Bring up CPM-8000

From: Dwight K. Elvey <dwightk.elvey_at_amd.com>
Date: Thu Sep 19 12:17:01 2002

Hi
 Since there was a bunch of CPM-8000 stuff showing up
lately, I've been trying to get it to work on my
Olivetti M20 ( what the release code is to run on ).
The code I got was originally from 8 inch disk. I have
both the 8 inch disk images and the files recovered
from the disk. The 8 inch disk were not boot disk
but contained enough information to build a boot disk.
As near as I can tell, the code was to run on a
5-1/4 inch disk and not the 8 inch.
 That is what I have been working on but I've reached
a stumbling block. It seems to be CPM related so people
that know CPM should be the most help ( I mean, know
what directory structures should look like and how
the disk blocks are referenced, not just, I can use
PIP or ED ).
 I've been building a boot image from the files and what
I understand of how CPM should look. I've got it to the point
that it runs the low level bootstrap code but fails
to do the final load of CPM.SYS. I know it is running
the bootstrap because it prints the error message that
it has an error in opening or reading CPM.SYS. This
is only in the bootstrap code.
 I have the files on my PC and I've written some code
to build the image. I then copy the image to a disk
for my M20 and try to boot it. So far it doesn't seem
to get the CPM.SYS file correctly. I can't tell if
it is an issue with the directory I built, the file
location or something about the file itself.
 I hope one of you can help me by looking at my image
file and confirming that I am building the directory
and file correctly, for a CPM type file.
Thanks
Dwight
Received on Thu Sep 19 2002 - 12:17:01 BST