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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <assert.h> | 5 #include <assert.h> |
6 #include <stdarg.h> | 6 #include <stdarg.h> |
7 #include <stdio.h> | 7 #include <stdio.h> |
8 | 8 |
9 #if V8_TARGET_ARCH_X87 | 9 #if V8_TARGET_ARCH_X87 |
10 | 10 |
11 #include "src/base/compiler-specific.h" | |
12 #include "src/disasm.h" | 11 #include "src/disasm.h" |
13 | 12 |
14 namespace disasm { | 13 namespace disasm { |
15 | 14 |
16 enum OperandOrder { | 15 enum OperandOrder { |
17 UNSET_OP_ORDER = 0, | 16 UNSET_OP_ORDER = 0, |
18 REG_OPER_OP_ORDER, | 17 REG_OPER_OP_ORDER, |
19 OPER_REG_OP_ORDER | 18 OPER_REG_OP_ORDER |
20 }; | 19 }; |
21 | 20 |
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319 int F7Instruction(byte* data); | 318 int F7Instruction(byte* data); |
320 int D1D3C1Instruction(byte* data); | 319 int D1D3C1Instruction(byte* data); |
321 int JumpShort(byte* data); | 320 int JumpShort(byte* data); |
322 int JumpConditional(byte* data, const char* comment); | 321 int JumpConditional(byte* data, const char* comment); |
323 int JumpConditionalShort(byte* data, const char* comment); | 322 int JumpConditionalShort(byte* data, const char* comment); |
324 int SetCC(byte* data); | 323 int SetCC(byte* data); |
325 int CMov(byte* data); | 324 int CMov(byte* data); |
326 int FPUInstruction(byte* data); | 325 int FPUInstruction(byte* data); |
327 int MemoryFPUInstruction(int escape_opcode, int regop, byte* modrm_start); | 326 int MemoryFPUInstruction(int escape_opcode, int regop, byte* modrm_start); |
328 int RegisterFPUInstruction(int escape_opcode, byte modrm_byte); | 327 int RegisterFPUInstruction(int escape_opcode, byte modrm_byte); |
329 PRINTF_FORMAT(2, 3) void AppendToBuffer(const char* format, ...); | 328 void AppendToBuffer(const char* format, ...); |
| 329 |
330 | 330 |
331 void UnimplementedInstruction() { | 331 void UnimplementedInstruction() { |
332 if (abort_on_unimplemented_) { | 332 if (abort_on_unimplemented_) { |
333 UNIMPLEMENTED(); | 333 UNIMPLEMENTED(); |
334 } else { | 334 } else { |
335 AppendToBuffer("'Unimplemented Instruction'"); | 335 AppendToBuffer("'Unimplemented Instruction'"); |
336 } | 336 } |
337 } | 337 } |
338 }; | 338 }; |
339 | 339 |
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941 data++; | 941 data++; |
942 } else if (*data == 0x2E /*cs*/) { | 942 } else if (*data == 0x2E /*cs*/) { |
943 branch_hint = "predicted not taken"; | 943 branch_hint = "predicted not taken"; |
944 data++; | 944 data++; |
945 } | 945 } |
946 bool processed = true; // Will be set to false if the current instruction | 946 bool processed = true; // Will be set to false if the current instruction |
947 // is not in 'instructions' table. | 947 // is not in 'instructions' table. |
948 const InstructionDesc& idesc = instruction_table_->Get(*data); | 948 const InstructionDesc& idesc = instruction_table_->Get(*data); |
949 switch (idesc.type) { | 949 switch (idesc.type) { |
950 case ZERO_OPERANDS_INSTR: | 950 case ZERO_OPERANDS_INSTR: |
951 AppendToBuffer("%s", idesc.mnem); | 951 AppendToBuffer(idesc.mnem); |
952 data++; | 952 data++; |
953 break; | 953 break; |
954 | 954 |
955 case TWO_OPERANDS_INSTR: | 955 case TWO_OPERANDS_INSTR: |
956 data++; | 956 data++; |
957 data += PrintOperands(idesc.mnem, idesc.op_order_, data); | 957 data += PrintOperands(idesc.mnem, idesc.op_order_, data); |
958 break; | 958 break; |
959 | 959 |
960 case JUMP_CONDITIONAL_SHORT_INSTR: | 960 case JUMP_CONDITIONAL_SHORT_INSTR: |
961 data += JumpConditionalShort(data, branch_hint); | 961 data += JumpConditionalShort(data, branch_hint); |
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1817 fprintf(f, " "); | 1817 fprintf(f, " "); |
1818 } | 1818 } |
1819 fprintf(f, " %s\n", buffer.start()); | 1819 fprintf(f, " %s\n", buffer.start()); |
1820 } | 1820 } |
1821 } | 1821 } |
1822 | 1822 |
1823 | 1823 |
1824 } // namespace disasm | 1824 } // namespace disasm |
1825 | 1825 |
1826 #endif // V8_TARGET_ARCH_X87 | 1826 #endif // V8_TARGET_ARCH_X87 |
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