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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/disassembler.h" | 5 #include "vm/disassembler.h" |
| 6 | 6 |
| 7 #include "vm/globals.h" // Needed here to get TARGET_ARCH_IA32. | 7 #include "vm/globals.h" // Needed here to get TARGET_ARCH_IA32. |
| 8 #if defined(TARGET_ARCH_IA32) | 8 #if defined(TARGET_ARCH_IA32) |
| 9 #include "platform/utils.h" | 9 #include "platform/utils.h" |
| 10 #include "vm/allocation.h" | 10 #include "vm/allocation.h" |
| (...skipping 219 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 230 case 0x31: return "rdtsc"; | 230 case 0x31: return "rdtsc"; |
| 231 case 0xBE: return "movsx_b"; | 231 case 0xBE: return "movsx_b"; |
| 232 case 0xBF: return "movsx_w"; | 232 case 0xBF: return "movsx_w"; |
| 233 case 0xB6: return "movzx_b"; | 233 case 0xB6: return "movzx_b"; |
| 234 case 0xB7: return "movzx_w"; | 234 case 0xB7: return "movzx_w"; |
| 235 case 0xAF: return "imul"; | 235 case 0xAF: return "imul"; |
| 236 case 0xA5: return "shld"; | 236 case 0xA5: return "shld"; |
| 237 case 0xAD: return "shrd"; | 237 case 0xAD: return "shrd"; |
| 238 case 0xAB: return "bts"; | 238 case 0xAB: return "bts"; |
| 239 case 0xB1: return "cmpxchg"; | 239 case 0xB1: return "cmpxchg"; |
| 240 case 0x50: return "movmskps"; |
| 241 case 0x51: return "sqrtps"; |
| 242 case 0x52: return "rqstps"; |
| 243 case 0x53: return "rcpps"; |
| 244 case 0x54: return "andps"; |
| 245 case 0x56: return "orps"; |
| 240 case 0x57: return "xorps"; | 246 case 0x57: return "xorps"; |
| 247 case 0x58: return "addps"; |
| 248 case 0x59: return "mulps"; |
| 249 case 0x5C: return "subps"; |
| 250 case 0x5D: return "minps"; |
| 251 case 0x5E: return "divps"; |
| 252 case 0x5F: return "maxps"; |
| 241 case 0x28: return "movaps"; | 253 case 0x28: return "movaps"; |
| 254 case 0x10: return "movups"; |
| 255 case 0x11: return "movups"; |
| 242 default: return NULL; | 256 default: return NULL; |
| 243 } | 257 } |
| 244 } | 258 } |
| 245 | 259 |
| 246 | 260 |
| 247 // The implementation of x86 decoding based on the above tables. | 261 // The implementation of x86 decoding based on the above tables. |
| 248 class X86Decoder : public ValueObject { | 262 class X86Decoder : public ValueObject { |
| 249 public: | 263 public: |
| 250 X86Decoder(char* buffer, intptr_t buffer_size) | 264 X86Decoder(char* buffer, intptr_t buffer_size) |
| 251 : buffer_(buffer), | 265 : buffer_(buffer), |
| (...skipping 27 matching lines...) Expand all Loading... |
| 279 const char* GetBranchPrefix(uint8_t** data); | 293 const char* GetBranchPrefix(uint8_t** data); |
| 280 | 294 |
| 281 bool DecodeInstructionType(const InstructionDesc& idesc, | 295 bool DecodeInstructionType(const InstructionDesc& idesc, |
| 282 const char* branch_hint, | 296 const char* branch_hint, |
| 283 uint8_t** data); | 297 uint8_t** data); |
| 284 | 298 |
| 285 // Printing of common values. | 299 // Printing of common values. |
| 286 void PrintCPURegister(int reg); | 300 void PrintCPURegister(int reg); |
| 287 void PrintCPUByteRegister(int reg); | 301 void PrintCPUByteRegister(int reg); |
| 288 void PrintXmmRegister(int reg); | 302 void PrintXmmRegister(int reg); |
| 303 void PrintXmmComparison(int comparison); |
| 289 void PrintAddress(uword addr); | 304 void PrintAddress(uword addr); |
| 290 | 305 |
| 291 typedef void (X86Decoder::*RegisterNamePrinter)(int reg); | 306 typedef void (X86Decoder::*RegisterNamePrinter)(int reg); |
| 292 | 307 |
| 293 int PrintRightOperandHelper(uint8_t* modrmp, | 308 int PrintRightOperandHelper(uint8_t* modrmp, |
| 294 RegisterNamePrinter register_printer); | 309 RegisterNamePrinter register_printer); |
| 295 int PrintRightOperand(uint8_t* modrmp); | 310 int PrintRightOperand(uint8_t* modrmp); |
| 296 int PrintRightXmmOperand(uint8_t* modrmp); | 311 int PrintRightXmmOperand(uint8_t* modrmp); |
| 297 int PrintRightByteOperand(uint8_t* modrmp); | 312 int PrintRightByteOperand(uint8_t* modrmp); |
| 298 int PrintOperands(const char* mnem, OperandOrder op_order, uint8_t* data); | 313 int PrintOperands(const char* mnem, OperandOrder op_order, uint8_t* data); |
| (...skipping 89 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 388 UNIMPLEMENTED(); | 403 UNIMPLEMENTED(); |
| 389 } | 404 } |
| 390 | 405 |
| 391 | 406 |
| 392 void X86Decoder::PrintXmmRegister(int reg) { | 407 void X86Decoder::PrintXmmRegister(int reg) { |
| 393 ASSERT(0 <= reg); | 408 ASSERT(0 <= reg); |
| 394 ASSERT(reg < kMaxXmmRegisters); | 409 ASSERT(reg < kMaxXmmRegisters); |
| 395 Print(xmm_regs[reg]); | 410 Print(xmm_regs[reg]); |
| 396 } | 411 } |
| 397 | 412 |
| 413 void X86Decoder::PrintXmmComparison(int comparison) { |
| 414 ASSERT(0 <= comparison); |
| 415 ASSERT(comparison < 8); |
| 416 static const char* comparisons[8] = { |
| 417 "eq", "lt", "le", "unordered", "not eq", "not lt", "not le", "ordered" |
| 418 }; |
| 419 Print(comparisons[comparison]); |
| 420 } |
| 421 |
| 398 | 422 |
| 399 static const char* ObjectToCStringNoGC(const Object& obj) { | 423 static const char* ObjectToCStringNoGC(const Object& obj) { |
| 400 if (obj.IsSmi() || | 424 if (obj.IsSmi() || |
| 401 obj.IsMint() || | 425 obj.IsMint() || |
| 402 obj.IsDouble() || | 426 obj.IsDouble() || |
| 403 obj.IsString() || | 427 obj.IsString() || |
| 404 obj.IsNull() || | 428 obj.IsNull() || |
| 405 obj.IsBool() || | 429 obj.IsBool() || |
| 406 obj.IsClass() || | 430 obj.IsClass() || |
| 407 obj.IsFunction() || | 431 obj.IsFunction() || |
| (...skipping 922 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 1330 } | 1354 } |
| 1331 } else if (f0byte == 0x28) { | 1355 } else if (f0byte == 0x28) { |
| 1332 // movaps | 1356 // movaps |
| 1333 Print(f0mnem); | 1357 Print(f0mnem); |
| 1334 int mod, regop, rm; | 1358 int mod, regop, rm; |
| 1335 GetModRm(*data, &mod, ®op, &rm); | 1359 GetModRm(*data, &mod, ®op, &rm); |
| 1336 Print(" "); | 1360 Print(" "); |
| 1337 PrintXmmRegister(regop); | 1361 PrintXmmRegister(regop); |
| 1338 Print(","); | 1362 Print(","); |
| 1339 data += PrintRightXmmOperand(data); | 1363 data += PrintRightXmmOperand(data); |
| 1364 } else if (f0byte == 0x11) { |
| 1365 Print("movups "); |
| 1366 int mod, regop, rm; |
| 1367 GetModRm(*data, &mod, ®op, &rm); |
| 1368 data += PrintRightXmmOperand(data); |
| 1369 Print(","); |
| 1370 PrintXmmRegister(regop); |
| 1371 } else if (f0byte == 0x10) { |
| 1372 int mod, regop, rm; |
| 1373 GetModRm(*data, &mod, ®op, &rm); |
| 1374 Print("movups "); |
| 1375 PrintXmmRegister(regop); |
| 1376 Print(","); |
| 1377 data += PrintRightOperand(data); |
| 1378 } else if (f0byte == 0x51 || f0byte == 0x52 || f0byte == 0x53 || |
| 1379 f0byte == 0x54 || f0byte == 0x56 || f0byte == 0x58 || |
| 1380 f0byte == 0x59 || f0byte == 0x5C || f0byte == 0x5D || |
| 1381 f0byte == 0x5E || f0byte == 0x5F) { |
| 1382 int mod, regop, rm; |
| 1383 GetModRm(*data, &mod, ®op, &rm); |
| 1384 Print(f0mnem); |
| 1385 Print(" "); |
| 1386 PrintXmmRegister(regop); |
| 1387 Print(","); |
| 1388 data += PrintRightXmmOperand(data); |
| 1389 } else if (f0byte == 0x50) { |
| 1390 Print("movmskpd "); |
| 1391 int mod, regop, rm; |
| 1392 GetModRm(*data, &mod, ®op, &rm); |
| 1393 PrintCPURegister(regop); |
| 1394 Print(","); |
| 1395 data += PrintRightXmmOperand(data); |
| 1396 } else if (f0byte == 0xC2 || f0byte == 0xC6) { |
| 1397 if (f0byte == 0xC2) |
| 1398 Print("cmpps "); |
| 1399 else |
| 1400 Print("shufps "); |
| 1401 int mod, regop, rm; |
| 1402 GetModRm(*data, &mod, ®op, &rm); |
| 1403 Print(" "); |
| 1404 PrintXmmRegister(regop); |
| 1405 Print(","); |
| 1406 data += PrintRightXmmOperand(data); |
| 1407 int comparison = *data; |
| 1408 Print(" ["); |
| 1409 PrintHex(comparison); |
| 1410 Print("]"); |
| 1411 data++; |
| 1340 } else { | 1412 } else { |
| 1341 UNIMPLEMENTED(); | 1413 UNIMPLEMENTED(); |
| 1342 } | 1414 } |
| 1343 } | 1415 } |
| 1344 } | 1416 } |
| 1345 break; | 1417 break; |
| 1346 | 1418 |
| 1347 case 0x8F: | 1419 case 0x8F: |
| 1348 { data++; | 1420 { data++; |
| 1349 int mod, regop, rm; | 1421 int mod, regop, rm; |
| (...skipping 370 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 1720 human_buffer, | 1792 human_buffer, |
| 1721 sizeof(human_buffer), | 1793 sizeof(human_buffer), |
| 1722 pc); | 1794 pc); |
| 1723 pc += instruction_length; | 1795 pc += instruction_length; |
| 1724 } | 1796 } |
| 1725 } | 1797 } |
| 1726 | 1798 |
| 1727 } // namespace dart | 1799 } // namespace dart |
| 1728 | 1800 |
| 1729 #endif // defined TARGET_ARCH_IA32 | 1801 #endif // defined TARGET_ARCH_IA32 |
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