-----Original Message-----
From: cctalk-bounces at
classiccmp.org [mailto:cctalk-
bounces at
classiccmp.org] On Behalf Of David Griffith
Sent: Tuesday, December 27, 2011 2:27 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: FW: [N8VEM-S100:575] S-100 8086 Up and Runing
On Mon, 26 Dec 2011, Andrew Lynch wrote:
Hi,
Good news on the S-100 8086 CPU board.
First confirmed working installation "in the field" AFAIK.
If we've gotten this far, I think demonstrating a working CP/M-86 will
be along shortly.
John already has CP/M-86+ running in the lab.
http://s100computers.com/My%20System%20Pages/8086%20Board/8086%2
0CPU%2
0Board
.htm
What are the possibilities of running DOS of some sort and a homebrewed
VGA board?
--
David Griffith
dgriffi at
cs.csubak.edu
Hi Dave! Thanks! The possibilities are pretty good if you are patient.
John and I are developing two new boards to address this very issue.
The current S-100 8086 CPU board runs CP/M-86+ and MSDOS 4.01. I imagine it
could run FreeDOS as well if someone were to port it.
However for really good PC like compatibility you'll want these two boards
we are working on:
1. S-100 MS-DOS Support board
Adds the essential guts of a PC/AT motherboard minus CPU and RAM to the
S-100 bus. In development and approaching initial "production" status in
probably 6-8 weeks.
http://s100computers.com/My%20System%20Pages/MSDOS%20Board/MSDOS%20Board.htm
http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder¶m=S-100%20MS…
20Support%20Board
2. S-100 VGA
Adds a GD5420 Super VGA chip to S-100 bus. Has just started development.
John has the initial prototype for build and test -- no ETA.
http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder¶m=S-100%20VGA
In theory, with the above boards with a S-100 8086 CPU board and S-100 4MB
SRAM you could build a more or less PC/AT compatible S-100 system.
This should dramatically add to the amount of available software for your
system.
There is also a S-100 80286 CPU board in development. All the S-100 CPU
boards are or will be TMI compatible to allow multiple CPU bus masters.
Apparently at least one N8VEM builder has a system which is demonstrating
S-100 8086 CPU and S-100 Z80 CPU dual masters.
http://groups.google.com/group/n8vem-s100/browse_thread/thread/235e20227d03f
046
This is not the only example but the most recent and has readily available
information online.
It is an all
S100computers.com/N8VEM system except for the motherboard.
Unfortunately the number of S-100 boards we've got now (24) greatly exceeds
the number of slots (8) on the S-100 backplane PCB.
I guess that means a larger S-100 backplane PCB is forcing its way into the
job queue. ;-)
Hope this helps. Please let me know if you have any questions. Thanks and
have a nice day!
Andrew Lynch