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So how does one switch between the two banks of ROM, and to where is the second bank mapped? They used $C028, one of the 'reserved' $C02x region (*1). With the IIc ROM "1" it became "Toggle between main and auxiliary ROM". Access per STA flips between both ROM 'halves'. The 32 KiB Apple IIc ROM contains two images, each covering the Area $C100..$FFFF. The ...


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