At 23:50 2001-12-11, you wrote: >I have heard that IX and IY can use offsets. I have no clue how to use them >yet. Maybe someone could help me out a little bit. Can IX read a byte but not >inside a byte boundary?? And write to it too? No, the offset is counted in bytes. the syntax is (IX+n) that is, for example, if IX contains $4000 and you want to load the byte at $4004 in a, you use: ld a,(IX+4) ///Olle