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Mail Archives: djgpp/2002/03/05/20:30:09

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From: "Orlando Llanes" <ollanes AT prodigy DOT net>
Newsgroups: comp.os.msdos.djgpp
References: <60683970 DOT 0202251956 DOT 22345c04 AT posting DOT google DOT com> <nl4m7ucpnt79grj0i71pfj6g82o8ffgpfd AT 4ax DOT com>
Subject: Re: Timer Interrupt ?????
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Date: Wed, 06 Mar 2002 01:17:08 GMT
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

"Jack Klein" <jackklein AT spamcop DOT net> wrote in message
news:nl4m7ucpnt79grj0i71pfj6g82o8ffgpfd AT 4ax DOT com...
> I'm doing this from memory, because it has been many, many years, so
> ...
> I wish I had some of the old actual source to post.

    That sounds about right, there is an example programmed in Pascal
(though it's not difficult to "translate" into C). It's from the PCGPE, and
the file is PIT.TXT. It's at
http://www.cse.iitb.ernet.in:8000/proxy/stuff/programming/languages/assembly
/x86/gameasm/pit.txt
    The only thing you missed is that you must send the EOI (send byte 20
hex to port 20 hex) to the controller for all the times the BIOS handler is
not called.


See ya!
Orlando



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