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Re: DMA/YM Chip Question
Posted by: Bod/STAX Oct,03.2011-00:19 


Just incase anyone's interested this is how I'm doing
a screen update of 2 vbl's:

loop: tst.w vbl_count
bpl .s1
move.w #2-1,vbl_count

bsr vsync

; other routs here

.s1 ; repeat loop

vbl subq.w #1,vbl_count
rte

vbl_count dc.w 0




[All messages in this thread]

Topic Posted by  Date 
DMA/YM Chip Question Bod/STAX Sep,30.2011-14:31
  Re: DMA/YM Chip Question evil Sep,30.2011-17:31
    Re: DMA/YM Chip Question Defjam Oct,01.2011-18:55
      Re: DMA/YM Chip Question Bod/STAX Oct,02.2011-22:08
        Re: DMA/YM Chip Question Bod/STAX Oct,03.2011-00:10
          Re: DMA/YM Chip Question Bod/STAX Oct,03.2011-00:19
            Re: DMA/YM Chip Question evil Oct,03.2011-21:22
              Re: DMA/YM Chip Question Bod/STAX Oct,07.2011-15:54
                Re: DMA/YM Chip Question evil Oct,07.2011-17:15
                  Re: DMA/YM Chip Question Bod/STAX Oct,07.2011-17:44


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