Re: Intel microcode fixes [OFF-TOPIC]

C S Hendrix (shendrix@escape.widomaker.com)
Sat, 21 Nov 1998 15:59:43 -0500


In message <XFMail.981120103023.simon@koala.ie>, Simon Kenyon writes:

> On 19-Nov-98 doctor@fruitbat.org wrote:
> > Think of how the Intel Floating Point Bug would have been a
> > non-issue if Pentiums were microcode upgradable?
>
> i think that was a bad example to pick
> the floating point bug was (i believe) caused by crosstalk
> no amount of re-microcoding could have fixed that!

Actually, it was a large lookup table (or similar item) on the chip
which was created with missing data. That was why the bug surfaced
only for certain number ranges.

--
Shannon - shendrix@widomaker.com - InfiNet?
----------------------------------------------------------------------
"If history teaches anything, it teaches self-delusion in the face
of unpleasant facts is folly." -- Ronald Reagan

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