From:	bmorgan AT sdcc3 DOT ucsd DOT edu (Brent Morgan)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Using DMA under DJGPP
Date:	16 Jul 1997 00:11:07 GMT
Organization:	University of California, San Diego
Lines:	16
Message-ID:	<5qh3ir$noo$1@sdcc12.ucsd.edu>
NNTP-Posting-Host:	sdcc3.ucsd.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I've successfully programmed several memory mapped cards under DJGPP
V2, but I've now decided that I'd like to use DMA with one of them
as well.  Are there any gotcha's?  So far as I can tell, the FAQ
doesn't mention DMA explicitly.

From a _VERY_ cursory look at the info I have on DMA, it would appear
that one concern is that the memory addresses don't cross a 64K
boundary and are allocated in the first 1MB of RAM.  Or will DJGPP
transparently take care of this for me?

Many thanks in advance for your responses.
-- 
Brent A. Morgan,  University of California, San Diego
I regret penalizing legitimate email users, but due to UCE all email
from juno, hotmail, and netcom will be automatically sent to /dev/null.

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