Re: Pet Cartridges

From: Craig Taylor <ctalkobt_at_gmail.com>
Date: Thu, 16 Apr 2026 12:00:04 -0400
Message-ID: <CAE6OHdV5wt+y-jOooephzeVeRfqEUYMuVJgV908exFjyAVmeLA_at_mail.gmail.com>
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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