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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 1253 // CPUID | 1253 // CPUID |
| 1254 AppendToBuffer("%s", mnemonic); | 1254 AppendToBuffer("%s", mnemonic); |
| 1255 | 1255 |
| 1256 } else if ((opcode & 0xF0) == 0x40) { | 1256 } else if ((opcode & 0xF0) == 0x40) { |
| 1257 // CMOVcc: conditional move. | 1257 // CMOVcc: conditional move. |
| 1258 int condition = opcode & 0x0F; | 1258 int condition = opcode & 0x0F; |
| 1259 const InstructionDesc& idesc = cmov_instructions[condition]; | 1259 const InstructionDesc& idesc = cmov_instructions[condition]; |
| 1260 byte_size_operand_ = idesc.byte_size_operation; | 1260 byte_size_operand_ = idesc.byte_size_operation; |
| 1261 current += PrintOperands(idesc.mnem, idesc.op_order_, current); | 1261 current += PrintOperands(idesc.mnem, idesc.op_order_, current); |
| 1262 | 1262 |
| 1263 } else if (opcode == 0x54) { |
| 1264 // xorps xmm, xmm/m128 |
| 1265 int mod, regop, rm; |
| 1266 get_modrm(*current, &mod, ®op, &rm); |
| 1267 AppendToBuffer("andps %s,", NameOfXMMRegister(regop)); |
| 1268 current += PrintRightXMMOperand(current); |
| 1269 |
| 1263 } else if (opcode == 0x57) { | 1270 } else if (opcode == 0x57) { |
| 1264 // xorps xmm, xmm/m128 | 1271 // xorps xmm, xmm/m128 |
| 1265 int mod, regop, rm; | 1272 int mod, regop, rm; |
| 1266 get_modrm(*current, &mod, ®op, &rm); | 1273 get_modrm(*current, &mod, ®op, &rm); |
| 1267 AppendToBuffer("xorps %s,", NameOfXMMRegister(regop)); | 1274 AppendToBuffer("xorps %s,", NameOfXMMRegister(regop)); |
| 1268 current += PrintRightXMMOperand(current); | 1275 current += PrintRightXMMOperand(current); |
| 1269 | 1276 |
| 1270 } else if (opcode == 0x50) { | 1277 } else if (opcode == 0x50) { |
| 1271 // movmskps reg, xmm | 1278 // movmskps reg, xmm |
| 1272 int mod, regop, rm; | 1279 int mod, regop, rm; |
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| 1885 for (int i = 6 - static_cast<int>(pc - prev_pc); i >= 0; i--) { | 1892 for (int i = 6 - static_cast<int>(pc - prev_pc); i >= 0; i--) { |
| 1886 fprintf(f, " "); | 1893 fprintf(f, " "); |
| 1887 } | 1894 } |
| 1888 fprintf(f, " %s\n", buffer.start()); | 1895 fprintf(f, " %s\n", buffer.start()); |
| 1889 } | 1896 } |
| 1890 } | 1897 } |
| 1891 | 1898 |
| 1892 } // namespace disasm | 1899 } // namespace disasm |
| 1893 | 1900 |
| 1894 #endif // V8_TARGET_ARCH_X64 | 1901 #endif // V8_TARGET_ARCH_X64 |
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