I learned some 6502 last year in service of NES ROM Hacking. If you're interested in doing the same, NesHacker's Final Fantasy guide was instrumental in getting

I learned some 6502 last year in service of NES ROM Hacking. If you're interested in doing the same, NesHacker's Final Fantasy guide was instrumental in getting me started: https://www.youtube.com/watch?v=HLzEhyvHBos https://www.youtube.com/watch?v=HLzEhyvHBos