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Atari coding BBS
| Re: Blitter Bobs STe |
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Posted by: evil
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Jun,28.2012-00:12
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I wonder, could something like this be used instead?
If it works (untested) it should use up 12 cycles less, and only need one copy of the code.
timerb:
move.w $1c0.w,$ffff8240.w
addq.w #2,-4*.
rte
$1c0 have space for well enough 200 colours.
Unsure if -4 is the right offset there (would need to trial and error a bit).
The code did assemble with vasm for a quick verification, but would need to do a proper Atari test to be sure it would work :)
--
Anders Eriksson
ae@dhs.nu
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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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Blitter Bobs STe
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Pete
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Jun,26.2012-06:51
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Re: Blitter Bobs STe
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ggn
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Jun,26.2012-13:00
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Re: Blitter Bobs STe
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ggn
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Jun,26.2012-13:52
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Re: Blitter Bobs STe
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Pete
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Jun,26.2012-14:02
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Re: Blitter Bobs STe
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Simon Sunnyboy / Paradize
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Jun,26.2012-17:21
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Re: Blitter Bobs STe
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Bod/STAX
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Jun,26.2012-19:57
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Re: Blitter Bobs STe
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Bod/STAX
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Jun,26.2012-19:59
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Re: Blitter Bobs STe
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Pete
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Jun,27.2012-03:25
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Re: Blitter Bobs STe
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RA/pdx
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Jun,27.2012-13:34
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Re: Blitter Bobs STe
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Defjam
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Jun,27.2012-21:24
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Re: Blitter Bobs STe
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evil
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Jun,28.2012-00:12
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Re: Blitter Bobs STe
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RA/pdx
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Jun,28.2012-08:36
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Re: Blitter Bobs STe
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evil
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Jun,28.2012-10:11
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Re: Blitter Bobs STe
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RA/pdx
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Jun,28.2012-10:18
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Re: Blitter Bobs STe
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Pete
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Jun,28.2012-13:25
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Re: Blitter Bobs STe
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ggn
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Jul,05.2012-08:37
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Re: Blitter Bobs STe
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Grazey
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Jul,05.2012-08:45
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Re: Blitter Bobs STe
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gwEm
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Jul,06.2012-11:13
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