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From: thj@hpcnof.UUCP (Thomas Hjellming)
Newsgroups: net.micro.pc
Subject: Re: How do you beep?
Message-ID: <960003@hpcnof.UUCP>
Date: Thu, 4-Sep-86 14:55:51 EDT
Article-I.D.: hpcnof.960003
Posted: Thu Sep  4 14:55:51 1986
Date-Received: Sat, 6-Sep-86 00:03:00 EDT
References: <23900032@siemens.UUCP>
Organization: HP Colorado Networks Division
Lines: 22


>How do you program the sound on an IBM AT or XT?  The technical reference
>manual does not help much.  The PLAY and SOUND instructions of BASIC are not
>useful in a C program.  (No, I don't want to fork BASICA to make a beep :-)
>
>Would somebody send me the port address and values for different notes, or a
>simple C program, or a simple Pascal program, or some other helpful program
>which does not rely on library routines to do the real work.  If there is
>sufficient interest I will summarize the most useful information to the net.
>
>Thanks,
>Fred

      The 'Programmers Guide to the IBM PC' by Peter Norton contains
an entire chapter about sound generation on the PC family.  It contains
all the information you are requesting.


Tom  Hjellming
Colorado Networks Division
Hewlett-Packard
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