Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!NORUNIT.BITNET!HANCHE
From: HANCHE@NORUNIT.BITNET
Newsgroups: comp.lang.scheme
Subject: Re: Status of XScheme
Message-ID: <8809251939.AA03843@BLOOM-BEACON.MIT.EDU>
Date: 25 Sep 88 19:39:53 GMT
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 27

Date: 25 September 1988, 21:05:26 ECT
From: Harald Hanche-Olsen       +47-7-593525         HANCHE   at NORUNIT
To:   scheme@mc.lcs.mit.edu

Recently, Paul Wilson  asked the following
question:

> A while back I heard something about Dave Betz doing a Scheme.
> They called it XScheme 0.3.  Does anybody know what the status
> of this project is, or any details about the actual code?
> (Is it portable? What machines does it run on?, etc.)

The code is written in reasonably portable C.  I know for sure it runs
on IBM PClones, Macs, and Amigas.  The code is posted and occasionally
being discussed on BIX (Byte Information eXchange).  The latest version
(as far as I know) is *very* preliminary, my copy is version 0.07.  A
handful of bugs and lack of reasonable error messages makes it rather
unsuitable for real work at the moment, but a new and improved version
is rumoured to be in the works (though David Betz has been curiously
silent about it lately).

XScheme is based on a bytecode compiler.  Apart from that, its
distinguishing feature is its object oriented extensions, similar to
those of XLisp.

- Harald Hanche-Olsen       Division of Mathematical Sciences
  hanche@norunit.bitnet     The Norwegian Institute of Technology