From:	sam AT greenaum DOT demonARSE!ARSE!ARSE!.co.uk
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: DJGPP and IO Port Programming.
Date:	Mon, 01 Feb 1999 11:03:10 GMT
Organization:	Rossum's Universal Robots
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

I have no problems using DJGPP in a Win95 DOS box. My program writes
samples to the Soundblaster's IO port, simply by blasting the bytes at
it one by one, I haven't got DMA figured out yet. Obviously it sounds
terrible, and the timing waves all over the place, but I get about
10,000 samples a second through it, and each one of those is 2 or 3 IO
writes. This is on a 486DX4/100 on the ISA bus.

If a Windows program tries to use the sound card, and my program
claimed it first, the Windows one just reports the device isn't
available. If Windows is using it when I start my prog, my prog
doesn't go anywhere, I think Windows might be blocking it. Anyway you
shouldn't have problems, Windows is quite good with it.


------------------------------------------------------------------------

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