Date   : Tue, 18 Feb 1986 11:02:00 PST
From   : Ghenis.pasa@XEROX.ARPA
Subject: XLISP 1.2 header file (warning)

Don't bother with XLISP 1.2 under CP/M. It is simply too big and it
doesn't make sense to try to run it since it leaves practically no space
for lists. I received a similar warning a few months ago and still went
ahead (I had to convince myself). It is so bad that after starting XLISP
1.2 all you can do is 5 or 6 conses or appends using small lists before
you get an 'out of memory' error message, so it is truly USELESS (under
CP/M that is). XLISP keeps getting bigger (and better) and any version
after 1.1 is really meant to be used on an MS-DOS system with a lot of
memory.

If you must have a PD LISP for CP/M, use XLISP 1.1, which is smaller and
will leave you some more room to play around. It is less standard than
later versions, with a C flavor, but it will manipulate lists for you.