On 2/9/2021 4:29 PM, smf wrote: > He mentions how to unlock access to the extra vic2 registers, in the > d000 address range. When in 80 column mode the screen, font and color > don't appear to be fetched from the normal areas of ram/rom. That part you have to infer > > I assume to read/write vram you access it through some $d0xx addresses > (similar to how VDC ram on the c128 is accessed through $d60x). But I > didn't see that spelled out. That, though, is spelled out. https://youtu.be/LY0Hu4egKYc?t=371 He has two indirect registers, one at $d039:3a with a data register at $d03b and another at $d03d:3c with a data register at $d03e. $d03f has some flags, which autoincrement/decrement and other things. JimReceived on 2021-02-10 03:00:02
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