two_byte_opcodes.isa revision 6706:ea20065f6614
1// Copyright (c) 2008 The Regents of The University of Michigan 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer; 8// redistributions in binary form must reproduce the above copyright 9// notice, this list of conditions and the following disclaimer in the 10// documentation and/or other materials provided with the distribution; 11// neither the name of the copyright holders nor the names of its 12// contributors may be used to endorse or promote products derived from 13// this software without specific prior written permission. 14// 15// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26// 27// Authors: Gabe Black 28 29// Copyright (c) 2007-2008 The Hewlett-Packard Development Company 30// All rights reserved. 31// 32// Redistribution and use of this software in source and binary forms, 33// with or without modification, are permitted provided that the 34// following conditions are met: 35// 36// The software must be used only for Non-Commercial Use which means any 37// use which is NOT directed to receiving any direct monetary 38// compensation for, or commercial advantage from such use. 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Neither the name of 58// the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 59// contributors may be used to endorse or promote products derived from 60// this software without specific prior written permission. No right of 61// sublicense is granted herewith. Derivatives of the software and 62// output created using the software may be prepared, but only for 63// Non-Commercial Uses. Derivatives of the software may be shared with 64// others provided: (i) the others agree to abide by the list of 65// conditions herein which includes the Non-Commercial Use restrictions; 66// and (ii) such Derivatives of the software include the above copyright 67// notice to acknowledge the contribution from this software where 68// applicable, this list of conditions and the disclaimer below. 69// 70// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 71// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 72// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 73// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 74// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 75// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 76// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 77// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 78// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 79// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 80// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 81// 82// Authors: Gabe Black 83 84//////////////////////////////////////////////////////////////////// 85// 86// Decode the two byte opcodes 87// 880x2: decode OPCODE_PREFIXA { 89 0x0F: decode OPCODE_OP_TOP5 { 90 format WarnUnimpl { 91 0x00: decode OPCODE_OP_BOTTOM3 { 92 //0x00: group6(); 93 0x00: decode MODRM_REG { 94 0x0: sldt_Mw_or_Rv(); 95 0x1: str_Mw_or_Rv(); 96 0x2: Inst::LLDT(Ew); 97 0x3: Inst::LTR(Ew); 98 0x4: verr_Mw_or_Rv(); 99 0x5: verw_Mw_or_Rv(); 100 //0x6: jmpe_Ev(); // IA-64 101 default: Inst::UD2(); 102 } 103 //0x01: group7(); // Ugly, ugly, ugly... 104 0x01: decode MODRM_REG { 105 0x0: decode MODRM_MOD { 106 0x3: decode MODRM_RM { 107 0x1: vmcall(); 108 0x2: vmlaunch(); 109 0x3: vmresume(); 110 0x4: vmxoff(); 111 default: Inst::UD2(); 112 } 113 default: sgdt_Ms(); 114 } 115 0x1: decode MODRM_MOD { 116 0x3: decode MODRM_RM { 117 0x0: monitor(); 118 0x1: mwait(); 119 default: Inst::UD2(); 120 } 121 default: sidt_Ms(); 122 } 123 0x2: decode MODRM_MOD { 124 0x3: decode MODRM_RM { 125 0x0: xgetbv(); 126 0x1: xsetbv(); 127 } 128 default: decode MODE_SUBMODE { 129 0x0: Inst::LGDT(M); 130 default: decode OPSIZE { 131 // 16 bit operand sizes are special, but only 132 // in legacy and compatability modes. 133 0x2: Inst::LGDT_16(M); 134 default: Inst::LGDT(M); 135 } 136 } 137 } 138 0x3: decode MODRM_MOD { 139 0x3: decode MODRM_RM { 140 0x0: vmrun(); 141 0x1: vmmcall(); 142 0x2: vmload(); 143 0x3: vmsave(); 144 0x4: stgi(); 145 0x5: clgi(); 146 0x6: skinit(); 147 0x7: invlpga(); 148 } 149 default: decode MODE_SUBMODE { 150 0x0: Inst::LIDT(M); 151 default: decode OPSIZE { 152 // 16 bit operand sizes are special, but only 153 // in legacy and compatability modes. 154 0x2: Inst::LIDT_16(M); 155 default: Inst::LIDT(M); 156 } 157 } 158 } 159 0x4: decode MODRM_MOD { 160 0x3: Inst::SMSW(Rv); 161 default: Inst::SMSW(Mw); 162 } 163 0x6: Inst::LMSW(Ew); 164 0x7: decode MODRM_MOD { 165 0x3: decode MODRM_RM { 166 0x0: Inst::SWAPGS(); 167 0x1: rdtscp(); 168 default: Inst::UD2(); 169 } 170 default: Inst::INVLPG(M); 171 } 172 } 173 0x02: lar_Gv_Ew(); 174 0x03: lsl_Gv_Ew(); 175 // sandpile.org doesn't seem to know what this is...? We'll 176 // use it for pseudo instructions. We've got 16 bits of space 177 // to play with so there can be quite a few pseudo 178 // instructions. 179 //0x04: loadall_or_reset_or_hang(); 180 0x4: decode IMMEDIATE { 181 format BasicOperate { 182#if FULL_SYSTEM 183 0x00: m5arm({{ 184 PseudoInst::arm(xc->tcBase()); 185 }}, IsNonSpeculative); 186 0x01: m5quiesce({{ 187 PseudoInst::quiesce(xc->tcBase()); 188 }}, IsNonSpeculative); 189 0x02: m5quiesceNs({{ 190 PseudoInst::quiesceNs(xc->tcBase(), Rdi); 191 }}, IsNonSpeculative); 192 0x03: m5quiesceCycle({{ 193 PseudoInst::quiesceCycles(xc->tcBase(), Rdi); 194 }}, IsNonSpeculative); 195 0x04: m5quiesceTime({{ 196 Rax = PseudoInst::quiesceTime(xc->tcBase()); 197 }}, IsNonSpeculative); 198#endif 199 0x07: m5rpns({{ 200 Rax = PseudoInst::rpns(xc->tcBase()); 201 }}, IsNonSpeculative); 202 0x21: m5exit({{ 203 PseudoInst::m5exit(xc->tcBase(), Rdi); 204 }}, IsNonSpeculative); 205#if FULL_SYSTEM 206 0x30: m5initparam({{ 207 Rax = xc->tcBase()->getCpuPtr()-> 208 system->init_param; 209 }}, IsNonSpeculative); 210 0x31: m5loadsymbol({{ 211 PseudoInst::loadsymbol(xc->tcBase()); 212 }}, IsNonSpeculative); 213#endif 214 0x40: m5resetstats({{ 215 PseudoInst::resetstats(xc->tcBase(), Rdi, Rsi); 216 }}, IsNonSpeculative); 217 0x41: m5dumpstats({{ 218 PseudoInst::dumpstats(xc->tcBase(), Rdi, Rsi); 219 }}, IsNonSpeculative); 220 0x42: m5dumpresetstats({{ 221 PseudoInst::dumpresetstats(xc->tcBase(), Rdi, Rsi); 222 }}, IsNonSpeculative); 223 0x43: m5checkpoint({{ 224 PseudoInst::m5checkpoint(xc->tcBase(), Rdi, Rsi); 225 }}, IsNonSpeculative); 226#if FULL_SYSTEM 227 0x50: m5readfile({{ 228 Rax = PseudoInst::readfile( 229 xc->tcBase(), Rdi, Rsi, Rdx); 230 }}, IsNonSpeculative); 231#endif 232 0x51: m5debugbreak({{ 233 PseudoInst::debugbreak(xc->tcBase()); 234 }}, IsNonSpeculative); 235 0x52: m5switchcpu({{ 236 PseudoInst::switchcpu(xc->tcBase()); 237 }}, IsNonSpeculative); 238#if FULL_SYSTEM 239 0x53: m5addsymbol({{ 240 PseudoInst::addsymbol(xc->tcBase(), Rdi, Rsi); 241 }}, IsNonSpeculative); 242#endif 243 0x54: m5panic({{ 244 panic("M5 panic instruction called at pc=%#x.\n", 245 xc->readPC()); 246 }}, IsNonSpeculative); 247 0x55: m5reserved1({{ 248 warn("M5 reserved opcode 1 ignored.\n"); 249 }}, IsNonSpeculative); 250 0x56: m5reserved2({{ 251 warn("M5 reserved opcode 2 ignored.\n"); 252 }}, IsNonSpeculative); 253 0x57: m5reserved3({{ 254 warn("M5 reserved opcode 3 ignored.\n"); 255 }}, IsNonSpeculative); 256 0x58: m5reserved4({{ 257 warn("M5 reserved opcode 4 ignored.\n"); 258 }}, IsNonSpeculative); 259 0x59: m5reserved5({{ 260 warn("M5 reserved opcode 5 ignored.\n"); 261 }}, IsNonSpeculative); 262 default: Inst::UD2(); 263 } 264 } 265#if FULL_SYSTEM 266 0x05: decode MODE_MODE { 267 0x0: decode MODE_SUBMODE { 268 0x0: Inst::SYSCALL_64(); 269 0x1: Inst::SYSCALL_COMPAT(); 270 } 271 0x1: Inst::SYSCALL_LEGACY(); 272 } 273#else 274 0x05: SyscallInst::syscall('xc->syscall(Rax)', IsSyscall); 275#endif 276 0x06: Inst::CLTS(); 277 0x07: decode MODE_SUBMODE { 278 0x0: decode OPSIZE { 279 // Return to 64 bit mode. 280 0x8: Inst::SYSRET_TO_64(); 281 // Return to compatibility mode. 282 default: Inst::SYSRET_TO_COMPAT(); 283 } 284 default: Inst::SYSRET_NON_64(); 285 } 286 } 287 0x01: decode OPCODE_OP_BOTTOM3 { 288 0x0: invd(); 289 0x1: wbinvd(); 290 0x2: Inst::UD2(); 291 0x3: Inst::UD2(); 292 0x4: Inst::UD2(); 293 0x5: Inst::PREFETCH(Mb); 294 0x6: FailUnimpl::femms(); 295 0x7: decode IMMEDIATE { 296 0x0C: pi2fw_Pq_Qq(); 297 0x0D: pi2fd_Pq_Qq(); 298 0x1C: pf2iw_Pq_Qq(); 299 0x1D: pf2id_Pq_Qq(); 300 0x8A: pfnacc_Pq_Qq(); 301 0x8E: pfpnacc_Pq_Qq(); 302 0x90: pfcmpge_Pq_Qq(); 303 0x94: pfmin_Pq_Qq(); 304 0x96: pfrcp_Pq_Qq(); 305 0x97: pfrsqrt_Pq_Qq(); 306 0x9A: Inst::PFSUB(Pq,Qq); 307 0x9E: pfadd_Pq_Qq(); 308 0xA0: pfcmpgt_Pq_Qq(); 309 0xA4: pfmax_Pq_Qq(); 310 0xA6: pfrcpit1_Pq_Qq(); 311 0xA7: pfrsqit1_Pq_Qq(); 312 0xAA: Inst::PFSUBR(Pq,Qq); 313 0xAE: pfacc_Pq_Qq(); 314 0xB0: pfcmpeq_Pq_Qq(); 315 0xB4: Inst::PFMUL(Pq,Qq); 316 0xB6: pfrcpit2_Pq_Qq(); 317 0xB7: Inst::PMULHRW(Pq,Qq); 318 0xBB: pswapd_Pq_Qq(); 319 0xBF: pavgusb_Pq_Qq(); 320 default: Inst::UD2(); 321 } 322 } 323 format Inst{ 324 0x02: decode LEGACY_DECODEVAL { 325 // no prefix 326 0x0: decode OPCODE_OP_BOTTOM3 { 327 0x0: MOVUPS(Vo,Wo); 328 0x1: MOVUPS(Wo,Vo); 329 0x2: decode MODRM_MOD { 330 0x3: MOVHLPS(Vps,VRq); 331 default: MOVLPS(Vps,Mq); 332 } 333 0x3: MOVLPS(Mq,Vps); 334 0x4: UNPCKLPS(Vps,Wq); 335 0x5: UNPCKHPS(Vps,Wq); 336 0x6: decode MODRM_MOD { 337 0x3: MOVLHPS(Vps,VRq); 338 default: MOVHPS(Vps,Mq); 339 } 340 0x7: MOVHPS(Mq,Vq); 341 } 342 // repe (0xF3) 343 0x4: decode OPCODE_OP_BOTTOM3 { 344 0x0: MOVSS(Vd,Wd); 345 0x1: MOVSS(Wd,Vd); 346 0x2: WarnUnimpl::movsldup_Vo_Wo(); 347 0x6: WarnUnimpl::movshdup_Vo_Wo(); 348 default: UD2(); 349 } 350 // operand size (0x66) 351 0x1: decode OPCODE_OP_BOTTOM3 { 352 0x0: MOVUPD(Vo,Wo); 353 0x1: MOVUPD(Wo,Vo); 354 0x2: MOVLPD(Vq,Mq); 355 0x3: MOVLPD(Mq,Vq); 356 0x4: UNPCKLPD(Vo,Wq); 357 0x5: UNPCKHPD(Vo,Wo); 358 0x6: MOVHPD(Vq,Mq); 359 0x7: MOVHPD(Mq,Vq); 360 } 361 // repne (0xF2) 362 0x8: decode OPCODE_OP_BOTTOM3 { 363 0x0: MOVSD(Vq,Wq); 364 0x1: MOVSD(Wq,Vq); 365 0x2: MOVDDUP(Vo,Wq); 366 default: UD2(); 367 } 368 default: UD2(); 369 } 370 0x03: decode OPCODE_OP_BOTTOM3 { 371 //group16(); 372 0x0: decode MODRM_REG { 373 0x0: WarnUnimpl::prefetch_nta(); 374 0x1: PREFETCH_T0(Mb); 375 0x2: WarnUnimpl::prefetch_t1(); 376 0x3: WarnUnimpl::prefetch_t2(); 377 default: HINT_NOP(); 378 } 379 0x1: HINT_NOP(); 380 0x2: HINT_NOP(); 381 0x3: HINT_NOP(); 382 0x4: HINT_NOP(); 383 0x5: HINT_NOP(); 384 0x6: HINT_NOP(); 385 0x7: HINT_NOP(); 386 } 387 0x04: decode LEGACY_DECODEVAL { 388 // no prefix 389 0x0: decode OPCODE_OP_BOTTOM3 { 390 0x0: MOV(Rd,Cd); 391 0x1: MOV(Rd,Dd); 392 0x2: MOV(Cd,Rd); 393 0x3: MOV(Dd,Rd); 394 default: UD2(); 395 } 396 default: UD2(); 397 } 398 0x05: decode LEGACY_DECODEVAL { 399 // no prefix 400 0x0: decode OPCODE_OP_BOTTOM3 { 401 //These moves should really use size o (octword), but 402 //because they are split in two, they use q (quadword). 403 0x0: MOVAPS(Vq,Wq); 404 0x1: MOVAPS(Wq,Vq); 405 0x2: CVTPI2PS(Vq,Qq); 406 0x3: WarnUnimpl::movntps_Mo_Vo(); 407 0x4: CVTTPS2PI(Pq,Wq); 408 0x5: CVTPS2PI(Pq,Wq); 409 0x6: UCOMISS(Vd,Wd); 410 0x7: COMISS(Vd,Wd); 411 } 412 // repe (0xF3) 413 0x4: decode OPCODE_OP_BOTTOM3 { 414 0x2: CVTSI2SS(Vd,Ed); 415 0x4: CVTTSS2SI(Gd,Wd); 416 0x5: CVTSS2SI(Gd,Wd); 417 default: UD2(); 418 } 419 // operand size (0x66) 420 0x1: decode OPCODE_OP_BOTTOM3 { 421 0x0: MOVAPD(Vo,Wo); 422 0x1: MOVAPD(Wo,Vo); 423 0x2: CVTPI2PD(Vo,Qq); 424 0x3: WarnUnimpl::movntpd_Mo_Vo(); 425 0x4: CVTTPD2PI(Pq,Wo); 426 0x5: CVTPD2PI(Pq,Wo); 427 0x6: UCOMISD(Vq,Wq); 428 0x7: COMISD(Vq,Wq); 429 } 430 // repne (0xF2) 431 0x8: decode OPCODE_OP_BOTTOM3 { 432 // The size of the V operand should be q, not dp 433 0x2: CVTSI2SD(Vdp,Edp); 434 // The size of the W operand should be q, not dp 435 0x4: CVTTSD2SI(Gdp,Wdp); 436 0x5: CVTSD2SI(Gd,Wq); 437 default: UD2(); 438 } 439 default: UD2(); 440 } 441 } 442 0x06: decode OPCODE_OP_BOTTOM3 { 443 0x0: Inst::WRMSR(); 444 0x1: Inst::RDTSC(); 445 0x2: Inst::RDMSR(); 446 0x3: rdpmc(); 447#if FULL_SYSTEM 448 0x4: sysenter(); 449#else 450 0x4: SyscallInst::sysenter('xc->syscall(Rax)', IsSyscall); 451#endif 452 0x5: sysexit(); 453 0x6: Inst::UD2(); 454 0x7: getsec(); 455 } 456 0x07: decode OPCODE_OP_BOTTOM3 { 457 0x0: M5InternalError::error( 458 {{"Three byte opcode shouldn't be handled by " 459 "two_byte_opcodes.isa!"}}); 460 0x2: M5InternalError::error( 461 {{"Three byte opcode shouldn't be handled by " 462 "two_byte_opcodes.isa!"}}); 463 default: UD2(); 464 } 465 format Inst { 466 0x08: decode OPCODE_OP_BOTTOM3 { 467 0x0: CMOVO(Gv,Ev); 468 0x1: CMOVNO(Gv,Ev); 469 0x2: CMOVB(Gv,Ev); 470 0x3: CMOVNB(Gv,Ev); 471 0x4: CMOVZ(Gv,Ev); 472 0x5: CMOVNZ(Gv,Ev); 473 0x6: CMOVBE(Gv,Ev); 474 0x7: CMOVNBE(Gv,Ev); 475 } 476 0x09: decode OPCODE_OP_BOTTOM3 { 477 0x0: CMOVS(Gv,Ev); 478 0x1: CMOVNS(Gv,Ev); 479 0x2: CMOVP(Gv,Ev); 480 0x3: CMOVNP(Gv,Ev); 481 0x4: CMOVL(Gv,Ev); 482 0x5: CMOVNL(Gv,Ev); 483 0x6: CMOVLE(Gv,Ev); 484 0x7: CMOVNLE(Gv,Ev); 485 } 486 0x0A: decode LEGACY_DECODEVAL { 487 // no prefix 488 0x0: decode OPCODE_OP_BOTTOM3 { 489 0x0: MOVMSKPS(Gd,VRo); 490 0x1: SQRTPS(Vo,Wo); 491 0x2: WarnUnimpl::rqsrtps_Vo_Wo(); 492 0x3: WarnUnimpl::rcpps_Vo_Wo(); 493 0x4: ANDPS(Vo,Wo); 494 0x5: ANDNPS(Vo,Wo); 495 0x6: ORPS(Vo,Wo); 496 0x7: XORPS(Vo,Wo); 497 } 498 // repe (0xF3) 499 0x4: decode OPCODE_OP_BOTTOM3 { 500 0x1: SQRTSS(Vd,Wd); 501 0x2: WarnUnimpl::rsqrtss_Vd_Wd(); 502 0x3: WarnUnimpl::rcpss_Vd_Wd(); 503 default: UD2(); 504 } 505 // operand size (0x66) 506 0x1: decode OPCODE_OP_BOTTOM3 { 507 0x0: MOVMSKPD(Gd,VRo); 508 0x1: SQRTPD(Vo,Wo); 509 0x4: ANDPD(Vo,Wo); 510 0x5: ANDNPD(Vo,Wo); 511 0x6: ORPD(Vo,Wo); 512 0x7: XORPD(Vo,Wo); 513 default: UD2(); 514 } 515 // repne (0xF2) 516 0x8: decode OPCODE_OP_BOTTOM3 { 517 0x1: SQRTSD(Vq,Wq); 518 default: UD2(); 519 } 520 default: UD2(); 521 } 522 0x0B: decode LEGACY_DECODEVAL { 523 // no prefix 524 0x0: decode OPCODE_OP_BOTTOM3 { 525 0x0: ADDPS(Vo,Wo); 526 0x1: MULPS(Vo,Wo); 527 0x2: CVTPS2PD(Vo,Wq); 528 0x3: CVTDQ2PS(Vo,Wo); 529 0x4: SUBPS(Vo,Wo); 530 0x5: MINPS(Vo,Wo); 531 0x6: DIVPS(Vo,Wo); 532 0x7: MAXPS(Vo,Wo); 533 } 534 // repe (0xF3) 535 0x4: decode OPCODE_OP_BOTTOM3 { 536 0x0: ADDSS(Vd,Wd); 537 0x1: MULSS(Vd,Wd); 538 0x2: CVTSS2SD(Vq,Wd); 539 0x3: CVTTPS2DQ(Vo,Wo); 540 0x4: SUBSS(Vd,Wd); 541 0x5: MINSS(Vd,Wd); 542 0x6: DIVSS(Vd,Wd); 543 0x7: MAXSS(Vd,Wd); 544 } 545 // operand size (0x66) 546 0x1: decode OPCODE_OP_BOTTOM3 { 547 0x0: ADDPD(Vo,Wo); 548 0x1: MULPD(Vo,Wo); 549 0x2: CVTPD2PS(Vo,Wo); 550 0x3: CVTPS2DQ(Vo,Wo); 551 0x4: SUBPD(Vo,Wo); 552 0x5: MINPD(Vo,Wo); 553 0x6: DIVPD(Vo,Wo); 554 0x7: MAXPD(Vo,Wo); 555 } 556 // repne (0xF2) 557 0x8: decode OPCODE_OP_BOTTOM3 { 558 0x0: ADDSD(Vq,Wq); 559 0x1: MULSD(Vq,Wq); 560 0x2: CVTSD2SS(Vd,Wq); 561 0x4: SUBSD(Vq,Wq); 562 0x5: MINSD(Vq,Wq); 563 0x6: DIVSD(Vq,Wq); 564 0x7: MAXSD(Vq,Wq); 565 default: UD2(); 566 } 567 default: UD2(); 568 } 569 0x0C: decode LEGACY_DECODEVAL { 570 // no prefix 571 0x0: decode OPCODE_OP_BOTTOM3 { 572 0x0: PUNPCKLBW(Pq,Qd); 573 0x1: PUNPCKLWD(Pq,Qd); 574 0x2: PUNPCKLDQ(Pq,Qd); 575 0x3: PACKSSWB(Pq,Qq); 576 0x4: PCMPGTB(Pq,Qq); 577 0x5: PCMPGTW(Pq,Qq); 578 0x6: PCMPGTD(Pq,Qq); 579 0x7: PACKUSWB(Pq,Qq); 580 } 581 // operand size (0x66) 582 0x1: decode OPCODE_OP_BOTTOM3 { 583 0x0: PUNPCKLBW(Vo,Wq); 584 0x1: PUNPCKLWD(Vo,Wq); 585 0x2: PUNPCKLDQ(Vo,Wq); 586 0x3: PACKSSWB(Vo,Wo); 587 0x4: PCMPGTB(Vo,Wo); 588 0x5: PCMPGTW(Vo,Wo); 589 0x6: PCMPGTD(Vo,Wo); 590 0x7: PACKUSWB(Vo,Wo); 591 } 592 default: UD2(); 593 } 594 0x0D: decode LEGACY_DECODEVAL { 595 // no prefix 596 0x0: decode OPCODE_OP_BOTTOM3 { 597 0x0: PUNPCKHBW(Pq,Qq); 598 0x1: PUNPCKHWD(Pq,Qq); 599 0x2: PUNPCKHDQ(Pq,Qq); 600 0x3: PACKSSDW(Pq,Qq); 601 0x6: MOVD(Pq,Edp); 602 0x7: MOVQ(Pq,Qq); 603 default: UD2(); 604 } 605 // repe (0xF3) 606 0x4: decode OPCODE_OP_BOTTOM3 { 607 0x7: MOVDQU(Vo,Wo); 608 default: UD2(); 609 } 610 // operand size (0x66) 611 0x1: decode OPCODE_OP_BOTTOM3 { 612 0x0: PUNPCKHBW(Vo,Wo); 613 0x1: PUNPCKHWD(Vo,Wo); 614 0x2: PUNPCKHDQ(Vo,Wo); 615 0x3: PACKSSDW(Vo,Wo); 616 0x4: PUNPCKLQDQ(Vo,Wq); 617 0x5: PUNPCKHQDQ(Vo,Wq); 618 0x6: MOVD(Vo,Edp); 619 0x7: MOVDQA(Vo,Wo); 620 } 621 default: UD2(); 622 } 623 0x0E: decode LEGACY_DECODEVAL { 624 // no prefix 625 0x0: decode OPCODE_OP_BOTTOM3 { 626 0x0: PSHUFW(Pq,Qq,Ib); 627 //0x1: group12_pshimw(); 628 0x1: decode MODRM_REG { 629 0x2: PSRLW(PRq,Ib); 630 0x4: PSRAW(PRq,Ib); 631 0x6: PSLLW(PRq,Ib); 632 default: UD2(); 633 } 634 //0x2: group13_pshimd(); 635 0x2: decode MODRM_REG { 636 0x2: PSRLD(PRq,Ib); 637 0x4: PSRAD(PRq,Ib); 638 0x6: PSLLD(PRq,Ib); 639 default: UD2(); 640 } 641 //0x3: group14_pshimq(); 642 0x3: decode MODRM_REG { 643 0x2: PSRLQ(PRq,Ib); 644 0x6: PSLLQ(PRq,Ib); 645 default: Inst::UD2(); 646 } 647 0x4: Inst::PCMPEQB(Pq,Qq); 648 0x5: Inst::PCMPEQW(Pq,Qq); 649 0x6: Inst::PCMPEQD(Pq,Qq); 650 0x7: WarnUnimpl::emms(); 651 } 652 // repe (0xF3) 653 0x4: decode OPCODE_OP_BOTTOM3 { 654 0x0: PSHUFHW(Vo,Wo,Ib); 655 default: UD2(); 656 } 657 // operand size (0x66) 658 0x1: decode OPCODE_OP_BOTTOM3 { 659 0x0: PSHUFD(Vo,Wo,Ib); 660 //0x1: group12_pshimw(); 661 0x1: decode MODRM_REG { 662 0x2: PSRLW(VRo,Ib); 663 0x4: PSRAW(VRo,Ib); 664 0x6: PSLLW(VRo,Ib); 665 } 666 //0x2: group13_pshimd(); 667 0x2: decode MODRM_REG { 668 0x2: PSRLD(VRo,Ib); 669 0x4: PSRAD(VRo,Ib); 670 0x6: PSLLD(VRo,Ib); 671 default: UD2(); 672 } 673 //0x3: group14_pshimq(); 674 0x3: decode MODRM_REG { 675 0x2: PSRLQ(VRo,Ib); 676 0x3: WarnUnimpl::psrldq_VRo_Ib(); 677 0x6: PSLLQ(VRo,Ib); 678 0x7: WarnUnimpl::pslldq_VRo_Ib(); 679 default: UD2(); 680 } 681 0x4: PCMPEQB(Vo,Wo); 682 0x5: PCMPEQW(Vo,Wo); 683 0x6: PCMPEQD(Vo,Wo); 684 default: UD2(); 685 } 686 // repne (0xF2) 687 0x8: decode OPCODE_OP_BOTTOM3 { 688 0x0: PSHUFLW(Vo,Wo,Ib); 689 default: UD2(); 690 } 691 default: UD2(); 692 } 693 0x0F: decode LEGACY_DECODEVAL { 694 // no prefix 695 0x0: decode OPCODE_OP_BOTTOM3 { 696 0x0: WarnUnimpl::vmread_Edp_Gdp(); 697 0x1: WarnUnimpl::vmwrite_Gdp_Edp(); 698 0x6: MOVD(Edp,Pdp); 699 0x7: MOVQ(Qq,Pq); 700 default: UD2(); 701 } 702 // repe (0xF3) 703 0x4: decode OPCODE_OP_BOTTOM3 { 704 0x6: MOVQ(Vq,Wq); 705 0x7: MOVDQU(Wo,Vo); 706 default: UD2(); 707 } 708 // operand size (0x66) 709 0x1: decode OPCODE_OP_BOTTOM3 { 710 0x4: HADDPD(Vo,Wo); 711 0x5: WarnUnimpl::hsubpd_Vo_Wo(); 712 0x6: MOVD(Edp,Vd); 713 0x7: MOVDQA(Wo,Vo); 714 default: UD2(); 715 } 716 // repne (0xF2) 717 0x8: decode OPCODE_OP_BOTTOM3 { 718 0x4: WarnUnimpl::haddps_Vo_Wo(); 719 0x5: WarnUnimpl::hsubps_Vo_Wo(); 720 default: UD2(); 721 } 722 default: UD2(); 723 } 724 0x10: decode OPCODE_OP_BOTTOM3 { 725 0x0: JO(Jz); 726 0x1: JNO(Jz); 727 0x2: JB(Jz); 728 0x3: JNB(Jz); 729 0x4: JZ(Jz); 730 0x5: JNZ(Jz); 731 0x6: JBE(Jz); 732 0x7: JNBE(Jz); 733 } 734 0x11: decode OPCODE_OP_BOTTOM3 { 735 0x0: JS(Jz); 736 0x1: JNS(Jz); 737 0x2: JP(Jz); 738 0x3: JNP(Jz); 739 0x4: JL(Jz); 740 0x5: JNL(Jz); 741 0x6: JLE(Jz); 742 0x7: JNLE(Jz); 743 } 744 0x12: decode OPCODE_OP_BOTTOM3 { 745 0x0: SETO(Eb); 746 0x1: SETNO(Eb); 747 0x2: SETB(Eb); 748 0x3: SETNB(Eb); 749 0x4: SETZ(Eb); 750 0x5: SETNZ(Eb); 751 0x6: SETBE(Eb); 752 0x7: SETNBE(Eb); 753 } 754 0x13: decode OPCODE_OP_BOTTOM3 { 755 0x0: SETS(Eb); 756 0x1: SETNS(Eb); 757 0x2: SETP(Eb); 758 0x3: SETNP(Eb); 759 0x4: SETL(Eb); 760 0x5: SETNL(Eb); 761 0x6: SETLE(Eb); 762 0x7: SETNLE(Eb); 763 } 764 } 765 0x14: decode OPCODE_OP_BOTTOM3 { 766 0x0: push_fs(); 767 0x1: pop_fs(); 768 0x2: CPUIDInst::CPUID({{ 769 CpuidResult result; 770 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0), result); 771 Rax = result.rax; 772 Rbx = result.rbx; 773 Rcx = result.rcx; 774 Rdx = result.rdx; 775 }}); 776 0x3: Inst::BT(Ev,Gv); 777 0x4: Inst::SHLD(Ev,Gv,Ib); 778 0x5: Inst::SHLD(Ev,Gv); 779 default: Inst::UD2(); 780 } 781 0x15: decode OPCODE_OP_BOTTOM3 { 782 0x0: push_gs(); 783 0x1: pop_gs(); 784 0x2: rsm_smm(); 785 0x3: Inst::BTS(Ev,Gv); 786 0x4: Inst::SHRD(Ev,Gv,Ib); 787 0x5: Inst::SHRD(Ev,Gv); 788 //0x6: group15(); 789 0x6: decode MODRM_MOD { 790 0x3: decode MODRM_REG { 791 0x5: BasicOperate::LFENCE( 792 {{/*Nothing*/}}, IsReadBarrier); 793 0x6: BasicOperate::MFENCE( 794 {{/*Nothing*/}}, IsMemBarrier); 795 0x7: BasicOperate::SFENCE( 796 {{/*Nothing*/}}, IsWriteBarrier); 797 default: Inst::UD2(); 798 } 799 default: decode MODRM_REG { 800 0x0: fxsave(); 801 0x1: fxrstor(); 802 0x2: Inst::LDMXCSR(Md); 803 0x3: Inst::STMXCSR(Md); 804 0x4: xsave(); 805 0x5: xrstor(); 806 0x6: Inst::UD2(); 807 0x7: clflush(); 808 } 809 } 810 0x7: Inst::IMUL(Gv,Ev); 811 } 812 format Inst { 813 0x16: decode OPCODE_OP_BOTTOM3 { 814 0x0: CMPXCHG(Eb,Gb); 815 0x1: CMPXCHG(Ev,Gv); 816 0x2: WarnUnimpl::lss_Gz_Mp(); 817 0x3: BTR(Ev,Gv); 818 0x4: WarnUnimpl::lfs_Gz_Mp(); 819 0x5: WarnUnimpl::lgs_Gz_Mp(); 820 //The size of the second operand in these instructions 821 //should really be "b" or "w", but it's set to v in order 822 //to have a consistent register size. This shouldn't 823 //affect behavior. 824 0x6: MOVZX_B(Gv,Ev); 825 0x7: MOVZX_W(Gv,Ev); 826 } 827 0x17: decode OPCODE_OP_BOTTOM3 { 828 0x0: decode LEGACY_REP { 829 0x0: WarnUnimpl::jmpe_Jz(); 830 0x1: WarnUnimpl::popcnt_Gv_Ev(); 831 } 832 //0x1: group10_UD2(); 833 0x1: UD2(); 834 //0x2: group8_Ev_Ib(); 835 0x2: decode MODRM_REG { 836 0x4: BT(Ev,Ib); 837 0x5: BTS(Ev,Ib); 838 0x6: BTR(Ev,Ib); 839 0x7: BTC(Ev,Ib); 840 default: UD2(); 841 } 842 0x3: BTC(Ev,Gv); 843 0x4: BSF(Gv,Ev); 844 0x5: BSR(Gv,Ev); 845 //The size of the second operand in these instructions 846 //should really be "b" or "w", but it's set to v in order 847 //to have a consistent register size. This shouldn't 848 //affect behavior. 849 0x6: MOVSX_B(Gv,Ev); 850 0x7: MOVSX_W(Gv,Ev); 851 } 852 0x18: decode OPCODE_OP_BOTTOM3 { 853 0x0: XADD(Eb,Gb); 854 0x1: XADD(Ev,Gv); 855 //0x7: group9(); 856 0x7: decode MODRM_REG { 857 //Also CMPXCHG16B 858 0x1: CMPXCHG8B(Mdp); 859 0x6: decode LEGACY_OP { 860 0x1: WarnUnimpl::vmclear_Mq(); 861 default: decode LEGACY_REP { 862 0x1: WarnUnimpl::vmxon_Mq(); 863 0x0: WarnUnimpl::vmptrld_Mq(); 864 } 865 } 866 0x7: WarnUnimpl::vmptrst_Mq(); 867 default: UD2(); 868 } 869 default: decode LEGACY_DECODEVAL { 870 // no prefix 871 0x0: decode OPCODE_OP_BOTTOM3 { 872 0x2: CMPPS(Vo,Wo,Ib); 873 0x3: MOVNTI(Mdp,Gdp); 874 0x4: PINSRW(Pq,Ew,Ib); 875 0x5: PEXTRW(Gd,PRq,Ib); 876 0x6: SHUFPS(Vps,Wps,Ib); 877 } 878 // repe (0xF3) 879 0x4: decode OPCODE_OP_BOTTOM3 { 880 0x2: CMPSS(Vd,Wd,Ib); 881 default: UD2(); 882 } 883 // operand size (0x66) 884 0x1: decode OPCODE_OP_BOTTOM3 { 885 0x2: CMPPD(Vo,Wo,Ib); 886 0x4: PINSRW(Vdw,Ew,Ib); 887 0x5: PEXTRW(Gd,VRdq,Ib); 888 0x6: SHUFPD(Vpd,Wpd,Ib); 889 default: UD2(); 890 } 891 // repne (0xF2) 892 0x8: decode OPCODE_OP_BOTTOM3 { 893 0x2: CMPSD(Vq,Wq,Ib); 894 default: UD2(); 895 } 896 default: UD2(); 897 } 898 } 899 0x19: decode OPSIZE { 900 4: BSWAP_D(Bd); 901 8: BSWAP_Q(Bq); 902 default: UD2(); 903 } 904 0x1A: decode LEGACY_DECODEVAL { 905 // no prefix 906 0x0: decode OPCODE_OP_BOTTOM3 { 907 0x1: PSRLW(Pq,Qq); 908 0x2: PSRLD(Pq,Qq); 909 0x3: PSRLQ(Pq,Qq); 910 0x4: PADDQ(Pq,Qq); 911 0x5: PMULLW(Pq,Qq); 912 0x7: PMOVMSKB(Gd,PRq); 913 default: UD2(); 914 } 915 // repe (0xF3) 916 0x4: decode OPCODE_OP_BOTTOM3 { 917 0x6: MOVQ2DQ(Vo,PRq); 918 default: UD2(); 919 } 920 // operand size (0x66) 921 0x1: decode OPCODE_OP_BOTTOM3 { 922 0x0: WarnUnimpl::addsubpd_Vo_Wo(); 923 0x1: PSRLW(Vo,Wo); 924 0x2: PSRLD(Vo,Wo); 925 0x3: PSRLQ(Vo,Wo); 926 0x4: PADDQ(Vo,Wo); 927 0x5: PMULLW(Vo,Wo); 928 0x6: MOVQ(Wq,Vq); 929 0x7: PMOVMSKB(Gd,VRo); 930 } 931 // repne (0xF2) 932 0x8: decode OPCODE_OP_BOTTOM3 { 933 0x0: WarnUnimpl::addsubps_Vo_Wo(); 934 0x6: MOVDQ2Q(Pq,VRq); 935 default: UD2(); 936 } 937 default: UD2(); 938 } 939 0x1B: decode LEGACY_DECODEVAL { 940 // no prefix 941 0x0: decode OPCODE_OP_BOTTOM3 { 942 0x0: PSUBUSB(Pq,Qq); 943 0x1: PSUBUSW(Pq,Qq); 944 0x2: PMINUB(Pq,Qq); 945 0x3: PAND(Pq,Qq); 946 0x4: PADDUSB(Pq,Qq); 947 0x5: PADDUSW(Pq,Qq); 948 0x6: PMAXUB(Pq,Qq); 949 0x7: PANDN(Pq,Qq); 950 } 951 // operand size (0x66) 952 0x1: decode OPCODE_OP_BOTTOM3 { 953 0x0: PSUBUSB(Vo,Wo); 954 0x1: PSUBUSW(Vo,Wo); 955 0x2: PMINUB(Vo,Wo); 956 0x3: PAND(Vo,Wo); 957 0x4: PADDUSB(Vo,Wo); 958 0x5: PADDUSW(Vo,Wo); 959 0x6: PMAXUB(Vo,Wo); 960 0x7: PANDN(Vo,Wo); 961 } 962 default: UD2(); 963 } 964 0x1C: decode LEGACY_DECODEVAL { 965 // no prefix 966 0x0: decode OPCODE_OP_BOTTOM3 { 967 0x0: PAVGB(Pq,Qq); 968 0x1: PSRAW(Pq,Qq); 969 0x2: PSRAD(Pq,Qq); 970 0x3: PAVGW(Pq,Qq); 971 0x4: PMULHUW(Pq,Qq); 972 0x5: PMULHW(Pq,Qq); 973 0x7: WarnUnimpl::movntq_Mq_Pq(); 974 default: UD2(); 975 } 976 // repe (0xF3) 977 0x4: decode OPCODE_OP_BOTTOM3 { 978 0x6: CVTDQ2PD(Vo,Wq); 979 default: UD2(); 980 } 981 // operand size (0x66) 982 0x1: decode OPCODE_OP_BOTTOM3 { 983 0x0: PAVGB(Vo,Wo); 984 0x1: PSRAW(Vo,Wo); 985 0x2: PSRAD(Vo,Wo); 986 0x3: PAVGW(Vo,Wo); 987 0x4: PMULHUW(Vo,Wo); 988 0x5: PMULHW(Vo,Wo); 989 0x6: CVTTPD2DQ(Vo,Wo); 990 0x7: WarnUnimpl::movntdq_Mo_Vo(); 991 } 992 // repne (0xF2) 993 0x8: decode OPCODE_OP_BOTTOM3 { 994 0x6: CVTPD2DQ(Vo,Wo); 995 default: UD2(); 996 } 997 default: UD2(); 998 } 999 0x1D: decode LEGACY_DECODEVAL { 1000 // no prefix 1001 0x0: decode OPCODE_OP_BOTTOM3 { 1002 0x0: PSUBSB(Pq,Qq); 1003 0x1: PSUBSW(Pq,Qq); 1004 0x2: PMINSW(Pq,Qq); 1005 0x3: POR(Pq,Qq); 1006 0x4: PADDSB(Pq,Qq); 1007 0x5: PADDSW(Pq,Qq); 1008 0x6: PMAXSW(Pq,Qq); 1009 0x7: PXOR(Pq,Qq); 1010 } 1011 // operand size (0x66) 1012 0x1: decode OPCODE_OP_BOTTOM3 { 1013 0x0: PSUBSB(Vo,Wo); 1014 0x1: PSUBSW(Vo,Wo); 1015 0x2: PMINSW(Vo,Wo); 1016 0x3: POR(Vo,Wo); 1017 0x4: PADDSB(Vo,Wo); 1018 0x5: PADDSW(Vo,Wo); 1019 0x6: PMAXSW(Vo,Wo); 1020 0x7: PXOR(Vo,Wo); 1021 } 1022 default: UD2(); 1023 } 1024 0x1E: decode LEGACY_DECODEVAL { 1025 // no prefix 1026 0x0: decode OPCODE_OP_BOTTOM3 { 1027 0x1: PSLLW(Pq,Qq); 1028 0x2: PSLLD(Pq,Qq); 1029 0x3: PSLLQ(Pq,Qq); 1030 0x4: PMULUDQ(Pq,Qq); 1031 0x5: PMADDWD(Pq,Qq); 1032 0x6: PSADBW(Pq,Qq); 1033 0x7: MASKMOVQ(Pq,PRq); 1034 default: UD2(); 1035 } 1036 // operand size (0x66) 1037 0x1: decode OPCODE_OP_BOTTOM3 { 1038 0x1: PSLLW(Vo,Wo); 1039 0x2: PSLLD(Vo,Wo); 1040 0x3: PSLLQ(Vo,Wo); 1041 0x4: PMULUDQ(Vo,Wo); 1042 0x5: PMADDWD(Vo,Wo); 1043 0x6: PSADBW(Vo,Wo); 1044 0x7: MASKMOVDQU(Vo,VRo); 1045 default: UD2(); 1046 } 1047 // repne (0xF2) 1048 0x8: decode OPCODE_OP_BOTTOM3 { 1049 0x0: WarnUnimpl::lddqu_Vo_Mo(); 1050 default: UD2(); 1051 } 1052 default: UD2(); 1053 } 1054 0x1F: decode LEGACY_DECODEVAL { 1055 // no prefix 1056 0x0: decode OPCODE_OP_BOTTOM3 { 1057 0x0: PSUBB(Pq,Qq); 1058 0x1: PSUBW(Pq,Qq); 1059 0x2: PSUBD(Pq,Qq); 1060 0x3: PSUBQ(Pq,Qq); 1061 0x4: PADDB(Pq,Qq); 1062 0x5: PADDW(Pq,Qq); 1063 0x6: PADDD(Pq,Qq); 1064 0x7: UD2(); 1065 } 1066 // operand size (0x66) 1067 0x1: decode OPCODE_OP_BOTTOM3 { 1068 0x0: PSUBB(Vo,Wo); 1069 0x1: PSUBW(Vo,Wo); 1070 0x2: PSUBD(Vo,Wo); 1071 0x3: PSUBQ(Vo,Wo); 1072 0x4: PADDB(Vo,Wo); 1073 0x5: PADDW(Vo,Wo); 1074 0x6: PADDD(Vo,Wo); 1075 0x7: UD2(); 1076 } 1077 default: UD2(); 1078 } 1079 } 1080 default: FailUnimpl::twoByteOps(); 1081 } 1082 } 1083 default: M5InternalError::error( 1084 {{"Unexpected first opcode byte in two byte opcode!"}}); 1085} 1086