Problem with changing an interrupt...

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#10

From: David Carlson
Date: Wed, 28 Oct 1992 22:27

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Hi all,

I've encountered the following problem:

	After changing the address of the divide by zero interrupt in
the interrupt vector table to an address containing my replacement code,
I attempted to test it by dividing by zero.  This results in an infinite
loop of my replacement code.  However, if I directly  interrupt
with an assembler INT 00H instruction,  it works fine.
	Does anyone know why this is?  What makes INT 00H different from
a real divide by zero?

		Any help is appreciated--please E-mail, as I don't read
this newsgroup regularly...

			Thanks,

				David
			(carlson@ucunix.san.uc.edu)

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Newsgroups: alt.msdos.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!sgiblab!news.cs.indiana.edu!babbage.ece.uc.edu!ucunix.san.uc.edu!carlson
From: carlson@ucunix.san.uc.edu (David Carlson)
Subject: Problem with changing an interrupt...
Message-ID: <Bwurq1.4M3@ucunix.san.uc.edu>
Organization: University of Cincinnati
Date: Wed, 28 Oct 1992 22:27:37 GMT
Lines: 19