two_byte_opcodes.isa revision 7087:fb8d5786ff30
1// Copyright (c) 2007-2008 The Hewlett-Packard Development Company 2// All rights reserved. 3// 4// The license below extends only to copyright in the software and shall 5// not be construed as granting a license to any other intellectual 6// property including but not limited to intellectual property relating 7// to a hardware implementation of the functionality of the software 8// licensed hereunder. You may use the software subject to the license 9// terms below provided that you ensure that this notice is replicated 10// unmodified and in its entirety in all distributions of the software, 11// modified or unmodified, in source code or in binary form. 12// 13// Copyright (c) 2008 The Regents of The University of Michigan 14// All rights reserved. 15// 16// Redistribution and use in source and binary forms, with or without 17// modification, are permitted provided that the following conditions are 18// met: redistributions of source code must retain the above copyright 19// notice, this list of conditions and the following disclaimer; 20// redistributions in binary form must reproduce the above copyright 21// notice, this list of conditions and the following disclaimer in the 22// documentation and/or other materials provided with the distribution; 23// neither the name of the copyright holders nor the names of its 24// contributors may be used to endorse or promote products derived from 25// this software without specific prior written permission. 26// 27// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 30// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 32// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 33// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 37// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38// 39// Authors: Gabe Black 40 41//////////////////////////////////////////////////////////////////// 42// 43// Decode the two byte opcodes 44// 450x2: decode OPCODE_PREFIXA { 46 0x0F: decode OPCODE_OP_TOP5 { 47 format WarnUnimpl { 48 0x00: decode OPCODE_OP_BOTTOM3 { 49 //0x00: group6(); 50 0x00: decode MODRM_REG { 51 0x0: sldt_Mw_or_Rv(); 52 0x1: str_Mw_or_Rv(); 53 0x2: Inst::LLDT(Ew); 54 0x3: Inst::LTR(Ew); 55 0x4: verr_Mw_or_Rv(); 56 0x5: verw_Mw_or_Rv(); 57 //0x6: jmpe_Ev(); // IA-64 58 default: Inst::UD2(); 59 } 60 //0x01: group7(); // Ugly, ugly, ugly... 61 0x01: decode MODRM_REG { 62 0x0: decode MODRM_MOD { 63 0x3: decode MODRM_RM { 64 0x1: vmcall(); 65 0x2: vmlaunch(); 66 0x3: vmresume(); 67 0x4: vmxoff(); 68 default: Inst::UD2(); 69 } 70 default: sgdt_Ms(); 71 } 72 0x1: decode MODRM_MOD { 73 0x3: decode MODRM_RM { 74 0x0: monitor(); 75 0x1: mwait(); 76 default: Inst::UD2(); 77 } 78 default: sidt_Ms(); 79 } 80 0x2: decode MODRM_MOD { 81 0x3: decode MODRM_RM { 82 0x0: xgetbv(); 83 0x1: xsetbv(); 84 } 85 default: decode MODE_SUBMODE { 86 0x0: Inst::LGDT(M); 87 default: decode OPSIZE { 88 // 16 bit operand sizes are special, but only 89 // in legacy and compatability modes. 90 0x2: Inst::LGDT_16(M); 91 default: Inst::LGDT(M); 92 } 93 } 94 } 95 0x3: decode MODRM_MOD { 96 0x3: decode MODRM_RM { 97 0x0: vmrun(); 98 0x1: vmmcall(); 99 0x2: vmload(); 100 0x3: vmsave(); 101 0x4: stgi(); 102 0x5: clgi(); 103 0x6: skinit(); 104 0x7: invlpga(); 105 } 106 default: decode MODE_SUBMODE { 107 0x0: Inst::LIDT(M); 108 default: decode OPSIZE { 109 // 16 bit operand sizes are special, but only 110 // in legacy and compatability modes. 111 0x2: Inst::LIDT_16(M); 112 default: Inst::LIDT(M); 113 } 114 } 115 } 116 0x4: decode MODRM_MOD { 117 0x3: Inst::SMSW(Rv); 118 default: Inst::SMSW(Mw); 119 } 120 0x6: Inst::LMSW(Ew); 121 0x7: decode MODRM_MOD { 122 0x3: decode MODRM_RM { 123 0x0: Inst::SWAPGS(); 124 0x1: rdtscp(); 125 default: Inst::UD2(); 126 } 127 default: Inst::INVLPG(M); 128 } 129 } 130 0x02: lar_Gv_Ew(); 131 0x03: lsl_Gv_Ew(); 132 // sandpile.org doesn't seem to know what this is...? We'll 133 // use it for pseudo instructions. We've got 16 bits of space 134 // to play with so there can be quite a few pseudo 135 // instructions. 136 //0x04: loadall_or_reset_or_hang(); 137 0x4: decode IMMEDIATE { 138 format BasicOperate { 139#if FULL_SYSTEM 140 0x00: m5arm({{ 141 PseudoInst::arm(xc->tcBase()); 142 }}, IsNonSpeculative); 143 0x01: m5quiesce({{ 144 PseudoInst::quiesce(xc->tcBase()); 145 }}, IsNonSpeculative); 146 0x02: m5quiesceNs({{ 147 PseudoInst::quiesceNs(xc->tcBase(), Rdi); 148 }}, IsNonSpeculative); 149 0x03: m5quiesceCycle({{ 150 PseudoInst::quiesceCycles(xc->tcBase(), Rdi); 151 }}, IsNonSpeculative); 152 0x04: m5quiesceTime({{ 153 Rax = PseudoInst::quiesceTime(xc->tcBase()); 154 }}, IsNonSpeculative); 155#endif 156 0x07: m5rpns({{ 157 Rax = PseudoInst::rpns(xc->tcBase()); 158 }}, IsNonSpeculative); 159 0x21: m5exit({{ 160 PseudoInst::m5exit(xc->tcBase(), Rdi); 161 }}, IsNonSpeculative); 162#if FULL_SYSTEM 163 0x30: m5initparam({{ 164 Rax = xc->tcBase()->getCpuPtr()-> 165 system->init_param; 166 }}, IsNonSpeculative); 167 0x31: m5loadsymbol({{ 168 PseudoInst::loadsymbol(xc->tcBase()); 169 }}, IsNonSpeculative); 170#endif 171 0x40: m5resetstats({{ 172 PseudoInst::resetstats(xc->tcBase(), Rdi, Rsi); 173 }}, IsNonSpeculative); 174 0x41: m5dumpstats({{ 175 PseudoInst::dumpstats(xc->tcBase(), Rdi, Rsi); 176 }}, IsNonSpeculative); 177 0x42: m5dumpresetstats({{ 178 PseudoInst::dumpresetstats(xc->tcBase(), Rdi, Rsi); 179 }}, IsNonSpeculative); 180 0x43: m5checkpoint({{ 181 PseudoInst::m5checkpoint(xc->tcBase(), Rdi, Rsi); 182 }}, IsNonSpeculative); 183#if FULL_SYSTEM 184 0x50: m5readfile({{ 185 Rax = PseudoInst::readfile( 186 xc->tcBase(), Rdi, Rsi, Rdx); 187 }}, IsNonSpeculative); 188#endif 189 0x51: m5debugbreak({{ 190 PseudoInst::debugbreak(xc->tcBase()); 191 }}, IsNonSpeculative); 192 0x52: m5switchcpu({{ 193 PseudoInst::switchcpu(xc->tcBase()); 194 }}, IsNonSpeculative); 195#if FULL_SYSTEM 196 0x53: m5addsymbol({{ 197 PseudoInst::addsymbol(xc->tcBase(), Rdi, Rsi); 198 }}, IsNonSpeculative); 199#endif 200 0x54: m5panic({{ 201 panic("M5 panic instruction called at pc=%#x.\n", 202 xc->readPC()); 203 }}, IsNonSpeculative); 204 0x55: m5reserved1({{ 205 warn("M5 reserved opcode 1 ignored.\n"); 206 }}, IsNonSpeculative); 207 0x56: m5reserved2({{ 208 warn("M5 reserved opcode 2 ignored.\n"); 209 }}, IsNonSpeculative); 210 0x57: m5reserved3({{ 211 warn("M5 reserved opcode 3 ignored.\n"); 212 }}, IsNonSpeculative); 213 0x58: m5reserved4({{ 214 warn("M5 reserved opcode 4 ignored.\n"); 215 }}, IsNonSpeculative); 216 0x59: m5reserved5({{ 217 warn("M5 reserved opcode 5 ignored.\n"); 218 }}, IsNonSpeculative); 219 default: Inst::UD2(); 220 } 221 } 222#if FULL_SYSTEM 223 0x05: decode MODE_MODE { 224 0x0: decode MODE_SUBMODE { 225 0x0: Inst::SYSCALL_64(); 226 0x1: Inst::SYSCALL_COMPAT(); 227 } 228 0x1: Inst::SYSCALL_LEGACY(); 229 } 230#else 231 0x05: SyscallInst::syscall('xc->syscall(Rax)', IsSyscall); 232#endif 233 0x06: Inst::CLTS(); 234 0x07: decode MODE_SUBMODE { 235 0x0: decode OPSIZE { 236 // Return to 64 bit mode. 237 0x8: Inst::SYSRET_TO_64(); 238 // Return to compatibility mode. 239 default: Inst::SYSRET_TO_COMPAT(); 240 } 241 default: Inst::SYSRET_NON_64(); 242 } 243 } 244 0x01: decode OPCODE_OP_BOTTOM3 { 245 0x0: invd(); 246 0x1: wbinvd(); 247 0x2: Inst::UD2(); 248 0x3: Inst::UD2(); 249 0x4: Inst::UD2(); 250 0x5: Inst::PREFETCH(Mb); 251 0x6: FailUnimpl::femms(); 252 0x7: decode IMMEDIATE { 253 0x0C: pi2fw_Pq_Qq(); 254 0x0D: pi2fd_Pq_Qq(); 255 0x1C: pf2iw_Pq_Qq(); 256 0x1D: pf2id_Pq_Qq(); 257 0x8A: pfnacc_Pq_Qq(); 258 0x8E: pfpnacc_Pq_Qq(); 259 0x90: pfcmpge_Pq_Qq(); 260 0x94: pfmin_Pq_Qq(); 261 0x96: pfrcp_Pq_Qq(); 262 0x97: pfrsqrt_Pq_Qq(); 263 0x9A: Inst::PFSUB(Pq,Qq); 264 0x9E: pfadd_Pq_Qq(); 265 0xA0: pfcmpgt_Pq_Qq(); 266 0xA4: pfmax_Pq_Qq(); 267 0xA6: pfrcpit1_Pq_Qq(); 268 0xA7: pfrsqit1_Pq_Qq(); 269 0xAA: Inst::PFSUBR(Pq,Qq); 270 0xAE: pfacc_Pq_Qq(); 271 0xB0: pfcmpeq_Pq_Qq(); 272 0xB4: Inst::PFMUL(Pq,Qq); 273 0xB6: pfrcpit2_Pq_Qq(); 274 0xB7: Inst::PMULHRW(Pq,Qq); 275 0xBB: pswapd_Pq_Qq(); 276 0xBF: pavgusb_Pq_Qq(); 277 default: Inst::UD2(); 278 } 279 } 280 format Inst{ 281 0x02: decode LEGACY_DECODEVAL { 282 // no prefix 283 0x0: decode OPCODE_OP_BOTTOM3 { 284 0x0: MOVUPS(Vo,Wo); 285 0x1: MOVUPS(Wo,Vo); 286 0x2: decode MODRM_MOD { 287 0x3: MOVHLPS(Vps,VRq); 288 default: MOVLPS(Vps,Mq); 289 } 290 0x3: MOVLPS(Mq,Vps); 291 0x4: UNPCKLPS(Vps,Wq); 292 0x5: UNPCKHPS(Vps,Wq); 293 0x6: decode MODRM_MOD { 294 0x3: MOVLHPS(Vps,VRq); 295 default: MOVHPS(Vps,Mq); 296 } 297 0x7: MOVHPS(Mq,Vq); 298 } 299 // repe (0xF3) 300 0x4: decode OPCODE_OP_BOTTOM3 { 301 0x0: MOVSS(Vd,Wd); 302 0x1: MOVSS(Wd,Vd); 303 0x2: WarnUnimpl::movsldup_Vo_Wo(); 304 0x6: WarnUnimpl::movshdup_Vo_Wo(); 305 default: UD2(); 306 } 307 // operand size (0x66) 308 0x1: decode OPCODE_OP_BOTTOM3 { 309 0x0: MOVUPD(Vo,Wo); 310 0x1: MOVUPD(Wo,Vo); 311 0x2: MOVLPD(Vq,Mq); 312 0x3: MOVLPD(Mq,Vq); 313 0x4: UNPCKLPD(Vo,Wq); 314 0x5: UNPCKHPD(Vo,Wo); 315 0x6: MOVHPD(Vq,Mq); 316 0x7: MOVHPD(Mq,Vq); 317 } 318 // repne (0xF2) 319 0x8: decode OPCODE_OP_BOTTOM3 { 320 0x0: MOVSD(Vq,Wq); 321 0x1: MOVSD(Wq,Vq); 322 0x2: MOVDDUP(Vo,Wq); 323 default: UD2(); 324 } 325 default: UD2(); 326 } 327 0x03: decode OPCODE_OP_BOTTOM3 { 328 //group16(); 329 0x0: decode MODRM_REG { 330 0x0: WarnUnimpl::prefetch_nta(); 331 0x1: PREFETCH_T0(Mb); 332 0x2: WarnUnimpl::prefetch_t1(); 333 0x3: WarnUnimpl::prefetch_t2(); 334 default: HINT_NOP(); 335 } 336 0x1: HINT_NOP(); 337 0x2: HINT_NOP(); 338 0x3: HINT_NOP(); 339 0x4: HINT_NOP(); 340 0x5: HINT_NOP(); 341 0x6: HINT_NOP(); 342 0x7: HINT_NOP(); 343 } 344 0x04: decode LEGACY_DECODEVAL { 345 // no prefix 346 0x0: decode OPCODE_OP_BOTTOM3 { 347 0x0: MOV(Rd,Cd); 348 0x1: MOV(Rd,Dd); 349 0x2: MOV(Cd,Rd); 350 0x3: MOV(Dd,Rd); 351 default: UD2(); 352 } 353 default: UD2(); 354 } 355 0x05: decode LEGACY_DECODEVAL { 356 // no prefix 357 0x0: decode OPCODE_OP_BOTTOM3 { 358 //These moves should really use size o (octword), but 359 //because they are split in two, they use q (quadword). 360 0x0: MOVAPS(Vq,Wq); 361 0x1: MOVAPS(Wq,Vq); 362 0x2: CVTPI2PS(Vq,Qq); 363 0x3: WarnUnimpl::movntps_Mo_Vo(); 364 0x4: CVTTPS2PI(Pq,Wq); 365 0x5: CVTPS2PI(Pq,Wq); 366 0x6: UCOMISS(Vd,Wd); 367 0x7: COMISS(Vd,Wd); 368 } 369 // repe (0xF3) 370 0x4: decode OPCODE_OP_BOTTOM3 { 371 0x2: CVTSI2SS(Vd,Ed); 372 0x4: CVTTSS2SI(Gd,Wd); 373 0x5: CVTSS2SI(Gd,Wd); 374 default: UD2(); 375 } 376 // operand size (0x66) 377 0x1: decode OPCODE_OP_BOTTOM3 { 378 0x0: MOVAPD(Vo,Wo); 379 0x1: MOVAPD(Wo,Vo); 380 0x2: CVTPI2PD(Vo,Qq); 381 0x3: WarnUnimpl::movntpd_Mo_Vo(); 382 0x4: CVTTPD2PI(Pq,Wo); 383 0x5: CVTPD2PI(Pq,Wo); 384 0x6: UCOMISD(Vq,Wq); 385 0x7: COMISD(Vq,Wq); 386 } 387 // repne (0xF2) 388 0x8: decode OPCODE_OP_BOTTOM3 { 389 // The size of the V operand should be q, not dp 390 0x2: CVTSI2SD(Vdp,Edp); 391 // The size of the W operand should be q, not dp 392 0x4: CVTTSD2SI(Gdp,Wdp); 393 0x5: CVTSD2SI(Gd,Wq); 394 default: UD2(); 395 } 396 default: UD2(); 397 } 398 } 399 0x06: decode OPCODE_OP_BOTTOM3 { 400 0x0: Inst::WRMSR(); 401 0x1: Inst::RDTSC(); 402 0x2: Inst::RDMSR(); 403 0x3: rdpmc(); 404#if FULL_SYSTEM 405 0x4: sysenter(); 406#else 407 0x4: SyscallInst::sysenter('xc->syscall(Rax)', IsSyscall); 408#endif 409 0x5: sysexit(); 410 0x6: Inst::UD2(); 411 0x7: getsec(); 412 } 413 0x07: decode OPCODE_OP_BOTTOM3 { 414 0x0: M5InternalError::error( 415 {{"Three byte opcode shouldn't be handled by " 416 "two_byte_opcodes.isa!"}}); 417 0x2: M5InternalError::error( 418 {{"Three byte opcode shouldn't be handled by " 419 "two_byte_opcodes.isa!"}}); 420 default: UD2(); 421 } 422 format Inst { 423 0x08: decode OPCODE_OP_BOTTOM3 { 424 0x0: CMOVO(Gv,Ev); 425 0x1: CMOVNO(Gv,Ev); 426 0x2: CMOVB(Gv,Ev); 427 0x3: CMOVNB(Gv,Ev); 428 0x4: CMOVZ(Gv,Ev); 429 0x5: CMOVNZ(Gv,Ev); 430 0x6: CMOVBE(Gv,Ev); 431 0x7: CMOVNBE(Gv,Ev); 432 } 433 0x09: decode OPCODE_OP_BOTTOM3 { 434 0x0: CMOVS(Gv,Ev); 435 0x1: CMOVNS(Gv,Ev); 436 0x2: CMOVP(Gv,Ev); 437 0x3: CMOVNP(Gv,Ev); 438 0x4: CMOVL(Gv,Ev); 439 0x5: CMOVNL(Gv,Ev); 440 0x6: CMOVLE(Gv,Ev); 441 0x7: CMOVNLE(Gv,Ev); 442 } 443 0x0A: decode LEGACY_DECODEVAL { 444 // no prefix 445 0x0: decode OPCODE_OP_BOTTOM3 { 446 0x0: MOVMSKPS(Gd,VRo); 447 0x1: SQRTPS(Vo,Wo); 448 0x2: WarnUnimpl::rqsrtps_Vo_Wo(); 449 0x3: WarnUnimpl::rcpps_Vo_Wo(); 450 0x4: ANDPS(Vo,Wo); 451 0x5: ANDNPS(Vo,Wo); 452 0x6: ORPS(Vo,Wo); 453 0x7: XORPS(Vo,Wo); 454 } 455 // repe (0xF3) 456 0x4: decode OPCODE_OP_BOTTOM3 { 457 0x1: SQRTSS(Vd,Wd); 458 0x2: WarnUnimpl::rsqrtss_Vd_Wd(); 459 0x3: WarnUnimpl::rcpss_Vd_Wd(); 460 default: UD2(); 461 } 462 // operand size (0x66) 463 0x1: decode OPCODE_OP_BOTTOM3 { 464 0x0: MOVMSKPD(Gd,VRo); 465 0x1: SQRTPD(Vo,Wo); 466 0x4: ANDPD(Vo,Wo); 467 0x5: ANDNPD(Vo,Wo); 468 0x6: ORPD(Vo,Wo); 469 0x7: XORPD(Vo,Wo); 470 default: UD2(); 471 } 472 // repne (0xF2) 473 0x8: decode OPCODE_OP_BOTTOM3 { 474 0x1: SQRTSD(Vq,Wq); 475 default: UD2(); 476 } 477 default: UD2(); 478 } 479 0x0B: decode LEGACY_DECODEVAL { 480 // no prefix 481 0x0: decode OPCODE_OP_BOTTOM3 { 482 0x0: ADDPS(Vo,Wo); 483 0x1: MULPS(Vo,Wo); 484 0x2: CVTPS2PD(Vo,Wq); 485 0x3: CVTDQ2PS(Vo,Wo); 486 0x4: SUBPS(Vo,Wo); 487 0x5: MINPS(Vo,Wo); 488 0x6: DIVPS(Vo,Wo); 489 0x7: MAXPS(Vo,Wo); 490 } 491 // repe (0xF3) 492 0x4: decode OPCODE_OP_BOTTOM3 { 493 0x0: ADDSS(Vd,Wd); 494 0x1: MULSS(Vd,Wd); 495 0x2: CVTSS2SD(Vq,Wd); 496 0x3: CVTTPS2DQ(Vo,Wo); 497 0x4: SUBSS(Vd,Wd); 498 0x5: MINSS(Vd,Wd); 499 0x6: DIVSS(Vd,Wd); 500 0x7: MAXSS(Vd,Wd); 501 } 502 // operand size (0x66) 503 0x1: decode OPCODE_OP_BOTTOM3 { 504 0x0: ADDPD(Vo,Wo); 505 0x1: MULPD(Vo,Wo); 506 0x2: CVTPD2PS(Vo,Wo); 507 0x3: CVTPS2DQ(Vo,Wo); 508 0x4: SUBPD(Vo,Wo); 509 0x5: MINPD(Vo,Wo); 510 0x6: DIVPD(Vo,Wo); 511 0x7: MAXPD(Vo,Wo); 512 } 513 // repne (0xF2) 514 0x8: decode OPCODE_OP_BOTTOM3 { 515 0x0: ADDSD(Vq,Wq); 516 0x1: MULSD(Vq,Wq); 517 0x2: CVTSD2SS(Vd,Wq); 518 0x4: SUBSD(Vq,Wq); 519 0x5: MINSD(Vq,Wq); 520 0x6: DIVSD(Vq,Wq); 521 0x7: MAXSD(Vq,Wq); 522 default: UD2(); 523 } 524 default: UD2(); 525 } 526 0x0C: decode LEGACY_DECODEVAL { 527 // no prefix 528 0x0: decode OPCODE_OP_BOTTOM3 { 529 0x0: PUNPCKLBW(Pq,Qd); 530 0x1: PUNPCKLWD(Pq,Qd); 531 0x2: PUNPCKLDQ(Pq,Qd); 532 0x3: PACKSSWB(Pq,Qq); 533 0x4: PCMPGTB(Pq,Qq); 534 0x5: PCMPGTW(Pq,Qq); 535 0x6: PCMPGTD(Pq,Qq); 536 0x7: PACKUSWB(Pq,Qq); 537 } 538 // operand size (0x66) 539 0x1: decode OPCODE_OP_BOTTOM3 { 540 0x0: PUNPCKLBW(Vo,Wq); 541 0x1: PUNPCKLWD(Vo,Wq); 542 0x2: PUNPCKLDQ(Vo,Wq); 543 0x3: PACKSSWB(Vo,Wo); 544 0x4: PCMPGTB(Vo,Wo); 545 0x5: PCMPGTW(Vo,Wo); 546 0x6: PCMPGTD(Vo,Wo); 547 0x7: PACKUSWB(Vo,Wo); 548 } 549 default: UD2(); 550 } 551 0x0D: decode LEGACY_DECODEVAL { 552 // no prefix 553 0x0: decode OPCODE_OP_BOTTOM3 { 554 0x0: PUNPCKHBW(Pq,Qq); 555 0x1: PUNPCKHWD(Pq,Qq); 556 0x2: PUNPCKHDQ(Pq,Qq); 557 0x3: PACKSSDW(Pq,Qq); 558 0x6: MOVD(Pq,Edp); 559 0x7: MOVQ(Pq,Qq); 560 default: UD2(); 561 } 562 // repe (0xF3) 563 0x4: decode OPCODE_OP_BOTTOM3 { 564 0x7: MOVDQU(Vo,Wo); 565 default: UD2(); 566 } 567 // operand size (0x66) 568 0x1: decode OPCODE_OP_BOTTOM3 { 569 0x0: PUNPCKHBW(Vo,Wo); 570 0x1: PUNPCKHWD(Vo,Wo); 571 0x2: PUNPCKHDQ(Vo,Wo); 572 0x3: PACKSSDW(Vo,Wo); 573 0x4: PUNPCKLQDQ(Vo,Wq); 574 0x5: PUNPCKHQDQ(Vo,Wq); 575 0x6: MOVD(Vo,Edp); 576 0x7: MOVDQA(Vo,Wo); 577 } 578 default: UD2(); 579 } 580 0x0E: decode LEGACY_DECODEVAL { 581 // no prefix 582 0x0: decode OPCODE_OP_BOTTOM3 { 583 0x0: PSHUFW(Pq,Qq,Ib); 584 //0x1: group12_pshimw(); 585 0x1: decode MODRM_REG { 586 0x2: PSRLW(PRq,Ib); 587 0x4: PSRAW(PRq,Ib); 588 0x6: PSLLW(PRq,Ib); 589 default: UD2(); 590 } 591 //0x2: group13_pshimd(); 592 0x2: decode MODRM_REG { 593 0x2: PSRLD(PRq,Ib); 594 0x4: PSRAD(PRq,Ib); 595 0x6: PSLLD(PRq,Ib); 596 default: UD2(); 597 } 598 //0x3: group14_pshimq(); 599 0x3: decode MODRM_REG { 600 0x2: PSRLQ(PRq,Ib); 601 0x6: PSLLQ(PRq,Ib); 602 default: Inst::UD2(); 603 } 604 0x4: Inst::PCMPEQB(Pq,Qq); 605 0x5: Inst::PCMPEQW(Pq,Qq); 606 0x6: Inst::PCMPEQD(Pq,Qq); 607 0x7: WarnUnimpl::emms(); 608 } 609 // repe (0xF3) 610 0x4: decode OPCODE_OP_BOTTOM3 { 611 0x0: PSHUFHW(Vo,Wo,Ib); 612 default: UD2(); 613 } 614 // operand size (0x66) 615 0x1: decode OPCODE_OP_BOTTOM3 { 616 0x0: PSHUFD(Vo,Wo,Ib); 617 //0x1: group12_pshimw(); 618 0x1: decode MODRM_REG { 619 0x2: PSRLW(VRo,Ib); 620 0x4: PSRAW(VRo,Ib); 621 0x6: PSLLW(VRo,Ib); 622 } 623 //0x2: group13_pshimd(); 624 0x2: decode MODRM_REG { 625 0x2: PSRLD(VRo,Ib); 626 0x4: PSRAD(VRo,Ib); 627 0x6: PSLLD(VRo,Ib); 628 default: UD2(); 629 } 630 //0x3: group14_pshimq(); 631 0x3: decode MODRM_REG { 632 0x2: PSRLQ(VRo,Ib); 633 0x3: PSRLDQ(VRo,Ib); 634 0x6: PSLLQ(VRo,Ib); 635 0x7: PSLLDQ(VRo,Ib); 636 default: UD2(); 637 } 638 0x4: PCMPEQB(Vo,Wo); 639 0x5: PCMPEQW(Vo,Wo); 640 0x6: PCMPEQD(Vo,Wo); 641 default: UD2(); 642 } 643 // repne (0xF2) 644 0x8: decode OPCODE_OP_BOTTOM3 { 645 0x0: PSHUFLW(Vo,Wo,Ib); 646 default: UD2(); 647 } 648 default: UD2(); 649 } 650 0x0F: decode LEGACY_DECODEVAL { 651 // no prefix 652 0x0: decode OPCODE_OP_BOTTOM3 { 653 0x0: WarnUnimpl::vmread_Edp_Gdp(); 654 0x1: WarnUnimpl::vmwrite_Gdp_Edp(); 655 0x6: MOVD(Edp,Pdp); 656 0x7: MOVQ(Qq,Pq); 657 default: UD2(); 658 } 659 // repe (0xF3) 660 0x4: decode OPCODE_OP_BOTTOM3 { 661 0x6: MOVQ(Vq,Wq); 662 0x7: MOVDQU(Wo,Vo); 663 default: UD2(); 664 } 665 // operand size (0x66) 666 0x1: decode OPCODE_OP_BOTTOM3 { 667 0x4: HADDPD(Vo,Wo); 668 0x5: WarnUnimpl::hsubpd_Vo_Wo(); 669 0x6: MOVD(Edp,Vd); 670 0x7: MOVDQA(Wo,Vo); 671 default: UD2(); 672 } 673 // repne (0xF2) 674 0x8: decode OPCODE_OP_BOTTOM3 { 675 0x4: WarnUnimpl::haddps_Vo_Wo(); 676 0x5: WarnUnimpl::hsubps_Vo_Wo(); 677 default: UD2(); 678 } 679 default: UD2(); 680 } 681 0x10: decode OPCODE_OP_BOTTOM3 { 682 0x0: JO(Jz); 683 0x1: JNO(Jz); 684 0x2: JB(Jz); 685 0x3: JNB(Jz); 686 0x4: JZ(Jz); 687 0x5: JNZ(Jz); 688 0x6: JBE(Jz); 689 0x7: JNBE(Jz); 690 } 691 0x11: decode OPCODE_OP_BOTTOM3 { 692 0x0: JS(Jz); 693 0x1: JNS(Jz); 694 0x2: JP(Jz); 695 0x3: JNP(Jz); 696 0x4: JL(Jz); 697 0x5: JNL(Jz); 698 0x6: JLE(Jz); 699 0x7: JNLE(Jz); 700 } 701 0x12: decode OPCODE_OP_BOTTOM3 { 702 0x0: SETO(Eb); 703 0x1: SETNO(Eb); 704 0x2: SETB(Eb); 705 0x3: SETNB(Eb); 706 0x4: SETZ(Eb); 707 0x5: SETNZ(Eb); 708 0x6: SETBE(Eb); 709 0x7: SETNBE(Eb); 710 } 711 0x13: decode OPCODE_OP_BOTTOM3 { 712 0x0: SETS(Eb); 713 0x1: SETNS(Eb); 714 0x2: SETP(Eb); 715 0x3: SETNP(Eb); 716 0x4: SETL(Eb); 717 0x5: SETNL(Eb); 718 0x6: SETLE(Eb); 719 0x7: SETNLE(Eb); 720 } 721 } 722 0x14: decode OPCODE_OP_BOTTOM3 { 723 0x0: push_fs(); 724 0x1: pop_fs(); 725 0x2: CPUIDInst::CPUID({{ 726 CpuidResult result; 727 success = doCpuid(xc->tcBase(), bits(Rax, 31, 0), 728 bits(Rcx, 31, 0), result); 729 Rax = result.rax; 730 Rbx = result.rbx; 731 Rcx = result.rcx; 732 Rdx = result.rdx; 733 }}); 734 0x3: Inst::BT(Ev,Gv); 735 0x4: Inst::SHLD(Ev,Gv,Ib); 736 0x5: Inst::SHLD(Ev,Gv); 737 default: Inst::UD2(); 738 } 739 0x15: decode OPCODE_OP_BOTTOM3 { 740 0x0: push_gs(); 741 0x1: pop_gs(); 742 0x2: rsm_smm(); 743 0x3: Inst::BTS(Ev,Gv); 744 0x4: Inst::SHRD(Ev,Gv,Ib); 745 0x5: Inst::SHRD(Ev,Gv); 746 //0x6: group15(); 747 0x6: decode MODRM_MOD { 748 0x3: decode MODRM_REG { 749 0x5: BasicOperate::LFENCE( 750 {{/*Nothing*/}}, IsReadBarrier); 751 0x6: BasicOperate::MFENCE( 752 {{/*Nothing*/}}, IsMemBarrier); 753 0x7: BasicOperate::SFENCE( 754 {{/*Nothing*/}}, IsWriteBarrier); 755 default: Inst::UD2(); 756 } 757 default: decode MODRM_REG { 758 0x0: fxsave(); 759 0x1: fxrstor(); 760 0x2: Inst::LDMXCSR(Md); 761 0x3: Inst::STMXCSR(Md); 762 0x4: xsave(); 763 0x5: xrstor(); 764 0x6: Inst::UD2(); 765 0x7: clflush(); 766 } 767 } 768 0x7: Inst::IMUL(Gv,Ev); 769 } 770 format Inst { 771 0x16: decode OPCODE_OP_BOTTOM3 { 772 0x0: CMPXCHG(Eb,Gb); 773 0x1: CMPXCHG(Ev,Gv); 774 0x2: WarnUnimpl::lss_Gz_Mp(); 775 0x3: BTR(Ev,Gv); 776 0x4: WarnUnimpl::lfs_Gz_Mp(); 777 0x5: WarnUnimpl::lgs_Gz_Mp(); 778 //The size of the second operand in these instructions 779 //should really be "b" or "w", but it's set to v in order 780 //to have a consistent register size. This shouldn't 781 //affect behavior. 782 0x6: MOVZX_B(Gv,Ev); 783 0x7: MOVZX_W(Gv,Ev); 784 } 785 0x17: decode OPCODE_OP_BOTTOM3 { 786 0x0: decode LEGACY_REP { 787 0x0: WarnUnimpl::jmpe_Jz(); 788 0x1: WarnUnimpl::popcnt_Gv_Ev(); 789 } 790 //0x1: group10_UD2(); 791 0x1: UD2(); 792 //0x2: group8_Ev_Ib(); 793 0x2: decode MODRM_REG { 794 0x4: BT(Ev,Ib); 795 0x5: BTS(Ev,Ib); 796 0x6: BTR(Ev,Ib); 797 0x7: BTC(Ev,Ib); 798 default: UD2(); 799 } 800 0x3: BTC(Ev,Gv); 801 0x4: BSF(Gv,Ev); 802 0x5: BSR(Gv,Ev); 803 //The size of the second operand in these instructions 804 //should really be "b" or "w", but it's set to v in order 805 //to have a consistent register size. This shouldn't 806 //affect behavior. 807 0x6: MOVSX_B(Gv,Ev); 808 0x7: MOVSX_W(Gv,Ev); 809 } 810 0x18: decode OPCODE_OP_BOTTOM3 { 811 0x0: XADD(Eb,Gb); 812 0x1: XADD(Ev,Gv); 813 //0x7: group9(); 814 0x7: decode MODRM_REG { 815 //Also CMPXCHG16B 816 0x1: CMPXCHG8B(Mdp); 817 0x6: decode LEGACY_OP { 818 0x1: WarnUnimpl::vmclear_Mq(); 819 default: decode LEGACY_REP { 820 0x1: WarnUnimpl::vmxon_Mq(); 821 0x0: WarnUnimpl::vmptrld_Mq(); 822 } 823 } 824 0x7: WarnUnimpl::vmptrst_Mq(); 825 default: UD2(); 826 } 827 default: decode LEGACY_DECODEVAL { 828 // no prefix 829 0x0: decode OPCODE_OP_BOTTOM3 { 830 0x2: CMPPS(Vo,Wo,Ib); 831 0x3: MOVNTI(Mdp,Gdp); 832 0x4: PINSRW(Pq,Ew,Ib); 833 0x5: PEXTRW(Gd,PRq,Ib); 834 0x6: SHUFPS(Vps,Wps,Ib); 835 } 836 // repe (0xF3) 837 0x4: decode OPCODE_OP_BOTTOM3 { 838 0x2: CMPSS(Vd,Wd,Ib); 839 default: UD2(); 840 } 841 // operand size (0x66) 842 0x1: decode OPCODE_OP_BOTTOM3 { 843 0x2: CMPPD(Vo,Wo,Ib); 844 0x4: PINSRW(Vdw,Ew,Ib); 845 0x5: PEXTRW(Gd,VRdq,Ib); 846 0x6: SHUFPD(Vpd,Wpd,Ib); 847 default: UD2(); 848 } 849 // repne (0xF2) 850 0x8: decode OPCODE_OP_BOTTOM3 { 851 0x2: CMPSD(Vq,Wq,Ib); 852 default: UD2(); 853 } 854 default: UD2(); 855 } 856 } 857 0x19: decode OPSIZE { 858 4: BSWAP_D(Bd); 859 8: BSWAP_Q(Bq); 860 default: UD2(); 861 } 862 0x1A: decode LEGACY_DECODEVAL { 863 // no prefix 864 0x0: decode OPCODE_OP_BOTTOM3 { 865 0x1: PSRLW(Pq,Qq); 866 0x2: PSRLD(Pq,Qq); 867 0x3: PSRLQ(Pq,Qq); 868 0x4: PADDQ(Pq,Qq); 869 0x5: PMULLW(Pq,Qq); 870 0x7: PMOVMSKB(Gd,PRq); 871 default: UD2(); 872 } 873 // repe (0xF3) 874 0x4: decode OPCODE_OP_BOTTOM3 { 875 0x6: MOVQ2DQ(Vo,PRq); 876 default: UD2(); 877 } 878 // operand size (0x66) 879 0x1: decode OPCODE_OP_BOTTOM3 { 880 0x0: WarnUnimpl::addsubpd_Vo_Wo(); 881 0x1: PSRLW(Vo,Wo); 882 0x2: PSRLD(Vo,Wo); 883 0x3: PSRLQ(Vo,Wo); 884 0x4: PADDQ(Vo,Wo); 885 0x5: PMULLW(Vo,Wo); 886 0x6: MOVQ(Wq,Vq); 887 0x7: PMOVMSKB(Gd,VRo); 888 } 889 // repne (0xF2) 890 0x8: decode OPCODE_OP_BOTTOM3 { 891 0x0: WarnUnimpl::addsubps_Vo_Wo(); 892 0x6: MOVDQ2Q(Pq,VRq); 893 default: UD2(); 894 } 895 default: UD2(); 896 } 897 0x1B: decode LEGACY_DECODEVAL { 898 // no prefix 899 0x0: decode OPCODE_OP_BOTTOM3 { 900 0x0: PSUBUSB(Pq,Qq); 901 0x1: PSUBUSW(Pq,Qq); 902 0x2: PMINUB(Pq,Qq); 903 0x3: PAND(Pq,Qq); 904 0x4: PADDUSB(Pq,Qq); 905 0x5: PADDUSW(Pq,Qq); 906 0x6: PMAXUB(Pq,Qq); 907 0x7: PANDN(Pq,Qq); 908 } 909 // operand size (0x66) 910 0x1: decode OPCODE_OP_BOTTOM3 { 911 0x0: PSUBUSB(Vo,Wo); 912 0x1: PSUBUSW(Vo,Wo); 913 0x2: PMINUB(Vo,Wo); 914 0x3: PAND(Vo,Wo); 915 0x4: PADDUSB(Vo,Wo); 916 0x5: PADDUSW(Vo,Wo); 917 0x6: PMAXUB(Vo,Wo); 918 0x7: PANDN(Vo,Wo); 919 } 920 default: UD2(); 921 } 922 0x1C: decode LEGACY_DECODEVAL { 923 // no prefix 924 0x0: decode OPCODE_OP_BOTTOM3 { 925 0x0: PAVGB(Pq,Qq); 926 0x1: PSRAW(Pq,Qq); 927 0x2: PSRAD(Pq,Qq); 928 0x3: PAVGW(Pq,Qq); 929 0x4: PMULHUW(Pq,Qq); 930 0x5: PMULHW(Pq,Qq); 931 0x7: WarnUnimpl::movntq_Mq_Pq(); 932 default: UD2(); 933 } 934 // repe (0xF3) 935 0x4: decode OPCODE_OP_BOTTOM3 { 936 0x6: CVTDQ2PD(Vo,Wq); 937 default: UD2(); 938 } 939 // operand size (0x66) 940 0x1: decode OPCODE_OP_BOTTOM3 { 941 0x0: PAVGB(Vo,Wo); 942 0x1: PSRAW(Vo,Wo); 943 0x2: PSRAD(Vo,Wo); 944 0x3: PAVGW(Vo,Wo); 945 0x4: PMULHUW(Vo,Wo); 946 0x5: PMULHW(Vo,Wo); 947 0x6: CVTTPD2DQ(Vo,Wo); 948 0x7: WarnUnimpl::movntdq_Mo_Vo(); 949 } 950 // repne (0xF2) 951 0x8: decode OPCODE_OP_BOTTOM3 { 952 0x6: CVTPD2DQ(Vo,Wo); 953 default: UD2(); 954 } 955 default: UD2(); 956 } 957 0x1D: decode LEGACY_DECODEVAL { 958 // no prefix 959 0x0: decode OPCODE_OP_BOTTOM3 { 960 0x0: PSUBSB(Pq,Qq); 961 0x1: PSUBSW(Pq,Qq); 962 0x2: PMINSW(Pq,Qq); 963 0x3: POR(Pq,Qq); 964 0x4: PADDSB(Pq,Qq); 965 0x5: PADDSW(Pq,Qq); 966 0x6: PMAXSW(Pq,Qq); 967 0x7: PXOR(Pq,Qq); 968 } 969 // operand size (0x66) 970 0x1: decode OPCODE_OP_BOTTOM3 { 971 0x0: PSUBSB(Vo,Wo); 972 0x1: PSUBSW(Vo,Wo); 973 0x2: PMINSW(Vo,Wo); 974 0x3: POR(Vo,Wo); 975 0x4: PADDSB(Vo,Wo); 976 0x5: PADDSW(Vo,Wo); 977 0x6: PMAXSW(Vo,Wo); 978 0x7: PXOR(Vo,Wo); 979 } 980 default: UD2(); 981 } 982 0x1E: decode LEGACY_DECODEVAL { 983 // no prefix 984 0x0: decode OPCODE_OP_BOTTOM3 { 985 0x1: PSLLW(Pq,Qq); 986 0x2: PSLLD(Pq,Qq); 987 0x3: PSLLQ(Pq,Qq); 988 0x4: PMULUDQ(Pq,Qq); 989 0x5: PMADDWD(Pq,Qq); 990 0x6: PSADBW(Pq,Qq); 991 0x7: MASKMOVQ(Pq,PRq); 992 default: UD2(); 993 } 994 // operand size (0x66) 995 0x1: decode OPCODE_OP_BOTTOM3 { 996 0x1: PSLLW(Vo,Wo); 997 0x2: PSLLD(Vo,Wo); 998 0x3: PSLLQ(Vo,Wo); 999 0x4: PMULUDQ(Vo,Wo); 1000 0x5: PMADDWD(Vo,Wo); 1001 0x6: PSADBW(Vo,Wo); 1002 0x7: MASKMOVDQU(Vo,VRo); 1003 default: UD2(); 1004 } 1005 // repne (0xF2) 1006 0x8: decode OPCODE_OP_BOTTOM3 { 1007 0x0: WarnUnimpl::lddqu_Vo_Mo(); 1008 default: UD2(); 1009 } 1010 default: UD2(); 1011 } 1012 0x1F: decode LEGACY_DECODEVAL { 1013 // no prefix 1014 0x0: decode OPCODE_OP_BOTTOM3 { 1015 0x0: PSUBB(Pq,Qq); 1016 0x1: PSUBW(Pq,Qq); 1017 0x2: PSUBD(Pq,Qq); 1018 0x3: PSUBQ(Pq,Qq); 1019 0x4: PADDB(Pq,Qq); 1020 0x5: PADDW(Pq,Qq); 1021 0x6: PADDD(Pq,Qq); 1022 0x7: UD2(); 1023 } 1024 // operand size (0x66) 1025 0x1: decode OPCODE_OP_BOTTOM3 { 1026 0x0: PSUBB(Vo,Wo); 1027 0x1: PSUBW(Vo,Wo); 1028 0x2: PSUBD(Vo,Wo); 1029 0x3: PSUBQ(Vo,Wo); 1030 0x4: PADDB(Vo,Wo); 1031 0x5: PADDW(Vo,Wo); 1032 0x6: PADDD(Vo,Wo); 1033 0x7: UD2(); 1034 } 1035 default: UD2(); 1036 } 1037 } 1038 default: FailUnimpl::twoByteOps(); 1039 } 1040 } 1041 default: M5InternalError::error( 1042 {{"Unexpected first opcode byte in two byte opcode!"}}); 1043} 1044