Article View: comp.sys.atari.st
Article #33544Atari Blitter Information
From: Steve Whitney
Date: Tue, 09 Aug 1988 20:48
Date: Tue, 09 Aug 1988 20:48
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As far as I know, the information below is incorrect. It was posted in
comp.arch as article 6110. Would someone who soed know please post a
response in comp.sys.atari.st and comp.arch, please?
> ... An example is the (still not released,
~~~~~ ~~~ ~~~~~~~~ I responded to this
> I believe) Atari blitter. It was just a rectangle-copy chip, no special ops,
~~~ note past tense
> nothing else. Compare this to the amiga chips, where the blitter was part of
> the original design. The blitter has 256 operations (3-source,1 dest), can
> also do line-draw and fills, and is only a small part of chip it's on, and
> shares hardware with other special purpose functions of the chips, like
> dma channel addressing and arbitration.
> Randell Jesup, Commodore Engineering {uunet|rutgers|allegra}!cbmvax!jesup
As I understand it, the Atari blitter does do line drawing and area fills.
If this is the case, let's correct the record.
--Steve Whitney
Technical Details
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!sgi!maverick From: maverick@cl2devy.SGI.COM (Steve Whitney) Newsgroups: comp.sys.atari.st Subject: Atari Blitter Information Keywords: blitter Message-ID: <18771@sgi.SGI.COM> Date: 9 Aug 88 20:48:24 GMT Sender: daemon@sgi.SGI.COM Distribution: na Organization: Silicon Graphics Inc, Mountain View, CA Lines: 20