Re: 80386 Multiplication Bug

Article View: comp.sys.intel

Article #1633

#1633

From: John F. Wardale
Date: Tue, 14 Jul 1987 21:46

24 lines
1498 bytes

Instead of all this "test program" non-sense, will someone
*PLEASE*  *POST*  two values that give incorrect results'
(correct and expected-buggy-values) appreciated too.

Does this ONLY occur on these two values, or is it more general?
Can someone at Intel tell us what caused the bug, and/or
more specifically how it got thru simulation without detection?

--> I'm **NOT** trying to smear anyone with this....I'd like to
know cuz we're doing LOTS of simulation here, and are constatnly
looking for pitfalls (to make improvements).  



			John W

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!seismo!uwvax!astroatc!johnw
From: johnw@astroatc.UUCP (John F. Wardale)
Newsgroups: comp.sys.intel
Subject: Re: 80386 Multiplication Bug
Message-ID: <354@astroatc.UUCP>
Date: Tue, 14-Jul-87 17:46:11 EDT
Article-I.D.: astroatc.354
Posted: Tue Jul 14 17:46:11 1987
Date-Received: Fri, 17-Jul-87 01:41:46 EDT
References: <657@csun.UUCP> <546@applix.UUCP>
Reply-To: johnw@astroatc.UUCP (John F. Wardale)
Organization: Astronautics Technology Cntr, Madison, WI
Lines: 24
Keywords: 80386 multiplication wrong how

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