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Article #2072

Re: FDIV bug in Pentium chips!!!

#2072
From: Baraa Basata
Date: Sun, 04 Dec 1994 14:58
18 lines
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Stephen@vollans.demon.co.uk (Stephen M Baines) writes:

>In article <3bl9af$jlp@xap.xyplex.com>,  <dlaskey@xyplex.com> wrote:
>>By the way...If you do any serious number crunching and use 256 in your 
>>calculations such as cell A1 (4195835 * 256)
>>                     cell A2 (3145727 / 256)
>>                    cell A3  =a1/a2
>>You are boned.  The Pentium will give the result 87407.92362
>>Acual answer is                                 87413.2569
>>
>>Hmmmmmm The error is to the LEFT of the decimal point.  These Chips Suck!

>Makes me happy, maybe the Pentium is a fast chip, but at least my 386 can
>add. Another good reason for me not to upgrade!

	Well, the Pentium shouldn't have too much trouble adding. From 
what I hear, only floating point division (the FDIV instruction) is 
afflicted.
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From: bsb@umcc.umcc.umich.edu (Baraa Basata)
Newsgroups: comp.sys.intel,bionet.molec-model,sci.chem
Subject: Re: FDIV bug in Pentium chips!!!
Date: 4 Dec 1994 09:58:04 -0500
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