Hi Nicolas, Nice to see that you're still here! Den lör 6 mars 2021 11:49Nicolas Welte <no_spam_at_x1541.de> skrev: > This means, the Flash is visible in the $A000-$FFFF area only, and the > part from $8000-$9FFF is always hidden from the 6502 CPU. > > The Flash is mapped 32kB at a time into the upper 32kB of the VIC-20, but > with only the area visible as described above. So you lose 8kB of the 32kB > per selected bank. > So if I configure the VIC adapter for four different kernals I should be able to flash three and just never switch in the empty lowest 8k. That would work for me; I only really need two different kernals, at most three. > For this reason I never used the VIC-20 or the PET to flash generic > images. I used the 1541 instead, because it has all 32kB visible and I also > added a connection for "auto-switching" the banks, so I could flash an > 128kB file in one part. Also this was very fast, because flashing was done > completely inside the 1541 without transferring data via the slow serial > bus to the computer first. > Yes, that would of course expand my options, but the VIC version will do for now :) /NiklasReceived on 2021-03-06 15:00:02
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