Re: Lisp for the Macintosh - Mac PSL
Posted: February 22nd, 1985, 1:56 am
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From: info-mac@uw-beaver
Newsgroups: fa.info-mac
Subject: Re: Lisp for the Macintosh - Mac PSL
Message-ID:
Date: Wed, 30-Jan-85 10:24:49 EST
Article-I.D.: uw-beave.669
Posted: Wed Jan 30 10:24:49 1985
Date-Received: Fri, 1-Feb-85 00:49:33 EST
Sender: daemon@uw-beaver
Organization: U of Washington Computer Science
Lines: 30
From: John W. Peterson
Speaking of Lisp on the Mac, we have a small version of Utah's PSL
(Portable Standard Lisp) now running on the Mac. For those of you
who don't know about PSL, it is a portable lisp implementation written
almost entirely in itself. Versions of PSL currently run on the Vax,
the Dec-20, IBM mainframes, Cray's, and some 68000 based systems.
It is essentially MIT Mac Lisp derivitive.
The Macintosh PSL has been trimmed down, things like floating point
support and the compiler are not implemented. However, it does
run on 128K machines! The heap is large enough to support educational-
type programs, e.g., 3 pages or so in length. It does have a
garbage collector.
The system takes advantage of the Macintosh window system and has
an editor window and a transcript window (the editor even knows
how to do paren matching...)
We are currently alpha-testing it, and will be using it with lower
division CS classes here at Utah in the next couple weeks. Since
all of our instructional Macs are 128K, ability to run on the
small machine was important.
We are negotiating release to the rest of the world, however it won't be
available for outside distribution for a while yet. We definitly intend on
making a low-cost version available for consortium use.
John W. Peterson (JW-PETERSON@UTAH-20)
-------
Posting-Version: version B 2.10.2 9/18/84; site uw-beaver
Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxb!mhuxn!mhuxm!mhuxj!houxm!vax135!cornell!uw-beaver!info-mac
From: info-mac@uw-beaver
Newsgroups: fa.info-mac
Subject: Re: Lisp for the Macintosh - Mac PSL
Message-ID:
Date: Wed, 30-Jan-85 10:24:49 EST
Article-I.D.: uw-beave.669
Posted: Wed Jan 30 10:24:49 1985
Date-Received: Fri, 1-Feb-85 00:49:33 EST
Sender: daemon@uw-beaver
Organization: U of Washington Computer Science
Lines: 30
From: John W. Peterson
Speaking of Lisp on the Mac, we have a small version of Utah's PSL
(Portable Standard Lisp) now running on the Mac. For those of you
who don't know about PSL, it is a portable lisp implementation written
almost entirely in itself. Versions of PSL currently run on the Vax,
the Dec-20, IBM mainframes, Cray's, and some 68000 based systems.
It is essentially MIT Mac Lisp derivitive.
The Macintosh PSL has been trimmed down, things like floating point
support and the compiler are not implemented. However, it does
run on 128K machines! The heap is large enough to support educational-
type programs, e.g., 3 pages or so in length. It does have a
garbage collector.
The system takes advantage of the Macintosh window system and has
an editor window and a transcript window (the editor even knows
how to do paren matching...)
We are currently alpha-testing it, and will be using it with lower
division CS classes here at Utah in the next couple weeks. Since
all of our instructional Macs are 128K, ability to run on the
small machine was important.
We are negotiating release to the rest of the world, however it won't be
available for outside distribution for a while yet. We definitly intend on
making a low-cost version available for consortium use.
John W. Peterson (JW-PETERSON@UTAH-20)
-------