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12-7-88-notes.txt
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1988-12-11
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Copyright (c) Xerox Corporation 1988. All rights reserved.
These notes correspond to the "12/7/88 Can't think of a cute name PCL"
version of PCL.
Please read this entire file carefully. You may also be interested in
looking at previous versions of the notes.text file. These are called
xxx-notes.text where xxx is the version of the PCL system the file
corresponds to. At least the last two versions of this file contain
useful information for any PCL user.
This version of PCL has been tested at PARC in the following Common
Lisps:
Symbolics 7.2
Coral 1.2
Lucid 3.0
KCL (October 15, 1987)
Allegro 3.0.1
These three should work, but haven't been tested just yet.
EnvOS Medley
TI
The notes file hasn't yet been fleshed out yet.
The two major changes in this release are:
- The generic function cache algorithm has been revised. In addition
generic function caches now expand automatically. Programs that used
to run into problems with lots of cache misses shouldn't run into
those problems anymore.
- the DEFCONSTRUCTOR hack now works. Please see the construct.lisp
file for details. If you are consing lots of instances, you may be
able to get a tremendous performance boost by using this hack.
Another important change is that this version includes some KCL patches
which dramatically improve PCL performance in KCL. See the kcl-mods.text
file for more details.