two_byte_opcodes.isa revision 8555:6fd8d0432d8d
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 = PseudoInst::initParam(xc->tcBase()); 165 }}, IsNonSpeculative); 166 0x31: m5loadsymbol({{ 167 PseudoInst::loadsymbol(xc->tcBase()); 168 }}, IsNonSpeculative); 169#endif 170 0x40: m5resetstats({{ 171 PseudoInst::resetstats(xc->tcBase(), Rdi, Rsi); 172 }}, IsNonSpeculative); 173 0x41: m5dumpstats({{ 174 PseudoInst::dumpstats(xc->tcBase(), Rdi, Rsi); 175 }}, IsNonSpeculative); 176 0x42: m5dumpresetstats({{ 177 PseudoInst::dumpresetstats(xc->tcBase(), Rdi, Rsi); 178 }}, IsNonSpeculative); 179 0x43: m5checkpoint({{ 180 PseudoInst::m5checkpoint(xc->tcBase(), Rdi, Rsi); 181 }}, IsNonSpeculative); 182#if FULL_SYSTEM 183 0x50: m5readfile({{ 184 Rax = PseudoInst::readfile( 185 xc->tcBase(), Rdi, Rsi, Rdx); 186 }}, IsNonSpeculative); 187#endif 188 0x51: m5debugbreak({{ 189 PseudoInst::debugbreak(xc->tcBase()); 190 }}, IsNonSpeculative); 191 0x52: m5switchcpu({{ 192 PseudoInst::switchcpu(xc->tcBase()); 193 }}, IsNonSpeculative); 194#if FULL_SYSTEM 195 0x53: m5addsymbol({{ 196 PseudoInst::addsymbol(xc->tcBase(), Rdi, Rsi); 197 }}, IsNonSpeculative); 198#endif 199 0x54: m5panic({{ 200 panic("M5 panic instruction called at pc = %#x.\n", 201 RIP); 202 }}, IsNonSpeculative); 203 0x55: m5reserved1({{ 204 warn("M5 reserved opcode 1 ignored.\n"); 205 }}, IsNonSpeculative); 206 0x56: m5reserved2({{ 207 warn("M5 reserved opcode 2 ignored.\n"); 208 }}, IsNonSpeculative); 209 0x57: m5reserved3({{ 210 warn("M5 reserved opcode 3 ignored.\n"); 211 }}, IsNonSpeculative); 212 0x58: m5reserved4({{ 213 warn("M5 reserved opcode 4 ignored.\n"); 214 }}, IsNonSpeculative); 215 0x59: m5reserved5({{ 216 warn("M5 reserved opcode 5 ignored.\n"); 217 }}, IsNonSpeculative); 218 0x5a: m5_work_begin({{ 219 PseudoInst::workbegin(xc->tcBase(), Rdi, Rsi); 220 }}, IsNonSpeculative); 221 0x5b: m5_work_end({{ 222 PseudoInst::workend(xc->tcBase(), Rdi, Rsi); 223 }}, IsNonSpeculative); 224 default: Inst::UD2(); 225 } 226 } 227#if FULL_SYSTEM 228 0x05: decode MODE_MODE { 229 0x0: decode MODE_SUBMODE { 230 0x0: Inst::SYSCALL_64(); 231 0x1: Inst::SYSCALL_COMPAT(); 232 } 233 0x1: Inst::SYSCALL_LEGACY(); 234 } 235#else 236 0x05: SyscallInst::syscall('xc->syscall(Rax)', 237 IsSyscall, IsNonSpeculative, IsSerializeAfter); 238#endif 239 0x06: Inst::CLTS(); 240 0x07: decode MODE_SUBMODE { 241 0x0: decode OPSIZE { 242 // Return to 64 bit mode. 243 0x8: Inst::SYSRET_TO_64(); 244 // Return to compatibility mode. 245 default: Inst::SYSRET_TO_COMPAT(); 246 } 247 default: Inst::SYSRET_NON_64(); 248 } 249 } 250 0x01: decode OPCODE_OP_BOTTOM3 { 251 0x0: invd(); 252 0x1: wbinvd(); 253 0x2: Inst::UD2(); 254 0x3: Inst::UD2(); 255 0x4: Inst::UD2(); 256 0x5: Inst::PREFETCH(Mb); 257 0x6: FailUnimpl::femms(); 258 0x7: decode IMMEDIATE { 259 0x0C: pi2fw_Pq_Qq(); 260 0x0D: pi2fd_Pq_Qq(); 261 0x1C: pf2iw_Pq_Qq(); 262 0x1D: pf2id_Pq_Qq(); 263 0x8A: pfnacc_Pq_Qq(); 264 0x8E: pfpnacc_Pq_Qq(); 265 0x90: pfcmpge_Pq_Qq(); 266 0x94: pfmin_Pq_Qq(); 267 0x96: pfrcp_Pq_Qq(); 268 0x97: pfrsqrt_Pq_Qq(); 269 0x9A: Inst::PFSUB(Pq,Qq); 270 0x9E: pfadd_Pq_Qq(); 271 0xA0: pfcmpgt_Pq_Qq(); 272 0xA4: pfmax_Pq_Qq(); 273 0xA6: pfrcpit1_Pq_Qq(); 274 0xA7: pfrsqit1_Pq_Qq(); 275 0xAA: Inst::PFSUBR(Pq,Qq); 276 0xAE: pfacc_Pq_Qq(); 277 0xB0: pfcmpeq_Pq_Qq(); 278 0xB4: Inst::PFMUL(Pq,Qq); 279 0xB6: pfrcpit2_Pq_Qq(); 280 0xB7: Inst::PMULHRW(Pq,Qq); 281 0xBB: pswapd_Pq_Qq(); 282 0xBF: pavgusb_Pq_Qq(); 283 default: Inst::UD2(); 284 } 285 } 286 format Inst{ 287 0x02: decode LEGACY_DECODEVAL { 288 // no prefix 289 0x0: decode OPCODE_OP_BOTTOM3 { 290 0x0: MOVUPS(Vo,Wo); 291 0x1: MOVUPS(Wo,Vo); 292 0x2: decode MODRM_MOD { 293 0x3: MOVHLPS(Vps,VRq); 294 default: MOVLPS(Vps,Mq); 295 } 296 0x3: MOVLPS(Mq,Vps); 297 0x4: UNPCKLPS(Vps,Wq); 298 0x5: UNPCKHPS(Vps,Wq); 299 0x6: decode MODRM_MOD { 300 0x3: MOVLHPS(Vps,VRq); 301 default: MOVHPS(Vps,Mq); 302 } 303 0x7: MOVHPS(Mq,Vq); 304 } 305 // repe (0xF3) 306 0x4: decode OPCODE_OP_BOTTOM3 { 307 0x0: MOVSS(Vd,Wd); 308 0x1: MOVSS(Wd,Vd); 309 0x2: WarnUnimpl::movsldup_Vo_Wo(); 310 0x6: WarnUnimpl::movshdup_Vo_Wo(); 311 default: UD2(); 312 } 313 // operand size (0x66) 314 0x1: decode OPCODE_OP_BOTTOM3 { 315 0x0: MOVUPD(Vo,Wo); 316 0x1: MOVUPD(Wo,Vo); 317 0x2: MOVLPD(Vq,Mq); 318 0x3: MOVLPD(Mq,Vq); 319 0x4: UNPCKLPD(Vo,Wq); 320 0x5: UNPCKHPD(Vo,Wo); 321 0x6: MOVHPD(Vq,Mq); 322 0x7: MOVHPD(Mq,Vq); 323 } 324 // repne (0xF2) 325 0x8: decode OPCODE_OP_BOTTOM3 { 326 0x0: MOVSD(Vq,Wq); 327 0x1: MOVSD(Wq,Vq); 328 0x2: MOVDDUP(Vo,Wq); 329 default: UD2(); 330 } 331 default: UD2(); 332 } 333 0x03: decode OPCODE_OP_BOTTOM3 { 334 //group16(); 335 0x0: decode MODRM_REG { 336 0x0: WarnUnimpl::prefetch_nta(); 337 0x1: PREFETCH_T0(Mb); 338 0x2: WarnUnimpl::prefetch_t1(); 339 0x3: WarnUnimpl::prefetch_t2(); 340 default: HINT_NOP(); 341 } 342 0x1: HINT_NOP(); 343 0x2: HINT_NOP(); 344 0x3: HINT_NOP(); 345 0x4: HINT_NOP(); 346 0x5: HINT_NOP(); 347 0x6: HINT_NOP(); 348 0x7: HINT_NOP(); 349 } 350 0x04: decode LEGACY_DECODEVAL { 351 // no prefix 352 0x0: decode OPCODE_OP_BOTTOM3 { 353 0x0: MOV(Rd,Cd); 354 0x1: MOV(Rd,Dd); 355 0x2: MOV(Cd,Rd); 356 0x3: MOV(Dd,Rd); 357 default: UD2(); 358 } 359 default: UD2(); 360 } 361 0x05: decode LEGACY_DECODEVAL { 362 // no prefix 363 0x0: decode OPCODE_OP_BOTTOM3 { 364 //These moves should really use size o (octword), but 365 //because they are split in two, they use q (quadword). 366 0x0: MOVAPS(Vq,Wq); 367 0x1: MOVAPS(Wq,Vq); 368 0x2: CVTPI2PS(Vq,Qq); 369 0x3: WarnUnimpl::movntps_Mo_Vo(); 370 0x4: CVTTPS2PI(Pq,Wq); 371 0x5: CVTPS2PI(Pq,Wq); 372 0x6: UCOMISS(Vd,Wd); 373 0x7: COMISS(Vd,Wd); 374 } 375 // repe (0xF3) 376 0x4: decode OPCODE_OP_BOTTOM3 { 377 0x2: CVTSI2SS(Vd,Ed); 378 0x4: CVTTSS2SI(Gd,Wd); 379 0x5: CVTSS2SI(Gd,Wd); 380 default: UD2(); 381 } 382 // operand size (0x66) 383 0x1: decode OPCODE_OP_BOTTOM3 { 384 0x0: MOVAPD(Vo,Wo); 385 0x1: MOVAPD(Wo,Vo); 386 0x2: CVTPI2PD(Vo,Qq); 387 0x3: WarnUnimpl::movntpd_Mo_Vo(); 388 0x4: CVTTPD2PI(Pq,Wo); 389 0x5: CVTPD2PI(Pq,Wo); 390 0x6: UCOMISD(Vq,Wq); 391 0x7: COMISD(Vq,Wq); 392 } 393 // repne (0xF2) 394 0x8: decode OPCODE_OP_BOTTOM3 { 395 // The size of the V operand should be q, not dp 396 0x2: CVTSI2SD(Vdp,Edp); 397 // The size of the W operand should be q, not dp 398 0x4: CVTTSD2SI(Gdp,Wdp); 399 0x5: CVTSD2SI(Gd,Wq); 400 default: UD2(); 401 } 402 default: UD2(); 403 } 404 } 405 0x06: decode OPCODE_OP_BOTTOM3 { 406 0x0: Inst::WRMSR(); 407 0x1: Inst::RDTSC(); 408 0x2: Inst::RDMSR(); 409 0x3: rdpmc(); 410#if FULL_SYSTEM 411 0x4: sysenter(); 412#else 413 0x4: SyscallInst::sysenter('xc->syscall(Rax)', 414 IsSyscall, IsNonSpeculative, IsSerializeAfter); 415#endif 416 0x5: sysexit(); 417 0x6: Inst::UD2(); 418 0x7: getsec(); 419 } 420 0x07: decode OPCODE_OP_BOTTOM3 { 421 0x0: M5InternalError::error( 422 {{"Three byte opcode shouldn't be handled by " 423 "two_byte_opcodes.isa!"}}); 424 0x2: M5InternalError::error( 425 {{"Three byte opcode shouldn't be handled by " 426 "two_byte_opcodes.isa!"}}); 427 default: UD2(); 428 } 429 format Inst { 430 0x08: decode OPCODE_OP_BOTTOM3 { 431 0x0: CMOVO(Gv,Ev); 432 0x1: CMOVNO(Gv,Ev); 433 0x2: CMOVB(Gv,Ev); 434 0x3: CMOVNB(Gv,Ev); 435 0x4: CMOVZ(Gv,Ev); 436 0x5: CMOVNZ(Gv,Ev); 437 0x6: CMOVBE(Gv,Ev); 438 0x7: CMOVNBE(Gv,Ev); 439 } 440 0x09: decode OPCODE_OP_BOTTOM3 { 441 0x0: CMOVS(Gv,Ev); 442 0x1: CMOVNS(Gv,Ev); 443 0x2: CMOVP(Gv,Ev); 444 0x3: CMOVNP(Gv,Ev); 445 0x4: CMOVL(Gv,Ev); 446 0x5: CMOVNL(Gv,Ev); 447 0x6: CMOVLE(Gv,Ev); 448 0x7: CMOVNLE(Gv,Ev); 449 } 450 0x0A: decode LEGACY_DECODEVAL { 451 // no prefix 452 0x0: decode OPCODE_OP_BOTTOM3 { 453 0x0: MOVMSKPS(Gd,VRo); 454 0x1: SQRTPS(Vo,Wo); 455 0x2: WarnUnimpl::rqsrtps_Vo_Wo(); 456 0x3: WarnUnimpl::rcpps_Vo_Wo(); 457 0x4: ANDPS(Vo,Wo); 458 0x5: ANDNPS(Vo,Wo); 459 0x6: ORPS(Vo,Wo); 460 0x7: XORPS(Vo,Wo); 461 } 462 // repe (0xF3) 463 0x4: decode OPCODE_OP_BOTTOM3 { 464 0x1: SQRTSS(Vd,Wd); 465 0x2: WarnUnimpl::rsqrtss_Vd_Wd(); 466 0x3: WarnUnimpl::rcpss_Vd_Wd(); 467 default: UD2(); 468 } 469 // operand size (0x66) 470 0x1: decode OPCODE_OP_BOTTOM3 { 471 0x0: MOVMSKPD(Gd,VRo); 472 0x1: SQRTPD(Vo,Wo); 473 0x4: ANDPD(Vo,Wo); 474 0x5: ANDNPD(Vo,Wo); 475 0x6: ORPD(Vo,Wo); 476 0x7: XORPD(Vo,Wo); 477 default: UD2(); 478 } 479 // repne (0xF2) 480 0x8: decode OPCODE_OP_BOTTOM3 { 481 0x1: SQRTSD(Vq,Wq); 482 default: UD2(); 483 } 484 default: UD2(); 485 } 486 0x0B: decode LEGACY_DECODEVAL { 487 // no prefix 488 0x0: decode OPCODE_OP_BOTTOM3 { 489 0x0: ADDPS(Vo,Wo); 490 0x1: MULPS(Vo,Wo); 491 0x2: CVTPS2PD(Vo,Wq); 492 0x3: CVTDQ2PS(Vo,Wo); 493 0x4: SUBPS(Vo,Wo); 494 0x5: MINPS(Vo,Wo); 495 0x6: DIVPS(Vo,Wo); 496 0x7: MAXPS(Vo,Wo); 497 } 498 // repe (0xF3) 499 0x4: decode OPCODE_OP_BOTTOM3 { 500 0x0: ADDSS(Vd,Wd); 501 0x1: MULSS(Vd,Wd); 502 0x2: CVTSS2SD(Vq,Wd); 503 0x3: CVTTPS2DQ(Vo,Wo); 504 0x4: SUBSS(Vd,Wd); 505 0x5: MINSS(Vd,Wd); 506 0x6: DIVSS(Vd,Wd); 507 0x7: MAXSS(Vd,Wd); 508 } 509 // operand size (0x66) 510 0x1: decode OPCODE_OP_BOTTOM3 { 511 0x0: ADDPD(Vo,Wo); 512 0x1: MULPD(Vo,Wo); 513 0x2: CVTPD2PS(Vo,Wo); 514 0x3: CVTPS2DQ(Vo,Wo); 515 0x4: SUBPD(Vo,Wo); 516 0x5: MINPD(Vo,Wo); 517 0x6: DIVPD(Vo,Wo); 518 0x7: MAXPD(Vo,Wo); 519 } 520 // repne (0xF2) 521 0x8: decode OPCODE_OP_BOTTOM3 { 522 0x0: ADDSD(Vq,Wq); 523 0x1: MULSD(Vq,Wq); 524 0x2: CVTSD2SS(Vd,Wq); 525 0x4: SUBSD(Vq,Wq); 526 0x5: MINSD(Vq,Wq); 527 0x6: DIVSD(Vq,Wq); 528 0x7: MAXSD(Vq,Wq); 529 default: UD2(); 530 } 531 default: UD2(); 532 } 533 0x0C: decode LEGACY_DECODEVAL { 534 // no prefix 535 0x0: decode OPCODE_OP_BOTTOM3 { 536 0x0: PUNPCKLBW(Pq,Qd); 537 0x1: PUNPCKLWD(Pq,Qd); 538 0x2: PUNPCKLDQ(Pq,Qd); 539 0x3: PACKSSWB(Pq,Qq); 540 0x4: PCMPGTB(Pq,Qq); 541 0x5: PCMPGTW(Pq,Qq); 542 0x6: PCMPGTD(Pq,Qq); 543 0x7: PACKUSWB(Pq,Qq); 544 } 545 // operand size (0x66) 546 0x1: decode OPCODE_OP_BOTTOM3 { 547 0x0: PUNPCKLBW(Vo,Wq); 548 0x1: PUNPCKLWD(Vo,Wq); 549 0x2: PUNPCKLDQ(Vo,Wq); 550 0x3: PACKSSWB(Vo,Wo); 551 0x4: PCMPGTB(Vo,Wo); 552 0x5: PCMPGTW(Vo,Wo); 553 0x6: PCMPGTD(Vo,Wo); 554 0x7: PACKUSWB(Vo,Wo); 555 } 556 default: UD2(); 557 } 558 0x0D: decode LEGACY_DECODEVAL { 559 // no prefix 560 0x0: decode OPCODE_OP_BOTTOM3 { 561 0x0: PUNPCKHBW(Pq,Qq); 562 0x1: PUNPCKHWD(Pq,Qq); 563 0x2: PUNPCKHDQ(Pq,Qq); 564 0x3: PACKSSDW(Pq,Qq); 565 0x6: MOVD(Pq,Edp); 566 0x7: MOVQ(Pq,Qq); 567 default: UD2(); 568 } 569 // repe (0xF3) 570 0x4: decode OPCODE_OP_BOTTOM3 { 571 0x7: MOVDQU(Vo,Wo); 572 default: UD2(); 573 } 574 // operand size (0x66) 575 0x1: decode OPCODE_OP_BOTTOM3 { 576 0x0: PUNPCKHBW(Vo,Wo); 577 0x1: PUNPCKHWD(Vo,Wo); 578 0x2: PUNPCKHDQ(Vo,Wo); 579 0x3: PACKSSDW(Vo,Wo); 580 0x4: PUNPCKLQDQ(Vo,Wq); 581 0x5: PUNPCKHQDQ(Vo,Wq); 582 0x6: MOVD(Vo,Edp); 583 0x7: MOVDQA(Vo,Wo); 584 } 585 default: UD2(); 586 } 587 0x0E: decode LEGACY_DECODEVAL { 588 // no prefix 589 0x0: decode OPCODE_OP_BOTTOM3 { 590 0x0: PSHUFW(Pq,Qq,Ib); 591 //0x1: group12_pshimw(); 592 0x1: decode MODRM_REG { 593 0x2: PSRLW(PRq,Ib); 594 0x4: PSRAW(PRq,Ib); 595 0x6: PSLLW(PRq,Ib); 596 default: UD2(); 597 } 598 //0x2: group13_pshimd(); 599 0x2: decode MODRM_REG { 600 0x2: PSRLD(PRq,Ib); 601 0x4: PSRAD(PRq,Ib); 602 0x6: PSLLD(PRq,Ib); 603 default: UD2(); 604 } 605 //0x3: group14_pshimq(); 606 0x3: decode MODRM_REG { 607 0x2: PSRLQ(PRq,Ib); 608 0x6: PSLLQ(PRq,Ib); 609 default: Inst::UD2(); 610 } 611 0x4: Inst::PCMPEQB(Pq,Qq); 612 0x5: Inst::PCMPEQW(Pq,Qq); 613 0x6: Inst::PCMPEQD(Pq,Qq); 614 0x7: WarnUnimpl::emms(); 615 } 616 // repe (0xF3) 617 0x4: decode OPCODE_OP_BOTTOM3 { 618 0x0: PSHUFHW(Vo,Wo,Ib); 619 default: UD2(); 620 } 621 // operand size (0x66) 622 0x1: decode OPCODE_OP_BOTTOM3 { 623 0x0: PSHUFD(Vo,Wo,Ib); 624 //0x1: group12_pshimw(); 625 0x1: decode MODRM_REG { 626 0x2: PSRLW(VRo,Ib); 627 0x4: PSRAW(VRo,Ib); 628 0x6: PSLLW(VRo,Ib); 629 } 630 //0x2: group13_pshimd(); 631 0x2: decode MODRM_REG { 632 0x2: PSRLD(VRo,Ib); 633 0x4: PSRAD(VRo,Ib); 634 0x6: PSLLD(VRo,Ib); 635 default: UD2(); 636 } 637 //0x3: group14_pshimq(); 638 0x3: decode MODRM_REG { 639 0x2: PSRLQ(VRo,Ib); 640 0x3: PSRLDQ(VRo,Ib); 641 0x6: PSLLQ(VRo,Ib); 642 0x7: PSLLDQ(VRo,Ib); 643 default: UD2(); 644 } 645 0x4: PCMPEQB(Vo,Wo); 646 0x5: PCMPEQW(Vo,Wo); 647 0x6: PCMPEQD(Vo,Wo); 648 default: UD2(); 649 } 650 // repne (0xF2) 651 0x8: decode OPCODE_OP_BOTTOM3 { 652 0x0: PSHUFLW(Vo,Wo,Ib); 653 default: UD2(); 654 } 655 default: UD2(); 656 } 657 0x0F: decode LEGACY_DECODEVAL { 658 // no prefix 659 0x0: decode OPCODE_OP_BOTTOM3 { 660 0x0: WarnUnimpl::vmread_Edp_Gdp(); 661 0x1: WarnUnimpl::vmwrite_Gdp_Edp(); 662 0x6: MOVD(Edp,Pdp); 663 0x7: MOVQ(Qq,Pq); 664 default: UD2(); 665 } 666 // repe (0xF3) 667 0x4: decode OPCODE_OP_BOTTOM3 { 668 0x6: MOVQ(Vq,Wq); 669 0x7: MOVDQU(Wo,Vo); 670 default: UD2(); 671 } 672 // operand size (0x66) 673 0x1: decode OPCODE_OP_BOTTOM3 { 674 0x4: HADDPD(Vo,Wo); 675 0x5: WarnUnimpl::hsubpd_Vo_Wo(); 676 0x6: MOVD(Edp,Vd); 677 0x7: MOVDQA(Wo,Vo); 678 default: UD2(); 679 } 680 // repne (0xF2) 681 0x8: decode OPCODE_OP_BOTTOM3 { 682 0x4: WarnUnimpl::haddps_Vo_Wo(); 683 0x5: WarnUnimpl::hsubps_Vo_Wo(); 684 default: UD2(); 685 } 686 default: UD2(); 687 } 688 0x10: decode OPCODE_OP_BOTTOM3 { 689 0x0: JO(Jz); 690 0x1: JNO(Jz); 691 0x2: JB(Jz); 692 0x3: JNB(Jz); 693 0x4: JZ(Jz); 694 0x5: JNZ(Jz); 695 0x6: JBE(Jz); 696 0x7: JNBE(Jz); 697 } 698 0x11: decode OPCODE_OP_BOTTOM3 { 699 0x0: JS(Jz); 700 0x1: JNS(Jz); 701 0x2: JP(Jz); 702 0x3: JNP(Jz); 703 0x4: JL(Jz); 704 0x5: JNL(Jz); 705 0x6: JLE(Jz); 706 0x7: JNLE(Jz); 707 } 708 0x12: decode OPCODE_OP_BOTTOM3 { 709 0x0: SETO(Eb); 710 0x1: SETNO(Eb); 711 0x2: SETB(Eb); 712 0x3: SETNB(Eb); 713 0x4: SETZ(Eb); 714 0x5: SETNZ(Eb); 715 0x6: SETBE(Eb); 716 0x7: SETNBE(Eb); 717 } 718 0x13: decode OPCODE_OP_BOTTOM3 { 719 0x0: SETS(Eb); 720 0x1: SETNS(Eb); 721 0x2: SETP(Eb); 722 0x3: SETNP(Eb); 723 0x4: SETL(Eb); 724 0x5: SETNL(Eb); 725 0x6: SETLE(Eb); 726 0x7: SETNLE(Eb); 727 } 728 } 729 0x14: decode OPCODE_OP_BOTTOM3 { 730 0x0: push_fs(); 731 0x1: pop_fs(); 732 0x2: CPUIDInst::CPUID({{ 733 CpuidResult result; 734 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0), 735 bits(Rcx, 31, 0), result); 736 Rax = result.rax; 737 Rbx = result.rbx; 738 Rcx = result.rcx; 739 Rdx = result.rdx; 740 }}); 741 0x3: Inst::BT(Ev,Gv); 742 0x4: Inst::SHLD(Ev,Gv,Ib); 743 0x5: Inst::SHLD(Ev,Gv); 744 default: Inst::UD2(); 745 } 746 0x15: decode OPCODE_OP_BOTTOM3 { 747 0x0: push_gs(); 748 0x1: pop_gs(); 749 0x2: rsm_smm(); 750 0x3: Inst::BTS(Ev,Gv); 751 0x4: Inst::SHRD(Ev,Gv,Ib); 752 0x5: Inst::SHRD(Ev,Gv); 753 //0x6: group15(); 754 0x6: decode MODRM_MOD { 755 0x3: decode MODRM_REG { 756 0x5: BasicOperate::LFENCE( 757 {{/*Nothing*/}}, IsReadBarrier); 758 0x6: BasicOperate::MFENCE( 759 {{/*Nothing*/}}, IsMemBarrier); 760 0x7: BasicOperate::SFENCE( 761 {{/*Nothing*/}}, IsWriteBarrier); 762 default: Inst::UD2(); 763 } 764 default: decode MODRM_REG { 765 0x0: fxsave(); 766 0x1: fxrstor(); 767 0x2: Inst::LDMXCSR(Md); 768 0x3: Inst::STMXCSR(Md); 769 0x4: xsave(); 770 0x5: xrstor(); 771 0x6: Inst::UD2(); 772 0x7: clflush(); 773 } 774 } 775 0x7: Inst::IMUL(Gv,Ev); 776 } 777 format Inst { 778 0x16: decode OPCODE_OP_BOTTOM3 { 779 0x0: CMPXCHG(Eb,Gb); 780 0x1: CMPXCHG(Ev,Gv); 781 0x2: WarnUnimpl::lss_Gz_Mp(); 782 0x3: BTR(Ev,Gv); 783 0x4: WarnUnimpl::lfs_Gz_Mp(); 784 0x5: WarnUnimpl::lgs_Gz_Mp(); 785 //The size of the second operand in these instructions 786 //should really be "b" or "w", but it's set to v in order 787 //to have a consistent register size. This shouldn't 788 //affect behavior. 789 0x6: MOVZX_B(Gv,Ev); 790 0x7: MOVZX_W(Gv,Ev); 791 } 792 0x17: decode OPCODE_OP_BOTTOM3 { 793 0x0: decode LEGACY_REP { 794 0x0: WarnUnimpl::jmpe_Jz(); 795 0x1: WarnUnimpl::popcnt_Gv_Ev(); 796 } 797 //0x1: group10_UD2(); 798 0x1: UD2(); 799 //0x2: group8_Ev_Ib(); 800 0x2: decode MODRM_REG { 801 0x4: BT(Ev,Ib); 802 0x5: BTS(Ev,Ib); 803 0x6: BTR(Ev,Ib); 804 0x7: BTC(Ev,Ib); 805 default: UD2(); 806 } 807 0x3: BTC(Ev,Gv); 808 0x4: BSF(Gv,Ev); 809 0x5: BSR(Gv,Ev); 810 //The size of the second operand in these instructions 811 //should really be "b" or "w", but it's set to v in order 812 //to have a consistent register size. This shouldn't 813 //affect behavior. 814 0x6: MOVSX_B(Gv,Ev); 815 0x7: MOVSX_W(Gv,Ev); 816 } 817 0x18: decode OPCODE_OP_BOTTOM3 { 818 0x0: XADD(Eb,Gb); 819 0x1: XADD(Ev,Gv); 820 //0x7: group9(); 821 0x7: decode MODRM_REG { 822 //Also CMPXCHG16B 823 0x1: CMPXCHG8B(Mdp); 824 0x6: decode LEGACY_OP { 825 0x1: WarnUnimpl::vmclear_Mq(); 826 default: decode LEGACY_REP { 827 0x1: WarnUnimpl::vmxon_Mq(); 828 0x0: WarnUnimpl::vmptrld_Mq(); 829 } 830 } 831 0x7: WarnUnimpl::vmptrst_Mq(); 832 default: UD2(); 833 } 834 default: decode LEGACY_DECODEVAL { 835 // no prefix 836 0x0: decode OPCODE_OP_BOTTOM3 { 837 0x2: CMPPS(Vo,Wo,Ib); 838 0x3: MOVNTI(Mdp,Gdp); 839 0x4: PINSRW(Pq,Ew,Ib); 840 0x5: PEXTRW(Gd,PRq,Ib); 841 0x6: SHUFPS(Vps,Wps,Ib); 842 } 843 // repe (0xF3) 844 0x4: decode OPCODE_OP_BOTTOM3 { 845 0x2: CMPSS(Vd,Wd,Ib); 846 default: UD2(); 847 } 848 // operand size (0x66) 849 0x1: decode OPCODE_OP_BOTTOM3 { 850 0x2: CMPPD(Vo,Wo,Ib); 851 0x4: PINSRW(Vdw,Ew,Ib); 852 0x5: PEXTRW(Gd,VRdq,Ib); 853 0x6: SHUFPD(Vpd,Wpd,Ib); 854 default: UD2(); 855 } 856 // repne (0xF2) 857 0x8: decode OPCODE_OP_BOTTOM3 { 858 0x2: CMPSD(Vq,Wq,Ib); 859 default: UD2(); 860 } 861 default: UD2(); 862 } 863 } 864 0x19: decode OPSIZE { 865 4: BSWAP_D(Bd); 866 8: BSWAP_Q(Bq); 867 default: UD2(); 868 } 869 0x1A: decode LEGACY_DECODEVAL { 870 // no prefix 871 0x0: decode OPCODE_OP_BOTTOM3 { 872 0x1: PSRLW(Pq,Qq); 873 0x2: PSRLD(Pq,Qq); 874 0x3: PSRLQ(Pq,Qq); 875 0x4: PADDQ(Pq,Qq); 876 0x5: PMULLW(Pq,Qq); 877 0x7: PMOVMSKB(Gd,PRq); 878 default: UD2(); 879 } 880 // repe (0xF3) 881 0x4: decode OPCODE_OP_BOTTOM3 { 882 0x6: MOVQ2DQ(Vo,PRq); 883 default: UD2(); 884 } 885 // operand size (0x66) 886 0x1: decode OPCODE_OP_BOTTOM3 { 887 0x0: WarnUnimpl::addsubpd_Vo_Wo(); 888 0x1: PSRLW(Vo,Wo); 889 0x2: PSRLD(Vo,Wo); 890 0x3: PSRLQ(Vo,Wo); 891 0x4: PADDQ(Vo,Wo); 892 0x5: PMULLW(Vo,Wo); 893 0x6: MOVQ(Wq,Vq); 894 0x7: PMOVMSKB(Gd,VRo); 895 } 896 // repne (0xF2) 897 0x8: decode OPCODE_OP_BOTTOM3 { 898 0x0: WarnUnimpl::addsubps_Vo_Wo(); 899 0x6: MOVDQ2Q(Pq,VRq); 900 default: UD2(); 901 } 902 default: UD2(); 903 } 904 0x1B: decode LEGACY_DECODEVAL { 905 // no prefix 906 0x0: decode OPCODE_OP_BOTTOM3 { 907 0x0: PSUBUSB(Pq,Qq); 908 0x1: PSUBUSW(Pq,Qq); 909 0x2: PMINUB(Pq,Qq); 910 0x3: PAND(Pq,Qq); 911 0x4: PADDUSB(Pq,Qq); 912 0x5: PADDUSW(Pq,Qq); 913 0x6: PMAXUB(Pq,Qq); 914 0x7: PANDN(Pq,Qq); 915 } 916 // operand size (0x66) 917 0x1: decode OPCODE_OP_BOTTOM3 { 918 0x0: PSUBUSB(Vo,Wo); 919 0x1: PSUBUSW(Vo,Wo); 920 0x2: PMINUB(Vo,Wo); 921 0x3: PAND(Vo,Wo); 922 0x4: PADDUSB(Vo,Wo); 923 0x5: PADDUSW(Vo,Wo); 924 0x6: PMAXUB(Vo,Wo); 925 0x7: PANDN(Vo,Wo); 926 } 927 default: UD2(); 928 } 929 0x1C: decode LEGACY_DECODEVAL { 930 // no prefix 931 0x0: decode OPCODE_OP_BOTTOM3 { 932 0x0: PAVGB(Pq,Qq); 933 0x1: PSRAW(Pq,Qq); 934 0x2: PSRAD(Pq,Qq); 935 0x3: PAVGW(Pq,Qq); 936 0x4: PMULHUW(Pq,Qq); 937 0x5: PMULHW(Pq,Qq); 938 0x7: WarnUnimpl::movntq_Mq_Pq(); 939 default: UD2(); 940 } 941 // repe (0xF3) 942 0x4: decode OPCODE_OP_BOTTOM3 { 943 0x6: CVTDQ2PD(Vo,Wq); 944 default: UD2(); 945 } 946 // operand size (0x66) 947 0x1: decode OPCODE_OP_BOTTOM3 { 948 0x0: PAVGB(Vo,Wo); 949 0x1: PSRAW(Vo,Wo); 950 0x2: PSRAD(Vo,Wo); 951 0x3: PAVGW(Vo,Wo); 952 0x4: PMULHUW(Vo,Wo); 953 0x5: PMULHW(Vo,Wo); 954 0x6: CVTTPD2DQ(Vo,Wo); 955 0x7: WarnUnimpl::movntdq_Mo_Vo(); 956 } 957 // repne (0xF2) 958 0x8: decode OPCODE_OP_BOTTOM3 { 959 0x6: CVTPD2DQ(Vo,Wo); 960 default: UD2(); 961 } 962 default: UD2(); 963 } 964 0x1D: decode LEGACY_DECODEVAL { 965 // no prefix 966 0x0: decode OPCODE_OP_BOTTOM3 { 967 0x0: PSUBSB(Pq,Qq); 968 0x1: PSUBSW(Pq,Qq); 969 0x2: PMINSW(Pq,Qq); 970 0x3: POR(Pq,Qq); 971 0x4: PADDSB(Pq,Qq); 972 0x5: PADDSW(Pq,Qq); 973 0x6: PMAXSW(Pq,Qq); 974 0x7: PXOR(Pq,Qq); 975 } 976 // operand size (0x66) 977 0x1: decode OPCODE_OP_BOTTOM3 { 978 0x0: PSUBSB(Vo,Wo); 979 0x1: PSUBSW(Vo,Wo); 980 0x2: PMINSW(Vo,Wo); 981 0x3: POR(Vo,Wo); 982 0x4: PADDSB(Vo,Wo); 983 0x5: PADDSW(Vo,Wo); 984 0x6: PMAXSW(Vo,Wo); 985 0x7: PXOR(Vo,Wo); 986 } 987 default: UD2(); 988 } 989 0x1E: decode LEGACY_DECODEVAL { 990 // no prefix 991 0x0: decode OPCODE_OP_BOTTOM3 { 992 0x1: PSLLW(Pq,Qq); 993 0x2: PSLLD(Pq,Qq); 994 0x3: PSLLQ(Pq,Qq); 995 0x4: PMULUDQ(Pq,Qq); 996 0x5: PMADDWD(Pq,Qq); 997 0x6: PSADBW(Pq,Qq); 998 0x7: MASKMOVQ(Pq,PRq); 999 default: UD2(); 1000 } 1001 // operand size (0x66) 1002 0x1: decode OPCODE_OP_BOTTOM3 { 1003 0x1: PSLLW(Vo,Wo); 1004 0x2: PSLLD(Vo,Wo); 1005 0x3: PSLLQ(Vo,Wo); 1006 0x4: PMULUDQ(Vo,Wo); 1007 0x5: PMADDWD(Vo,Wo); 1008 0x6: PSADBW(Vo,Wo); 1009 0x7: MASKMOVDQU(Vo,VRo); 1010 default: UD2(); 1011 } 1012 // repne (0xF2) 1013 0x8: decode OPCODE_OP_BOTTOM3 { 1014 0x0: WarnUnimpl::lddqu_Vo_Mo(); 1015 default: UD2(); 1016 } 1017 default: UD2(); 1018 } 1019 0x1F: decode LEGACY_DECODEVAL { 1020 // no prefix 1021 0x0: decode OPCODE_OP_BOTTOM3 { 1022 0x0: PSUBB(Pq,Qq); 1023 0x1: PSUBW(Pq,Qq); 1024 0x2: PSUBD(Pq,Qq); 1025 0x3: PSUBQ(Pq,Qq); 1026 0x4: PADDB(Pq,Qq); 1027 0x5: PADDW(Pq,Qq); 1028 0x6: PADDD(Pq,Qq); 1029 0x7: UD2(); 1030 } 1031 // operand size (0x66) 1032 0x1: decode OPCODE_OP_BOTTOM3 { 1033 0x0: PSUBB(Vo,Wo); 1034 0x1: PSUBW(Vo,Wo); 1035 0x2: PSUBD(Vo,Wo); 1036 0x3: PSUBQ(Vo,Wo); 1037 0x4: PADDB(Vo,Wo); 1038 0x5: PADDW(Vo,Wo); 1039 0x6: PADDD(Vo,Wo); 1040 0x7: UD2(); 1041 } 1042 default: UD2(); 1043 } 1044 } 1045 default: FailUnimpl::twoByteOps(); 1046 } 1047 } 1048 default: M5InternalError::error( 1049 {{"Unexpected first opcode byte in two byte opcode!"}}); 1050} 1051