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From: steveh@devildog.UUCP (Steve Hendershott)
Newsgroups: comp.sys.intel,comp.misc
Subject: RISC/CISC Dual Processor
Message-ID: <947@devildog.UUCP>
Date: 5 Dec 89 20:02:36 GMT
Sender: steveh@devildog.UUCP
Reply-To: steveh@devildog.UUCP (Steve Hendershott)
Distribution: na
Organization: AT&T - Piscataway, NJ
Lines: 20

I have recently been reading some articles and advertisements for a dual
processor system including both an Intel 80486 and an Intel 80860. Olivetti
has manufactured such a system and is using the i860 as a co-processor of
some sort on the motherboard - not an add-on board. Both processors have
their own cache and share the main memory. It seems the i860 is controlled
by (and held back by) the 25MHz limit of the 80486.

What I can not figure out is how the i860 is used in a configuration like
this. Is it used as a special purpose processor with a library of routines
that it can execute?

If anyone is familiar with this architecture, I would appreciate any 
information.

Thank you

Steve Hendershott
AT&T
steveh@acpy01.att.com
ATTMAIL!shendershott