Path: utzoo!bnr-vpa!bnr-fos!bigsur!bnr-rsc!bcarh185!schow
From: schow@bcarh185.bnr.ca (Stanley T.H. Chow)
Newsgroups: comp.sys.amiga.tech
Subject: Re: DMA in VM
Message-ID: <1590@bnr-rsc.UUCP>
Date: 2 Dec 89 21:02:24 GMT
References: <14059@grebyn.com> <8778@cbmvax.UUCP>
Sender: news@bnr-rsc.UUCP
Reply-To: bcarh185!schow@bnr-rsc.UUCP (Stanley T.H. Chow)
Organization: BNR Ottawa, Canada
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In article <8778@cbmvax.UUCP> daveh@cbmvax.UUCP (Dave Haynie) writes:
>Do you know of any way to ask the A2090, or any other controller,
>to DMA into a discontiguous I/O buffer?  Of course not!   [...]   

I do, I do. I have a DMA controller on my Amiga-1000 that can do DMA
to discontiguous regions. [This is the controller from Side Effects
that never got to market.]

In fact, all the smarts is in the AMD disk controller chip, we just
added the DMA interface.

Stanley Chow        BitNet:  schow@BNR.CA
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(613) 763-2831		     ..!utgpu!bnr-vpa!bnr-rsc!schow%bcarh185
Me? Represent other people? Don't make them laugh so hard.