two_byte_opcodes.isa revision 9038:d7ddf3266d46
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 0x05: decode FullSystemInt { 220 0: SyscallInst::syscall('xc->syscall(Rax)', 221 IsSyscall, IsNonSpeculative, IsSerializeAfter); 222 default: decode MODE_MODE { 223 0x0: decode MODE_SUBMODE { 224 0x0: Inst::SYSCALL_64(); 225 0x1: Inst::SYSCALL_COMPAT(); 226 } 227 0x1: Inst::SYSCALL_LEGACY(); 228 } 229 } 230 0x06: Inst::CLTS(); 231 0x07: decode MODE_SUBMODE { 232 0x0: decode OPSIZE { 233 // Return to 64 bit mode. 234 0x8: Inst::SYSRET_TO_64(); 235 // Return to compatibility mode. 236 default: Inst::SYSRET_TO_COMPAT(); 237 } 238 default: Inst::SYSRET_NON_64(); 239 } 240 } 241 0x01: decode OPCODE_OP_BOTTOM3 { 242 0x0: invd(); 243 0x1: wbinvd(); 244 0x2: Inst::UD2(); 245 0x3: Inst::UD2(); 246 0x4: Inst::UD2(); 247 0x5: Inst::PREFETCH(Mb); 248 0x6: FailUnimpl::femms(); 249 0x7: decode IMMEDIATE { 250 0x0C: pi2fw_Pq_Qq(); 251 0x0D: pi2fd_Pq_Qq(); 252 0x1C: pf2iw_Pq_Qq(); 253 0x1D: pf2id_Pq_Qq(); 254 0x8A: pfnacc_Pq_Qq(); 255 0x8E: pfpnacc_Pq_Qq(); 256 0x90: pfcmpge_Pq_Qq(); 257 0x94: pfmin_Pq_Qq(); 258 0x96: pfrcp_Pq_Qq(); 259 0x97: pfrsqrt_Pq_Qq(); 260 0x9A: Inst::PFSUB(Pq,Qq); 261 0x9E: pfadd_Pq_Qq(); 262 0xA0: pfcmpgt_Pq_Qq(); 263 0xA4: pfmax_Pq_Qq(); 264 0xA6: pfrcpit1_Pq_Qq(); 265 0xA7: pfrsqit1_Pq_Qq(); 266 0xAA: Inst::PFSUBR(Pq,Qq); 267 0xAE: pfacc_Pq_Qq(); 268 0xB0: pfcmpeq_Pq_Qq(); 269 0xB4: Inst::PFMUL(Pq,Qq); 270 0xB6: pfrcpit2_Pq_Qq(); 271 0xB7: Inst::PMULHRW(Pq,Qq); 272 0xBB: pswapd_Pq_Qq(); 273 0xBF: pavgusb_Pq_Qq(); 274 default: Inst::UD2(); 275 } 276 } 277 format Inst{ 278 0x02: decode LEGACY_DECODEVAL { 279 // no prefix 280 0x0: decode OPCODE_OP_BOTTOM3 { 281 0x0: MOVUPS(Vo,Wo); 282 0x1: MOVUPS(Wo,Vo); 283 0x2: decode MODRM_MOD { 284 0x3: MOVHLPS(Vps,VRq); 285 default: MOVLPS(Vps,Mq); 286 } 287 0x3: MOVLPS(Mq,Vps); 288 0x4: UNPCKLPS(Vps,Wq); 289 0x5: UNPCKHPS(Vps,Wq); 290 0x6: decode MODRM_MOD { 291 0x3: MOVLHPS(Vps,VRq); 292 default: MOVHPS(Vps,Mq); 293 } 294 0x7: MOVHPS(Mq,Vq); 295 } 296 // repe (0xF3) 297 0x4: decode OPCODE_OP_BOTTOM3 { 298 0x0: MOVSS(Vd,Wd); 299 0x1: MOVSS(Wd,Vd); 300 0x2: WarnUnimpl::movsldup_Vo_Wo(); 301 0x6: WarnUnimpl::movshdup_Vo_Wo(); 302 default: UD2(); 303 } 304 // operand size (0x66) 305 0x1: decode OPCODE_OP_BOTTOM3 { 306 0x0: MOVUPD(Vo,Wo); 307 0x1: MOVUPD(Wo,Vo); 308 0x2: MOVLPD(Vq,Mq); 309 0x3: MOVLPD(Mq,Vq); 310 0x4: UNPCKLPD(Vo,Wq); 311 0x5: UNPCKHPD(Vo,Wo); 312 0x6: MOVHPD(Vq,Mq); 313 0x7: MOVHPD(Mq,Vq); 314 } 315 // repne (0xF2) 316 0x8: decode OPCODE_OP_BOTTOM3 { 317 0x0: MOVSD(Vq,Wq); 318 0x1: MOVSD(Wq,Vq); 319 0x2: MOVDDUP(Vo,Wq); 320 default: UD2(); 321 } 322 default: UD2(); 323 } 324 0x03: decode OPCODE_OP_BOTTOM3 { 325 //group16(); 326 0x0: decode MODRM_REG { 327 0x0: WarnUnimpl::prefetch_nta(); 328 0x1: PREFETCH_T0(Mb); 329 0x2: WarnUnimpl::prefetch_t1(); 330 0x3: WarnUnimpl::prefetch_t2(); 331 default: HINT_NOP(); 332 } 333 0x1: HINT_NOP(); 334 0x2: HINT_NOP(); 335 0x3: HINT_NOP(); 336 0x4: HINT_NOP(); 337 0x5: HINT_NOP(); 338 0x6: HINT_NOP(); 339 0x7: HINT_NOP(); 340 } 341 0x04: decode LEGACY_DECODEVAL { 342 // no prefix 343 0x0: decode OPCODE_OP_BOTTOM3 { 344 0x0: MOV(Rd,Cd); 345 0x1: MOV(Rd,Dd); 346 0x2: MOV(Cd,Rd); 347 0x3: MOV(Dd,Rd); 348 default: UD2(); 349 } 350 default: UD2(); 351 } 352 0x05: decode LEGACY_DECODEVAL { 353 // no prefix 354 0x0: decode OPCODE_OP_BOTTOM3 { 355 //These moves should really use size o (octword), but 356 //because they are split in two, they use q (quadword). 357 0x0: MOVAPS(Vq,Wq); 358 0x1: MOVAPS(Wq,Vq); 359 0x2: CVTPI2PS(Vq,Qq); 360 0x3: WarnUnimpl::movntps_Mo_Vo(); 361 0x4: CVTTPS2PI(Pq,Wq); 362 0x5: CVTPS2PI(Pq,Wq); 363 0x6: UCOMISS(Vd,Wd); 364 0x7: COMISS(Vd,Wd); 365 } 366 // repe (0xF3) 367 0x4: decode OPCODE_OP_BOTTOM3 { 368 0x2: CVTSI2SS(Vd,Ed); 369 0x4: CVTTSS2SI(Gd,Wd); 370 0x5: CVTSS2SI(Gd,Wd); 371 default: UD2(); 372 } 373 // operand size (0x66) 374 0x1: decode OPCODE_OP_BOTTOM3 { 375 0x0: MOVAPD(Vo,Wo); 376 0x1: MOVAPD(Wo,Vo); 377 0x2: CVTPI2PD(Vo,Qq); 378 0x3: WarnUnimpl::movntpd_Mo_Vo(); 379 0x4: CVTTPD2PI(Pq,Wo); 380 0x5: CVTPD2PI(Pq,Wo); 381 0x6: UCOMISD(Vq,Wq); 382 0x7: COMISD(Vq,Wq); 383 } 384 // repne (0xF2) 385 0x8: decode OPCODE_OP_BOTTOM3 { 386 // The size of the V operand should be q, not dp 387 0x2: CVTSI2SD(Vdp,Edp); 388 // The size of the W operand should be q, not dp 389 0x4: CVTTSD2SI(Gdp,Wdp); 390 0x5: CVTSD2SI(Gd,Wq); 391 default: UD2(); 392 } 393 default: UD2(); 394 } 395 } 396 0x06: decode OPCODE_OP_BOTTOM3 { 397 0x0: Inst::WRMSR(); 398 0x1: Inst::RDTSC(); 399 0x2: Inst::RDMSR(); 400 0x3: rdpmc(); 401 0x4: decode FullSystemInt { 402 0: SyscallInst::sysenter('xc->syscall(Rax)', 403 IsSyscall, IsNonSpeculative, IsSerializeAfter); 404 default: sysenter(); 405 } 406 0x5: sysexit(); 407 0x6: Inst::UD2(); 408 0x7: getsec(); 409 } 410 0x07: decode OPCODE_OP_BOTTOM3 { 411 0x0: M5InternalError::error( 412 {{"Three byte opcode shouldn't be handled by " 413 "two_byte_opcodes.isa!"}}); 414 0x2: M5InternalError::error( 415 {{"Three byte opcode shouldn't be handled by " 416 "two_byte_opcodes.isa!"}}); 417 default: UD2(); 418 } 419 format Inst { 420 0x08: decode OPCODE_OP_BOTTOM3 { 421 0x0: CMOVO(Gv,Ev); 422 0x1: CMOVNO(Gv,Ev); 423 0x2: CMOVB(Gv,Ev); 424 0x3: CMOVNB(Gv,Ev); 425 0x4: CMOVZ(Gv,Ev); 426 0x5: CMOVNZ(Gv,Ev); 427 0x6: CMOVBE(Gv,Ev); 428 0x7: CMOVNBE(Gv,Ev); 429 } 430 0x09: decode OPCODE_OP_BOTTOM3 { 431 0x0: CMOVS(Gv,Ev); 432 0x1: CMOVNS(Gv,Ev); 433 0x2: CMOVP(Gv,Ev); 434 0x3: CMOVNP(Gv,Ev); 435 0x4: CMOVL(Gv,Ev); 436 0x5: CMOVNL(Gv,Ev); 437 0x6: CMOVLE(Gv,Ev); 438 0x7: CMOVNLE(Gv,Ev); 439 } 440 0x0A: decode LEGACY_DECODEVAL { 441 // no prefix 442 0x0: decode OPCODE_OP_BOTTOM3 { 443 0x0: MOVMSKPS(Gd,VRo); 444 0x1: SQRTPS(Vo,Wo); 445 0x2: WarnUnimpl::rqsrtps_Vo_Wo(); 446 0x3: WarnUnimpl::rcpps_Vo_Wo(); 447 0x4: ANDPS(Vo,Wo); 448 0x5: ANDNPS(Vo,Wo); 449 0x6: ORPS(Vo,Wo); 450 0x7: XORPS(Vo,Wo); 451 } 452 // repe (0xF3) 453 0x4: decode OPCODE_OP_BOTTOM3 { 454 0x1: SQRTSS(Vd,Wd); 455 0x2: WarnUnimpl::rsqrtss_Vd_Wd(); 456 0x3: WarnUnimpl::rcpss_Vd_Wd(); 457 default: UD2(); 458 } 459 // operand size (0x66) 460 0x1: decode OPCODE_OP_BOTTOM3 { 461 0x0: MOVMSKPD(Gd,VRo); 462 0x1: SQRTPD(Vo,Wo); 463 0x4: ANDPD(Vo,Wo); 464 0x5: ANDNPD(Vo,Wo); 465 0x6: ORPD(Vo,Wo); 466 0x7: XORPD(Vo,Wo); 467 default: UD2(); 468 } 469 // repne (0xF2) 470 0x8: decode OPCODE_OP_BOTTOM3 { 471 0x1: SQRTSD(Vq,Wq); 472 default: UD2(); 473 } 474 default: UD2(); 475 } 476 0x0B: decode LEGACY_DECODEVAL { 477 // no prefix 478 0x0: decode OPCODE_OP_BOTTOM3 { 479 0x0: ADDPS(Vo,Wo); 480 0x1: MULPS(Vo,Wo); 481 0x2: CVTPS2PD(Vo,Wq); 482 0x3: CVTDQ2PS(Vo,Wo); 483 0x4: SUBPS(Vo,Wo); 484 0x5: MINPS(Vo,Wo); 485 0x6: DIVPS(Vo,Wo); 486 0x7: MAXPS(Vo,Wo); 487 } 488 // repe (0xF3) 489 0x4: decode OPCODE_OP_BOTTOM3 { 490 0x0: ADDSS(Vd,Wd); 491 0x1: MULSS(Vd,Wd); 492 0x2: CVTSS2SD(Vq,Wd); 493 0x3: CVTTPS2DQ(Vo,Wo); 494 0x4: SUBSS(Vd,Wd); 495 0x5: MINSS(Vd,Wd); 496 0x6: DIVSS(Vd,Wd); 497 0x7: MAXSS(Vd,Wd); 498 } 499 // operand size (0x66) 500 0x1: decode OPCODE_OP_BOTTOM3 { 501 0x0: ADDPD(Vo,Wo); 502 0x1: MULPD(Vo,Wo); 503 0x2: CVTPD2PS(Vo,Wo); 504 0x3: CVTPS2DQ(Vo,Wo); 505 0x4: SUBPD(Vo,Wo); 506 0x5: MINPD(Vo,Wo); 507 0x6: DIVPD(Vo,Wo); 508 0x7: MAXPD(Vo,Wo); 509 } 510 // repne (0xF2) 511 0x8: decode OPCODE_OP_BOTTOM3 { 512 0x0: ADDSD(Vq,Wq); 513 0x1: MULSD(Vq,Wq); 514 0x2: CVTSD2SS(Vd,Wq); 515 0x4: SUBSD(Vq,Wq); 516 0x5: MINSD(Vq,Wq); 517 0x6: DIVSD(Vq,Wq); 518 0x7: MAXSD(Vq,Wq); 519 default: UD2(); 520 } 521 default: UD2(); 522 } 523 0x0C: decode LEGACY_DECODEVAL { 524 // no prefix 525 0x0: decode OPCODE_OP_BOTTOM3 { 526 0x0: PUNPCKLBW(Pq,Qd); 527 0x1: PUNPCKLWD(Pq,Qd); 528 0x2: PUNPCKLDQ(Pq,Qd); 529 0x3: PACKSSWB(Pq,Qq); 530 0x4: PCMPGTB(Pq,Qq); 531 0x5: PCMPGTW(Pq,Qq); 532 0x6: PCMPGTD(Pq,Qq); 533 0x7: PACKUSWB(Pq,Qq); 534 } 535 // operand size (0x66) 536 0x1: decode OPCODE_OP_BOTTOM3 { 537 0x0: PUNPCKLBW(Vo,Wq); 538 0x1: PUNPCKLWD(Vo,Wq); 539 0x2: PUNPCKLDQ(Vo,Wq); 540 0x3: PACKSSWB(Vo,Wo); 541 0x4: PCMPGTB(Vo,Wo); 542 0x5: PCMPGTW(Vo,Wo); 543 0x6: PCMPGTD(Vo,Wo); 544 0x7: PACKUSWB(Vo,Wo); 545 } 546 default: UD2(); 547 } 548 0x0D: decode LEGACY_DECODEVAL { 549 // no prefix 550 0x0: decode OPCODE_OP_BOTTOM3 { 551 0x0: PUNPCKHBW(Pq,Qq); 552 0x1: PUNPCKHWD(Pq,Qq); 553 0x2: PUNPCKHDQ(Pq,Qq); 554 0x3: PACKSSDW(Pq,Qq); 555 0x6: MOVD(Pq,Edp); 556 0x7: MOVQ(Pq,Qq); 557 default: UD2(); 558 } 559 // repe (0xF3) 560 0x4: decode OPCODE_OP_BOTTOM3 { 561 0x7: MOVDQU(Vo,Wo); 562 default: UD2(); 563 } 564 // operand size (0x66) 565 0x1: decode OPCODE_OP_BOTTOM3 { 566 0x0: PUNPCKHBW(Vo,Wo); 567 0x1: PUNPCKHWD(Vo,Wo); 568 0x2: PUNPCKHDQ(Vo,Wo); 569 0x3: PACKSSDW(Vo,Wo); 570 0x4: PUNPCKLQDQ(Vo,Wq); 571 0x5: PUNPCKHQDQ(Vo,Wq); 572 0x6: MOVD(Vo,Edp); 573 0x7: MOVDQA(Vo,Wo); 574 } 575 default: UD2(); 576 } 577 0x0E: decode LEGACY_DECODEVAL { 578 // no prefix 579 0x0: decode OPCODE_OP_BOTTOM3 { 580 0x0: PSHUFW(Pq,Qq,Ib); 581 //0x1: group12_pshimw(); 582 0x1: decode MODRM_REG { 583 0x2: PSRLW(PRq,Ib); 584 0x4: PSRAW(PRq,Ib); 585 0x6: PSLLW(PRq,Ib); 586 default: UD2(); 587 } 588 //0x2: group13_pshimd(); 589 0x2: decode MODRM_REG { 590 0x2: PSRLD(PRq,Ib); 591 0x4: PSRAD(PRq,Ib); 592 0x6: PSLLD(PRq,Ib); 593 default: UD2(); 594 } 595 //0x3: group14_pshimq(); 596 0x3: decode MODRM_REG { 597 0x2: PSRLQ(PRq,Ib); 598 0x6: PSLLQ(PRq,Ib); 599 default: Inst::UD2(); 600 } 601 0x4: Inst::PCMPEQB(Pq,Qq); 602 0x5: Inst::PCMPEQW(Pq,Qq); 603 0x6: Inst::PCMPEQD(Pq,Qq); 604 0x7: WarnUnimpl::emms(); 605 } 606 // repe (0xF3) 607 0x4: decode OPCODE_OP_BOTTOM3 { 608 0x0: PSHUFHW(Vo,Wo,Ib); 609 default: UD2(); 610 } 611 // operand size (0x66) 612 0x1: decode OPCODE_OP_BOTTOM3 { 613 0x0: PSHUFD(Vo,Wo,Ib); 614 //0x1: group12_pshimw(); 615 0x1: decode MODRM_REG { 616 0x2: PSRLW(VRo,Ib); 617 0x4: PSRAW(VRo,Ib); 618 0x6: PSLLW(VRo,Ib); 619 } 620 //0x2: group13_pshimd(); 621 0x2: decode MODRM_REG { 622 0x2: PSRLD(VRo,Ib); 623 0x4: PSRAD(VRo,Ib); 624 0x6: PSLLD(VRo,Ib); 625 default: UD2(); 626 } 627 //0x3: group14_pshimq(); 628 0x3: decode MODRM_REG { 629 0x2: PSRLQ(VRo,Ib); 630 0x3: PSRLDQ(VRo,Ib); 631 0x6: PSLLQ(VRo,Ib); 632 0x7: PSLLDQ(VRo,Ib); 633 default: UD2(); 634 } 635 0x4: PCMPEQB(Vo,Wo); 636 0x5: PCMPEQW(Vo,Wo); 637 0x6: PCMPEQD(Vo,Wo); 638 default: UD2(); 639 } 640 // repne (0xF2) 641 0x8: decode OPCODE_OP_BOTTOM3 { 642 0x0: PSHUFLW(Vo,Wo,Ib); 643 default: UD2(); 644 } 645 default: UD2(); 646 } 647 0x0F: decode LEGACY_DECODEVAL { 648 // no prefix 649 0x0: decode OPCODE_OP_BOTTOM3 { 650 0x0: WarnUnimpl::vmread_Edp_Gdp(); 651 0x1: WarnUnimpl::vmwrite_Gdp_Edp(); 652 0x6: MOVD(Edp,Pdp); 653 0x7: MOVQ(Qq,Pq); 654 default: UD2(); 655 } 656 // repe (0xF3) 657 0x4: decode OPCODE_OP_BOTTOM3 { 658 0x6: MOVQ(Vq,Wq); 659 0x7: MOVDQU(Wo,Vo); 660 default: UD2(); 661 } 662 // operand size (0x66) 663 0x1: decode OPCODE_OP_BOTTOM3 { 664 0x4: HADDPD(Vo,Wo); 665 0x5: WarnUnimpl::hsubpd_Vo_Wo(); 666 0x6: MOVD(Edp,Vd); 667 0x7: MOVDQA(Wo,Vo); 668 default: UD2(); 669 } 670 // repne (0xF2) 671 0x8: decode OPCODE_OP_BOTTOM3 { 672 0x4: HADDPS(Vo,Wo); 673 0x5: WarnUnimpl::hsubps_Vo_Wo(); 674 default: UD2(); 675 } 676 default: UD2(); 677 } 678 0x10: decode OPCODE_OP_BOTTOM3 { 679 0x0: JO(Jz); 680 0x1: JNO(Jz); 681 0x2: JB(Jz); 682 0x3: JNB(Jz); 683 0x4: JZ(Jz); 684 0x5: JNZ(Jz); 685 0x6: JBE(Jz); 686 0x7: JNBE(Jz); 687 } 688 0x11: decode OPCODE_OP_BOTTOM3 { 689 0x0: JS(Jz); 690 0x1: JNS(Jz); 691 0x2: JP(Jz); 692 0x3: JNP(Jz); 693 0x4: JL(Jz); 694 0x5: JNL(Jz); 695 0x6: JLE(Jz); 696 0x7: JNLE(Jz); 697 } 698 0x12: decode OPCODE_OP_BOTTOM3 { 699 0x0: SETO(Eb); 700 0x1: SETNO(Eb); 701 0x2: SETB(Eb); 702 0x3: SETNB(Eb); 703 0x4: SETZ(Eb); 704 0x5: SETNZ(Eb); 705 0x6: SETBE(Eb); 706 0x7: SETNBE(Eb); 707 } 708 0x13: decode OPCODE_OP_BOTTOM3 { 709 0x0: SETS(Eb); 710 0x1: SETNS(Eb); 711 0x2: SETP(Eb); 712 0x3: SETNP(Eb); 713 0x4: SETL(Eb); 714 0x5: SETNL(Eb); 715 0x6: SETLE(Eb); 716 0x7: SETNLE(Eb); 717 } 718 } 719 0x14: decode OPCODE_OP_BOTTOM3 { 720 0x0: push_fs(); 721 0x1: pop_fs(); 722 0x2: CPUIDInst::CPUID({{ 723 CpuidResult result; 724 bool success = doCpuid(xc->tcBase(), bits(Rax, 31, 0), 725 bits(Rcx, 31, 0), result); 726 if (success) { 727 Rax = result.rax; 728 Rbx = result.rbx; 729 Rcx = result.rcx; 730 Rdx = result.rdx; 731 } else { 732 Rax = Rax; 733 Rbx = Rbx; 734 Rcx = Rcx; 735 Rdx = Rdx; 736 } 737 }}); 738 0x3: Inst::BT(Ev,Gv); 739 0x4: Inst::SHLD(Ev,Gv,Ib); 740 0x5: Inst::SHLD(Ev,Gv); 741 default: Inst::UD2(); 742 } 743 0x15: decode OPCODE_OP_BOTTOM3 { 744 0x0: push_gs(); 745 0x1: pop_gs(); 746 0x2: rsm_smm(); 747 0x3: Inst::BTS(Ev,Gv); 748 0x4: Inst::SHRD(Ev,Gv,Ib); 749 0x5: Inst::SHRD(Ev,Gv); 750 //0x6: group15(); 751 0x6: decode MODRM_MOD { 752 0x3: decode MODRM_REG { 753 0x5: BasicOperate::LFENCE( 754 {{/*Nothing*/}}, IsReadBarrier); 755 0x6: BasicOperate::MFENCE( 756 {{/*Nothing*/}}, IsMemBarrier); 757 0x7: BasicOperate::SFENCE( 758 {{/*Nothing*/}}, IsWriteBarrier); 759 default: Inst::UD2(); 760 } 761 default: decode MODRM_REG { 762 0x0: fxsave(); 763 0x1: fxrstor(); 764 0x2: Inst::LDMXCSR(Md); 765 0x3: Inst::STMXCSR(Md); 766 0x4: xsave(); 767 0x5: xrstor(); 768 0x6: Inst::UD2(); 769 0x7: clflush(); 770 } 771 } 772 0x7: Inst::IMUL(Gv,Ev); 773 } 774 format Inst { 775 0x16: decode OPCODE_OP_BOTTOM3 { 776 0x0: CMPXCHG(Eb,Gb); 777 0x1: CMPXCHG(Ev,Gv); 778 0x2: WarnUnimpl::lss_Gz_Mp(); 779 0x3: BTR(Ev,Gv); 780 0x4: WarnUnimpl::lfs_Gz_Mp(); 781 0x5: WarnUnimpl::lgs_Gz_Mp(); 782 //The size of the second operand in these instructions 783 //should really be "b" or "w", but it's set to v in order 784 //to have a consistent register size. This shouldn't 785 //affect behavior. 786 0x6: MOVZX_B(Gv,Ev); 787 0x7: MOVZX_W(Gv,Ev); 788 } 789 0x17: decode OPCODE_OP_BOTTOM3 { 790 0x0: decode LEGACY_REP { 791 0x0: WarnUnimpl::jmpe_Jz(); 792 0x1: WarnUnimpl::popcnt_Gv_Ev(); 793 } 794 //0x1: group10_UD2(); 795 0x1: UD2(); 796 //0x2: group8_Ev_Ib(); 797 0x2: decode MODRM_REG { 798 0x4: BT(Ev,Ib); 799 0x5: BTS(Ev,Ib); 800 0x6: BTR(Ev,Ib); 801 0x7: BTC(Ev,Ib); 802 default: UD2(); 803 } 804 0x3: BTC(Ev,Gv); 805 0x4: BSF(Gv,Ev); 806 0x5: BSR(Gv,Ev); 807 //The size of the second operand in these instructions 808 //should really be "b" or "w", but it's set to v in order 809 //to have a consistent register size. This shouldn't 810 //affect behavior. 811 0x6: MOVSX_B(Gv,Ev); 812 0x7: MOVSX_W(Gv,Ev); 813 } 814 0x18: decode OPCODE_OP_BOTTOM3 { 815 0x0: XADD(Eb,Gb); 816 0x1: XADD(Ev,Gv); 817 //0x7: group9(); 818 0x7: decode MODRM_REG { 819 //Also CMPXCHG16B 820 0x1: CMPXCHG8B(Mdp); 821 0x6: decode LEGACY_OP { 822 0x1: WarnUnimpl::vmclear_Mq(); 823 default: decode LEGACY_REP { 824 0x1: WarnUnimpl::vmxon_Mq(); 825 0x0: WarnUnimpl::vmptrld_Mq(); 826 } 827 } 828 0x7: WarnUnimpl::vmptrst_Mq(); 829 default: UD2(); 830 } 831 default: decode LEGACY_DECODEVAL { 832 // no prefix 833 0x0: decode OPCODE_OP_BOTTOM3 { 834 0x2: CMPPS(Vo,Wo,Ib); 835 0x3: MOVNTI(Mdp,Gdp); 836 0x4: PINSRW(Pq,Ew,Ib); 837 0x5: PEXTRW(Gd,PRq,Ib); 838 0x6: SHUFPS(Vps,Wps,Ib); 839 } 840 // repe (0xF3) 841 0x4: decode OPCODE_OP_BOTTOM3 { 842 0x2: CMPSS(Vd,Wd,Ib); 843 default: UD2(); 844 } 845 // operand size (0x66) 846 0x1: decode OPCODE_OP_BOTTOM3 { 847 0x2: CMPPD(Vo,Wo,Ib); 848 0x4: PINSRW(Vdw,Ew,Ib); 849 0x5: PEXTRW(Gd,VRdq,Ib); 850 0x6: SHUFPD(Vpd,Wpd,Ib); 851 default: UD2(); 852 } 853 // repne (0xF2) 854 0x8: decode OPCODE_OP_BOTTOM3 { 855 0x2: CMPSD(Vq,Wq,Ib); 856 default: UD2(); 857 } 858 default: UD2(); 859 } 860 } 861 0x19: decode OPSIZE { 862 4: BSWAP_D(Bd); 863 8: BSWAP_Q(Bq); 864 default: UD2(); 865 } 866 0x1A: decode LEGACY_DECODEVAL { 867 // no prefix 868 0x0: decode OPCODE_OP_BOTTOM3 { 869 0x1: PSRLW(Pq,Qq); 870 0x2: PSRLD(Pq,Qq); 871 0x3: PSRLQ(Pq,Qq); 872 0x4: PADDQ(Pq,Qq); 873 0x5: PMULLW(Pq,Qq); 874 0x7: PMOVMSKB(Gd,PRq); 875 default: UD2(); 876 } 877 // repe (0xF3) 878 0x4: decode OPCODE_OP_BOTTOM3 { 879 0x6: MOVQ2DQ(Vo,PRq); 880 default: UD2(); 881 } 882 // operand size (0x66) 883 0x1: decode OPCODE_OP_BOTTOM3 { 884 0x0: WarnUnimpl::addsubpd_Vo_Wo(); 885 0x1: PSRLW(Vo,Wo); 886 0x2: PSRLD(Vo,Wo); 887 0x3: PSRLQ(Vo,Wo); 888 0x4: PADDQ(Vo,Wo); 889 0x5: PMULLW(Vo,Wo); 890 0x6: MOVQ(Wq,Vq); 891 0x7: PMOVMSKB(Gd,VRo); 892 } 893 // repne (0xF2) 894 0x8: decode OPCODE_OP_BOTTOM3 { 895 0x0: WarnUnimpl::addsubps_Vo_Wo(); 896 0x6: MOVDQ2Q(Pq,VRq); 897 default: UD2(); 898 } 899 default: UD2(); 900 } 901 0x1B: decode LEGACY_DECODEVAL { 902 // no prefix 903 0x0: decode OPCODE_OP_BOTTOM3 { 904 0x0: PSUBUSB(Pq,Qq); 905 0x1: PSUBUSW(Pq,Qq); 906 0x2: PMINUB(Pq,Qq); 907 0x3: PAND(Pq,Qq); 908 0x4: PADDUSB(Pq,Qq); 909 0x5: PADDUSW(Pq,Qq); 910 0x6: PMAXUB(Pq,Qq); 911 0x7: PANDN(Pq,Qq); 912 } 913 // operand size (0x66) 914 0x1: decode OPCODE_OP_BOTTOM3 { 915 0x0: PSUBUSB(Vo,Wo); 916 0x1: PSUBUSW(Vo,Wo); 917 0x2: PMINUB(Vo,Wo); 918 0x3: PAND(Vo,Wo); 919 0x4: PADDUSB(Vo,Wo); 920 0x5: PADDUSW(Vo,Wo); 921 0x6: PMAXUB(Vo,Wo); 922 0x7: PANDN(Vo,Wo); 923 } 924 default: UD2(); 925 } 926 0x1C: decode LEGACY_DECODEVAL { 927 // no prefix 928 0x0: decode OPCODE_OP_BOTTOM3 { 929 0x0: PAVGB(Pq,Qq); 930 0x1: PSRAW(Pq,Qq); 931 0x2: PSRAD(Pq,Qq); 932 0x3: PAVGW(Pq,Qq); 933 0x4: PMULHUW(Pq,Qq); 934 0x5: PMULHW(Pq,Qq); 935 0x7: WarnUnimpl::movntq_Mq_Pq(); 936 default: UD2(); 937 } 938 // repe (0xF3) 939 0x4: decode OPCODE_OP_BOTTOM3 { 940 0x6: CVTDQ2PD(Vo,Wq); 941 default: UD2(); 942 } 943 // operand size (0x66) 944 0x1: decode OPCODE_OP_BOTTOM3 { 945 0x0: PAVGB(Vo,Wo); 946 0x1: PSRAW(Vo,Wo); 947 0x2: PSRAD(Vo,Wo); 948 0x3: PAVGW(Vo,Wo); 949 0x4: PMULHUW(Vo,Wo); 950 0x5: PMULHW(Vo,Wo); 951 0x6: CVTTPD2DQ(Vo,Wo); 952 0x7: WarnUnimpl::movntdq_Mo_Vo(); 953 } 954 // repne (0xF2) 955 0x8: decode OPCODE_OP_BOTTOM3 { 956 0x6: CVTPD2DQ(Vo,Wo); 957 default: UD2(); 958 } 959 default: UD2(); 960 } 961 0x1D: decode LEGACY_DECODEVAL { 962 // no prefix 963 0x0: decode OPCODE_OP_BOTTOM3 { 964 0x0: PSUBSB(Pq,Qq); 965 0x1: PSUBSW(Pq,Qq); 966 0x2: PMINSW(Pq,Qq); 967 0x3: POR(Pq,Qq); 968 0x4: PADDSB(Pq,Qq); 969 0x5: PADDSW(Pq,Qq); 970 0x6: PMAXSW(Pq,Qq); 971 0x7: PXOR(Pq,Qq); 972 } 973 // operand size (0x66) 974 0x1: decode OPCODE_OP_BOTTOM3 { 975 0x0: PSUBSB(Vo,Wo); 976 0x1: PSUBSW(Vo,Wo); 977 0x2: PMINSW(Vo,Wo); 978 0x3: POR(Vo,Wo); 979 0x4: PADDSB(Vo,Wo); 980 0x5: PADDSW(Vo,Wo); 981 0x6: PMAXSW(Vo,Wo); 982 0x7: PXOR(Vo,Wo); 983 } 984 default: UD2(); 985 } 986 0x1E: decode LEGACY_DECODEVAL { 987 // no prefix 988 0x0: decode OPCODE_OP_BOTTOM3 { 989 0x1: PSLLW(Pq,Qq); 990 0x2: PSLLD(Pq,Qq); 991 0x3: PSLLQ(Pq,Qq); 992 0x4: PMULUDQ(Pq,Qq); 993 0x5: PMADDWD(Pq,Qq); 994 0x6: PSADBW(Pq,Qq); 995 0x7: MASKMOVQ(Pq,PRq); 996 default: UD2(); 997 } 998 // operand size (0x66) 999 0x1: decode OPCODE_OP_BOTTOM3 { 1000 0x1: PSLLW(Vo,Wo); 1001 0x2: PSLLD(Vo,Wo); 1002 0x3: PSLLQ(Vo,Wo); 1003 0x4: PMULUDQ(Vo,Wo); 1004 0x5: PMADDWD(Vo,Wo); 1005 0x6: PSADBW(Vo,Wo); 1006 0x7: MASKMOVDQU(Vo,VRo); 1007 default: UD2(); 1008 } 1009 // repne (0xF2) 1010 0x8: decode OPCODE_OP_BOTTOM3 { 1011 0x0: WarnUnimpl::lddqu_Vo_Mo(); 1012 default: UD2(); 1013 } 1014 default: UD2(); 1015 } 1016 0x1F: decode LEGACY_DECODEVAL { 1017 // no prefix 1018 0x0: decode OPCODE_OP_BOTTOM3 { 1019 0x0: PSUBB(Pq,Qq); 1020 0x1: PSUBW(Pq,Qq); 1021 0x2: PSUBD(Pq,Qq); 1022 0x3: PSUBQ(Pq,Qq); 1023 0x4: PADDB(Pq,Qq); 1024 0x5: PADDW(Pq,Qq); 1025 0x6: PADDD(Pq,Qq); 1026 0x7: UD2(); 1027 } 1028 // operand size (0x66) 1029 0x1: decode OPCODE_OP_BOTTOM3 { 1030 0x0: PSUBB(Vo,Wo); 1031 0x1: PSUBW(Vo,Wo); 1032 0x2: PSUBD(Vo,Wo); 1033 0x3: PSUBQ(Vo,Wo); 1034 0x4: PADDB(Vo,Wo); 1035 0x5: PADDW(Vo,Wo); 1036 0x6: PADDD(Vo,Wo); 1037 0x7: UD2(); 1038 } 1039 default: UD2(); 1040 } 1041 } 1042 default: FailUnimpl::twoByteOps(); 1043 } 1044 } 1045 default: M5InternalError::error( 1046 {{"Unexpected first opcode byte in two byte opcode!"}}); 1047} 1048