public override Tlcs900Instruction Decode(byte b, Tlcs900Disassembler dasm)
{
if (!mutator(b, dasm) || !dasm.rdr.TryReadByte(out b))
{
return(dasm.Invalid());
}
return(memOpRecs[b].Decode(b, dasm));
}
public override Tlcs900Instruction Decode(byte b, Tlcs900Disassembler dasm)
{
if (!dasm.rdr.TryReadByte(out b))
{
return(null);
}
dasm.opSize = width;
var op = dasm.ExtraRegister(b);
if (op == null)
{
return(dasm.Invalid());
}
if (!dasm.rdr.TryReadByte(out b))
{
return(dasm.Invalid());
}
dasm.ops.Add(op);
return(regOpRecs[b].Decode(b, dasm));
}
public override Tlcs900Instruction Decode(byte b, Tlcs900Disassembler dasm)
{
foreach (var m in mutators)
{
if (!m(b, dasm))
{
return(dasm.Invalid());
}
}
bool swap = dasm.ops.Count == 2;
return(new Tlcs900Instruction
{
Opcode = this.opcode,
Address = dasm.addr,
op1 = swap ? dasm.ops[1] : dasm.ops[0],
op2 = swap ? dasm.ops[0] : null
});
}
public override Tlcs900Instruction Decode(byte b, Tlcs900Disassembler dasm)
{
if (!mutator(b, dasm) || !dasm.rdr.TryReadByte(out b))
{
return(dasm.Invalid());
}
var instr = dstOpRecs[b].Decode(b, dasm);
if (instr.op1 != null && instr.op2 != null)
{
instr.op1.Width = instr.op2.Width;
}
if (instr.op2 != null && instr.op2.Width == null)
{
//$HACK to get conditional calls/jumps to work
instr.op2.Width = PrimitiveType.Word32;
}
return(instr);
}
public override Tlcs900Instruction Decode(byte b, Tlcs900Disassembler dasm)
{
if (this.mutator == null)
{
return(new Tlcs900Instruction
{
Opcode = this.opcode,
Address = dasm.addr,
op1 = dasm.ops[0]
});
}
if (!mutator(b, dasm))
{
return(dasm.Invalid());
}
return(new Tlcs900Instruction
{
Opcode = this.opcode,
Address = dasm.addr,
op1 = dasm.ops.Count > 1 ? dasm.ops[1] : dasm.ops[0],
op2 = dasm.ops.Count > 1 ? dasm.ops[0] : null,
});
}