Re: Pentium emulation

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 28 Jul 1997 21:39:30 +0100 (BST)

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> > Not really. Except for BSWAP the 386/486/586 user mode stuff is basically
> > all down to how you order instructions and how you align them not to new
> > instructions
>
> I thought there was some problem with 386s not write faulting
> correctly when you had kernel level privileges? Hence the 386/486
> differences in verify_area.

Thats one reason the above says "user mode stuff". The 486 also has
INVD WBINVD and some other system level stuff

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