/// <summary>
/// Matches an "ADC" or "SBB/SBC" pattern.
/// </summary>
/// <param name="instr"></param>
/// <returns>If the match succeeded, returns a partial BinaryExpression
/// with the left and right side of the ADC/SBC instruction.</returns>
public AddSubCandidate MatchAdcSbc(Statement stm)
{
if (!adcPattern.Match(stm.Instruction))
{
return(null);
}
if (!IsCarryFlag(adcPattern.CapturedExpressions("cf")))
{
return(null);
}
var op = adcPattern.CapturedOperators("op2");
if (!IsIAddOrISub(op))
{
return(null);
}
return(new AddSubCandidate
{
Dst = adcPattern.CapturedExpressions("dst"),
Op = op,
Left = adcPattern.CapturedExpressions("left"),
Right = adcPattern.CapturedExpressions("right"),
Statement = stm
});
}
public AddSubCandidate? MatchAddSub(Statement stm)
{
if (!addPattern.Match(stm.Instruction))
return null;
var op = addPattern.CapturedOperators("op")!;
if (!IsIAddOrISub(op))
return null;
return new AddSubCandidate(
op,
addPattern.CapturedExpressions("left")!,
addPattern.CapturedExpressions("right")!)
{
Dst = addPattern.CapturedExpressions("dst")!,
};
}
/// <summary>
/// Matches an "ADC" or "SBB/SBC" pattern.
/// </summary>
/// <param name="instr"></param>
/// <returns>If the match succeeded, returns a partial BinaryExpression
/// with the left and right side of the ADC/SBC instruction.</returns>
public AddSubCandidate? MatchAdcSbc(Statement stm)
{
if (!adcPattern.Match(stm.Instruction))
return null;
if (!IsCarryFlag(adcPattern.CapturedExpressions("cf")!))
return null;
var op = adcPattern.CapturedOperators("op2")!;
if (!IsIAddOrISub(op))
return null;
return new AddSubCandidate(
op,
adcPattern.CapturedExpressions("left")!,
adcPattern.CapturedExpressions("right")!)
{
Dst = adcPattern.CapturedExpressions("dst")!,
Statement = stm
};
}
public AddSubCandidate MatchAddSub(Instruction instr)
{
if (!addPattern.Match(instr))
{
return(null);
}
var op = addPattern.CapturedOperators("op");
if (!IsIAddOrISub(op))
{
return(null);
}
return(new AddSubCandidate
{
Dst = addPattern.CapturedExpressions("dst"),
Op = op,
Left = addPattern.CapturedExpressions("left"),
Right = addPattern.CapturedExpressions("right")
});
}
