On Dec 22, 1:46 pm, jonnosan <jonno...@gmail.com> wrote: > I took a copy of the 2732 EPROM on the card, and it looks like > > F974: A9 A0 LDA #$A0 > F976: 91 02 C8 STA ($C802),Y > F979: D0 FB BNE $F976 won't it get stuck in a loop above?