Messages in this thread | | | Date | Mon, 28 Jul 1997 12:58:02 +0100 (GMT/BST) | From | Mike Jagdis <> | Subject | Re: Pentium emulation |
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On Fri, 25 Jul 1997, Alan Cox wrote:
> > Couldn't the kernel provide emulation of the Pentium instructions > > for the 386/486, to solve this problem? I guess it could be done > > since it would be very similar to the FPU emulator. > > > > So the question is mainly: Would it make sense? > > 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.
Mike
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