On Mon, Jan 11, 2016 at 2:56 PM, Marko MÃ¤kelÃ¤ <email@example.com> wrote: > So far, nobody seemed to answer my question about Vic-20 cartridges that use > I/O2 or I/O3. I built a one-off on a protoboard - a Motorola 6821 to give me 2 more 8-bit ports, wired into a DEC single-slot backplane socket to make a board tester. Do any of the VIC-20 IEEE cartridges use I/O2 or I/O3? > I know only one such cartridge: the tape fastloader Vic Rabbit > maps 4KiB of ROM there. I had the PET Rabbit (just a 2532 in an empty ROM socket), but not the VIC Rabbit. Interesting to hear it had a non-standard ROM select. -ethan Message was sent through the cbm-hackers mailing listReceived on 2016-01-11 21:00:51
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