Hallo Pasi, > The color memory starting address depends on the video matrix starting > address. If the video matrix is in the "upper 512 bytes of kB", the > color memory will be also. The whole range 9400-97ff contains 4-bit-wide > memory. Also, it is possible to have the video matrix 1024 bytes and use > the whole color memory. But still my question stands: how can the VIC-20 "move" the colour-RAM to $9800 if tits range is in $9400-97FF? It must be a typing error> > Yes, the VIA address decoding is a bit weird. You can write to both > VIA's simultaneously by writing to $913x.. But why 9 ONE 1 X and why not 9 ZERO 1 x? Has this to do with possible VIC-I mirrors? Groetjes, Ruud http://home.hccnet.nl/g.baltissen/index.htm - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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