are there any 68000 multi-cpu systems out there?
ethan.dicks at usap.gov
Sat Apr 19 10:29:20 CDT 2008
On Sat, Apr 19, 2008 at 11:02:59AM -0400, der Mouse wrote:
> >> Just out of curiosity, were there any machines out there that were
> >> built from multiple MC68000's CPU's?
> > In 1983, Metheus corp, did the classic 68k X 2 cpus to fix the double
> > bus fault problem on their VLSI design workstation.
> Were they 68000s, though? All the ones double-fault-fix machines I
> know of were, I think, using 68010s.
I've never seen a Metheus machine, but I am *certain* the Perkin-Elmer
was dual MC68000 processors, not MC68010.
Besides... you don't _need_ to do funky tricks to implement paged-demand
VM on a 68010... it saves enough state on the stack during a page fault
to restart where it left off when it crossed the page boundary.
That should be one of the reasons the AT&T UNIX PC (7300?) had a 68010
in it - easy-to-implement VM.
Ethan Dicks, A-333-S Current South Pole Weather at 19-Apr-2008 at 15:20 Z
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Ethan.Dicks at usap.gov http://penguincentral.com/penguincentral.html
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