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From: dyb@iuvax.UUCP
Newsgroups: net.lang.lisp
Subject: Re: Need SCHEME interpreter/compiler
Message-ID: <5800012@iuvax.UUCP>
Date: Sun, 26-Jan-86 13:39:00 EST
Article-I.D.: iuvax.5800012
Posted: Sun Jan 26 13:39:00 1986
Date-Received: Thu, 30-Jan-86 00:35:14 EST
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Nf-From: iuvax!dyb    Jan 26 13:39:00 1986


Chez Scheme is a very good implementation of Scheme for 4.2BSD UNIX
Vaxes.  Scheme programs run faster in Chez Scheme than corresponding
Lisp programs in Franz.  Chez Scheme has some nice bells and whistles,
too, like arbitrary-precision rational arithmetic, floating point
arithmetic, clean user interface, engines (for implementing multi-
processing), user-programmable exception handlers, and other stuff.

Chez Scheme is about one year old now, and among the 12 or so places
actively using it there have been very few bugs reports or other
complaints.  We are using it here at Indiana to teach over 400
students a year in 5 or 6 different courses (all on one Vax 785!)
It is distributed by "Cadence Research Systems" to US universities
for a $400 one-time fee to cover legal, material, and time costs
($1000 for US companies).  There is a license.  The distribution
includes system and documentation.  I developed Chez Scheme initially
while I was a graduate student at UNC Chapel Hill.

If you are interested, contact

    Cadence Research Systems
    620 Park Ridge Road
    Bloomington, IN  47405
    Phone (answering machine): 812/333-9269

or write or call me at the address below.

Kent Dybvig
Computer Science Department
Indiana University
812/335-8653

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