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Atari coding BBS
| Re: Scroll text techniques |
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Posted by: Bod/STAX
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Oct,27.2007-19:18
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You can also use movep.l by converting your font so that it's 4 8x32 strips in 4 planes (if it's a 32x32 4 plane font), read an adress of a strip and construct it across the screen. I.E.
lea scroll_tab,a0
move.l phys,a2
move.l (a0)+,a1
x set 0
rept 4
movem.l (a1)+,d0-d7
movep.l d0,x(a2)
movep.l d1,x+160(a2)
movep.l d2,x+160*1(a2)
movep.l d3,x+160*2(a2)
movep.l d4,x+160*3(a2)
movep.l d5,x+160*4(a2)
movep.l d6,x+160*5(a2)
movep.l d7,x+160*7(a2)
x set x+160*8
endr
addq.w #1,a2
move.l (a0)+,a1
x set 0
rept 4
movem.l (a1)+,d0-d7
movep.l d0,x(a2)
movep.l d1,x+160(a2)
movep.l d2,x+160*1(a2)
movep.l d3,x+160*2(a2)
movep.l d4,x+160*3(a2)
movep.l d5,x+160*4(a2)
movep.l d6,x+160*5(a2)
movep.l d7,x+160*7(a2)
x set x+160*8
endr
addq.w #7,a2
It should also eaily be possible to impliment directional changing scrolling with this method (I.E. use arrow keys to change scrolltext direction).
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[All messages in this thread] [Start new thread]
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Topic
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Posted by
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Date
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Scroll text techniques
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Vincent Riviere
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Oct,24.2007-20:03
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Re: Scroll text techniques
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earx
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Oct,24.2007-20:09
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Re: Scroll text techniques
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earx
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Oct,24.2007-20:27
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Re: Scroll text techniques
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earx
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Oct,24.2007-20:31
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Re: Scroll text techniques
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earx
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Oct,24.2007-20:32
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Re: Scroll text techniques
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Vincent Riviere
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Oct,24.2007-22:33
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Re: Scroll text techniques
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earx
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Oct,25.2007-09:49
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Re: Scroll text techniques
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ggn
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Oct,25.2007-11:23
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Re: Scroll text techniques
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Bod/STAX
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Oct,25.2007-17:55
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Re: Scroll text techniques
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evil
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Oct,27.2007-17:50
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Re: Scroll text techniques
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earx
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Oct,27.2007-19:01
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Re: Scroll text techniques
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Bod/STAX
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Oct,27.2007-19:18
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Re: Scroll text techniques
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gloky
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Nov,25.2007-13:22
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Re: Scroll text techniques
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Bod/STAX
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Nov,25.2007-21:26
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Re: Scroll text techniques
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gloky
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Dec,10.2007-22:15
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Re: Scroll text techniques
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gloky
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Jan,04.2008-15:10
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What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
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