Article View: comp.sys.amiga.tech
Article #3013Re: PolyDraw replacement - waveform plotting
From: Chuck McManis
Date: Tue, 20 Mar 1990 18:10
Date: Tue, 20 Mar 1990 18:10
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In article <25661@swrinde.nde.swri.edu> (Kent D. Polk) writes:
>Any suggestions for getting the speed I need out of this machine?
>Would an assembler line draw routine be faster on the '020 than a
>blitter one? If so about how much and does anyone have source I could
>start with?
A fast line draw routine (such as a DDA) that fits inside the instruction
cache of the '020 and maximizes register uses will give you the best
performance. Even better would be to do the actual drawing in 32bit RAM
and then using a fast data copy routine to put it into Chip ram.
--Chuck McManis
uucp: {anywhere}!sun!cmcmanis BIX: cmcmanis Internet: cmcmanis@Eng.Sun.COM
These opinions are my own and no one elses, but you knew that didn't you.
"If it didn't have bones in it, it wouldn't be crunchy now would it?!"
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!cs.utexas.edu!sun-barr!newstop!sun!stpeter!cmcmanis From: cmcmanis@stpeter.Sun.COM (Chuck McManis) Newsgroups: comp.sys.amiga.tech Subject: Re: PolyDraw replacement - waveform plotting Keywords: PolyDraw, Blitter Message-ID: <133167@sun.Eng.Sun.COM> Date: 20 Mar 90 18:10:19 GMT References: <25661@swrinde.nde.swri.edu> Sender: news@sun.Eng.Sun.COM Reply-To: cmcmanis@sun.UUCP (Chuck McManis) Distribution: na Organization: Sun Microsystems, Mountain View Lines: 16