Hello! smf wrote: > IO2 doesn't exist at all on the Ultimax, IIRC it's used for a cia shift > register pin. No, it is used as a CIA chip select signal. CIA CNT and LD pins are where the /GAME and DOTCLK signals are on the C64. > IO1 seems to be the same $DE00 select on the Ultimax and C64, you could > put RAM there but it's a bit out of the way. No, IO1 _is_ the external RAM select in the Ultimax. > I'd like to see a Max basic cartridge, but I'm guessing that it used > it's own decoding. It's super trivial to and/or a few lines together. No, see above. Regards, Michau.Received on 2018-05-04 13:00:03
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