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SubjectRe: hardware problems
On 10 Apr 96 at 21:59, Alan Cox wrote:

> > > I'm afraid the default should be reliable operation, using a link
> > > to broken_hw.h. There are too many pieces of junk out there.
> > > Maybe even assume i386 if broken_hw.h is selected.
> > 386 can be broken, too (was it multiply or divide?)
>
> Two 386 bugs of major note:
> 1. POPAD with a prefix (16/32bit in the opposite mode crashes some CPUs)
> 2. 32bit MUL is faulty in some _very_early_ 386 chips
>
> Also 486 bugs including:
> 1. Ability to write outside of your segments by about 4 bytes with a
> really dubious complex to set up trick.
>
> See www.x86.org some day - some quite fun pentium/486/386 features
>
> Alan

We should design the "Ready for Linux" logo now! ;-)
(My PC already has the "linux inside" sticker from the German IX
magazine)

Ulrich


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