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- Path: informatik.tu-muenchen.de!fischerj
- From: fischerj@Informatik.TU-Muenchen.DE (Juergen "Rally" Fischer)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: doubling pixels horizontally
- Date: 23 Mar 1996 04:59:55 GMT
- Organization: Technische Universitaet Muenchen, Germany
- Distribution: world
- Message-ID: <4j00gb$s3p@sunsystem5.informatik.tu-muenchen.de>
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-
- Ludvig Pedersen (ludvigp@ifi.uio.no) wrote:
-
- : Possible. Is movem read faster on a 020 with fastmem?
- even on chipmem! :)
-
- : >|> How *hard* can it really be??? This is pretty elementary math! ;-)
- : >hey wait a minute, I'm master of theoretic cycle calculation if
- : >given proper data, I already released 020-14 fastmem timings
- : >before having fastmem in my A1200. baeh! :)
- : >we talk about mem moves. i.e
- : No. reg moves (more a language prob?)
- no. mem moves :)
-
- ok, I move.l (a0)+,(a1)+, this is a mem move for mem speed test.
- please show me the reg move :)
-
- : >where is the move reg,reg you (and writer of bustest) talk about ? ;)
- : Well, ehh, wasnt we just talking about that?
- please show me the reg move :)
-
- : The 203300 dbra's etc was from the reg move test.
- mhmhm...
- what about the "reg move overhead" in memspeed testprogramms ?
-
- : Anyway, to clear things up a bit:
-
- : Do you agree that a register move on my 030-50mhz takes 40ns?
- 1/50e06*2=4e-08 yes :) 141ns on 020-14 :)
-
- : >background :) mixing amigademo with mtv :D well, genlocks are not
- : >ghostlook-compatible I guess, demo must be switched to 4pass...
- : Yes, if you don't want ghosted genlock display too.
-
- well, what I expect is that it won't just lock ghosted but
- give major display errors, esp in cheap or selfmade genlocks.
- because the genlock would have to switch between Ami pic and
- TV pic each pixel.
- while ghost-look on 1084 (and my TV for example) are almost
- error free.
-
- : <sb>Ludde - Amiga Demo Coder
- : <sb>Virtual Reality & Official Be developer
- : <sb>ludvigp@ifi.uio.no
- ------------------------------------------------------------------------
- fischerj@Informatik.TU-Muenchen.DE (Juergen "Rally" Fischer) =:)
-
-