two_byte_opcodes.isa revision 7720:65d338a8dba4
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#if FULL_SYSTEM 140 0x00: m5arm({{ 141 PseudoInst::arm(xc->tcBase()); 142 }}, IsNonSpeculative); 143 0x01: m5quiesce({{ 144 PseudoInst::quiesce(xc->tcBase()); 145 }}, IsNonSpeculative); 146 0x02: m5quiesceNs({{ 147 PseudoInst::quiesceNs(xc->tcBase(), Rdi); 148 }}, IsNonSpeculative); 149 0x03: m5quiesceCycle({{ 150 PseudoInst::quiesceCycles(xc->tcBase(), Rdi); 151 }}, IsNonSpeculative); 152 0x04: m5quiesceTime({{ 153 Rax = PseudoInst::quiesceTime(xc->tcBase()); 154 }}, IsNonSpeculative); 155#endif 156 0x07: m5rpns({{ 157 Rax = PseudoInst::rpns(xc->tcBase()); 158 }}, IsNonSpeculative); 159 0x21: m5exit({{ 160 PseudoInst::m5exit(xc->tcBase(), Rdi); 161 }}, IsNonSpeculative); 162#if FULL_SYSTEM 163 0x30: m5initparam({{ 164 Rax = xc->tcBase()->getCpuPtr()-> 165 system->init_param; 166 }}, IsNonSpeculative); 167 0x31: m5loadsymbol({{ 168 PseudoInst::loadsymbol(xc->tcBase()); 169 }}, IsNonSpeculative); 170#endif 171 0x40: m5resetstats({{ 172 PseudoInst::resetstats(xc->tcBase(), Rdi, Rsi); 173 }}, IsNonSpeculative); 174 0x41: m5dumpstats({{ 175 PseudoInst::dumpstats(xc->tcBase(), Rdi, Rsi); 176 }}, IsNonSpeculative); 177 0x42: m5dumpresetstats({{ 178 PseudoInst::dumpresetstats(xc->tcBase(), Rdi, Rsi); 179 }}, IsNonSpeculative); 180 0x43: m5checkpoint({{ 181 PseudoInst::m5checkpoint(xc->tcBase(), Rdi, Rsi); 182 }}, IsNonSpeculative); 183#if FULL_SYSTEM 184 0x50: m5readfile({{ 185 Rax = PseudoInst::readfile( 186 xc->tcBase(), Rdi, Rsi, Rdx); 187 }}, IsNonSpeculative); 188#endif 189 0x51: m5debugbreak({{ 190 PseudoInst::debugbreak(xc->tcBase()); 191 }}, IsNonSpeculative); 192 0x52: m5switchcpu({{ 193 PseudoInst::switchcpu(xc->tcBase()); 194 }}, IsNonSpeculative); 195#if FULL_SYSTEM 196 0x53: m5addsymbol({{ 197 PseudoInst::addsymbol(xc->tcBase(), Rdi, Rsi); 198 }}, IsNonSpeculative); 199#endif 200 0x54: m5panic({{ 201 panic("M5 panic instruction called at pc=%#x.\n", 202 xc->pcState().pc()); 203 }}, IsNonSpeculative); 204 0x55: m5reserved1({{ 205 warn("M5 reserved opcode 1 ignored.\n"); 206 }}, IsNonSpeculative); 207 0x56: m5reserved2({{ 208 warn("M5 reserved opcode 2 ignored.\n"); 209 }}, IsNonSpeculative); 210 0x57: m5reserved3({{ 211 warn("M5 reserved opcode 3 ignored.\n"); 212 }}, IsNonSpeculative); 213 0x58: m5reserved4({{ 214 warn("M5 reserved opcode 4 ignored.\n"); 215 }}, IsNonSpeculative); 216 0x59: m5reserved5({{ 217 warn("M5 reserved opcode 5 ignored.\n"); 218 }}, IsNonSpeculative); 219 default: Inst::UD2(); 220 } 221 } 222#if FULL_SYSTEM 223 0x05: decode MODE_MODE { 224 0x0: decode MODE_SUBMODE { 225 0x0: Inst::SYSCALL_64(); 226 0x1: Inst::SYSCALL_COMPAT(); 227 } 228 0x1: Inst::SYSCALL_LEGACY(); 229 } 230#else 231 0x05: SyscallInst::syscall('xc->syscall(Rax)', 232 IsSyscall, IsNonSpeculative, IsSerializeAfter); 233#endif 234 0x06: Inst::CLTS(); 235 0x07: decode MODE_SUBMODE { 236 0x0: decode OPSIZE { 237 // Return to 64 bit mode. 238 0x8: Inst::SYSRET_TO_64(); 239 // Return to compatibility mode. 240 default: Inst::SYSRET_TO_COMPAT(); 241 } 242 default: Inst::SYSRET_NON_64(); 243 } 244 } 245 0x01: decode OPCODE_OP_BOTTOM3 { 246 0x0: invd(); 247 0x1: wbinvd(); 248 0x2: Inst::UD2(); 249 0x3: Inst::UD2(); 250 0x4: Inst::UD2(); 251 0x5: Inst::PREFETCH(Mb); 252 0x6: FailUnimpl::femms(); 253 0x7: decode IMMEDIATE { 254 0x0C: pi2fw_Pq_Qq(); 255 0x0D: pi2fd_Pq_Qq(); 256 0x1C: pf2iw_Pq_Qq(); 257 0x1D: pf2id_Pq_Qq(); 258 0x8A: pfnacc_Pq_Qq(); 259 0x8E: pfpnacc_Pq_Qq(); 260 0x90: pfcmpge_Pq_Qq(); 261 0x94: pfmin_Pq_Qq(); 262 0x96: pfrcp_Pq_Qq(); 263 0x97: pfrsqrt_Pq_Qq(); 264 0x9A: Inst::PFSUB(Pq,Qq); 265 0x9E: pfadd_Pq_Qq(); 266 0xA0: pfcmpgt_Pq_Qq(); 267 0xA4: pfmax_Pq_Qq(); 268 0xA6: pfrcpit1_Pq_Qq(); 269 0xA7: pfrsqit1_Pq_Qq(); 270 0xAA: Inst::PFSUBR(Pq,Qq); 271 0xAE: pfacc_Pq_Qq(); 272 0xB0: pfcmpeq_Pq_Qq(); 273 0xB4: Inst::PFMUL(Pq,Qq); 274 0xB6: pfrcpit2_Pq_Qq(); 275 0xB7: Inst::PMULHRW(Pq,Qq); 276 0xBB: pswapd_Pq_Qq(); 277 0xBF: pavgusb_Pq_Qq(); 278 default: Inst::UD2(); 279 } 280 } 281 format Inst{ 282 0x02: decode LEGACY_DECODEVAL { 283 // no prefix 284 0x0: decode OPCODE_OP_BOTTOM3 { 285 0x0: MOVUPS(Vo,Wo); 286 0x1: MOVUPS(Wo,Vo); 287 0x2: decode MODRM_MOD { 288 0x3: MOVHLPS(Vps,VRq); 289 default: MOVLPS(Vps,Mq); 290 } 291 0x3: MOVLPS(Mq,Vps); 292 0x4: UNPCKLPS(Vps,Wq); 293 0x5: UNPCKHPS(Vps,Wq); 294 0x6: decode MODRM_MOD { 295 0x3: MOVLHPS(Vps,VRq); 296 default: MOVHPS(Vps,Mq); 297 } 298 0x7: MOVHPS(Mq,Vq); 299 } 300 // repe (0xF3) 301 0x4: decode OPCODE_OP_BOTTOM3 { 302 0x0: MOVSS(Vd,Wd); 303 0x1: MOVSS(Wd,Vd); 304 0x2: WarnUnimpl::movsldup_Vo_Wo(); 305 0x6: WarnUnimpl::movshdup_Vo_Wo(); 306 default: UD2(); 307 } 308 // operand size (0x66) 309 0x1: decode OPCODE_OP_BOTTOM3 { 310 0x0: MOVUPD(Vo,Wo); 311 0x1: MOVUPD(Wo,Vo); 312 0x2: MOVLPD(Vq,Mq); 313 0x3: MOVLPD(Mq,Vq); 314 0x4: UNPCKLPD(Vo,Wq); 315 0x5: UNPCKHPD(Vo,Wo); 316 0x6: MOVHPD(Vq,Mq); 317 0x7: MOVHPD(Mq,Vq); 318 } 319 // repne (0xF2) 320 0x8: decode OPCODE_OP_BOTTOM3 { 321 0x0: MOVSD(Vq,Wq); 322 0x1: MOVSD(Wq,Vq); 323 0x2: MOVDDUP(Vo,Wq); 324 default: UD2(); 325 } 326 default: UD2(); 327 } 328 0x03: decode OPCODE_OP_BOTTOM3 { 329 //group16(); 330 0x0: decode MODRM_REG { 331 0x0: WarnUnimpl::prefetch_nta(); 332 0x1: PREFETCH_T0(Mb); 333 0x2: WarnUnimpl::prefetch_t1(); 334 0x3: WarnUnimpl::prefetch_t2(); 335 default: HINT_NOP(); 336 } 337 0x1: HINT_NOP(); 338 0x2: HINT_NOP(); 339 0x3: HINT_NOP(); 340 0x4: HINT_NOP(); 341 0x5: HINT_NOP(); 342 0x6: HINT_NOP(); 343 0x7: HINT_NOP(); 344 } 345 0x04: decode LEGACY_DECODEVAL { 346 // no prefix 347 0x0: decode OPCODE_OP_BOTTOM3 { 348 0x0: MOV(Rd,Cd); 349 0x1: MOV(Rd,Dd); 350 0x2: MOV(Cd,Rd); 351 0x3: MOV(Dd,Rd); 352 default: UD2(); 353 } 354 default: UD2(); 355 } 356 0x05: decode LEGACY_DECODEVAL { 357 // no prefix 358 0x0: decode OPCODE_OP_BOTTOM3 { 359 //These moves should really use size o (octword), but 360 //because they are split in two, they use q (quadword). 361 0x0: MOVAPS(Vq,Wq); 362 0x1: MOVAPS(Wq,Vq); 363 0x2: CVTPI2PS(Vq,Qq); 364 0x3: WarnUnimpl::movntps_Mo_Vo(); 365 0x4: CVTTPS2PI(Pq,Wq); 366 0x5: CVTPS2PI(Pq,Wq); 367 0x6: UCOMISS(Vd,Wd); 368 0x7: COMISS(Vd,Wd); 369 } 370 // repe (0xF3) 371 0x4: decode OPCODE_OP_BOTTOM3 { 372 0x2: CVTSI2SS(Vd,Ed); 373 0x4: CVTTSS2SI(Gd,Wd); 374 0x5: CVTSS2SI(Gd,Wd); 375 default: UD2(); 376 } 377 // operand size (0x66) 378 0x1: decode OPCODE_OP_BOTTOM3 { 379 0x0: MOVAPD(Vo,Wo); 380 0x1: MOVAPD(Wo,Vo); 381 0x2: CVTPI2PD(Vo,Qq); 382 0x3: WarnUnimpl::movntpd_Mo_Vo(); 383 0x4: CVTTPD2PI(Pq,Wo); 384 0x5: CVTPD2PI(Pq,Wo); 385 0x6: UCOMISD(Vq,Wq); 386 0x7: COMISD(Vq,Wq); 387 } 388 // repne (0xF2) 389 0x8: decode OPCODE_OP_BOTTOM3 { 390 // The size of the V operand should be q, not dp 391 0x2: CVTSI2SD(Vdp,Edp); 392 // The size of the W operand should be q, not dp 393 0x4: CVTTSD2SI(Gdp,Wdp); 394 0x5: CVTSD2SI(Gd,Wq); 395 default: UD2(); 396 } 397 default: UD2(); 398 } 399 } 400 0x06: decode OPCODE_OP_BOTTOM3 { 401 0x0: Inst::WRMSR(); 402 0x1: Inst::RDTSC(); 403 0x2: Inst::RDMSR(); 404 0x3: rdpmc(); 405#if FULL_SYSTEM 406 0x4: sysenter(); 407#else 408 0x4: SyscallInst::sysenter('xc->syscall(Rax)', 409 IsSyscall, IsNonSpeculative, IsSerializeAfter); 410#endif 411 0x5: sysexit(); 412 0x6: Inst::UD2(); 413 0x7: getsec(); 414 } 415 0x07: decode OPCODE_OP_BOTTOM3 { 416 0x0: M5InternalError::error( 417 {{"Three byte opcode shouldn't be handled by " 418 "two_byte_opcodes.isa!"}}); 419 0x2: M5InternalError::error( 420 {{"Three byte opcode shouldn't be handled by " 421 "two_byte_opcodes.isa!"}}); 422 default: UD2(); 423 } 424 format Inst { 425 0x08: decode OPCODE_OP_BOTTOM3 { 426 0x0: CMOVO(Gv,Ev); 427 0x1: CMOVNO(Gv,Ev); 428 0x2: CMOVB(Gv,Ev); 429 0x3: CMOVNB(Gv,Ev); 430 0x4: CMOVZ(Gv,Ev); 431 0x5: CMOVNZ(Gv,Ev); 432 0x6: CMOVBE(Gv,Ev); 433 0x7: CMOVNBE(Gv,Ev); 434 } 435 0x09: decode OPCODE_OP_BOTTOM3 { 436 0x0: CMOVS(Gv,Ev); 437 0x1: CMOVNS(Gv,Ev); 438 0x2: CMOVP(Gv,Ev); 439 0x3: CMOVNP(Gv,Ev); 440 0x4: CMOVL(Gv,Ev); 441 0x5: CMOVNL(Gv,Ev); 442 0x6: CMOVLE(Gv,Ev); 443 0x7: CMOVNLE(Gv,Ev); 444 } 445 0x0A: decode LEGACY_DECODEVAL { 446 // no prefix 447 0x0: decode OPCODE_OP_BOTTOM3 { 448 0x0: MOVMSKPS(Gd,VRo); 449 0x1: SQRTPS(Vo,Wo); 450 0x2: WarnUnimpl::rqsrtps_Vo_Wo(); 451 0x3: WarnUnimpl::rcpps_Vo_Wo(); 452 0x4: ANDPS(Vo,Wo); 453 0x5: ANDNPS(Vo,Wo); 454 0x6: ORPS(Vo,Wo); 455 0x7: XORPS(Vo,Wo); 456 } 457 // repe (0xF3) 458 0x4: decode OPCODE_OP_BOTTOM3 { 459 0x1: SQRTSS(Vd,Wd); 460 0x2: WarnUnimpl::rsqrtss_Vd_Wd(); 461 0x3: WarnUnimpl::rcpss_Vd_Wd(); 462 default: UD2(); 463 } 464 // operand size (0x66) 465 0x1: decode OPCODE_OP_BOTTOM3 { 466 0x0: MOVMSKPD(Gd,VRo); 467 0x1: SQRTPD(Vo,Wo); 468 0x4: ANDPD(Vo,Wo); 469 0x5: ANDNPD(Vo,Wo); 470 0x6: ORPD(Vo,Wo); 471 0x7: XORPD(Vo,Wo); 472 default: UD2(); 473 } 474 // repne (0xF2) 475 0x8: decode OPCODE_OP_BOTTOM3 { 476 0x1: SQRTSD(Vq,Wq); 477 default: UD2(); 478 } 479 default: UD2(); 480 } 481 0x0B: decode LEGACY_DECODEVAL { 482 // no prefix 483 0x0: decode OPCODE_OP_BOTTOM3 { 484 0x0: ADDPS(Vo,Wo); 485 0x1: MULPS(Vo,Wo); 486 0x2: CVTPS2PD(Vo,Wq); 487 0x3: CVTDQ2PS(Vo,Wo); 488 0x4: SUBPS(Vo,Wo); 489 0x5: MINPS(Vo,Wo); 490 0x6: DIVPS(Vo,Wo); 491 0x7: MAXPS(Vo,Wo); 492 } 493 // repe (0xF3) 494 0x4: decode OPCODE_OP_BOTTOM3 { 495 0x0: ADDSS(Vd,Wd); 496 0x1: MULSS(Vd,Wd); 497 0x2: CVTSS2SD(Vq,Wd); 498 0x3: CVTTPS2DQ(Vo,Wo); 499 0x4: SUBSS(Vd,Wd); 500 0x5: MINSS(Vd,Wd); 501 0x6: DIVSS(Vd,Wd); 502 0x7: MAXSS(Vd,Wd); 503 } 504 // operand size (0x66) 505 0x1: decode OPCODE_OP_BOTTOM3 { 506 0x0: ADDPD(Vo,Wo); 507 0x1: MULPD(Vo,Wo); 508 0x2: CVTPD2PS(Vo,Wo); 509 0x3: CVTPS2DQ(Vo,Wo); 510 0x4: SUBPD(Vo,Wo); 511 0x5: MINPD(Vo,Wo); 512 0x6: DIVPD(Vo,Wo); 513 0x7: MAXPD(Vo,Wo); 514 } 515 // repne (0xF2) 516 0x8: decode OPCODE_OP_BOTTOM3 { 517 0x0: ADDSD(Vq,Wq); 518 0x1: MULSD(Vq,Wq); 519 0x2: CVTSD2SS(Vd,Wq); 520 0x4: SUBSD(Vq,Wq); 521 0x5: MINSD(Vq,Wq); 522 0x6: DIVSD(Vq,Wq); 523 0x7: MAXSD(Vq,Wq); 524 default: UD2(); 525 } 526 default: UD2(); 527 } 528 0x0C: decode LEGACY_DECODEVAL { 529 // no prefix 530 0x0: decode OPCODE_OP_BOTTOM3 { 531 0x0: PUNPCKLBW(Pq,Qd); 532 0x1: PUNPCKLWD(Pq,Qd); 533 0x2: PUNPCKLDQ(Pq,Qd); 534 0x3: PACKSSWB(Pq,Qq); 535 0x4: PCMPGTB(Pq,Qq); 536 0x5: PCMPGTW(Pq,Qq); 537 0x6: PCMPGTD(Pq,Qq); 538 0x7: PACKUSWB(Pq,Qq); 539 } 540 // operand size (0x66) 541 0x1: decode OPCODE_OP_BOTTOM3 { 542 0x0: PUNPCKLBW(Vo,Wq); 543 0x1: PUNPCKLWD(Vo,Wq); 544 0x2: PUNPCKLDQ(Vo,Wq); 545 0x3: PACKSSWB(Vo,Wo); 546 0x4: PCMPGTB(Vo,Wo); 547 0x5: PCMPGTW(Vo,Wo); 548 0x6: PCMPGTD(Vo,Wo); 549 0x7: PACKUSWB(Vo,Wo); 550 } 551 default: UD2(); 552 } 553 0x0D: decode LEGACY_DECODEVAL { 554 // no prefix 555 0x0: decode OPCODE_OP_BOTTOM3 { 556 0x0: PUNPCKHBW(Pq,Qq); 557 0x1: PUNPCKHWD(Pq,Qq); 558 0x2: PUNPCKHDQ(Pq,Qq); 559 0x3: PACKSSDW(Pq,Qq); 560 0x6: MOVD(Pq,Edp); 561 0x7: MOVQ(Pq,Qq); 562 default: UD2(); 563 } 564 // repe (0xF3) 565 0x4: decode OPCODE_OP_BOTTOM3 { 566 0x7: MOVDQU(Vo,Wo); 567 default: UD2(); 568 } 569 // operand size (0x66) 570 0x1: decode OPCODE_OP_BOTTOM3 { 571 0x0: PUNPCKHBW(Vo,Wo); 572 0x1: PUNPCKHWD(Vo,Wo); 573 0x2: PUNPCKHDQ(Vo,Wo); 574 0x3: PACKSSDW(Vo,Wo); 575 0x4: PUNPCKLQDQ(Vo,Wq); 576 0x5: PUNPCKHQDQ(Vo,Wq); 577 0x6: MOVD(Vo,Edp); 578 0x7: MOVDQA(Vo,Wo); 579 } 580 default: UD2(); 581 } 582 0x0E: decode LEGACY_DECODEVAL { 583 // no prefix 584 0x0: decode OPCODE_OP_BOTTOM3 { 585 0x0: PSHUFW(Pq,Qq,Ib); 586 //0x1: group12_pshimw(); 587 0x1: decode MODRM_REG { 588 0x2: PSRLW(PRq,Ib); 589 0x4: PSRAW(PRq,Ib); 590 0x6: PSLLW(PRq,Ib); 591 default: UD2(); 592 } 593 //0x2: group13_pshimd(); 594 0x2: decode MODRM_REG { 595 0x2: PSRLD(PRq,Ib); 596 0x4: PSRAD(PRq,Ib); 597 0x6: PSLLD(PRq,Ib); 598 default: UD2(); 599 } 600 //0x3: group14_pshimq(); 601 0x3: decode MODRM_REG { 602 0x2: PSRLQ(PRq,Ib); 603 0x6: PSLLQ(PRq,Ib); 604 default: Inst::UD2(); 605 } 606 0x4: Inst::PCMPEQB(Pq,Qq); 607 0x5: Inst::PCMPEQW(Pq,Qq); 608 0x6: Inst::PCMPEQD(Pq,Qq); 609 0x7: WarnUnimpl::emms(); 610 } 611 // repe (0xF3) 612 0x4: decode OPCODE_OP_BOTTOM3 { 613 0x0: PSHUFHW(Vo,Wo,Ib); 614 default: UD2(); 615 } 616 // operand size (0x66) 617 0x1: decode OPCODE_OP_BOTTOM3 { 618 0x0: PSHUFD(Vo,Wo,Ib); 619 //0x1: group12_pshimw(); 620 0x1: decode MODRM_REG { 621 0x2: PSRLW(VRo,Ib); 622 0x4: PSRAW(VRo,Ib); 623 0x6: PSLLW(VRo,Ib); 624 } 625 //0x2: group13_pshimd(); 626 0x2: decode MODRM_REG { 627 0x2: PSRLD(VRo,Ib); 628 0x4: PSRAD(VRo,Ib); 629 0x6: PSLLD(VRo,Ib); 630 default: UD2(); 631 } 632 //0x3: group14_pshimq(); 633 0x3: decode MODRM_REG { 634 0x2: PSRLQ(VRo,Ib); 635 0x3: PSRLDQ(VRo,Ib); 636 0x6: PSLLQ(VRo,Ib); 637 0x7: PSLLDQ(VRo,Ib); 638 default: UD2(); 639 } 640 0x4: PCMPEQB(Vo,Wo); 641 0x5: PCMPEQW(Vo,Wo); 642 0x6: PCMPEQD(Vo,Wo); 643 default: UD2(); 644 } 645 // repne (0xF2) 646 0x8: decode OPCODE_OP_BOTTOM3 { 647 0x0: PSHUFLW(Vo,Wo,Ib); 648 default: UD2(); 649 } 650 default: UD2(); 651 } 652 0x0F: decode LEGACY_DECODEVAL { 653 // no prefix 654 0x0: decode OPCODE_OP_BOTTOM3 { 655 0x0: WarnUnimpl::vmread_Edp_Gdp(); 656 0x1: WarnUnimpl::vmwrite_Gdp_Edp(); 657 0x6: MOVD(Edp,Pdp); 658 0x7: MOVQ(Qq,Pq); 659 default: UD2(); 660 } 661 // repe (0xF3) 662 0x4: decode OPCODE_OP_BOTTOM3 { 663 0x6: MOVQ(Vq,Wq); 664 0x7: MOVDQU(Wo,Vo); 665 default: UD2(); 666 } 667 // operand size (0x66) 668 0x1: decode OPCODE_OP_BOTTOM3 { 669 0x4: HADDPD(Vo,Wo); 670 0x5: WarnUnimpl::hsubpd_Vo_Wo(); 671 0x6: MOVD(Edp,Vd); 672 0x7: MOVDQA(Wo,Vo); 673 default: UD2(); 674 } 675 // repne (0xF2) 676 0x8: decode OPCODE_OP_BOTTOM3 { 677 0x4: WarnUnimpl::haddps_Vo_Wo(); 678 0x5: WarnUnimpl::hsubps_Vo_Wo(); 679 default: UD2(); 680 } 681 default: UD2(); 682 } 683 0x10: decode OPCODE_OP_BOTTOM3 { 684 0x0: JO(Jz); 685 0x1: JNO(Jz); 686 0x2: JB(Jz); 687 0x3: JNB(Jz); 688 0x4: JZ(Jz); 689 0x5: JNZ(Jz); 690 0x6: JBE(Jz); 691 0x7: JNBE(Jz); 692 } 693 0x11: decode OPCODE_OP_BOTTOM3 { 694 0x0: JS(Jz); 695 0x1: JNS(Jz); 696 0x2: JP(Jz); 697 0x3: JNP(Jz); 698 0x4: JL(Jz); 699 0x5: JNL(Jz); 700 0x6: JLE(Jz); 701 0x7: JNLE(Jz); 702 } 703 0x12: decode OPCODE_OP_BOTTOM3 { 704 0x0: SETO(Eb); 705 0x1: SETNO(Eb); 706 0x2: SETB(Eb); 707 0x3: SETNB(Eb); 708 0x4: SETZ(Eb); 709 0x5: SETNZ(Eb); 710 0x6: SETBE(Eb); 711 0x7: SETNBE(Eb); 712 } 713 0x13: decode OPCODE_OP_BOTTOM3 { 714 0x0: SETS(Eb); 715 0x1: SETNS(Eb); 716 0x2: SETP(Eb); 717 0x3: SETNP(Eb); 718 0x4: SETL(Eb); 719 0x5: SETNL(Eb); 720 0x6: SETLE(Eb); 721 0x7: SETNLE(Eb); 722 } 723 } 724 0x14: decode OPCODE_OP_BOTTOM3 { 725 0x0: push_fs(); 726 0x1: pop_fs(); 727 0x2: CPUIDInst::CPUID({{ 728 CpuidResult result; 729 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0), 730 bits(Rcx, 31, 0), result); 731 Rax = result.rax; 732 Rbx = result.rbx; 733 Rcx = result.rcx; 734 Rdx = result.rdx; 735 }}); 736 0x3: Inst::BT(Ev,Gv); 737 0x4: Inst::SHLD(Ev,Gv,Ib); 738 0x5: Inst::SHLD(Ev,Gv); 739 default: Inst::UD2(); 740 } 741 0x15: decode OPCODE_OP_BOTTOM3 { 742 0x0: push_gs(); 743 0x1: pop_gs(); 744 0x2: rsm_smm(); 745 0x3: Inst::BTS(Ev,Gv); 746 0x4: Inst::SHRD(Ev,Gv,Ib); 747 0x5: Inst::SHRD(Ev,Gv); 748 //0x6: group15(); 749 0x6: decode MODRM_MOD { 750 0x3: decode MODRM_REG { 751 0x5: BasicOperate::LFENCE( 752 {{/*Nothing*/}}, IsReadBarrier); 753 0x6: BasicOperate::MFENCE( 754 {{/*Nothing*/}}, IsMemBarrier); 755 0x7: BasicOperate::SFENCE( 756 {{/*Nothing*/}}, IsWriteBarrier); 757 default: Inst::UD2(); 758 } 759 default: decode MODRM_REG { 760 0x0: fxsave(); 761 0x1: fxrstor(); 762 0x2: Inst::LDMXCSR(Md); 763 0x3: Inst::STMXCSR(Md); 764 0x4: xsave(); 765 0x5: xrstor(); 766 0x6: Inst::UD2(); 767 0x7: clflush(); 768 } 769 } 770 0x7: Inst::IMUL(Gv,Ev); 771 } 772 format Inst { 773 0x16: decode OPCODE_OP_BOTTOM3 { 774 0x0: CMPXCHG(Eb,Gb); 775 0x1: CMPXCHG(Ev,Gv); 776 0x2: WarnUnimpl::lss_Gz_Mp(); 777 0x3: BTR(Ev,Gv); 778 0x4: WarnUnimpl::lfs_Gz_Mp(); 779 0x5: WarnUnimpl::lgs_Gz_Mp(); 780 //The size of the second operand in these instructions 781 //should really be "b" or "w", but it's set to v in order 782 //to have a consistent register size. This shouldn't 783 //affect behavior. 784 0x6: MOVZX_B(Gv,Ev); 785 0x7: MOVZX_W(Gv,Ev); 786 } 787 0x17: decode OPCODE_OP_BOTTOM3 { 788 0x0: decode LEGACY_REP { 789 0x0: WarnUnimpl::jmpe_Jz(); 790 0x1: WarnUnimpl::popcnt_Gv_Ev(); 791 } 792 //0x1: group10_UD2(); 793 0x1: UD2(); 794 //0x2: group8_Ev_Ib(); 795 0x2: decode MODRM_REG { 796 0x4: BT(Ev,Ib); 797 0x5: BTS(Ev,Ib); 798 0x6: BTR(Ev,Ib); 799 0x7: BTC(Ev,Ib); 800 default: UD2(); 801 } 802 0x3: BTC(Ev,Gv); 803 0x4: BSF(Gv,Ev); 804 0x5: BSR(Gv,Ev); 805 //The size of the second operand in these instructions 806 //should really be "b" or "w", but it's set to v in order 807 //to have a consistent register size. This shouldn't 808 //affect behavior. 809 0x6: MOVSX_B(Gv,Ev); 810 0x7: MOVSX_W(Gv,Ev); 811 } 812 0x18: decode OPCODE_OP_BOTTOM3 { 813 0x0: XADD(Eb,Gb); 814 0x1: XADD(Ev,Gv); 815 //0x7: group9(); 816 0x7: decode MODRM_REG { 817 //Also CMPXCHG16B 818 0x1: CMPXCHG8B(Mdp); 819 0x6: decode LEGACY_OP { 820 0x1: WarnUnimpl::vmclear_Mq(); 821 default: decode LEGACY_REP { 822 0x1: WarnUnimpl::vmxon_Mq(); 823 0x0: WarnUnimpl::vmptrld_Mq(); 824 } 825 } 826 0x7: WarnUnimpl::vmptrst_Mq(); 827 default: UD2(); 828 } 829 default: decode LEGACY_DECODEVAL { 830 // no prefix 831 0x0: decode OPCODE_OP_BOTTOM3 { 832 0x2: CMPPS(Vo,Wo,Ib); 833 0x3: MOVNTI(Mdp,Gdp); 834 0x4: PINSRW(Pq,Ew,Ib); 835 0x5: PEXTRW(Gd,PRq,Ib); 836 0x6: SHUFPS(Vps,Wps,Ib); 837 } 838 // repe (0xF3) 839 0x4: decode OPCODE_OP_BOTTOM3 { 840 0x2: CMPSS(Vd,Wd,Ib); 841 default: UD2(); 842 } 843 // operand size (0x66) 844 0x1: decode OPCODE_OP_BOTTOM3 { 845 0x2: CMPPD(Vo,Wo,Ib); 846 0x4: PINSRW(Vdw,Ew,Ib); 847 0x5: PEXTRW(Gd,VRdq,Ib); 848 0x6: SHUFPD(Vpd,Wpd,Ib); 849 default: UD2(); 850 } 851 // repne (0xF2) 852 0x8: decode OPCODE_OP_BOTTOM3 { 853 0x2: CMPSD(Vq,Wq,Ib); 854 default: UD2(); 855 } 856 default: UD2(); 857 } 858 } 859 0x19: decode OPSIZE { 860 4: BSWAP_D(Bd); 861 8: BSWAP_Q(Bq); 862 default: UD2(); 863 } 864 0x1A: decode LEGACY_DECODEVAL { 865 // no prefix 866 0x0: decode OPCODE_OP_BOTTOM3 { 867 0x1: PSRLW(Pq,Qq); 868 0x2: PSRLD(Pq,Qq); 869 0x3: PSRLQ(Pq,Qq); 870 0x4: PADDQ(Pq,Qq); 871 0x5: PMULLW(Pq,Qq); 872 0x7: PMOVMSKB(Gd,PRq); 873 default: UD2(); 874 } 875 // repe (0xF3) 876 0x4: decode OPCODE_OP_BOTTOM3 { 877 0x6: MOVQ2DQ(Vo,PRq); 878 default: UD2(); 879 } 880 // operand size (0x66) 881 0x1: decode OPCODE_OP_BOTTOM3 { 882 0x0: WarnUnimpl::addsubpd_Vo_Wo(); 883 0x1: PSRLW(Vo,Wo); 884 0x2: PSRLD(Vo,Wo); 885 0x3: PSRLQ(Vo,Wo); 886 0x4: PADDQ(Vo,Wo); 887 0x5: PMULLW(Vo,Wo); 888 0x6: MOVQ(Wq,Vq); 889 0x7: PMOVMSKB(Gd,VRo); 890 } 891 // repne (0xF2) 892 0x8: decode OPCODE_OP_BOTTOM3 { 893 0x0: WarnUnimpl::addsubps_Vo_Wo(); 894 0x6: MOVDQ2Q(Pq,VRq); 895 default: UD2(); 896 } 897 default: UD2(); 898 } 899 0x1B: decode LEGACY_DECODEVAL { 900 // no prefix 901 0x0: decode OPCODE_OP_BOTTOM3 { 902 0x0: PSUBUSB(Pq,Qq); 903 0x1: PSUBUSW(Pq,Qq); 904 0x2: PMINUB(Pq,Qq); 905 0x3: PAND(Pq,Qq); 906 0x4: PADDUSB(Pq,Qq); 907 0x5: PADDUSW(Pq,Qq); 908 0x6: PMAXUB(Pq,Qq); 909 0x7: PANDN(Pq,Qq); 910 } 911 // operand size (0x66) 912 0x1: decode OPCODE_OP_BOTTOM3 { 913 0x0: PSUBUSB(Vo,Wo); 914 0x1: PSUBUSW(Vo,Wo); 915 0x2: PMINUB(Vo,Wo); 916 0x3: PAND(Vo,Wo); 917 0x4: PADDUSB(Vo,Wo); 918 0x5: PADDUSW(Vo,Wo); 919 0x6: PMAXUB(Vo,Wo); 920 0x7: PANDN(Vo,Wo); 921 } 922 default: UD2(); 923 } 924 0x1C: decode LEGACY_DECODEVAL { 925 // no prefix 926 0x0: decode OPCODE_OP_BOTTOM3 { 927 0x0: PAVGB(Pq,Qq); 928 0x1: PSRAW(Pq,Qq); 929 0x2: PSRAD(Pq,Qq); 930 0x3: PAVGW(Pq,Qq); 931 0x4: PMULHUW(Pq,Qq); 932 0x5: PMULHW(Pq,Qq); 933 0x7: WarnUnimpl::movntq_Mq_Pq(); 934 default: UD2(); 935 } 936 // repe (0xF3) 937 0x4: decode OPCODE_OP_BOTTOM3 { 938 0x6: CVTDQ2PD(Vo,Wq); 939 default: UD2(); 940 } 941 // operand size (0x66) 942 0x1: decode OPCODE_OP_BOTTOM3 { 943 0x0: PAVGB(Vo,Wo); 944 0x1: PSRAW(Vo,Wo); 945 0x2: PSRAD(Vo,Wo); 946 0x3: PAVGW(Vo,Wo); 947 0x4: PMULHUW(Vo,Wo); 948 0x5: PMULHW(Vo,Wo); 949 0x6: CVTTPD2DQ(Vo,Wo); 950 0x7: WarnUnimpl::movntdq_Mo_Vo(); 951 } 952 // repne (0xF2) 953 0x8: decode OPCODE_OP_BOTTOM3 { 954 0x6: CVTPD2DQ(Vo,Wo); 955 default: UD2(); 956 } 957 default: UD2(); 958 } 959 0x1D: decode LEGACY_DECODEVAL { 960 // no prefix 961 0x0: decode OPCODE_OP_BOTTOM3 { 962 0x0: PSUBSB(Pq,Qq); 963 0x1: PSUBSW(Pq,Qq); 964 0x2: PMINSW(Pq,Qq); 965 0x3: POR(Pq,Qq); 966 0x4: PADDSB(Pq,Qq); 967 0x5: PADDSW(Pq,Qq); 968 0x6: PMAXSW(Pq,Qq); 969 0x7: PXOR(Pq,Qq); 970 } 971 // operand size (0x66) 972 0x1: decode OPCODE_OP_BOTTOM3 { 973 0x0: PSUBSB(Vo,Wo); 974 0x1: PSUBSW(Vo,Wo); 975 0x2: PMINSW(Vo,Wo); 976 0x3: POR(Vo,Wo); 977 0x4: PADDSB(Vo,Wo); 978 0x5: PADDSW(Vo,Wo); 979 0x6: PMAXSW(Vo,Wo); 980 0x7: PXOR(Vo,Wo); 981 } 982 default: UD2(); 983 } 984 0x1E: decode LEGACY_DECODEVAL { 985 // no prefix 986 0x0: decode OPCODE_OP_BOTTOM3 { 987 0x1: PSLLW(Pq,Qq); 988 0x2: PSLLD(Pq,Qq); 989 0x3: PSLLQ(Pq,Qq); 990 0x4: PMULUDQ(Pq,Qq); 991 0x5: PMADDWD(Pq,Qq); 992 0x6: PSADBW(Pq,Qq); 993 0x7: MASKMOVQ(Pq,PRq); 994 default: UD2(); 995 } 996 // operand size (0x66) 997 0x1: decode OPCODE_OP_BOTTOM3 { 998 0x1: PSLLW(Vo,Wo); 999 0x2: PSLLD(Vo,Wo); 1000 0x3: PSLLQ(Vo,Wo); 1001 0x4: PMULUDQ(Vo,Wo); 1002 0x5: PMADDWD(Vo,Wo); 1003 0x6: PSADBW(Vo,Wo); 1004 0x7: MASKMOVDQU(Vo,VRo); 1005 default: UD2(); 1006 } 1007 // repne (0xF2) 1008 0x8: decode OPCODE_OP_BOTTOM3 { 1009 0x0: WarnUnimpl::lddqu_Vo_Mo(); 1010 default: UD2(); 1011 } 1012 default: UD2(); 1013 } 1014 0x1F: decode LEGACY_DECODEVAL { 1015 // no prefix 1016 0x0: decode OPCODE_OP_BOTTOM3 { 1017 0x0: PSUBB(Pq,Qq); 1018 0x1: PSUBW(Pq,Qq); 1019 0x2: PSUBD(Pq,Qq); 1020 0x3: PSUBQ(Pq,Qq); 1021 0x4: PADDB(Pq,Qq); 1022 0x5: PADDW(Pq,Qq); 1023 0x6: PADDD(Pq,Qq); 1024 0x7: UD2(); 1025 } 1026 // operand size (0x66) 1027 0x1: decode OPCODE_OP_BOTTOM3 { 1028 0x0: PSUBB(Vo,Wo); 1029 0x1: PSUBW(Vo,Wo); 1030 0x2: PSUBD(Vo,Wo); 1031 0x3: PSUBQ(Vo,Wo); 1032 0x4: PADDB(Vo,Wo); 1033 0x5: PADDW(Vo,Wo); 1034 0x6: PADDD(Vo,Wo); 1035 0x7: UD2(); 1036 } 1037 default: UD2(); 1038 } 1039 } 1040 default: FailUnimpl::twoByteOps(); 1041 } 1042 } 1043 default: M5InternalError::error( 1044 {{"Unexpected first opcode byte in two byte opcode!"}}); 1045} 1046