1 // Copyright 2015, VIXL authors 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 met: 6 // 7 // * Redistributions of source code must retain the above copyright notice, 8 // this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above copyright 10 // notice, this list of conditions and the following disclaimer in the 11 // documentation and/or other materials provided with the distribution. 12 // * Neither the name of ARM Limited nor the names of its contributors may 13 // be used to endorse or promote products derived from this software 14 // without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND 17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 20 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 // POSSIBILITY OF SUCH DAMAGE. 27 28 #ifndef VIXL_CONSTANTS_AARCH32_H_ 29 #define VIXL_CONSTANTS_AARCH32_H_ 30 31 extern "C" { 32 #include <stdint.h> 33 } 34 35 #include "globals-vixl.h" 36 37 38 namespace vixl { 39 namespace aarch32 { 40 41 enum InstructionSet { A32, T32 }; 42 #ifdef VIXL_INCLUDE_TARGET_T32_ONLY 43 const InstructionSet kDefaultISA = T32; 44 #else 45 const InstructionSet kDefaultISA = A32; 46 #endif 47 48 const unsigned kRegSizeInBits = 32; 49 const unsigned kRegSizeInBytes = kRegSizeInBits / 8; 50 const unsigned kSRegSizeInBits = 32; 51 const unsigned kSRegSizeInBytes = kSRegSizeInBits / 8; 52 const unsigned kDRegSizeInBits = 64; 53 const unsigned kDRegSizeInBytes = kDRegSizeInBits / 8; 54 const unsigned kQRegSizeInBits = 128; 55 const unsigned kQRegSizeInBytes = kQRegSizeInBits / 8; 56 57 const unsigned kNumberOfRegisters = 16; 58 const unsigned kNumberOfSRegisters = 32; 59 const unsigned kMaxNumberOfDRegisters = 32; 60 const unsigned kNumberOfQRegisters = 16; 61 const unsigned kNumberOfT32LowRegisters = 8; 62 63 const unsigned kIpCode = 12; 64 const unsigned kSpCode = 13; 65 const unsigned kLrCode = 14; 66 const unsigned kPcCode = 15; 67 68 const unsigned kT32PcDelta = 4; 69 const unsigned kA32PcDelta = 8; 70 71 const unsigned kRRXEncodedValue = 3; 72 73 const unsigned kCoprocMask = 0xe; 74 const unsigned kInvalidCoprocMask = 0xa; 75 76 const unsigned kLowestT32_32Opcode = 0xe8000000; 77 78 const uint32_t kUnknownValue = 0xdeadbeef; 79 80 const uint32_t kMaxInstructionSizeInBytes = 4; 81 const uint32_t kA32InstructionSizeInBytes = 4; 82 const uint32_t k32BitT32InstructionSizeInBytes = 4; 83 const uint32_t k16BitT32InstructionSizeInBytes = 2; 84 85 // Maximum size emitted by a single T32 unconditional macro-instruction. 86 const uint32_t kMaxT32MacroInstructionSizeInBytes = 32; 87 88 const uint32_t kCallerSavedRegistersMask = 0x500f; 89 90 const uint16_t k16BitT32NopOpcode = 0xbf00; 91 const uint16_t kCbzCbnzMask = 0xf500; 92 const uint16_t kCbzCbnzValue = 0xb100; 93 94 const int32_t kCbzCbnzRange = 126; 95 const int32_t kBConditionalNarrowRange = 254; 96 const int32_t kBNarrowRange = 2046; 97 const int32_t kNearLabelRange = kBNarrowRange; 98 99 enum SystemFunctionsOpcodes { kPrintfCode }; 100 101 enum BranchHint { kNear, kFar, kBranchWithoutHint }; 102 103 // Start of generated code. 104 // AArch32 version implemented by the library (v8.0). 105 // The encoding for vX.Y is: (X << 8) | Y. 106 #define AARCH32_VERSION 0x0800 107 108 enum InstructionAttribute { 109 kNoAttribute = 0, 110 kArithmetic = 0x1, 111 kBitwise = 0x2, 112 kShift = 0x4, 113 kAddress = 0x8, 114 kBranch = 0x10, 115 kSystem = 0x20, 116 kFpNeon = 0x40, 117 kLoadStore = 0x80, 118 kLoadStoreMultiple = 0x100 119 }; 120 121 enum InstructionType { 122 kUndefInstructionType, 123 kAdc, 124 kAdcs, 125 kAdd, 126 kAdds, 127 kAddw, 128 kAdr, 129 kAnd, 130 kAnds, 131 kAsr, 132 kAsrs, 133 kB, 134 kBfc, 135 kBfi, 136 kBic, 137 kBics, 138 kBkpt, 139 kBl, 140 kBlx, 141 kBx, 142 kBxj, 143 kCbnz, 144 kCbz, 145 kClrex, 146 kClz, 147 kCmn, 148 kCmp, 149 kCrc32b, 150 kCrc32cb, 151 kCrc32ch, 152 kCrc32cw, 153 kCrc32h, 154 kCrc32w, 155 kDmb, 156 kDsb, 157 kEor, 158 kEors, 159 kFldmdbx, 160 kFldmiax, 161 kFstmdbx, 162 kFstmiax, 163 kHlt, 164 kHvc, 165 kIsb, 166 kIt, 167 kLda, 168 kLdab, 169 kLdaex, 170 kLdaexb, 171 kLdaexd, 172 kLdaexh, 173 kLdah, 174 kLdm, 175 kLdmda, 176 kLdmdb, 177 kLdmea, 178 kLdmed, 179 kLdmfa, 180 kLdmfd, 181 kLdmib, 182 kLdr, 183 kLdrb, 184 kLdrd, 185 kLdrex, 186 kLdrexb, 187 kLdrexd, 188 kLdrexh, 189 kLdrh, 190 kLdrsb, 191 kLdrsh, 192 kLsl, 193 kLsls, 194 kLsr, 195 kLsrs, 196 kMla, 197 kMlas, 198 kMls, 199 kMov, 200 kMovs, 201 kMovt, 202 kMovw, 203 kMrs, 204 kMsr, 205 kMul, 206 kMuls, 207 kMvn, 208 kMvns, 209 kNop, 210 kOrn, 211 kOrns, 212 kOrr, 213 kOrrs, 214 kPkhbt, 215 kPkhtb, 216 kPld, 217 kPldw, 218 kPli, 219 kPop, 220 kPush, 221 kQadd, 222 kQadd16, 223 kQadd8, 224 kQasx, 225 kQdadd, 226 kQdsub, 227 kQsax, 228 kQsub, 229 kQsub16, 230 kQsub8, 231 kRbit, 232 kRev, 233 kRev16, 234 kRevsh, 235 kRor, 236 kRors, 237 kRrx, 238 kRrxs, 239 kRsb, 240 kRsbs, 241 kRsc, 242 kRscs, 243 kSadd16, 244 kSadd8, 245 kSasx, 246 kSbc, 247 kSbcs, 248 kSbfx, 249 kSdiv, 250 kSel, 251 kShadd16, 252 kShadd8, 253 kShasx, 254 kShsax, 255 kShsub16, 256 kShsub8, 257 kSmlabb, 258 kSmlabt, 259 kSmlad, 260 kSmladx, 261 kSmlal, 262 kSmlalbb, 263 kSmlalbt, 264 kSmlald, 265 kSmlaldx, 266 kSmlals, 267 kSmlaltb, 268 kSmlaltt, 269 kSmlatb, 270 kSmlatt, 271 kSmlawb, 272 kSmlawt, 273 kSmlsd, 274 kSmlsdx, 275 kSmlsld, 276 kSmlsldx, 277 kSmmla, 278 kSmmlar, 279 kSmmls, 280 kSmmlsr, 281 kSmmul, 282 kSmmulr, 283 kSmuad, 284 kSmuadx, 285 kSmulbb, 286 kSmulbt, 287 kSmull, 288 kSmulls, 289 kSmultb, 290 kSmultt, 291 kSmulwb, 292 kSmulwt, 293 kSmusd, 294 kSmusdx, 295 kSsat, 296 kSsat16, 297 kSsax, 298 kSsub16, 299 kSsub8, 300 kStl, 301 kStlb, 302 kStlex, 303 kStlexb, 304 kStlexd, 305 kStlexh, 306 kStlh, 307 kStm, 308 kStmda, 309 kStmdb, 310 kStmea, 311 kStmed, 312 kStmfa, 313 kStmfd, 314 kStmib, 315 kStr, 316 kStrb, 317 kStrd, 318 kStrex, 319 kStrexb, 320 kStrexd, 321 kStrexh, 322 kStrh, 323 kSub, 324 kSubs, 325 kSubw, 326 kSvc, 327 kSxtab, 328 kSxtab16, 329 kSxtah, 330 kSxtb, 331 kSxtb16, 332 kSxth, 333 kTbb, 334 kTbh, 335 kTeq, 336 kTst, 337 kUadd16, 338 kUadd8, 339 kUasx, 340 kUbfx, 341 kUdf, 342 kUdiv, 343 kUhadd16, 344 kUhadd8, 345 kUhasx, 346 kUhsax, 347 kUhsub16, 348 kUhsub8, 349 kUmaal, 350 kUmlal, 351 kUmlals, 352 kUmull, 353 kUmulls, 354 kUqadd16, 355 kUqadd8, 356 kUqasx, 357 kUqsax, 358 kUqsub16, 359 kUqsub8, 360 kUsad8, 361 kUsada8, 362 kUsat, 363 kUsat16, 364 kUsax, 365 kUsub16, 366 kUsub8, 367 kUxtab, 368 kUxtab16, 369 kUxtah, 370 kUxtb, 371 kUxtb16, 372 kUxth, 373 kVaba, 374 kVabal, 375 kVabd, 376 kVabdl, 377 kVabs, 378 kVacge, 379 kVacgt, 380 kVacle, 381 kVaclt, 382 kVadd, 383 kVaddhn, 384 kVaddl, 385 kVaddw, 386 kVand, 387 kVbic, 388 kVbif, 389 kVbit, 390 kVbsl, 391 kVceq, 392 kVcge, 393 kVcgt, 394 kVcle, 395 kVcls, 396 kVclt, 397 kVclz, 398 kVcmp, 399 kVcmpe, 400 kVcnt, 401 kVcvt, 402 kVcvta, 403 kVcvtb, 404 kVcvtm, 405 kVcvtn, 406 kVcvtp, 407 kVcvtr, 408 kVcvtt, 409 kVdiv, 410 kVdup, 411 kVeor, 412 kVext, 413 kVfma, 414 kVfms, 415 kVfnma, 416 kVfnms, 417 kVhadd, 418 kVhsub, 419 kVld1, 420 kVld2, 421 kVld3, 422 kVld4, 423 kVldm, 424 kVldmdb, 425 kVldmia, 426 kVldr, 427 kVmax, 428 kVmaxnm, 429 kVmin, 430 kVminnm, 431 kVmla, 432 kVmlal, 433 kVmls, 434 kVmlsl, 435 kVmov, 436 kVmovl, 437 kVmovn, 438 kVmrs, 439 kVmsr, 440 kVmul, 441 kVmull, 442 kVmvn, 443 kVneg, 444 kVnmla, 445 kVnmls, 446 kVnmul, 447 kVorn, 448 kVorr, 449 kVpadal, 450 kVpadd, 451 kVpaddl, 452 kVpmax, 453 kVpmin, 454 kVpop, 455 kVpush, 456 kVqabs, 457 kVqadd, 458 kVqdmlal, 459 kVqdmlsl, 460 kVqdmulh, 461 kVqdmull, 462 kVqmovn, 463 kVqmovun, 464 kVqneg, 465 kVqrdmulh, 466 kVqrshl, 467 kVqrshrn, 468 kVqrshrun, 469 kVqshl, 470 kVqshlu, 471 kVqshrn, 472 kVqshrun, 473 kVqsub, 474 kVraddhn, 475 kVrecpe, 476 kVrecps, 477 kVrev16, 478 kVrev32, 479 kVrev64, 480 kVrhadd, 481 kVrinta, 482 kVrintm, 483 kVrintn, 484 kVrintp, 485 kVrintr, 486 kVrintx, 487 kVrintz, 488 kVrshl, 489 kVrshr, 490 kVrshrn, 491 kVrsqrte, 492 kVrsqrts, 493 kVrsra, 494 kVrsubhn, 495 kVseleq, 496 kVselge, 497 kVselgt, 498 kVselvs, 499 kVshl, 500 kVshll, 501 kVshr, 502 kVshrn, 503 kVsli, 504 kVsqrt, 505 kVsra, 506 kVsri, 507 kVst1, 508 kVst2, 509 kVst3, 510 kVst4, 511 kVstm, 512 kVstmdb, 513 kVstmia, 514 kVstr, 515 kVsub, 516 kVsubhn, 517 kVsubl, 518 kVsubw, 519 kVswp, 520 kVtbl, 521 kVtbx, 522 kVtrn, 523 kVtst, 524 kVuzp, 525 kVzip, 526 kYield 527 }; 528 529 const char* ToCString(InstructionType type); 530 // End of generated code. 531 532 inline InstructionAttribute operator|(InstructionAttribute left, 533 InstructionAttribute right) { 534 return static_cast<InstructionAttribute>(static_cast<uint32_t>(left) | 535 static_cast<uint32_t>(right)); 536 } 537 538 } // namespace aarch32 539 } // namespace vixl 540 541 #endif // VIXL_CONSTANTS_AARCH32_H_ 542
