diff options
Diffstat (limited to 'src/protected_mode')
| -rw-r--r-- | src/protected_mode/mod.rs | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/src/protected_mode/mod.rs b/src/protected_mode/mod.rs index a06af4c..8381d68 100644 --- a/src/protected_mode/mod.rs +++ b/src/protected_mode/mod.rs @@ -7235,6 +7235,7 @@ fn read_operands<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpe }; instruction.regs[0] = RegSpec::from_parts(reg, bank); + instruction.mem_size = 4; instruction.operand_count = 1; } 1 => { @@ -7328,6 +7329,9 @@ fn read_operands<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpe if immsz == 0 { instruction.operands[0] = OperandSpec::ImmI8; } else { + if instruction.opcode == Opcode::CALL { + instruction.mem_size = 4; + } instruction.operands[0] = OperandSpec::ImmI32; } instruction.operand_count = 1; @@ -7505,12 +7509,21 @@ fn read_operands<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpe if instruction.operands[0] == OperandSpec::RegMMM { if opcode == Opcode::CALL || opcode == Opcode::JMP { instruction.regs[1].bank = RegisterBank::D; + if opcode == Opcode::CALL { + instruction.mem_size = 4; + } } else if opcode == Opcode::CALLF || opcode == Opcode::JMPF { return Err(DecodeError::InvalidOperand); } } else { - if opcode == Opcode::CALL || opcode == Opcode::JMP || opcode == Opcode::PUSH || opcode == Opcode::POP { + if opcode == Opcode::CALL || opcode == Opcode::JMP { instruction.mem_size = 4; + } else if opcode == Opcode::PUSH || opcode == Opcode::POP { + if instruction.prefixes.operand_size() { + instruction.mem_size = 2; + } else { + instruction.mem_size = 4; + } } else if opcode == Opcode::CALLF || opcode == Opcode::JMPF { instruction.mem_size = 6; } @@ -7653,6 +7666,14 @@ fn read_operands<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as yaxpe instruction.operand_count = 1; } 28 => { + if instruction.opcode == Opcode::Invalid { + return Err(DecodeError::InvalidOpcode); + } + if instruction.opcode == Opcode::RETURN { + instruction.mem_size = 4; + } else { + instruction.mem_size = 6; + } instruction.operands[0] = OperandSpec::Nothing; instruction.operand_count = 0; return Ok(()); @@ -9132,6 +9153,11 @@ fn unlikely_operands<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch as y instruction.imm = read_imm_unsigned(words, 2)?; instruction.operands[0] = OperandSpec::ImmU16; + if instruction.opcode == Opcode::RETURN { + instruction.mem_size = 4; + } else { + instruction.mem_size = 6; + } instruction.operand_count = 1; } OperandCode::ModRM_0x0f00 => { |