Thank you for the link. It makes sense that I had trouble finding cartridges, as it seems they required replacing the ROMs on the PETs. I think the Basic Expander or arrow might be good test candidates, and it would be great to get the tape fast loader bin working with my implementation. Regarding the PET / CBM question, the emulator currently supports the PET-2001, 4032, 8032, C64, and VIC-20. I am working toward the C128 and Mega65, and then plan to move on to other computers like the Atari. The CBM-II looks like an interesting next step; the 6509 seems similar to a 6502, but with $00/$01 repurposed for banking control. I’ll dig into that more when the time comes. When I first started on the Atari, I ran into some issues due to a lack of familiarity with the memory maps, but at least the devices for the B128 should be compatible with what I have already built. On Thu, Apr 16, 2026 at 9:48 AM <ruud_at_baltissen.org> wrote: > Stefan Haubenthal schreef op 2026-04-16 15:01: > > Hi! > > You can find cartridges, simply called ROMs because there's no > > cartridge slot, at > > > https://www.zimmers.net/anonftp/pub/cbm/firmware/computers/pet/other/index.html > > First remark: What is PET and what is CBM? > > Second remark: The CBM-II series do have a cartridge slot. I have > CalcResult and "Golden Line" (no idea what it is)> > > > -- > > Kind regards / Met vriendelijke groet, Ruud Baltissen > > www.Baltissen.org > > >Received on 2026-04-16 18:00:02
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