Beiträge von fachat im Thema „Relabeled 6502 ohne illegale Opcodes?“

    But what might it be? Both the PET and the 1541 seemed to work RELATIVELY well with this chip in. PET produced snow on screen changes, and 1541 crashed when running demos. But directory listing and loading of files worked fine.

    Which type of PET? The very first model had this snow problem, but only hidden in software.

    Does the snow go away, or do the screen changes persist?