On Nov 13, 21:48, Eric Smith wrote:
> Peter Turnbull wrote:
> > Then I get three because I understood it, and can think of
processors
> > that do it -- and a few more because I've not only got some (MIPS
> > R4600, R5K and R10K)
>
> None of which were available in November 1993. And having used the
> R4600 quite a bit in 1996, I'm fairly sure that it did *not* have
> speculative execution.
I thought the R4600 was, though maybe it was early 1994, but actually I
wasn't claiming any particular date -- just that they do speculative
execution.
> > The Pentium can do speculative execution as well,
>
> The Pentium was superscalar, but did not do speculative execution.
> SE was introduced with the Pentium Pro, which was not introduced
until
> 1995.
I meant the Pentium family. Yes, I knew the Pentium Pro was the first
-- and it didn't work all that well so Intel changed the branch
prediction algorithm for the Pentium II.
--
Pete Peter Turnbull
Network Manager
University of York
Received on Fri Nov 14 2003 - 02:50:55 GMT