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Path: utzoo!linus!decvax!harpo!eagle!mhuxi!houxm!ihnp4!inuxc!pur-ee!CSvax:Pucc-H:Physics:piner
From: CSvax:Pucc-H:Physics:piner@pur-ee.UUCP
Newsgroups: net.micro
Subject: LDOS news
Message-ID: <1047@pur-phy.UUCP>
Date: Tue, 11-Oct-83 03:25:29 EDT
Article-I.D.: pur-phy.1047
Posted: Tue Oct 11 03:25:29 1983
Date-Received: Wed, 12-Oct-83 22:10:03 EDT
Organization: Purdue University Physics Dept.
Lines: 25

I talked to the people at Logical Systems today and so I have
a little news for LDOS users. Version 5.1.4 is now available.
The update cost for those without an extended support contract
is $10. They tell me that you can get updates to the MAX-80
version direct from Logical System too. I also ask them about
version 6.0 and here is what they told me. I wanted to know
if software written to run under 6.0 would run under 5.1.x if
the SVC table was installed. They said that in general, it would
not. The reason is, 6.0 is for RAM based machines only. It loads
user programs starting at 2800 hex. while 5.1.x loads user
programs at 5200 hex. So most programs written for 6.0 won't
work with 5.1.x. You should be able to go in the other
direction. If you write a program to use the SVC calls under
5.1.x, it should work under 6.0. They made it quite clear
however, that 5.1.x software using the SVC calls may not work
under 6.0 in some cases.
 As for the MAX-80 version of 6.0, they said they haven't heard
anything from Lobo yet. They also said, that a third party is
considering contracting the work for the MAX if Lobo decides not
to. So I'm afraid that is still up in the air. Lobo claims they
will have Logical Systems back at it soon, but any time a
business changes hands, anything can happen.

					Rich Piner
					Purdue Physics Dept.