cph@ALTDORF.AI.MIT.EDU ("Chris Hanson") (12/28/90)
There have been numerous requests regarding the use of MIT Scheme 7.0
on various machines, particularly Sun 4. Although I've just posted
the patches for the Sun 4, I thought I'd pass the following along as
well.
MIT Scheme 7.1 is very close to release -- we plan to make it
available before the end of the year (yes, that's only a few days from
now!), as a beta test for a small variety of architectures.
Specifically:
HP 9000 series 300/800, HP-UX 7.0
Sun 3/4, SunOS 4.1
DECStation 3100/5100, Ultrix 4.0
Native-code compilation is supported on all of these machines except
the Sun 4 (there are no plans to port the compiler to that machine).
More architectures will follow in the near future, and in particular
we plan to revive the Vax implementation.
For this release, we are committed to a short period of beta test, to
be followed by a full release sometime in the first quarter of 1991.
Once the software is fully released, it will be possible to obtain it
on tapes from us for $200.
The new release features full compliance with R3.99RS, particularly
arithmetic, plus significant improvements in several other areas. The
reference manual has been completely revised, and there is a new
user's manual. All of the manuals are written in Texinfo, and are
available in source, DVI, PostScript, or info format.
In a few days I will make a formal announcement, at which time this
release will be available by anonymous ftp.cph@altdorf.ai.mit.EDU ("Chris Hanson") (01/09/91)
MIT Scheme release 7.1 is now available for beta test.
These are the highlights of the release:
* New arithmetic is fully compatible with R4RS and the IEEE Scheme
Standard.
* Revised and updated "Reference Manual".
* New "User's Manual" documents how to start and stop Scheme, how to
use interrupt characters, how to run Scheme under GNU Emacs, how to
run Edwin.
* New command-line options and environment variables; see the "User's
Manual" for details.
* Most machines now provide 26-bit addresses; the last release
provided only 24 bits.
* Edwin now uses termcap instead of curses, has greatly improved
performance, is more like GNU Emacs, and supports multiple X
windows.
This release is compliant with the (not-quite-published) IEEE Scheme
Standard, with one exception: #f and the empty list are the same
object. This will be fixed in the near future to make MIT Scheme
fully compliant.
The release is immediately available for the following systems:
HP 9000 series 300/400/800 running HP-UX 7.0
DECStation 3100/5100 running Ultrix 4.0
Sun 3/4 running SunOS 4.1
In addition, we will have the following in a few days:
NeXT running NeXT OS 2.0
This release may be obtained by anonymous ftp from
"altdorf.ai.mit.edu" (internet address 18.43.0.246), from the
directory "pub/scheme-7.1/". See the README file in that directory
for further directions.
We will not be mailing tapes of this release until the beta test has
finished and the full release is out; however if you show up at MIT
with a 9-track magtape we'll be happy to put the software on it.
As usual, report bugs to
bug-cscheme@zurich.ai.mit.edu
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