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From: RGF@mit-mc@sri-unix.UUCP
Newsgroups: net.micro.cpm
Subject: [RGF: CP/M+(3.0) software]
Message-ID: <5279@sri-arpa.UUCP>
Date: Wed, 7-Sep-83 23:21:00 EDT
Article-I.D.: sri-arpa.5279
Posted: Wed Sep  7 23:21:00 1983
Date-Received: Sun, 18-Sep-83 08:44:44 EDT
Lines: 18

From:  Ronald G. Fowler <RGF@mit-mc>


Date: 7 September 1983 23:17 EDT
From: Ronald G. Fowler <RGF>
To:   ALBERS at NLM-MCS
cc:   RGF
Re:   CP/M+(3.0) software

CP/M 3.0 will indeed work with the old software with the following
disclaimer: direct BIOS I/O calls are supported only for console and
list I/O.  Programs accessing the physical disk routines (e.g., DU,
FINDBAD, and a very few others) must be modified to use the new
system call, "call-BIOS".

Surprisingly, even BYE.COM (the remote console program for CP/M 1.4
and 2.2) works with my banked CPM3, something I had my doubts about at
first, since it patches itself into the BIOS jump table.