On Fri, 17 Nov 2000, COPLIN, Nicholas. wrote: > Interesting, I always assumed telling the VIC to "blank" automatically > disabled all extra accesses.... No, it only disables the character code/colour fetches. And if I remember correctly, the VIC-II monitors the $d011 screen blank bit twice per frame: once for determining whether the screen should be blanked, and another time for deciding whether to draw characters on the screen. It should be possible to disable the screen and still get bad lines (not very useful, isn't it?), and to disable the bad lines and get a screen with $d021 background color and black $3fff-shaped "characters" (i.e. similar to what you get when opening the top/bottom borders). This mode saves time if you only need to display some information (in sprites). Marko - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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