diff options
Diffstat (limited to 'disassembler/disassembler_x86.cc')
| -rw-r--r-- | disassembler/disassembler_x86.cc | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/disassembler/disassembler_x86.cc b/disassembler/disassembler_x86.cc index 1d29765d4e..195c45f79d 100644 --- a/disassembler/disassembler_x86.cc +++ b/disassembler/disassembler_x86.cc @@ -58,10 +58,10 @@ static const char* gReg64Names[] = { }; // 64-bit opcode REX modifier. -constexpr uint8_t REX_W = 0b1000; -constexpr uint8_t REX_R = 0b0100; -constexpr uint8_t REX_X = 0b0010; -constexpr uint8_t REX_B = 0b0001; +constexpr uint8_t REX_W = 8U /* 0b1000 */; +constexpr uint8_t REX_R = 4U /* 0b0100 */; +constexpr uint8_t REX_X = 2U /* 0b0010 */; +constexpr uint8_t REX_B = 1U /* 0b0001 */; static void DumpReg0(std::ostream& os, uint8_t rex, size_t reg, bool byte_operand, uint8_t size_override) { @@ -767,7 +767,7 @@ DISASSEMBLER_ENTRY(cmp, case 0xB1: opcode << "cmpxchg"; has_modrm = true; store = true; break; case 0xB6: opcode << "movzxb"; has_modrm = true; load = true; byte_second_operand = true; break; case 0xB7: opcode << "movzxw"; has_modrm = true; load = true; break; - case 0xBE: opcode << "movsxb"; has_modrm = true; load = true; byte_second_operand = true; rex |= (rex == 0 ? 0 : 0b1000); break; + case 0xBE: opcode << "movsxb"; has_modrm = true; load = true; byte_second_operand = true; rex |= (rex == 0 ? 0 : REX_W); break; case 0xBF: opcode << "movsxw"; has_modrm = true; load = true; break; case 0xC3: opcode << "movnti"; store = true; has_modrm = true; break; case 0xC5: |