I have also written a PETTESTER code that replaces the EDIT ROM. Others have taken my code and incorporated it into a CPU socket plug-in that implements ROM/RAM replacement, NOP generator and various diagnostics. Dave On Thu, 8 Dec 2022, 20:18 , <ruud_at_baltissen.org> wrote: > Hallo Francesco en David, > > > > commodore used to have these IC clips that would go over the $Fxxx ROM > > (or it was the CPU? > > CPU. The testclip can activate its own ROM by sending a signal to one of > the 6502's not used pin that disables the original ROM. > > > > I don't think these ROMs would work on non-CRTC PETs. > > I have testclips for the 8000 and 3000 series. > > > -- > > Kind regards / Met vriendelijke groet, Ruud Baltissen > > www.Baltissen.org > > >Received on 2022-12-08 22:00:23
Archive generated by hypermail 2.3.0.