protected static Byte GetLinearOffset(LocationInfo src, Byte start)
{
Byte offset = start;
if (src.loc >= Locations.B && src.loc <= Locations.L)
{
offset += (Byte)src.loc;
}
else if (src.loc == Locations.HL && src.isMem)
{
offset += 0x06;
}
else if (src.loc == Locations.A)
{
offset += 0x07;
}
return offset;
}
protected static Byte GetBlockOffset(LocationInfo src, Byte start)
{
Byte offset = start;
switch (src.loc)
{
case Locations.BC:
offset += 0x00;
break;
case Locations.DE:
offset += 0x10;
break;
case Locations.HL:
offset += 0x20;
break;
case Locations.AF:
offset += 0x30;
break;
default:
//ERROR
break;
}
return offset;
}
protected static void InsertLocationInfo(List<Byte> rom, LocationInfo src)
{
if (src.isWide)
{
rom.Add((Byte)(src.val >> 8));
rom.Add((Byte)(src.val & 0xFF));
}
else
{
rom.Add((Byte)src.val);
}
}
public Instruction()
{
op = Instructions.ERR_INSTRUCTION;
src = new LocationInfo();
dst = new LocationInfo();
}
protected static Byte GetTableOffset(LocationInfo src, LocationInfo dst, Byte start)
{
Byte offset = offset = GetLinearOffset(dst, (Byte)(start));
if (src.val % 2 != 0)
{
offset += 0x08;
}
offset += (Byte)((src.val / 2) * 0x10);
return offset;
}
