Date : Fri, 27 Dec 1985 09:17:00 PST
From : Alan Bomberger <ACB.COR@OFFICE-1.ARPA>
Subject: Osborne Executive question
I have this product (Write-Hand-Man) that has recently been converted to run on
CP/M 3.0 (primarily for the C-128 market). I find that it fails to work on the
Executive. Since I had trouble with the Vixen (another osborne creation tha
was a non-standard CP/M 2 machine) I suspect the Executive is not a "simple"
CP/M 3.0 machine. Can someone answer a few questions.
What is the size of the Common Bank.
What are the System Addresses (in both banks, BDOS and BIOS addresses, SCB
address and the like)
What are the first few instructions of the BDOS (in both banks)
Is the BIOS jump vector "complete" allowing SELBNK calls from RSX's that happen
to be in the common bank (see question 1).
WHM is an RSX that Reenters the BDOS and thus must reach inside and save Stacks
and state variables in both banks before it reenters the BDOS. I had hoped
that since CP/M 3.0 was even less alive than CP/M 2.2 (have you ever tried to
get an unconfigured CP/M 3.0 system with all the manuals and source?) there
would be few "custom versions". Leave it to osborne.
Thanks for any help