Sinclair ZX80 / ZX81 / Z88 Forums

Thank you! I have updated my code now and it works like I wanted it to. start: ld ix,isr ; make rom call my code instead ret ; back to basic ; ------------------------------------------------------------ isr: ld a,r ld bc,$1901 ld a,$f5 call $02b5 call $0292 call $0220 ; do whatever you need to here...

Hi all, I know this comes up from time to time and I've looked through the forum for clues and one post had something promising but I'm stuck. I'm starting to learn machine code and I'm pretty good now but I want to be able to do something like the 'nova' prgram does and that's put some thing on the...

Just guessing but maybe you should peg reset at 5v?