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- Newsgroups: comp.sys.amiga.programmer
- Path: sparky!uunet!mcsun!news.funet.fi!news.cc.tut.fi!tut!mt87692
- From: mt87692@cs.tut.fi (Mikko Tsokkinen)
- Subject: Re: Memory copy via blitter
- In-Reply-To: cschneid@amiga.physik.unizh.ch's message of Tue, 22 Dec 1992 14:58:56 GMT
- Message-ID: <MT87692.92Dec23001404@kaarne.cs.tut.fi>
- Sender: news@cc.tut.fi (USENET News System)
- Organization: Tampere University of Technology
- References: <1992Dec21.010818.1095134@sue.cc.uregina.ca>
- <1992Dec22.145856.26691@rzu-news.unizh.ch>
- Date: 23 Dec 92 00:14:04
- Lines: 23
-
-
- In article <1992Dec22.145856.26691@rzu-news.unizh.ch> cschneid@amiga.physik.unizh.ch (Christian Schneider) writes:
-
- > Dave Plummer (plummer@hercules.cs.uregina.ca) wrote:
- > : Could someone email a short example of how to copy 512 bytes within Chip
- > : memory using the blitter? It's totally unrelated to graphics, but since
- > : I want a fast way to copy 512 or 1024 bytes, I'd like to use the blitter,
- > : but all the documentation I can find refers to BitMaps and such.
-
- > I'd use CopyMemQuick() from exec... (Your data is long word aligned,
- > isn't it?)
- > CopyMemQuick is probably as fast as blitter for 512 or 1024 bytes on
- > 68000 and certainly faster on A3000/A4000 ;-)
- > - Chris
-
- While CopyMemeQuick() is good answer. However it is wrong to say if it
- is faster to use cpu even on A4000 because you can leave blitter doing
- it and do something else in the same time. It depends on the situation.
-
-
- --
- Mit
- xxxxx
- "Any sufficiently advanced technology is indistinguishable from magic."
-