Hello! Jim Brain wrote: >> Or do you mean attaching additional RAM in the unused address space, for >> example $1000-$2FFF (for which you must do your own address decoding)? >> Then I don't know exactly whot would happen, but my gut tells me that in >> the real Ultimax VIC would see this RAM, but in the C64 it might or >> might not (my bet is on "not"). > This is the case I am wondering about. OK. I don't have a C64 laying around, but the easiest thing to do would be to plug MAX BASIC Ultimax cartridge, program the VIC from the BASIC to access this memory area, and use the logic analyzer to see what;'s on the bus. In the real Ultimax I am 99% sure the VIC will see it, but on the C64 it's not so certain. Regards, Michau.Received on 2018-05-03 12:00:03
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