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From: bridger@RAND-UNIX.ARPA.UUCP
Newsgroups: comp.os.cpm
Subject: (none)
Message-ID: <8705201732.AA09258@rand-unix.arpa>
Date: Wed, 20-May-87 13:32:41 EDT
Article-I.D.: rand-uni.8705201732.AA09258
Posted: Wed May 20 13:32:41 1987
Date-Received: Fri, 22-May-87 01:30:08 EDT
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In reply to your: 19 May 87 15:57:11 GMT
Date: Wed, 20 May 87 10:32:35 PDT
From: bridger@rand-unix.arpa

Peter Teuben--

Some of your command-processor-related problems may be due to using
tools (such as VFILER) that are designed to be run under ZCPR3 on a
system with an earlier command processor (the original ZCPR).  At
least some of the Z-System tools assume (without checking) that they
are running in such an environment.  When run on a standard cp/m 2.2
system, for example, some features will not function correctly.

The TurboROM (by Plu*Perfect Systems & Advent) for Kaypros ('83, '84, 10)
is shipped with the original ZCPR ("ZCPR1"), the public-domain
replacement for Digital Research's CCP developed by several veterans
of this info-cpm list.

The copyright for ZCPR3 is assigned to Echelon Inc. and copies
can be obtained from them or one of the Z-NODE BBS's.  If you
have a copy of it, or another command processor, you can replace
ZCPR1 in your TurboROM system, as outlined in the manual.

BackGrounder ii (a copyrighted product from Plu*Perfect Systems)
incorporates a command processor that supports ZCPR3.3 functionality.
So, when you began using BGii, the tools such as VFILER were able to
operate as expected.

The new ZCPR3.3 has been developed by Jay Sage, with numerous
contributions from Z-System users.  It will be available from Echelon
and Z-NODES.  One new feature is a "type-2 environment" COM file that
is loaded to and executed at an environment-specified address
(e.g. 8000 hex).  This permits extended command processors, error
handlers and other Z-system shells to leave the lower TPA unchanged
from the previous program.  The "GO" command will therefore work for
all but very large programs, even after a shell has been re-invoked.

BGii (v 1.13) supports this and other ZCPR3.3 features.  I expect
Jay will soon post further info about the 3.3 version.

--bridger