Multiple CPUs (was 6502 CPU schematics) - test-drb@ccmp.vtda.org

9 Mar 2008

-------Original Message:
Date: Sat, 8 Mar 2008 14:09:17 -0800 (PST)
From: Fred Cisin <cisin at xenosoft.com>
Subject: Re: 6502 CPU schematics

...
  Which reminds me,  does anybody else remember those
machines that had
 multiple CPUs in them?  Or the option of plugging different ones in? 
Dimension 68000 was deliberately a multi-processor machine: 68000, 8088,
6502, Z80?

and, of course, we hafta mention Dec Rainbow and Eagle machines with 8088
and Z80

Basis? (Apple ][ copy) had Z80 +6502
at one point, somebody at Apple estimated that 20% of all Apple]['s had
Z80 softcards

There were alternate processor cards for PC, including Z80, 6502, 68000,
80386, . . .

---------Reply:

Don't forget Cromemco's DPU (68K & Z80), XPU (68010 & Z80) and
XXU (68020 & Z80 on I/O proc.)

m