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From: rbabel@babylon.UUCP (Ralph Babel)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: GVP Trade-in
Message-ID: <03283.AA03283@babylon.UUCP>
Date: 27 Aug 90 04:42:50 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>
Lines: 43

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!

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.

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

Careful ...

> you win nothing because you have a whole lot of DMA going
> on already inside the system and processor's running into
> heavy troubles sometimes, e.g. harddisk-performance is
> very low while using overscan-graphics (just to mention an
> example).

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

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.

>> 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.

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

Ralph