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From: skraw@thiger.UUCP (Stephan von Krawczynski)
Newsgroups: comp.sys.amiga.hardware
Subject: Re:  GVP Trade-in
Message-ID: <02109.124951@thiger.UUCP>
Date: 20 Aug 90 16:19:51 GMT
References: <589@oregon.oacis.org> <38CP09P@dri.com> <02048.002057@thiger.UUCP> <83242@tut.cis.ohio-state.edu> <1143@mpirbn.mpifr-bonn.mpg.de> <03283.AA03283@babylon.UUCP>
Organization: THIndustries Software Development
Lines: 68

>In article <03283.AA03283@babylon.UUCP> rbabel@babylon.UUCP (Ralph Babel) writes:
>In article <02048.002057@thiger.UUCP> skraw@thiger.UUCP
>(Stephan von Krawczynski) writes:
>
>> 1. GVP does not DMA to amiga-memory.
>
>Not true, GVP does full DMA!

which gvp? do you know what brings me down? i did try to get a
new gvp-controller. in fact i did only reach a production-date of
may 1990. and this controller had HEAVY problems with sony-opticals
(in fact we couldn't get them working though we tried hard).

>This guy doesn't know what he's talking about - a very bad
>habit when you're talking about a competitor's product. See
>my earlier articles for details.

possibly i didn't get them (would you mail them to me?)

>> 2. why is DMA so important for you? it is generally slower
>> than the processor-method (lets call it this way).
>
>Careful ...

as long as i don't see any controller being faster than ALF3 ...

>"PROCESSOR's running into heavy troubles"? Freudian slip?

see other posting. in fact, we both know that the processor
cannot run into problems having about half of the DMA-cycles
(to chipmem) available in the system.

>DMA to real Fast-RAM should not be affected by the DMA-load
>on Chip-RAM. And if Zorro-II DMA cannot get to the Chip-RAM,
>then the processor probably cannot either.

probably - you say it.
btw, if you dma to fast-mem, is the processor able to access
it at the same time? (i don't know this, please answer)

>>> The new hardcard board with space
>>> for 1 MEG SIMMS looks like a great idea.
>>
>> this is the absolut last idea one could have, because if
>> you upgrade your amiga with a 020/030/0x0-board (having
>> 32-bit mem) you have some slow memory hanging around and
>> will never get rid of it.
>
>I think there are quite a few Amiga users around who are
>happy with a 68000-based Amiga, a hard disk, and RAM.

quite a few amiga users will be able to buy a 020-card in
the future (they're getting cheaper and cheaper).

>I won't comment on the other stuff. david r watters and
>Michael van Elst did a perfect job on that. Thanks guys!

sorry guys, my newsfeed broke down for 3 days, i didn't
get them. are you able to mail the articles to me?

>Ralph

--
best regards, 
stephan von krawczynski 

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