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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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1651 | 1651 |
1652 bool Decoder::IsConstantPoolAt(byte* instr_ptr) { | 1652 bool Decoder::IsConstantPoolAt(byte* instr_ptr) { |
1653 int instruction_bits = *(reinterpret_cast<int*>(instr_ptr)); | 1653 int instruction_bits = *(reinterpret_cast<int*>(instr_ptr)); |
1654 return (instruction_bits & kConstantPoolMarkerMask) == kConstantPoolMarker; | 1654 return (instruction_bits & kConstantPoolMarkerMask) == kConstantPoolMarker; |
1655 } | 1655 } |
1656 | 1656 |
1657 | 1657 |
1658 int Decoder::ConstantPoolSizeAt(byte* instr_ptr) { | 1658 int Decoder::ConstantPoolSizeAt(byte* instr_ptr) { |
1659 if (IsConstantPoolAt(instr_ptr)) { | 1659 if (IsConstantPoolAt(instr_ptr)) { |
1660 int instruction_bits = *(reinterpret_cast<int*>(instr_ptr)); | 1660 int instruction_bits = *(reinterpret_cast<int*>(instr_ptr)); |
1661 return DecodeConstantPoolLength(instruction_bits); | 1661 return DecodeConstantPoolLength(instruction_bits) / Assembler::kInstrSize; |
1662 } else { | 1662 } else { |
1663 return -1; | 1663 return -1; |
1664 } | 1664 } |
1665 } | 1665 } |
1666 | 1666 |
1667 | 1667 |
1668 // Disassemble the instruction at *instr_ptr into the output buffer. | 1668 // Disassemble the instruction at *instr_ptr into the output buffer. |
1669 int Decoder::InstructionDecode(byte* instr_ptr) { | 1669 int Decoder::InstructionDecode(byte* instr_ptr) { |
1670 Instruction* instr = Instruction::At(instr_ptr); | 1670 Instruction* instr = Instruction::At(instr_ptr); |
1671 // Print raw instruction bytes. | 1671 // Print raw instruction bytes. |
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1798 v8::internal::PrintF( | 1798 v8::internal::PrintF( |
1799 f, "%p %08x %s\n", | 1799 f, "%p %08x %s\n", |
1800 prev_pc, *reinterpret_cast<int32_t*>(prev_pc), buffer.start()); | 1800 prev_pc, *reinterpret_cast<int32_t*>(prev_pc), buffer.start()); |
1801 } | 1801 } |
1802 } | 1802 } |
1803 | 1803 |
1804 | 1804 |
1805 } // namespace disasm | 1805 } // namespace disasm |
1806 | 1806 |
1807 #endif // V8_TARGET_ARCH_ARM | 1807 #endif // V8_TARGET_ARCH_ARM |
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