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Atari coding BBS
 
Re: STE stable fullscreen
Posted by: Bod/Effect Sep,29.2015-16:53 

Sorry if this has been posted before or if you are aware of it but the "jump" when using hardscroller is when you go from >0 back to 0 and is known by Atari.

This is a fix by Techwave/ICE

move.w scroll(pc),d1
add.w #16+16,d1

move.w d1,d2
and.b #$0f,d1
move.b d1,$ffff8265.w
bne.s fix_line
move.b #80+8+4,$ffff820f.w ; x-words
bra.s scrn_poi
fix_line: move.b #80-4+8+4,$ffff820f.w
scrn_poi:
lsr.w #4,d2
lsl.w #3,d2
move.l #screen,d0
add.l d2,d0

move.b d0,$ffff8209.w
lsr.w #8,d0
move.b d0,$ffff8207.w
swap d0
move.b d0,$ffff8205.w




[All messages in this thread]

Topic Posted by  Date 
STE stable fullscreen Leonard Aug,26.2015-16:10
  Re: STE stable fullscreen Patrice Mandin Aug,27.2015-16:45
    Re: STE stable fullscreen evil Aug,27.2015-18:07
      Re: STE stable fullscreen Leonard Aug,27.2015-18:19
        Re: STE stable fullscreen evil Aug,27.2015-18:38
          Re: STE stable fullscreen Leonard Aug,28.2015-09:26
            Re: STE stable fullscreen evil Aug,28.2015-10:27
              Re: STE stable fullscreen Patrice Mandin Aug,28.2015-18:43
                Re: STE stable fullscreen Leonard Aug,28.2015-20:55
                  Re: STE stable fullscreen Patrice Mandin Aug,29.2015-10:17
                    Re: STE stable fullscreen Leonard Aug,29.2015-10:23
                      Re: STE stable fullscreen Patrice Mandin Aug,29.2015-15:42
                        Re: STE stable fullscreen Bod/Effect Sep,29.2015-16:53
  Re: STE stable fullscreen Troed Sep,02.2015-11:41
    Re: STE stable fullscreen Troed Sep,02.2015-12:08


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