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 Precedence: bulk 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.