inst::UD2(); 246 0x3: Inst::UD2(); 247 0x4: Inst::UD2(); 248 0x5: Inst::PREFETCH(Mb); 249 0x6: FailUnimpl::femms(); 250 0x7: decode IMMEDIATE { 251 0x0C: pi2fw_Pq_Qq(); 252 0x0D: pi2fd_Pq_Qq(); 253 0x1C: pf2iw_Pq_Qq(); 254 0x1D: pf2id_Pq_Qq(); 255 0x8A: pfnacc_Pq_Qq(); 256 0x8E: pfpnacc_Pq_Qq(); 257 0x90: pfcmpge_Pq_Qq(); 258 0x94: pfmin_Pq_Qq(); 259 0x96: pfrcp_Pq_Qq(); 260 0x97: pfrsqrt_Pq_Qq(); 261 0x9A: Inst::PFSUB(Pq,Qq); 262 0x9E: pfadd_Pq_Qq(); 263 0xA0: pfcmpgt_Pq_Qq(); 264 0xA4: pfmax_Pq_Qq(); 265 0xA6: pfrcpit1_Pq_Qq(); 266 0xA7: pfrsqit1_Pq_Qq(); 267 0xAA: Inst::PFSUBR(Pq,Qq); 268 0xAE: pfacc_Pq_Qq(); 269 0xB0: pfcmpeq_Pq_Qq(); 270 0xB4: Inst::PFMUL(Pq,Qq); 271 0xB6: pfrcpit2_Pq_Qq(); 272 0xB7: Inst::PMULHRW(Pq,Qq); 273 0xBB: pswapd_Pq_Qq(); 274 0xBF: pavgusb_Pq_Qq(); 275 default: Inst::UD2(); 276 } 277 } 278 format Inst{ 279 0x02: decode LEGACY_DECODEVAL { 280 // no prefix 281 0x0: decode OPCODE_OP_BOTTOM3 { 282 0x0: MOVUPS(Vo,Wo); 283 0x1: MOVUPS(Wo,Vo); 284 0x2: decode MODRM_MOD { 285 0x3: MOVHLPS(Vps,VRq); 286 default: MOVLPS(Vps,Mq); 287 } 288 0x3: MOVLPS(Mq,Vps); 289 0x4: UNPCKLPS(Vps,Wq); 290 0x5: UNPCKHPS(Vps,Wq); 291 0x6: decode MODRM_MOD { 292 0x3: MOVLHPS(Vps,VRq); 293 default: MOVHPS(Vps,Mq); 294 } 295 0x7: MOVHPS(Mq,Vq); 296 } 297 // repe (0xF3) 298 0x4: decode OPCODE_OP_BOTTOM3 { 299 0x0: MOVSS(Vd,Wd); 300 0x1: MOVSS(Wd,Vd); 301 0x2: WarnUnimpl::movsldup_Vo_Wo(); 302 0x6: WarnUnimpl::movshdup_Vo_Wo(); 303 default: UD2(); 304 } 305 // operand size (0x66) 306 0x1: decode OPCODE_OP_BOTTOM3 { 307 0x0: MOVUPD(Vo,Wo); 308 0x1: MOVUPD(Wo,Vo); 309 0x2: MOVLPD(Vq,Mq); 310 0x3: MOVLPD(Mq,Vq); 311 0x4: UNPCKLPD(Vo,Wq); 312 0x5: UNPCKHPD(Vo,Wo); 313 0x6: MOVHPD(Vq,Mq); 314 0x7: MOVHPD(Mq,Vq); 315 } 316 // repne (0xF2) 317 0x8: decode OPCODE_OP_BOTTOM3 { 318 0x0: MOVSD(Vq,Wq); 319 0x1: MOVSD(Wq,Vq); 320 0x2: MOVDDUP(Vo,Wq); 321 default: UD2(); 322 } 323 default: UD2(); 324 } 325 0x03: decode OPCODE_OP_BOTTOM3 { 326 //group16(); 327 0x0: decode MODRM_REG { 328 0x0: WarnUnimpl::prefetch_nta(); 329 0x1: PREFETCH_T0(Mb); 330 0x2: WarnUnimpl::prefetch_t1(); 331 0x3: WarnUnimpl::prefetch_t2(); 332 default: HINT_NOP(); 333 } 334 0x1: HINT_NOP(); 335 0x2: HINT_NOP(); 336 0x3: HINT_NOP(); 337 0x4: HINT_NOP(); 338 0x5: HINT_NOP(); 339 0x6: HINT_NOP(); 340 0x7: HINT_NOP(); 341 } 342 0x04: decode LEGACY_DECODEVAL { 343 // no prefix 344 0x0: decode OPCODE_OP_BOTTOM3 { 345 0x0: MOV(Rd,Cd); 346 0x1: MOV(Rd,Dd); 347 0x2: MOV(Cd,Rd); 348 0x3: MOV(Dd,Rd); 349 default: UD2(); 350 } 351 default: UD2(); 352 } 353 0x05: decode LEGACY_DECODEVAL { 354 // no prefix 355 0x0: decode OPCODE_OP_BOTTOM3 { 356 //These moves should really use size o (octword), but 357 //because they are split in two, they use q (quadword). 358 0x0: MOVAPS(Vq,Wq); 359 0x1: MOVAPS(Wq,Vq); 360 0x2: CVTPI2PS(Vq,Qq); 361 0x3: WarnUnimpl::movntps_Mo_Vo(); 362 0x4: CVTTPS2PI(Pq,Wq); 363 0x5: CVTPS2PI(Pq,Wq); 364 0x6: UCOMISS(Vd,Wd); 365 0x7: COMISS(Vd,Wd); 366 } 367 // repe (0xF3) 368 0x4: decode OPCODE_OP_BOTTOM3 { 369 0x2: CVTSI2SS(Vd,Ed); 370 0x4: CVTTSS2SI(Gd,Wd); 371 0x5: CVTSS2SI(Gd,Wd); 372 default: UD2(); 373 } 374 // operand size (0x66) 375 0x1: decode OPCODE_OP_BOTTOM3 { 376 0x0: MOVAPD(Vo,Wo); 377 0x1: MOVAPD(Wo,Vo); 378 0x2: CVTPI2PD(Vo,Qq); 379 0x3: WarnUnimpl::movntpd_Mo_Vo(); 380 0x4: CVTTPD2PI(Pq,Wo); 381 0x5: CVTPD2PI(Pq,Wo); 382 0x6: UCOMISD(Vq,Wq); 383 0x7: COMISD(Vq,Wq); 384 } 385 // repne (0xF2) 386 0x8: decode OPCODE_OP_BOTTOM3 { 387 // The size of the V operand should be q, not dp 388 0x2: CVTSI2SD(Vdp,Edp); 389 // The size of the W operand should be q, not dp 390 0x4: CVTTSD2SI(Gdp,Wdp); 391 0x5: CVTSD2SI(Gd,Wq); 392 default: UD2(); 393 } 394 default: UD2(); 395 } 396 } 397 0x06: decode OPCODE_OP_BOTTOM3 { 398 0x0: Inst::WRMSR(); 399 0x1: Inst::RDTSC(); 400 0x2: Inst::RDMSR(); 401 0x3: rdpmc(); 402#if FULL_SYSTEM 403 0x4: sysenter(); 404#else 405 0x4: SyscallInst::sysenter('xc->syscall(Rax)', 406 IsSyscall, IsNonSpeculative, IsSerializeAfter); 407#endif 408 0x5: sysexit(); 409 0x6: Inst::UD2(); 410 0x7: getsec(); 411 } 412 0x07: decode OPCODE_OP_BOTTOM3 { 413 0x0: M5InternalError::error( 414 {{"Three byte opcode shouldn't be handled by " 415 "two_byte_opcodes.isa!"}}); 416 0x2: M5InternalError::error( 417 {{"Three byte opcode shouldn't be handled by " 418 "two_byte_opcodes.isa!"}}); 419 default: UD2(); 420 } 421 format Inst { 422 0x08: decode OPCODE_OP_BOTTOM3 { 423 0x0: CMOVO(Gv,Ev); 424 0x1: CMOVNO(Gv,Ev); 425 0x2: CMOVB(Gv,Ev); 426 0x3: CMOVNB(Gv,Ev); 427 0x4: CMOVZ(Gv,Ev); 428 0x5: CMOVNZ(Gv,Ev); 429 0x6: CMOVBE(Gv,Ev); 430 0x7: CMOVNBE(Gv,Ev); 431 } 432 0x09: decode OPCODE_OP_BOTTOM3 { 433 0x0: CMOVS(Gv,Ev); 434 0x1: CMOVNS(Gv,Ev); 435 0x2: CMOVP(Gv,Ev); 436 0x3: CMOVNP(Gv,Ev); 437 0x4: CMOVL(Gv,Ev); 438 0x5: CMOVNL(Gv,Ev); 439 0x6: CMOVLE(Gv,Ev); 440 0x7: CMOVNLE(Gv,Ev); 441 } 442 0x0A: decode LEGACY_DECODEVAL { 443 // no prefix 444 0x0: decode OPCODE_OP_BOTTOM3 { 445 0x0: MOVMSKPS(Gd,VRo); 446 0x1: SQRTPS(Vo,Wo); 447 0x2: WarnUnimpl::rqsrtps_Vo_Wo(); 448 0x3: WarnUnimpl::rcpps_Vo_Wo(); 449 0x4: ANDPS(Vo,Wo); 450 0x5: ANDNPS(Vo,Wo); 451 0x6: ORPS(Vo,Wo); 452 0x7: XORPS(Vo,Wo); 453 } 454 // repe (0xF3) 455 0x4: decode OPCODE_OP_BOTTOM3 { 456 0x1: SQRTSS(Vd,Wd); 457 0x2: WarnUnimpl::rsqrtss_Vd_Wd(); 458 0x3: WarnUnimpl::rcpss_Vd_Wd(); 459 default: UD2(); 460 } 461 // operand size (0x66) 462 0x1: decode OPCODE_OP_BOTTOM3 { 463 0x0: MOVMSKPD(Gd,VRo); 464 0x1: SQRTPD(Vo,Wo); 465 0x4: ANDPD(Vo,Wo); 466 0x5: ANDNPD(Vo,Wo); 467 0x6: ORPD(Vo,Wo); 468 0x7: XORPD(Vo,Wo); 469 default: UD2(); 470 } 471 // repne (0xF2) 472 0x8: decode OPCODE_OP_BOTTOM3 { 473 0x1: SQRTSD(Vq,Wq); 474 default: UD2(); 475 } 476 default: UD2(); 477 } 478 0x0B: decode LEGACY_DECODEVAL { 479 // no prefix 480 0x0: decode OPCODE_OP_BOTTOM3 { 481 0x0: ADDPS(Vo,Wo); 482 0x1: MULPS(Vo,Wo); 483 0x2: CVTPS2PD(Vo,Wq); 484 0x3: CVTDQ2PS(Vo,Wo); 485 0x4: SUBPS(Vo,Wo); 486 0x5: MINPS(Vo,Wo); 487 0x6: DIVPS(Vo,Wo); 488 0x7: MAXPS(Vo,Wo); 489 } 490 // repe (0xF3) 491 0x4: decode OPCODE_OP_BOTTOM3 { 492 0x0: ADDSS(Vd,Wd); 493 0x1: MULSS(Vd,Wd); 494 0x2: CVTSS2SD(Vq,Wd); 495 0x3: CVTTPS2DQ(Vo,Wo); 496 0x4: SUBSS(Vd,Wd); 497 0x5: MINSS(Vd,Wd); 498 0x6: DIVSS(Vd,Wd); 499 0x7: MAXSS(Vd,Wd); 500 } 501 // operand size (0x66) 502 0x1: decode OPCODE_OP_BOTTOM3 { 503 0x0: ADDPD(Vo,Wo); 504 0x1: MULPD(Vo,Wo); 505 0x2: CVTPD2PS(Vo,Wo); 506 0x3: CVTPS2DQ(Vo,Wo); 507 0x4: SUBPD(Vo,Wo); 508 0x5: MINPD(Vo,Wo); 509 0x6: DIVPD(Vo,Wo); 510 0x7: MAXPD(Vo,Wo); 511 } 512 // repne (0xF2) 513 0x8: decode OPCODE_OP_BOTTOM3 { 514 0x0: ADDSD(Vq,Wq); 515 0x1: MULSD(Vq,Wq); 516 0x2: CVTSD2SS(Vd,Wq); 517 0x4: SUBSD(Vq,Wq); 518 0x5: MINSD(Vq,Wq); 519 0x6: DIVSD(Vq,Wq); 520 0x7: MAXSD(Vq,Wq); 521 default: UD2(); 522 } 523 default: UD2(); 524 } 525 0x0C: decode LEGACY_DECODEVAL { 526 // no prefix 527 0x0: decode OPCODE_OP_BOTTOM3 { 528 0x0: PUNPCKLBW(Pq,Qd); 529 0x1: PUNPCKLWD(Pq,Qd); 530 0x2: PUNPCKLDQ(Pq,Qd); 531 0x3: PACKSSWB(Pq,Qq); 532 0x4: PCMPGTB(Pq,Qq); 533 0x5: PCMPGTW(Pq,Qq); 534 0x6: PCMPGTD(Pq,Qq); 535 0x7: PACKUSWB(Pq,Qq); 536 } 537 // operand size (0x66) 538 0x1: decode OPCODE_OP_BOTTOM3 { 539 0x0: PUNPCKLBW(Vo,Wq); 540 0x1: PUNPCKLWD(Vo,Wq); 541 0x2: PUNPCKLDQ(Vo,Wq); 542 0x3: PACKSSWB(Vo,Wo); 543 0x4: PCMPGTB(Vo,Wo); 544 0x5: PCMPGTW(Vo,Wo); 545 0x6: PCMPGTD(Vo,Wo); 546 0x7: PACKUSWB(Vo,Wo); 547 } 548 default: UD2(); 549 } 550 0x0D: decode LEGACY_DECODEVAL { 551 // no prefix 552 0x0: decode OPCODE_OP_BOTTOM3 { 553 0x0: PUNPCKHBW(Pq,Qq); 554 0x1: PUNPCKHWD(Pq,Qq); 555 0x2: PUNPCKHDQ(Pq,Qq); 556 0x3: PACKSSDW(Pq,Qq); 557 0x6: MOVD(Pq,Edp); 558 0x7: MOVQ(Pq,Qq); 559 default: UD2(); 560 } 561 // repe (0xF3) 562 0x4: decode OPCODE_OP_BOTTOM3 { 563 0x7: MOVDQU(Vo,Wo); 564 default: UD2(); 565 } 566 // operand size (0x66) 567 0x1: decode OPCODE_OP_BOTTOM3 { 568 0x0: PUNPCKHBW(Vo,Wo); 569 0x1: PUNPCKHWD(Vo,Wo); 570 0x2: PUNPCKHDQ(Vo,Wo); 571 0x3: PACKSSDW(Vo,Wo); 572 0x4: PUNPCKLQDQ(Vo,Wq); 573 0x5: PUNPCKHQDQ(Vo,Wq); 574 0x6: MOVD(Vo,Edp); 575 0x7: MOVDQA(Vo,Wo); 576 } 577 default: UD2(); 578 } 579 0x0E: decode LEGACY_DECODEVAL { 580 // no prefix 581 0x0: decode OPCODE_OP_BOTTOM3 { 582 0x0: PSHUFW(Pq,Qq,Ib); 583 //0x1: group12_pshimw(); 584 0x1: decode MODRM_REG { 585 0x2: PSRLW(PRq,Ib); 586 0x4: PSRAW(PRq,Ib); 587 0x6: PSLLW(PRq,Ib); 588 default: UD2(); 589 } 590 //0x2: group13_pshimd(); 591 0x2: decode MODRM_REG { 592 0x2: PSRLD(PRq,Ib); 593 0x4: PSRAD(PRq,Ib); 594 0x6: PSLLD(PRq,Ib); 595 default: UD2(); 596 } 597 //0x3: group14_pshimq(); 598 0x3: decode MODRM_REG { 599 0x2: PSRLQ(PRq,Ib); 600 0x6: PSLLQ(PRq,Ib); 601 default: Inst::UD2(); 602 } 603 0x4: Inst::PCMPEQB(Pq,Qq); 604 0x5: Inst::PCMPEQW(Pq,Qq); 605 0x6: Inst::PCMPEQD(Pq,Qq); 606 0x7: WarnUnimpl::emms(); 607 } 608 // repe (0xF3) 609 0x4: decode OPCODE_OP_BOTTOM3 { 610 0x0: PSHUFHW(Vo,Wo,Ib); 611 default: UD2(); 612 } 613 // operand size (0x66) 614 0x1: decode OPCODE_OP_BOTTOM3 { 615 0x0: PSHUFD(Vo,Wo,Ib); 616 //0x1: group12_pshimw(); 617 0x1: decode MODRM_REG { 618 0x2: PSRLW(VRo,Ib); 619 0x4: PSRAW(VRo,Ib); 620 0x6: PSLLW(VRo,Ib); 621 } 622 //0x2: group13_pshimd(); 623 0x2: decode MODRM_REG { 624 0x2: PSRLD(VRo,Ib); 625 0x4: PSRAD(VRo,Ib); 626 0x6: PSLLD(VRo,Ib); 627 default: UD2(); 628 } 629 //0x3: group14_pshimq(); 630 0x3: decode MODRM_REG { 631 0x2: PSRLQ(VRo,Ib); 632 0x3: PSRLDQ(VRo,Ib); 633 0x6: PSLLQ(VRo,Ib); 634 0x7: PSLLDQ(VRo,Ib); 635 default: UD2(); 636 } 637 0x4: PCMPEQB(Vo,Wo); 638 0x5: PCMPEQW(Vo,Wo); 639 0x6: PCMPEQD(Vo,Wo); 640 default: UD2(); 641 } 642 // repne (0xF2) 643 0x8: decode OPCODE_OP_BOTTOM3 { 644 0x0: PSHUFLW(Vo,Wo,Ib); 645 default: UD2(); 646 } 647 default: UD2(); 648 } 649 0x0F: decode LEGACY_DECODEVAL { 650 // no prefix 651 0x0: decode OPCODE_OP_BOTTOM3 { 652 0x0: WarnUnimpl::vmread_Edp_Gdp(); 653 0x1: WarnUnimpl::vmwrite_Gdp_Edp(); 654 0x6: MOVD(Edp,Pdp); 655 0x7: MOVQ(Qq,Pq); 656 default: UD2(); 657 } 658 // repe (0xF3) 659 0x4: decode OPCODE_OP_BOTTOM3 { 660 0x6: MOVQ(Vq,Wq); 661 0x7: MOVDQU(Wo,Vo); 662 default: UD2(); 663 } 664 // operand size (0x66) 665 0x1: decode OPCODE_OP_BOTTOM3 { 666 0x4: HADDPD(Vo,Wo); 667 0x5: WarnUnimpl::hsubpd_Vo_Wo(); 668 0x6: MOVD(Edp,Vd); 669 0x7: MOVDQA(Wo,Vo); 670 default: UD2(); 671 } 672 // repne (0xF2) 673 0x8: decode OPCODE_OP_BOTTOM3 { 674 0x4: WarnUnimpl::haddps_Vo_Wo(); 675 0x5: WarnUnimpl::hsubps_Vo_Wo(); 676 default: UD2(); 677 } 678 default: UD2(); 679 } 680 0x10: decode OPCODE_OP_BOTTOM3 { 681 0x0: JO(Jz); 682 0x1: JNO(Jz); 683 0x2: JB(Jz); 684 0x3: JNB(Jz); 685 0x4: JZ(Jz); 686 0x5: JNZ(Jz); 687 0x6: JBE(Jz); 688 0x7: JNBE(Jz); 689 } 690 0x11: decode OPCODE_OP_BOTTOM3 { 691 0x0: JS(Jz); 692 0x1: JNS(Jz); 693 0x2: JP(Jz); 694 0x3: JNP(Jz); 695 0x4: JL(Jz); 696 0x5: JNL(Jz); 697 0x6: JLE(Jz); 698 0x7: JNLE(Jz); 699 } 700 0x12: decode OPCODE_OP_BOTTOM3 { 701 0x0: SETO(Eb); 702 0x1: SETNO(Eb); 703 0x2: SETB(Eb); 704 0x3: SETNB(Eb); 705 0x4: SETZ(Eb); 706 0x5: SETNZ(Eb); 707 0x6: SETBE(Eb); 708 0x7: SETNBE(Eb); 709 } 710 0x13: decode OPCODE_OP_BOTTOM3 { 711 0x0: SETS(Eb); 712 0x1: SETNS(Eb); 713 0x2: SETP(Eb); 714 0x3: SETNP(Eb); 715 0x4: SETL(Eb); 716 0x5: SETNL(Eb); 717 0x6: SETLE(Eb); 718 0x7: SETNLE(Eb); 719 } 720 } 721 0x14: decode OPCODE_OP_BOTTOM3 { 722 0x0: push_fs(); 723 0x1: pop_fs(); 724 0x2: CPUIDInst::CPUID({{ 725 CpuidResult result; 726 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0), 727 bits(Rcx, 31, 0), result); 728 Rax = result.rax; 729 Rbx = result.rbx; 730 Rcx = result.rcx; 731 Rdx = result.rdx; 732 }}); 733 0x3: Inst::BT(Ev,Gv); 734 0x4: Inst::SHLD(Ev,Gv,Ib); 735 0x5: Inst::SHLD(Ev,Gv); 736 default: Inst::UD2(); 737 } 738 0x15: decode OPCODE_OP_BOTTOM3 { 739 0x0: push_gs(); 740 0x1: pop_gs(); 741 0x2: rsm_smm(); 742 0x3: Inst::BTS(Ev,Gv); 743 0x4: Inst::SHRD(Ev,Gv,Ib); 744 0x5: Inst::SHRD(Ev,Gv); 745 //0x6: group15(); 746 0x6: decode MODRM_MOD { 747 0x3: decode MODRM_REG { 748 0x5: BasicOperate::LFENCE( 749 {{/*Nothing*/}}, IsReadBarrier); 750 0x6: BasicOperate::MFENCE( 751 {{/*Nothing*/}}, IsMemBarrier); 752 0x7: BasicOperate::SFENCE( 753 {{/*Nothing*/}}, IsWriteBarrier); 754 default: Inst::UD2(); 755 } 756 default: decode MODRM_REG { 757 0x0: fxsave(); 758 0x1: fxrstor(); 759 0x2: Inst::LDMXCSR(Md); 760 0x3: Inst::STMXCSR(Md); 761 0x4: xsave(); 762 0x5: xrstor(); 763 0x6: Inst::UD2(); 764 0x7: clflush(); 765 } 766 } 767 0x7: Inst::IMUL(Gv,Ev); 768 } 769 format Inst { 770 0x16: decode OPCODE_OP_BOTTOM3 { 771 0x0: CMPXCHG(Eb,Gb); 772 0x1: CMPXCHG(Ev,Gv); 773 0x2: WarnUnimpl::lss_Gz_Mp(); 774 0x3: BTR(Ev,Gv); 775 0x4: WarnUnimpl::lfs_Gz_Mp(); 776 0x5: WarnUnimpl::lgs_Gz_Mp(); 777 //The size of the second operand in these instructions 778 //should really be "b" or "w", but it's set to v in order 779 //to have a consistent register size. This shouldn't 780 //affect behavior. 781 0x6: MOVZX_B(Gv,Ev); 782 0x7: MOVZX_W(Gv,Ev); 783 } 784 0x17: decode OPCODE_OP_BOTTOM3 { 785 0x0: decode LEGACY_REP { 786 0x0: WarnUnimpl::jmpe_Jz(); 787 0x1: WarnUnimpl::popcnt_Gv_Ev(); 788 } 789 //0x1: group10_UD2(); 790 0x1: UD2(); 791 //0x2: group8_Ev_Ib(); 792 0x2: decode MODRM_REG { 793 0x4: BT(Ev,Ib); 794 0x5: BTS(Ev,Ib); 795 0x6: BTR(Ev,Ib); 796 0x7: BTC(Ev,Ib); 797 default: UD2(); 798 } 799 0x3: BTC(Ev,Gv); 800 0x4: BSF(Gv,Ev); 801 0x5: BSR(Gv,Ev); 802 //The size of the second operand in these instructions 803 //should really be "b" or "w", but it's set to v in order 804 //to have a consistent register size. This shouldn't 805 //affect behavior. 806 0x6: MOVSX_B(Gv,Ev); 807 0x7: MOVSX_W(Gv,Ev); 808 } 809 0x18: decode OPCODE_OP_BOTTOM3 { 810 0x0: XADD(Eb,Gb); 811 0x1: XADD(Ev,Gv); 812 //0x7: group9(); 813 0x7: decode MODRM_REG { 814 //Also CMPXCHG16B 815 0x1: CMPXCHG8B(Mdp); 816 0x6: decode LEGACY_OP { 817 0x1: WarnUnimpl::vmclear_Mq(); 818 default: decode LEGACY_REP { 819 0x1: WarnUnimpl::vmxon_Mq(); 820 0x0: WarnUnimpl::vmptrld_Mq(); 821 } 822 } 823 0x7: WarnUnimpl::vmptrst_Mq(); 824 default: UD2(); 825 } 826 default: decode LEGACY_DECODEVAL { 827 // no prefix 828 0x0: decode OPCODE_OP_BOTTOM3 { 829 0x2: CMPPS(Vo,Wo,Ib); 830 0x3: MOVNTI(Mdp,Gdp); 831 0x4: PINSRW(Pq,Ew,Ib); 832 0x5: PEXTRW(Gd,PRq,Ib); 833 0x6: SHUFPS(Vps,Wps,Ib); 834 } 835 // repe (0xF3) 836 0x4: decode OPCODE_OP_BOTTOM3 { 837 0x2: CMPSS(Vd,Wd,Ib); 838 default: UD2(); 839 } 840 // operand size (0x66) 841 0x1: decode OPCODE_OP_BOTTOM3 { 842 0x2: CMPPD(Vo,Wo,Ib); 843 0x4: PINSRW(Vdw,Ew,Ib); 844 0x5: PEXTRW(Gd,VRdq,Ib); 845 0x6: SHUFPD(Vpd,Wpd,Ib); 846 default: UD2(); 847 } 848 // repne (0xF2) 849 0x8: decode OPCODE_OP_BOTTOM3 { 850 0x2: CMPSD(Vq,Wq,Ib); 851 default: UD2(); 852 } 853 default: UD2(); 854 } 855 } 856 0x19: decode OPSIZE { 857 4: BSWAP_D(Bd); 858 8: BSWAP_Q(Bq); 859 default: UD2(); 860 } 861 0x1A: decode LEGACY_DECODEVAL { 862 // no prefix 863 0x0: decode OPCODE_OP_BOTTOM3 { 864 0x1: PSRLW(Pq,Qq); 865 0x2: PSRLD(Pq,Qq); 866 0x3: PSRLQ(Pq,Qq); 867 0x4: PADDQ(Pq,Qq); 868 0x5: PMULLW(Pq,Qq); 869 0x7: PMOVMSKB(Gd,PRq); 870 default: UD2(); 871 } 872 // repe (0xF3) 873 0x4: decode OPCODE_OP_BOTTOM3 { 874 0x6: MOVQ2DQ(Vo,PRq); 875 default: UD2(); 876 } 877 // operand size (0x66) 878 0x1: decode OPCODE_OP_BOTTOM3 { 879 0x0: WarnUnimpl::addsubpd_Vo_Wo(); 880 0x1: PSRLW(Vo,Wo); 881 0x2: PSRLD(Vo,Wo); 882 0x3: PSRLQ(Vo,Wo); 883 0x4: PADDQ(Vo,Wo); 884 0x5: PMULLW(Vo,Wo); 885 0x6: MOVQ(Wq,Vq); 886 0x7: PMOVMSKB(Gd,VRo); 887 } 888 // repne (0xF2) 889 0x8: decode OPCODE_OP_BOTTOM3 { 890 0x0: WarnUnimpl::addsubps_Vo_Wo(); 891 0x6: MOVDQ2Q(Pq,VRq); 892 default: UD2(); 893 } 894 default: UD2(); 895 } 896 0x1B: decode LEGACY_DECODEVAL { 897 // no prefix 898 0x0: decode OPCODE_OP_BOTTOM3 { 899 0x0: PSUBUSB(Pq,Qq); 900 0x1: PSUBUSW(Pq,Qq); 901 0x2: PMINUB(Pq,Qq); 902 0x3: PAND(Pq,Qq); 903 0x4: PADDUSB(Pq,Qq); 904 0x5: PADDUSW(Pq,Qq); 905 0x6: PMAXUB(Pq,Qq); 906 0x7: PANDN(Pq,Qq); 907 } 908 // operand size (0x66) 909 0x1: decode OPCODE_OP_BOTTOM3 { 910 0x0: PSUBUSB(Vo,Wo); 911 0x1: PSUBUSW(Vo,Wo); 912 0x2: PMINUB(Vo,Wo); 913 0x3: PAND(Vo,Wo); 914 0x4: PADDUSB(Vo,Wo); 915 0x5: PADDUSW(Vo,Wo); 916 0x6: PMAXUB(Vo,Wo); 917 0x7: PANDN(Vo,Wo); 918 } 919 default: UD2(); 920 } 921 0x1C: decode LEGACY_DECODEVAL { 922 // no prefix 923 0x0: decode OPCODE_OP_BOTTOM3 { 924 0x0: PAVGB(Pq,Qq); 925 0x1: PSRAW(Pq,Qq); 926 0x2: PSRAD(Pq,Qq); 927 0x3: PAVGW(Pq,Qq); 928 0x4: PMULHUW(Pq,Qq); 929 0x5: PMULHW(Pq,Qq); 930 0x7: WarnUnimpl::movntq_Mq_Pq(); 931 default: UD2(); 932 } 933 // repe (0xF3) 934 0x4: decode OPCODE_OP_BOTTOM3 { 935 0x6: CVTDQ2PD(Vo,Wq); 936 default: UD2(); 937 } 938 // operand size (0x66) 939 0x1: decode OPCODE_OP_BOTTOM3 { 940 0x0: PAVGB(Vo,Wo); 941 0x1: PSRAW(Vo,Wo); 942 0x2: PSRAD(Vo,Wo); 943 0x3: PAVGW(Vo,Wo); 944 0x4: PMULHUW(Vo,Wo); 945 0x5: PMULHW(Vo,Wo); 946 0x6: CVTTPD2DQ(Vo,Wo); 947 0x7: WarnUnimpl::movntdq_Mo_Vo(); 948 } 949 // repne (0xF2) 950 0x8: decode OPCODE_OP_BOTTOM3 { 951 0x6: CVTPD2DQ(Vo,Wo); 952 default: UD2(); 953 } 954 default: UD2(); 955 } 956 0x1D: decode LEGACY_DECODEVAL { 957 // no prefix 958 0x0: decode OPCODE_OP_BOTTOM3 { 959 0x0: PSUBSB(Pq,Qq); 960 0x1: PSUBSW(Pq,Qq); 961 0x2: PMINSW(Pq,Qq); 962 0x3: POR(Pq,Qq); 963 0x4: PADDSB(Pq,Qq); 964 0x5: PADDSW(Pq,Qq); 965 0x6: PMAXSW(Pq,Qq); 966 0x7: PXOR(Pq,Qq); 967 } 968 // operand size (0x66) 969 0x1: decode OPCODE_OP_BOTTOM3 { 970 0x0: PSUBSB(Vo,Wo); 971 0x1: PSUBSW(Vo,Wo); 972 0x2: PMINSW(Vo,Wo); 973 0x3: POR(Vo,Wo); 974 0x4: PADDSB(Vo,Wo); 975 0x5: PADDSW(Vo,Wo); 976 0x6: PMAXSW(Vo,Wo); 977 0x7: PXOR(Vo,Wo); 978 } 979 default: UD2(); 980 } 981 0x1E: decode LEGACY_DECODEVAL { 982 // no prefix 983 0x0: decode OPCODE_OP_BOTTOM3 { 984 0x1: PSLLW(Pq,Qq); 985 0x2: PSLLD(Pq,Qq); 986 0x3: PSLLQ(Pq,Qq); 987 0x4: PMULUDQ(Pq,Qq); 988 0x5: PMADDWD(Pq,Qq); 989 0x6: PSADBW(Pq,Qq); 990 0x7: MASKMOVQ(Pq,PRq); 991 default: UD2(); 992 } 993 // operand size (0x66) 994 0x1: decode OPCODE_OP_BOTTOM3 { 995 0x1: PSLLW(Vo,Wo); 996 0x2: PSLLD(Vo,Wo); 997 0x3: PSLLQ(Vo,Wo); 998 0x4: PMULUDQ(Vo,Wo); 999 0x5: PMADDWD(Vo,Wo); 1000 0x6: PSADBW(Vo,Wo); 1001 0x7: MASKMOVDQU(Vo,VRo); 1002 default: UD2(); 1003 } 1004 // repne (0xF2) 1005 0x8: decode OPCODE_OP_BOTTOM3 { 1006 0x0: WarnUnimpl::lddqu_Vo_Mo(); 1007 default: UD2(); 1008 } 1009 default: UD2(); 1010 } 1011 0x1F: decode LEGACY_DECODEVAL { 1012 // no prefix 1013 0x0: decode OPCODE_OP_BOTTOM3 { 1014 0x0: PSUBB(Pq,Qq); 1015 0x1: PSUBW(Pq,Qq); 1016 0x2: PSUBD(Pq,Qq); 1017 0x3: PSUBQ(Pq,Qq); 1018 0x4: PADDB(Pq,Qq); 1019 0x5: PADDW(Pq,Qq); 1020 0x6: PADDD(Pq,Qq); 1021 0x7: UD2(); 1022 } 1023 // operand size (0x66) 1024 0x1: decode OPCODE_OP_BOTTOM3 { 1025 0x0: PSUBB(Vo,Wo); 1026 0x1: PSUBW(Vo,Wo); 1027 0x2: PSUBD(Vo,Wo); 1028 0x3: PSUBQ(Vo,Wo); 1029 0x4: PADDB(Vo,Wo); 1030 0x5: PADDW(Vo,Wo); 1031 0x6: PADDD(Vo,Wo); 1032 0x7: UD2(); 1033 } 1034 default: UD2(); 1035 } 1036 } 1037 default: FailUnimpl::twoByteOps(); 1038 } 1039 } 1040 default: M5InternalError::error( 1041 {{"Unexpected first opcode byte in two byte opcode!"}}); 1042} 1043