public AOpCodeAluImm(AInst Inst, long Position, int OpCode) : base(Inst, Position, OpCode)
{
if (DataOp == ADataOp.Arithmetic)
{
Imm = (OpCode >> 10) & 0xfff;
int Shift = (OpCode >> 22) & 3;
Imm <<= Shift * 12;
}
else if (DataOp == ADataOp.Logical)
{
var BM = ADecoderHelper.DecodeBitMask(OpCode, true);
if (BM.IsUndefined)
{
Emitter = AInstEmit.Und;
return;
}
Imm = BM.WMask;
}
else
{
throw new ArgumentException(nameof(OpCode));
}
}
public AOpCodeBfm(AInst Inst, long Position, int OpCode) : base(Inst, Position, OpCode)
{
var BM = ADecoderHelper.DecodeBitMask(OpCode, false);
if (BM.IsUndefined)
{
Emitter = AInstEmit.Und;
return;
}
WMask = BM.WMask;
TMask = BM.TMask;
Pos = BM.Pos;
Shift = BM.Shift;
}
