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Re: Falcon: Double buffering using
Posted by: tat May,20.2020-18:02 

I was looking at something similar the other day, since Faker Bashing judders on Falcon. It sets $ff8201/3 after a long VBL interrupt that does the scroller, but it can take a variable amount of time (and be blocked by music updates on Timer C).

I might be totally wrong, but I came to the conclusion that the Falcon reads $ff8201 etc near to when the visible screen starts again, not near the VBL like on the ST.

So my bodge on Falcon was to poll $ff8209 until it changed, then update the base registers.

Steve









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Topic Posted by  Date 
Falcon: Double buffering using joska May,20.2020-13:09
  Re: Falcon: Double buffering using joska May,20.2020-13:09
  Re: Falcon: Double buffering using evil May,20.2020-14:25
    Re: Falcon: Double buffering using joska May,20.2020-14:47
      Re: Falcon: Double buffering using evil May,20.2020-15:50
        Re: Falcon: Double buffering using tat May,20.2020-18:02
          Re: Falcon: Double buffering using evil May,21.2020-13:15
    Re: Falcon: Double buffering using joska May,24.2020-16:34
      Re: Falcon: Double buffering using mikro May,25.2020-08:33
        Re: Falcon: Double buffering using joska May,26.2020-10:30
        Re: Falcon: Double buffering using joska May,26.2020-21:28


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