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From: cordy@utcsri.UUCP (J.R. Cordy)
Newsgroups: net.micro.pc
Subject: Sound Generation on IBM PC/XT
Message-ID: <838@utcsri.UUCP>
Date: Fri, 1-Mar-85 11:40:42 EST
Article-I.D.: utcsri.838
Posted: Fri Mar  1 11:40:42 1985
Date-Received: Fri, 1-Mar-85 12:42:25 EST
Distribution: net
Organization: CSRI, University of Toronto
Lines: 21

I've got a problem : I have a set of programs which use sound generation
on the Texas Instruments Professional PC, and I'd like to convert them
to the IBM PC.  The trouble is, the TI Pro has very nice ROM BIOS software
interrupts to set the sound frequency, the duration, to turn the speaker
on and off, and to test whether a sound is done or not.  The IBM PC seems
to have no such BIOS entries.  

I'd like some advice : what's the easiest way to perform each of the
above operations on a standard vanilla IBM PC?  Do I read/write direct
to/from the chip or what?  Where is it?  Is there and help in the ROM?

Assistance, especially in the form of examples, is solicited.  Reply by
mail to 

	Jim Cordy
	decvax!utcsri!cordy	USENET
	Cordy@Toronto		CSNET

Thanks, I appreciate it.
-- 
James R. Cordy