6 Nov
1998
6 Nov
'98
3:10 p.m.
On Fri, 6 Nov 1998, Zane H. Healy wrote:
As for a Math CoPro for the 486, I'm not sure I
ever saw a 487 chip, but I
always figured that they took the chips that didn't cut it as a normal
processor but had a good Math CoPro, and sold them as 487's.
Has it been 10 years since the 486 came out? It must be getting close.
In any case, I think Max was right about the 487 really being just a 486
in a different package, and the 486SX was disabled by some logic when the
487 was present. I seem to recall that some software/hardware was able to
use the 486SX/487 combo as a crude multiprocessor box.
-- Doug