Re: i486 base architecture

[Nicholas Miell <nmiell comcast net>]

On Tue, 2004-11-30 at 23:06 -0500, William M. Quarles wrote:
> Alan Cox wrote:
> > On Tue, Nov 30, 2004 at 09:56:23PM -0500, William M. Quarles wrote:
> > 
> >>What differences between i386 and i486 would become a benefit if the 
> >>base architecture was changed from i386 to i486?
> > 
> > The only thing 486 might give is the ability to consign the old linuxthread 
> > stuff to the dustbin of back compatibility.
> 
> I'm guessing that's supposed to be a joke?

No, the x86 NPTL implementation requires the CMPXCHG instruction, which
was introduced in the i486.
-- 
Nicholas Miell <nmiell comcast net>