68K ISA project
rich.cini at verizon.net
Mon Jul 12 18:23:32 CDT 2010
I pulled them out and looked. 8/1985 (vol 10, iss. 8) contains the
* Build the BASIC-52
* The DSI-32 coprocessor board (National 32032 processor)
* An introductory article on the Amiga.
The 9/1985 issue (vol 10, iss. 9) contains the following:
* Build the HD64180 Z80 system
* DSI-32 part 2
* EGO home-built CPU
Now, having said that, I have a small database of articles that I keep, so I
looked for 68k SBC-like articles. There were two articles that discussed the
chip itself, one that discussed the MECB Educational Board, one for the
VU68k SBC (Jan 1984), and a 68k processor comparison discussion.
So, I pulled the VU68k issue and indeed it is a 68k SBC built on a Vector
S100 card and uses only 15 chips. It doesn't appear that it uses the S100
buss for anything other than power. It also has a monitor program which
looks pretty good from the command summary but alas, no code.
I'm going to be traveling for a week or so but when I come back I can scan
it if people are interested.
On 7/12/10 3:44 PM, "Ethan Dicks" <ethan.dicks at gmail.com> wrote:
> On Mon, Jul 12, 2010 at 3:39 PM, Bernd Kopriva <bernd at kopriva.de> wrote:
>> this is the "The Definicon 68020 Coprocessor", described in Byte 8+9, 1985
>> ... but it wasn't part of Circuit Cellar
> Hmm... I think I have those issues in a closet. I'll have to go dig
> them out. The M68K family is one of my favorites (in no small part
> due to making a living with it between 1984 and 1994).
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator
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