5 Sep
2007
5 Sep
'07
4:33 p.m.
--- Fred Cisin <cisin at xenosoft.com> wrote:
On Wed, 5 Sep 2007, Chris M wrote:
We could be getting our lines crossed here. Typically
these things are called "coprocessors". I defy that
designation. Granted there could be some offloading of
instructions (sort of kind of like what happens w/an
onboard 8087), but regardless, the objective is to
replace the 8088. I had been wondering if there were
boards for a pc that supplemented the operation of the
onboard mpu by providing another processor
altoghether, and in no way replacing the old 8088,
thereby in effect giving you 2 pc's in one. Of course
there were z80 boards, 68k? boards that accomplished
this.
Referring to an IBM PGA card is cheating :). It's
function was not to provide a second environment.
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Is it's intended to supplant or supplement
the
8088?
Are you sure it just isn't a mpu board for
some
unit
w/a passive backplane? I don't mean to insult
your
intelligence, just that it's a possibility.
I've had ones that were explicitly to replace
(supplant?) the 8088