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From: rogers@iris.ucdavis.edu (Brewski Rogers)
Newsgroups: rec.games.programmer,comp.sys.amiga.tech
Subject: Re: Animation Speed & Redraw
Message-ID: <7890@aggie.ucdavis.edu>
Date: 6 Sep 90 22:05:22 GMT
References: <4265@crash.cts.com> <1410@metaphor.Metaphor.COM>
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Reply-To: rogers@iris.ucdavis.edu (Brewski Rogers)
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Organization: U.C. Davis - Department of Electrical Engineering and Computer Science
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>So, let's hear it: you can blitter-zap a 320x200x4 screen
>7,160,000 / (# words in screen * 4 cycles/word) = 111.875 times a second.
>If a blitter-copy is performed instead, you have 59.93 frames/second
>refresh.
Doesn't an A->D blitter copy take 4 cycles?
This lets you have 112 frames/sec refresh and still have a nice
background.
You can still get bit shifting with an A->D copy, you just have to be
a little more careful...


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