two_byte_opcodes.isa revision 6615
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: FailUnimpl::threednow(); 296 } 297 format Inst{ 298 0x02: decode LEGACY_DECODEVAL { 299 // no prefix 300 0x0: decode OPCODE_OP_BOTTOM3 { 301 0x0: MOVUPS(Vo,Wo); 302 0x1: MOVUPS(Wo,Vo); 303 0x2: decode MODRM_MOD { 304 0x3: MOVHLPS(Vps,VRq); 305 default: MOVLPS(Vps,Mq); 306 } 307 0x3: MOVLPS(Mq,Vps); 308 0x4: UNPCKLPS(Vps,Wq); 309 0x5: UNPCKHPS(Vps,Wq); 310 0x6: decode MODRM_MOD { 311 0x3: MOVLHPS(Vps,VRq); 312 default: MOVHPS(Vps,Mq); 313 } 314 0x7: MOVHPS(Mq,Vq); 315 } 316 // repe (0xF3) 317 0x4: decode OPCODE_OP_BOTTOM3 { 318 0x0: MOVSS(Vd,Wd); 319 0x1: MOVSS(Wd,Vd); 320 0x2: WarnUnimpl::movsldup_Vo_Wo(); 321 0x6: WarnUnimpl::movshdup_Vo_Wo(); 322 default: UD2(); 323 } 324 // operand size (0x66) 325 0x1: decode OPCODE_OP_BOTTOM3 { 326 0x0: MOVUPD(Vo,Wo); 327 0x1: MOVUPD(Wo,Vo); 328 0x2: MOVLPD(Vq,Mq); 329 0x3: MOVLPD(Mq,Vq); 330 0x4: UNPCKLPD(Vo,Wq); 331 0x5: UNPCKHPD(Vo,Wo); 332 0x6: MOVHPD(Vq,Mq); 333 0x7: MOVHPD(Mq,Vq); 334 } 335 // repne (0xF2) 336 0x8: decode OPCODE_OP_BOTTOM3 { 337 0x0: MOVSD(Vq,Wq); 338 0x1: MOVSD(Wq,Vq); 339 0x2: MOVDDUP(Vo,Wq); 340 default: UD2(); 341 } 342 default: UD2(); 343 } 344 0x03: decode OPCODE_OP_BOTTOM3 { 345 //group16(); 346 0x0: decode MODRM_REG { 347 0x0: WarnUnimpl::prefetch_nta(); 348 0x1: PREFETCH_T0(Mb); 349 0x2: WarnUnimpl::prefetch_t1(); 350 0x3: WarnUnimpl::prefetch_t2(); 351 default: HINT_NOP(); 352 } 353 0x1: HINT_NOP(); 354 0x2: HINT_NOP(); 355 0x3: HINT_NOP(); 356 0x4: HINT_NOP(); 357 0x5: HINT_NOP(); 358 0x6: HINT_NOP(); 359 0x7: HINT_NOP(); 360 } 361 0x04: decode LEGACY_DECODEVAL { 362 // no prefix 363 0x0: decode OPCODE_OP_BOTTOM3 { 364 0x0: MOV(Rd,Cd); 365 0x1: MOV(Rd,Dd); 366 0x2: MOV(Cd,Rd); 367 0x3: MOV(Dd,Rd); 368 default: UD2(); 369 } 370 default: UD2(); 371 } 372 0x05: decode LEGACY_DECODEVAL { 373 // no prefix 374 0x0: decode OPCODE_OP_BOTTOM3 { 375 //These moves should really use size o (octword), but 376 //because they are split in two, they use q (quadword). 377 0x0: MOVAPS(Vq,Wq); 378 0x1: MOVAPS(Wq,Vq); 379 0x2: CVTPI2PS(Vq,Qq); 380 0x3: WarnUnimpl::movntps_Mo_Vo(); 381 0x4: CVTTPS2PI(Pq,Wq); 382 0x5: CVTPS2PI(Pq,Wq); 383 0x6: UCOMISS(Vd,Wd); 384 0x7: COMISS(Vd,Wd); 385 } 386 // repe (0xF3) 387 0x4: decode OPCODE_OP_BOTTOM3 { 388 0x2: CVTSI2SS(Vd,Ed); 389 0x4: CVTTSS2SI(Gd,Wd); 390 0x5: CVTSS2SI(Gd,Wd); 391 default: UD2(); 392 } 393 // operand size (0x66) 394 0x1: decode OPCODE_OP_BOTTOM3 { 395 0x0: MOVAPD(Vo,Wo); 396 0x1: MOVAPD(Wo,Vo); 397 0x2: CVTPI2PD(Vo,Qq); 398 0x3: WarnUnimpl::movntpd_Mo_Vo(); 399 0x4: CVTTPD2PI(Pq,Wo); 400 0x5: CVTPD2PI(Pq,Wo); 401 0x6: UCOMISD(Vq,Wq); 402 0x7: COMISD(Vq,Wq); 403 } 404 // repne (0xF2) 405 0x8: decode OPCODE_OP_BOTTOM3 { 406 // The size of the V operand should be q, not dp 407 0x2: CVTSI2SD(Vdp,Edp); 408 // The size of the W operand should be q, not dp 409 0x4: CVTTSD2SI(Gdp,Wdp); 410 0x5: CVTSD2SI(Gd,Wq); 411 default: UD2(); 412 } 413 default: UD2(); 414 } 415 } 416 0x06: decode OPCODE_OP_BOTTOM3 { 417 0x0: Inst::WRMSR(); 418 0x1: Inst::RDTSC(); 419 0x2: Inst::RDMSR(); 420 0x3: rdpmc(); 421#if FULL_SYSTEM 422 0x4: sysenter(); 423#else 424 0x4: SyscallInst::sysenter('xc->syscall(Rax)', IsSyscall); 425#endif 426 0x5: sysexit(); 427 0x6: Inst::UD2(); 428 0x7: getsec(); 429 } 430 0x07: decode OPCODE_OP_BOTTOM3 { 431 0x0: M5InternalError::error( 432 {{"Three byte opcode shouldn't be handled by " 433 "two_byte_opcodes.isa!"}}); 434 0x2: M5InternalError::error( 435 {{"Three byte opcode shouldn't be handled by " 436 "two_byte_opcodes.isa!"}}); 437 default: UD2(); 438 } 439 format Inst { 440 0x08: decode OPCODE_OP_BOTTOM3 { 441 0x0: CMOVO(Gv,Ev); 442 0x1: CMOVNO(Gv,Ev); 443 0x2: CMOVB(Gv,Ev); 444 0x3: CMOVNB(Gv,Ev); 445 0x4: CMOVZ(Gv,Ev); 446 0x5: CMOVNZ(Gv,Ev); 447 0x6: CMOVBE(Gv,Ev); 448 0x7: CMOVNBE(Gv,Ev); 449 } 450 0x09: decode OPCODE_OP_BOTTOM3 { 451 0x0: CMOVS(Gv,Ev); 452 0x1: CMOVNS(Gv,Ev); 453 0x2: CMOVP(Gv,Ev); 454 0x3: CMOVNP(Gv,Ev); 455 0x4: CMOVL(Gv,Ev); 456 0x5: CMOVNL(Gv,Ev); 457 0x6: CMOVLE(Gv,Ev); 458 0x7: CMOVNLE(Gv,Ev); 459 } 460 0x0A: decode LEGACY_DECODEVAL { 461 // no prefix 462 0x0: decode OPCODE_OP_BOTTOM3 { 463 0x0: MOVMSKPS(Gd,VRo); 464 0x1: SQRTPS(Vo,Wo); 465 0x2: WarnUnimpl::rqsrtps_Vo_Wo(); 466 0x3: WarnUnimpl::rcpps_Vo_Wo(); 467 0x4: ANDPS(Vo,Wo); 468 0x5: ANDNPS(Vo,Wo); 469 0x6: ORPS(Vo,Wo); 470 0x7: XORPS(Vo,Wo); 471 } 472 // repe (0xF3) 473 0x4: decode OPCODE_OP_BOTTOM3 { 474 0x1: SQRTSS(Vd,Wd); 475 0x2: WarnUnimpl::rsqrtss_Vd_Wd(); 476 0x3: WarnUnimpl::rcpss_Vd_Wd(); 477 default: UD2(); 478 } 479 // operand size (0x66) 480 0x1: decode OPCODE_OP_BOTTOM3 { 481 0x0: MOVMSKPD(Gd,VRo); 482 0x1: SQRTPD(Vo,Wo); 483 0x4: ANDPD(Vo,Wo); 484 0x5: ANDNPD(Vo,Wo); 485 0x6: ORPD(Vo,Wo); 486 0x7: XORPD(Vo,Wo); 487 default: UD2(); 488 } 489 // repne (0xF2) 490 0x8: decode OPCODE_OP_BOTTOM3 { 491 0x1: SQRTSD(Vq,Wq); 492 default: UD2(); 493 } 494 default: UD2(); 495 } 496 0x0B: decode LEGACY_DECODEVAL { 497 // no prefix 498 0x0: decode OPCODE_OP_BOTTOM3 { 499 0x0: ADDPS(Vo,Wo); 500 0x1: MULPS(Vo,Wo); 501 0x2: CVTPS2PD(Vo,Wq); 502 0x3: CVTDQ2PS(Vo,Wo); 503 0x4: SUBPS(Vo,Wo); 504 0x5: MINPS(Vo,Wo); 505 0x6: DIVPS(Vo,Wo); 506 0x7: MAXPS(Vo,Wo); 507 } 508 // repe (0xF3) 509 0x4: decode OPCODE_OP_BOTTOM3 { 510 0x0: ADDSS(Vd,Wd); 511 0x1: MULSS(Vd,Wd); 512 0x2: CVTSS2SD(Vq,Wd); 513 0x3: CVTTPS2DQ(Vo,Wo); 514 0x4: SUBSS(Vd,Wd); 515 0x5: MINSS(Vd,Wd); 516 0x6: DIVSS(Vd,Wd); 517 0x7: MAXSS(Vd,Wd); 518 } 519 // operand size (0x66) 520 0x1: decode OPCODE_OP_BOTTOM3 { 521 0x0: ADDPD(Vo,Wo); 522 0x1: MULPD(Vo,Wo); 523 0x2: CVTPD2PS(Vo,Wo); 524 0x3: CVTPS2DQ(Vo,Wo); 525 0x4: SUBPD(Vo,Wo); 526 0x5: MINPD(Vo,Wo); 527 0x6: DIVPD(Vo,Wo); 528 0x7: MAXPD(Vo,Wo); 529 } 530 // repne (0xF2) 531 0x8: decode OPCODE_OP_BOTTOM3 { 532 0x0: ADDSD(Vq,Wq); 533 0x1: MULSD(Vq,Wq); 534 0x2: CVTSD2SS(Vd,Wq); 535 0x4: SUBSD(Vq,Wq); 536 0x5: MINSD(Vq,Wq); 537 0x6: DIVSD(Vq,Wq); 538 0x7: MAXSD(Vq,Wq); 539 default: UD2(); 540 } 541 default: UD2(); 542 } 543 0x0C: decode LEGACY_DECODEVAL { 544 // no prefix 545 0x0: decode OPCODE_OP_BOTTOM3 { 546 0x0: PUNPCKLBW(Pq,Qd); 547 0x1: PUNPCKLWD(Pq,Qd); 548 0x2: PUNPCKLDQ(Pq,Qd); 549 0x3: PACKSSWB(Pq,Qq); 550 0x4: PCMPGTB(Pq,Qq); 551 0x5: PCMPGTW(Pq,Qq); 552 0x6: PCMPGTD(Pq,Qq); 553 0x7: PACKUSWB(Pq,Qq); 554 } 555 // operand size (0x66) 556 0x1: decode OPCODE_OP_BOTTOM3 { 557 0x0: PUNPCKLBW(Vo,Wq); 558 0x1: PUNPCKLWD(Vo,Wq); 559 0x2: PUNPCKLDQ(Vo,Wq); 560 0x3: PACKSSWB(Vo,Wo); 561 0x4: PCMPGTB(Vo,Wo); 562 0x5: PCMPGTW(Vo,Wo); 563 0x6: PCMPGTD(Vo,Wo); 564 0x7: PACKUSWB(Vo,Wo); 565 } 566 default: UD2(); 567 } 568 0x0D: decode LEGACY_DECODEVAL { 569 // no prefix 570 0x0: decode OPCODE_OP_BOTTOM3 { 571 0x0: PUNPCKHBW(Pq,Qq); 572 0x1: PUNPCKHWD(Pq,Qq); 573 0x2: PUNPCKHDQ(Pq,Qq); 574 0x3: PACKSSDW(Pq,Qq); 575 0x6: MOVD(Pq,Edp); 576 0x7: MOVQ(Pq,Qq); 577 default: UD2(); 578 } 579 // repe (0xF3) 580 0x4: decode OPCODE_OP_BOTTOM3 { 581 0x7: WarnUnimpl::movdqu_Vo_Wo(); 582 default: UD2(); 583 } 584 // operand size (0x66) 585 0x1: decode OPCODE_OP_BOTTOM3 { 586 0x0: PUNPCKHBW(Vo,Wo); 587 0x1: PUNPCKHWD(Vo,Wo); 588 0x2: PUNPCKHDQ(Vo,Wo); 589 0x3: PACKSSDW(Vo,Wo); 590 0x4: PUNPCKLQDQ(Vo,Wq); 591 0x5: PUNPCKHQDQ(Vo,Wq); 592 0x6: WarnUnimpl::movd_Vo_Ed(); 593 0x7: WarnUnimpl::movdqa_Vo_Wo(); 594 } 595 default: UD2(); 596 } 597 0x0E: decode LEGACY_DECODEVAL { 598 // no prefix 599 0x0: decode OPCODE_OP_BOTTOM3 { 600 0x0: PSHUFW(Pq,Qq,Ib); 601 //0x1: group12_pshimw(); 602 0x1: decode MODRM_REG { 603 0x2: PSRLW(PRq,Ib); 604 0x4: PSRAW(PRq,Ib); 605 0x6: PSLLW(PRq,Ib); 606 default: UD2(); 607 } 608 //0x2: group13_pshimd(); 609 0x2: decode MODRM_REG { 610 0x2: PSRLD(PRq,Ib); 611 0x4: PSRAD(PRq,Ib); 612 0x6: PSLLD(PRq,Ib); 613 default: UD2(); 614 } 615 //0x3: group14_pshimq(); 616 0x3: decode MODRM_REG { 617 0x2: PSRLQ(PRq,Ib); 618 0x6: PSLLQ(PRq,Ib); 619 default: Inst::UD2(); 620 } 621 0x4: Inst::PCMPEQB(Pq,Qq); 622 0x5: Inst::PCMPEQW(Pq,Qq); 623 0x6: Inst::PCMPEQD(Pq,Qq); 624 0x7: WarnUnimpl::emms(); 625 } 626 // repe (0xF3) 627 0x4: decode OPCODE_OP_BOTTOM3 { 628 0x0: PSHUFHW(Vo,Wo,Ib); 629 default: UD2(); 630 } 631 // operand size (0x66) 632 0x1: decode OPCODE_OP_BOTTOM3 { 633 0x0: PSHUFD(Vo,Wo,Ib); 634 //0x1: group12_pshimw(); 635 0x1: decode MODRM_REG { 636 0x2: PSRLW(VRo,Ib); 637 0x4: PSRAW(VRo,Ib); 638 0x6: PSLLW(VRo,Ib); 639 } 640 //0x2: group13_pshimd(); 641 0x2: decode MODRM_REG { 642 0x2: PSRLD(VRo,Ib); 643 0x4: PSRAD(VRo,Ib); 644 0x6: PSLLD(VRo,Ib); 645 default: UD2(); 646 } 647 //0x3: group14_pshimq(); 648 0x3: decode MODRM_REG { 649 0x2: PSRLQ(VRo,Ib); 650 0x3: WarnUnimpl::psrldq_VRo_Ib(); 651 0x6: PSLLQ(VRo,Ib); 652 0x7: WarnUnimpl::pslldq_VRo_Ib(); 653 default: UD2(); 654 } 655 0x4: PCMPEQB(Vo,Wo); 656 0x5: PCMPEQW(Vo,Wo); 657 0x6: PCMPEQD(Vo,Wo); 658 default: UD2(); 659 } 660 // repne (0xF2) 661 0x8: decode OPCODE_OP_BOTTOM3 { 662 0x0: PSHUFLW(Vo,Wo,Ib); 663 default: UD2(); 664 } 665 default: UD2(); 666 } 667 0x0F: decode LEGACY_DECODEVAL { 668 // no prefix 669 0x0: decode OPCODE_OP_BOTTOM3 { 670 0x0: WarnUnimpl::vmread_Edp_Gdp(); 671 0x1: WarnUnimpl::vmwrite_Gdp_Edp(); 672 0x6: MOVD(Edp,Pdp); 673 0x7: MOVQ(Qq,Pq); 674 default: UD2(); 675 } 676 // repe (0xF3) 677 0x4: decode OPCODE_OP_BOTTOM3 { 678 0x6: MOVQ(Vq,Wq); 679 0x7: WarnUnimpl::movdqu_Wo_Vo(); 680 default: UD2(); 681 } 682 // operand size (0x66) 683 0x1: decode OPCODE_OP_BOTTOM3 { 684 0x4: WarnUnimpl::haddpd_Vo_Wo(); 685 0x5: WarnUnimpl::hsubpd_Vo_Wo(); 686 0x6: WarnUnimpl::movd_Ed_Vd(); 687 0x7: WarnUnimpl::movdqa_Wo_Vo(); 688 default: UD2(); 689 } 690 // repne (0xF2) 691 0x8: decode OPCODE_OP_BOTTOM3 { 692 0x4: WarnUnimpl::haddps_Vo_Wo(); 693 0x5: WarnUnimpl::hsubps_Vo_Wo(); 694 default: UD2(); 695 } 696 default: UD2(); 697 } 698 0x10: decode OPCODE_OP_BOTTOM3 { 699 0x0: JO(Jz); 700 0x1: JNO(Jz); 701 0x2: JB(Jz); 702 0x3: JNB(Jz); 703 0x4: JZ(Jz); 704 0x5: JNZ(Jz); 705 0x6: JBE(Jz); 706 0x7: JNBE(Jz); 707 } 708 0x11: decode OPCODE_OP_BOTTOM3 { 709 0x0: JS(Jz); 710 0x1: JNS(Jz); 711 0x2: JP(Jz); 712 0x3: JNP(Jz); 713 0x4: JL(Jz); 714 0x5: JNL(Jz); 715 0x6: JLE(Jz); 716 0x7: JNLE(Jz); 717 } 718 0x12: decode OPCODE_OP_BOTTOM3 { 719 0x0: SETO(Eb); 720 0x1: SETNO(Eb); 721 0x2: SETB(Eb); 722 0x3: SETNB(Eb); 723 0x4: SETZ(Eb); 724 0x5: SETNZ(Eb); 725 0x6: SETBE(Eb); 726 0x7: SETNBE(Eb); 727 } 728 0x13: decode OPCODE_OP_BOTTOM3 { 729 0x0: SETS(Eb); 730 0x1: SETNS(Eb); 731 0x2: SETP(Eb); 732 0x3: SETNP(Eb); 733 0x4: SETL(Eb); 734 0x5: SETNL(Eb); 735 0x6: SETLE(Eb); 736 0x7: SETNLE(Eb); 737 } 738 } 739 0x14: decode OPCODE_OP_BOTTOM3 { 740 0x0: push_fs(); 741 0x1: pop_fs(); 742 0x2: CPUIDInst::CPUID({{ 743 CpuidResult result; 744 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0), result); 745 Rax = result.rax; 746 Rbx = result.rbx; 747 Rcx = result.rcx; 748 Rdx = result.rdx; 749 }}); 750 0x3: Inst::BT(Ev,Gv); 751 0x4: Inst::SHLD(Ev,Gv,Ib); 752 0x5: Inst::SHLD(Ev,Gv); 753 default: Inst::UD2(); 754 } 755 0x15: decode OPCODE_OP_BOTTOM3 { 756 0x0: push_gs(); 757 0x1: pop_gs(); 758 0x2: rsm_smm(); 759 0x3: Inst::BTS(Ev,Gv); 760 0x4: Inst::SHRD(Ev,Gv,Ib); 761 0x5: Inst::SHRD(Ev,Gv); 762 //0x6: group15(); 763 0x6: decode MODRM_MOD { 764 0x3: decode MODRM_REG { 765 0x5: BasicOperate::LFENCE( 766 {{/*Nothing*/}}, IsReadBarrier); 767 0x6: BasicOperate::MFENCE( 768 {{/*Nothing*/}}, IsMemBarrier); 769 0x7: BasicOperate::SFENCE( 770 {{/*Nothing*/}}, IsWriteBarrier); 771 default: Inst::UD2(); 772 } 773 default: decode MODRM_REG { 774 0x0: fxsave(); 775 0x1: fxrstor(); 776 0x2: Inst::LDMXCSR(Md); 777 0x3: Inst::STMXCSR(Md); 778 0x4: xsave(); 779 0x5: xrstor(); 780 0x6: Inst::UD2(); 781 0x7: clflush(); 782 } 783 } 784 0x7: Inst::IMUL(Gv,Ev); 785 } 786 format Inst { 787 0x16: decode OPCODE_OP_BOTTOM3 { 788 0x0: CMPXCHG(Eb,Gb); 789 0x1: CMPXCHG(Ev,Gv); 790 0x2: WarnUnimpl::lss_Gz_Mp(); 791 0x3: BTR(Ev,Gv); 792 0x4: WarnUnimpl::lfs_Gz_Mp(); 793 0x5: WarnUnimpl::lgs_Gz_Mp(); 794 //The size of the second operand in these instructions 795 //should really be "b" or "w", but it's set to v in order 796 //to have a consistent register size. This shouldn't 797 //affect behavior. 798 0x6: MOVZX_B(Gv,Ev); 799 0x7: MOVZX_W(Gv,Ev); 800 } 801 0x17: decode OPCODE_OP_BOTTOM3 { 802 0x0: decode LEGACY_REP { 803 0x0: WarnUnimpl::jmpe_Jz(); 804 0x1: WarnUnimpl::popcnt_Gv_Ev(); 805 } 806 //0x1: group10_UD2(); 807 0x1: UD2(); 808 //0x2: group8_Ev_Ib(); 809 0x2: decode MODRM_REG { 810 0x4: BT(Ev,Ib); 811 0x5: BTS(Ev,Ib); 812 0x6: BTR(Ev,Ib); 813 0x7: BTC(Ev,Ib); 814 default: UD2(); 815 } 816 0x3: BTC(Ev,Gv); 817 0x4: BSF(Gv,Ev); 818 0x5: BSR(Gv,Ev); 819 //The size of the second operand in these instructions 820 //should really be "b" or "w", but it's set to v in order 821 //to have a consistent register size. This shouldn't 822 //affect behavior. 823 0x6: MOVSX_B(Gv,Ev); 824 0x7: MOVSX_W(Gv,Ev); 825 } 826 0x18: decode OPCODE_OP_BOTTOM3 { 827 0x0: XADD(Eb,Gb); 828 0x1: XADD(Ev,Gv); 829 //0x7: group9(); 830 0x7: decode MODRM_REG { 831 //Also CMPXCHG16B 832 0x1: CMPXCHG8B(Mdp); 833 0x6: decode LEGACY_OP { 834 0x1: WarnUnimpl::vmclear_Mq(); 835 default: decode LEGACY_REP { 836 0x1: WarnUnimpl::vmxon_Mq(); 837 0x0: WarnUnimpl::vmptrld_Mq(); 838 } 839 } 840 0x7: WarnUnimpl::vmptrst_Mq(); 841 default: UD2(); 842 } 843 default: decode LEGACY_DECODEVAL { 844 // no prefix 845 0x0: decode OPCODE_OP_BOTTOM3 { 846 0x2: CMPPS(Vo,Wo,Ib); 847 0x3: MOVNTI(Mdp,Gdp); 848 0x4: PINSRW(Pq,Ew,Ib); 849 0x5: PEXTRW(Gd,PRq,Ib); 850 0x6: SHUFPS(Vps,Wps,Ib); 851 } 852 // repe (0xF3) 853 0x4: decode OPCODE_OP_BOTTOM3 { 854 0x2: CMPSS(Vd,Wd,Ib); 855 default: UD2(); 856 } 857 // operand size (0x66) 858 0x1: decode OPCODE_OP_BOTTOM3 { 859 0x2: CMPPD(Vo,Wo,Ib); 860 0x4: PINSRW(Vdw,Ew,Ib); 861 0x5: PEXTRW(Gd,VRdq,Ib); 862 0x6: SHUFPD(Vpd,Wpd,Ib); 863 default: UD2(); 864 } 865 // repne (0xF2) 866 0x8: decode OPCODE_OP_BOTTOM3 { 867 0x2: CMPSD(Vq,Wq,Ib); 868 default: UD2(); 869 } 870 default: UD2(); 871 } 872 } 873 0x19: decode OPSIZE { 874 4: BSWAP_D(Bd); 875 8: BSWAP_Q(Bq); 876 default: UD2(); 877 } 878 0x1A: decode LEGACY_DECODEVAL { 879 // no prefix 880 0x0: decode OPCODE_OP_BOTTOM3 { 881 0x1: PSRLW(Pq,Qq); 882 0x2: PSRLD(Pq,Qq); 883 0x3: PSRLQ(Pq,Qq); 884 0x4: PADDQ(Pq,Qq); 885 0x5: PMULLW(Pq,Qq); 886 0x7: PMOVMSKB(Gd,PRq); 887 default: UD2(); 888 } 889 // repe (0xF3) 890 0x4: decode OPCODE_OP_BOTTOM3 { 891 0x6: MOVQ2DQ(Vo,PRq); 892 default: UD2(); 893 } 894 // operand size (0x66) 895 0x1: decode OPCODE_OP_BOTTOM3 { 896 0x0: WarnUnimpl::addsubpd_Vo_Wo(); 897 0x1: PSRLW(Vo,Wo); 898 0x2: PSRLD(Vo,Wo); 899 0x3: PSRLQ(Vo,Wo); 900 0x4: PADDQ(Vo,Wo); 901 0x5: PMULLW(Vo,Wo); 902 0x6: MOVQ(Wq,Vq); 903 0x7: PMOVMSKB(Gd,VRo); 904 } 905 // repne (0xF2) 906 0x8: decode OPCODE_OP_BOTTOM3 { 907 0x0: WarnUnimpl::addsubps_Vo_Wo(); 908 0x6: MOVDQ2Q(Pq,VRq); 909 default: UD2(); 910 } 911 default: UD2(); 912 } 913 0x1B: decode LEGACY_DECODEVAL { 914 // no prefix 915 0x0: decode OPCODE_OP_BOTTOM3 { 916 0x0: PSUBUSB(Pq,Qq); 917 0x1: PSUBUSW(Pq,Qq); 918 0x2: PMINUB(Pq,Qq); 919 0x3: PAND(Pq,Qq); 920 0x4: PADDUSB(Pq,Qq); 921 0x5: PADDUSW(Pq,Qq); 922 0x6: PMAXUB(Pq,Qq); 923 0x7: PANDN(Pq,Qq); 924 } 925 // operand size (0x66) 926 0x1: decode OPCODE_OP_BOTTOM3 { 927 0x0: PSUBUSB(Vo,Wo); 928 0x1: PSUBUSW(Vo,Wo); 929 0x2: PMINUB(Vo,Wo); 930 0x3: PAND(Vo,Wo); 931 0x4: PADDUSB(Vo,Wo); 932 0x5: PADDUSW(Vo,Wo); 933 0x6: PMAXUB(Vo,Wo); 934 0x7: PANDN(Vo,Wo); 935 } 936 default: UD2(); 937 } 938 0x1C: decode LEGACY_DECODEVAL { 939 // no prefix 940 0x0: decode OPCODE_OP_BOTTOM3 { 941 0x0: PAVGB(Pq,Qq); 942 0x1: PSRAW(Pq,Qq); 943 0x2: PSRAD(Pq,Qq); 944 0x3: PAVGW(Pq,Qq); 945 0x4: PMULHUW(Pq,Qq); 946 0x5: PMULHW(Pq,Qq); 947 0x7: WarnUnimpl::movntq_Mq_Pq(); 948 default: UD2(); 949 } 950 // repe (0xF3) 951 0x4: decode OPCODE_OP_BOTTOM3 { 952 0x6: CVTDQ2PD(Vo,Wq); 953 default: UD2(); 954 } 955 // operand size (0x66) 956 0x1: decode OPCODE_OP_BOTTOM3 { 957 0x0: PAVGB(Vo,Wo); 958 0x1: PSRAW(Vo,Wo); 959 0x2: PSRAD(Vo,Wo); 960 0x3: PAVGW(Vo,Wo); 961 0x4: PMULHUW(Vo,Wo); 962 0x5: PMULHW(Vo,Wo); 963 0x6: CVTTPD2DQ(Vo,Wo); 964 0x7: WarnUnimpl::movntdq_Mo_Vo(); 965 } 966 // repne (0xF2) 967 0x8: decode OPCODE_OP_BOTTOM3 { 968 0x6: CVTPD2DQ(Vo,Wo); 969 default: UD2(); 970 } 971 default: UD2(); 972 } 973 0x1D: decode LEGACY_DECODEVAL { 974 // no prefix 975 0x0: decode OPCODE_OP_BOTTOM3 { 976 0x0: PSUBSB(Pq,Qq); 977 0x1: PSUBSW(Pq,Qq); 978 0x2: PMINSW(Pq,Qq); 979 0x3: POR(Pq,Qq); 980 0x4: PADDSB(Pq,Qq); 981 0x5: PADDSW(Pq,Qq); 982 0x6: PMAXSW(Pq,Qq); 983 0x7: PXOR(Pq,Qq); 984 } 985 // operand size (0x66) 986 0x1: decode OPCODE_OP_BOTTOM3 { 987 0x0: PSUBSB(Vo,Wo); 988 0x1: PSUBSW(Vo,Wo); 989 0x2: PMINSW(Vo,Wo); 990 0x3: POR(Vo,Wo); 991 0x4: PADDSB(Vo,Wo); 992 0x5: PADDSW(Vo,Wo); 993 0x6: PMAXSW(Vo,Wo); 994 0x7: PXOR(Vo,Wo); 995 } 996 default: UD2(); 997 } 998 0x1E: decode LEGACY_DECODEVAL { 999 // no prefix 1000 0x0: decode OPCODE_OP_BOTTOM3 { 1001 0x1: PSLLW(Pq,Qq); 1002 0x2: PSLLD(Pq,Qq); 1003 0x3: PSLLQ(Pq,Qq); 1004 0x4: PMULUDQ(Pq,Qq); 1005 0x5: PMADDWD(Pq,Qq); 1006 0x6: PSADBW(Pq,Qq); 1007 0x7: MASKMOVQ(Pq,PRq); 1008 default: UD2(); 1009 } 1010 // operand size (0x66) 1011 0x1: decode OPCODE_OP_BOTTOM3 { 1012 0x1: PSLLW(Vo,Wo); 1013 0x2: PSLLD(Vo,Wo); 1014 0x3: PSLLQ(Vo,Wo); 1015 0x4: PMULUDQ(Vo,Wo); 1016 0x5: PMADDWD(Vo,Wo); 1017 0x6: PSADBW(Vo,Wo); 1018 0x7: MASKMOVDQU(Vo,VRo); 1019 default: UD2(); 1020 } 1021 // repne (0xF2) 1022 0x8: decode OPCODE_OP_BOTTOM3 { 1023 0x0: WarnUnimpl::lddqu_Vo_Mo(); 1024 default: UD2(); 1025 } 1026 default: UD2(); 1027 } 1028 0x1F: decode LEGACY_DECODEVAL { 1029 // no prefix 1030 0x0: decode OPCODE_OP_BOTTOM3 { 1031 0x0: PSUBB(Pq,Qq); 1032 0x1: PSUBW(Pq,Qq); 1033 0x2: PSUBD(Pq,Qq); 1034 0x3: PSUBQ(Pq,Qq); 1035 0x4: PADDB(Pq,Qq); 1036 0x5: PADDW(Pq,Qq); 1037 0x6: PADDD(Pq,Qq); 1038 0x7: UD2(); 1039 } 1040 // operand size (0x66) 1041 0x1: decode OPCODE_OP_BOTTOM3 { 1042 0x0: PSUBB(Vo,Wo); 1043 0x1: PSUBW(Vo,Wo); 1044 0x2: PSUBD(Vo,Wo); 1045 0x3: PSUBQ(Vo,Wo); 1046 0x4: PADDB(Vo,Wo); 1047 0x5: PADDW(Vo,Wo); 1048 0x6: PADDD(Vo,Wo); 1049 0x7: UD2(); 1050 } 1051 default: UD2(); 1052 } 1053 } 1054 default: FailUnimpl::twoByteOps(); 1055 } 1056 } 1057 default: M5InternalError::error( 1058 {{"Unexpected first opcode byte in two byte opcode!"}}); 1059} 1060