public override Tlcs900Instruction Decode(byte b, Tlcs900Disassembler dasm)
{
if (!dasm.rdr.TryReadByte(out b))
{
return(null);
}
dasm.opSize = width[0];
dasm.opSrc = dasm.ExtraRegister(b, width);
if (dasm.opSrc == null)
{
return(null);
}
if (!dasm.rdr.TryReadByte(out b))
{
return(null);
}
return(regOpRecs[b].Decode(b, dasm));
}
public override Tlcs900Instruction Decode(uint bPrev, Tlcs900Disassembler dasm)
{
if (!dasm.rdr.TryReadByte(out byte b))
{
return(null);
}
dasm.opSize = width;
var op = dasm.ExtraRegister(b);
if (op == null)
{
return(dasm.CreateInvalidInstruction());
}
if (!dasm.rdr.TryReadByte(out b))
{
return(dasm.CreateInvalidInstruction());
}
dasm.ops.Add(op);
return(regDecoders[b].Decode(b, dasm));
}