diff options
Diffstat (limited to 'src/long_mode/mod.rs')
| -rw-r--r-- | src/long_mode/mod.rs | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/long_mode/mod.rs b/src/long_mode/mod.rs index 61ae89f..b620092 100644 --- a/src/long_mode/mod.rs +++ b/src/long_mode/mod.rs @@ -3524,7 +3524,13 @@ pub enum OperandCode { x87_de = OperandCodeBuilder::new().special_case(37).bits(), x87_df = OperandCodeBuilder::new().special_case(38).bits(), - Eb_R0 = OperandCodeBuilder::new().special_case(39).bits(), + Eb_R0 = OperandCodeBuilder::new() + .read_modrm() + .set_embedded_instructions() + .read_E() + .byte_operands() + .operand_case(20) + .bits(), AL_Ib = OperandCodeBuilder::new().special_case(40).bits(), AX_Ib = OperandCodeBuilder::new().special_case(41).bits(), Ib_AL = OperandCodeBuilder::new().special_case(42).bits(), @@ -5770,10 +5776,11 @@ fn read_operands<T: Iterator<Item=u8>>(decoder: &InstDecoder, mut bytes_iter: T, let operand_code: OperandCode = unsafe { core::mem::transmute(operand_code.bits()) }; match operand_code { OperandCode::Eb_R0 => { - if (modrm & 0b00111000) != 0 { - instruction.opcode = Opcode::Invalid; - return Err(DecodeError::InvalidOperand); // Err("Invalid modr/m for opcode 0xc6".to_owned()); - } + // turns out xed cand capstone both permit nonzero rrr bits here. + // if (modrm & 0b00111000) != 0 { + // instruction.opcode = Opcode::Invalid; + // return Err(DecodeError::InvalidOperand); + //} instruction.operands[0] = mem_oper; instruction.operand_count = 1; |