Kevin Lawton wrote:
>
> Ulrich Weigand wrote:
>
> > Now, how to virtualize real/v86 mode is a whole other question ;-)
> > I really think we should get protected mode working first ...
> > B.t.w., in v86 mode, every software interrupt drops back into
> > protected mode as well (unless you use this semi-documented
> > 'extended v86 mode' ...)
>
> Speaking of virtual-8086 mode extensions, there is an
> even less documented protected mode virtual interrupts
> feature as well (PVI). I only found one article on PVI
> on the 'net. The x86.org site features an article
>
> http://www.rcollins.org/articles/pvi1/pvi1.html
>
> If anyone has other info on PVI, please let me know.
> The article above didn't cover everything but was
> very useful.
Well, I usually get my x86 stuff either directly from
intel, or from www.x86.org, or from www.sandpile.org.
x86.org is run by robert collins, so it may be that it
is the same as the site you quote above (I haven't looked
at it.) I don't know whether sandpile has anything about
PVI... have a look.
Ramon
