On 01/13/2012 06:40 PM, Segher Boessenkool wrote: >>>> Although the timing stayed the same between 6569R1 and 6569R3, the >>>> number of luminance levels changed and the timing of video accesses >>>> changed also. Christian Bauer's document has the details. >>> >>> I don't see it? Do you perhaps misremember, or are you looking >>> at a modified version of his doc? >> >> I misremembered. I think it was Marko Makela who mentioned it, some >> years ago. The sequence of sprite accesses was different between >> 6569R1 and 6569R3. With the borders open and sprites in the borders, >> you could see the difference in at least one of the sprites. > > Any chance you can dig up some details? :-) I'd be interested too... I did play 'Edge of Disgrace' on a 6569R1. That demo has a lot of open border stuff and I didn't notice any obvious difference between the 6569R1 and later revisions. It can be detected by software though, so maybe the better coders adjusted their code to it? Gerrit Message was sent through the cbm-hackers mailing listReceived on 2012-01-13 18:00:37
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