> 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!
(Pulling out my computer architecture notes from spring '95...)
That bug was caused by a few incorrect border cases in the lookup table
used by the SRT radix-4 division module. 5 incorrect entries, to be
precise, where a quotient of 0 was returned instead of +2.
Are you thinking of another pentium bug? ;-)
Adam
-- You crucify all honesty \\Adam D. Bradley artdodge@cs.bu.edu No signs you see do you believe \\Boston University Computer Science And all your words just twist and turn\\ Grad Student and Linux Hacker Reviving just to crash and burn \\ <>< ---------> Why can't you listen as love screams everywhere? <--------
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