Early-to-middle IBM-PC history (was: End-user uses for x86-64)

Thomas Charron twaffle at gmail.com
Mon Feb 19 10:32:17 EST 2007


On 2/19/07, Tom Buskey <tom at buskey.name> wrote:
> >   This is, incidentally, one of the "limitations" of x86-64.  In long
> > mode (64-bit mode), you cannot run 16-bit real mode code.  At all.
> > There's no virtual mode, either.  So 64-bit Windows cannot run DOS or
> > Win16 code (of which there is still a depressingly large amount).
> > That's one reason most Windows systems are still 32-bit OS installs.
> > Of course, it means all the cool x86-64 stuff just ends up being used
> > primarily as a really, *really* fast i386.
> Hmm, does DOSemu  have issues on 64bit linux?

  DOSemu has a software 8086 emulator built in.

-- 
-- Thomas


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