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- Path: nntp.teleport.com!sschaem
- From: sschaem@teleport.com (Stephan Schaem)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: C2P
- Date: 9 Jan 1996 01:29:43 GMT
- Organization: Teleport - Portland's Public Access (503) 220-1016
- Distribution: world
- Message-ID: <4csge7$9dv@maureen.teleport.com>
- References: <4cj57f$7qe@irz210.inf.tu-dresden.de> <4cjl2o$4im@maureen.teleport.com> <38231877@kone.fipnet.fi> <4cnma7$jjo@maureen.teleport.com>
- NNTP-Posting-Host: linda.teleport.com
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-
- Stephan Schaem (sschaem@teleport.com) wrote:
- : Jyrki Saarinen (jsaarinen@kone.fipnet.fi) wrote:
-
- : : Oh, word swapping is the 5th pass. What is your opinion,
- : : I think 030/50 should be able to do c2p free. Perhaps
- : : three passes with CPU and the last one with the blitter.
-
- After twidling I got the 4bit version to reach 18ms at 320x256.
- On my 25mhz 030 this equal to half the bandwidth speed.
- Because it uses tables it will never be able to c2p for 'free'.
- But for a 25mhz 030 18ms is pretty acceptable if you have some
- use of the unused blitter.(Because the first 3 pass are done with
- a lookup table the 2 other pass overlaped during the chipmem write,
- so the blitter as nothing to do to help)
-
-
- Stephan
-