9 Mar
2008
9 Mar
'08
5:34 a.m.
-------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