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RE: [N8VEM-S100:448] S-100 8086 CPU board done, ready for manufacturing
FWIW, I just completed a fairly extensive ROM BIOS for this board. Its ~10K
lines of code but now allows one to boot a standard MSDOS V4.01, unaltered,
(using the ZFDC FDC board and IDE Board) . It works with our Propeller
driven Console IO Board and/or Lomas CGA Video board. The latter is a
stepping stone to an S-100 VGA video board Andrew and I are doing (Using
the Cirrus logic CP5420 Chip). On a properly terminated S-100 bus the 8086
runs at 9MHz -- however be warned, depending on your system your mileage may
A description of the ROM BIOS can be see and downloaded here.
It should be fairly easy to modify this BIOS for other hardware.
A short write-up of the board can also be seen here:-
John Monahan Ph.D
From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On
Behalf Of lynchaj
Sent: Sunday, October 23, 2011 6:05 AM
Subject: [N8VEM-S100:448] S-100 8086 CPU board done, ready for manufacturing
Hi! Good news! The S-100 8086 CPU board has finally finished!
I am getting ready to make a manufacturing order for the S-100 8086 CPU
board. There have been three prototype boards already that John has built
and tested so I think this board is in good shape. John also ported
CP/M-86, monitor, and a BIOS among other software.
Since it has been so long I am asking everyone who has signed up for the
S-100 8086 CPU board to reconfirm their request for the board.
There has to be about 20+ boards or so to make the PCB order feasible.
Thanks and have a nice day!