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From: debruyn@philtis.UUCP (F.W.G.M. de Bruyn @ Philips CAD Centr)
Newsgroups: net.lang.prolog
Subject: Re: looking for Prolog
Message-ID: <98@philtis.UUCP>
Date: Mon, 9-Jun-86 23:24:51 EDT
Article-I.D.: philtis.98
Posted: Mon Jun  9 23:24:51 1986
Date-Received: Wed, 11-Jun-86 00:55:57 EDT
References: <546@glasgow.glasgow.UUCP> <70900001@uicsl> <177@bubba.UUCP>
Reply-To: mcvax!debruyn@philtis.UUCP (F.W.G.M. de Bruyn @ Philips)
Organization: Philips - CAD Centre, Eindhoven, The Netherlands
Lines: 47
Keywords: UNSW prolog


I might be able to help shed some light on the UNSW prolog discussions
that have been transmitted recently. In 1984 I spend some time in
academic circles in Sydney Australia , worked on some extensions for
UNSW prolog and had various contacts with the author. At th moment I
still maintain an installation of UNSW prolog for Eindhoven Tech. here
in the Netherlands.

UNSW prolog stands for University of New South Wales prolog, one of 2
academic centers in Sydney, Australia ("down under" for those who have
been there). The main author is Dr. Claude Sammut (the same Sammut as
the one who visited Univ. of Illinois for approx. 0.5 year in (I
believe) 1983). UNSW prolog definitely is an offspring from C-prolog,
but spawning took place in the dark ages of pre 1983. This fact is
acknowledged in the manual anno 1984. Dr. Sammut did some extensive
restructuring, rewriting, in fact re- everything on the C-prolog code.
This made the interpreter faster, more understandable and more
portable then the (ancient) C-prolog version that he started from. I
can't compare it with 1985/6 C-prolog releases, but it certainly beat
the hell out of the ancient C-prolog sources that I've seen (sorry
Edinburgh). I find UNSW without major bugs and good enough to do
serious work with. If you want to hack a Prolog to include your own
built-in predicates for e.g. graphics, then UNSW certainly is interesting.

UNSW prolog used to be approx. 55000 lines of C code, which compiles
to approx. 70 Kbyte executable. My release (vs 4) runs some 1400-1600
LIPS (naive reversal- non optimised clause order) on a VAX 11/750. The
system comes with on-line help, troff your own manual, and libraries.
A license used to be A$ 150, or 200 for academics in 1984. To obtain a
copy and the latest info contact

Dr. Clause Sammut,
Dept of El. Eng. & Comp. Science,
University of New South Wales,
Kensington, NSW 2033,
AUSTRALIA

Ph (02)697-4052
UUCP: {..!{seismo, mcvax}!munnari, ..!decvax!mulga}!claude@elecvax.oz


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| Frank W.G.M. de Bruyn,         Philips, Advanced Developments/ Applied AI |
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