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Atari coding BBS
 
Re: Texture U/V misunderstanding
Posted by: Orion_ Jan,26.2015-17:54 

I think I got it :)

swap d5 ; VVvv----
move.b d3,d5 ; VVvv--uu
lsr.l #8,d3 ; ------UU
lsl.w #8,d5 ; VVvvuu--
swap d5 ; uu--VVvv

move.w d5,d0 ; ----VVvv
move.b d3,d0 ; ----VVUU = Texture offset (256x256)
add.l d6,d5 ; ty += mty; uu--VVvv
addx.b d4,d3 ; tx += mtx; ------UU




[All messages in this thread]    [Start new thread]

Topic Posted by  Date 
Texture U/V misunderstanding Orion_ Jan,24.2015-17:41
  Re: Texture U/V misunderstanding ggn Jan,24.2015-21:43
    Re: Texture U/V misunderstanding Orion_ Jan,25.2015-18:07
      Re: Texture U/V misunderstanding ggn Jan,25.2015-20:51
  Re: Texture U/V misunderstanding mikro Jan,26.2015-10:05
    Re: Texture U/V misunderstanding Orion_ Jan,26.2015-15:47
      Re: Texture U/V misunderstanding Orion_ Jan,26.2015-17:54
      Re: Texture U/V misunderstanding mikro Jan,27.2015-11:26


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