MACLISP is a dialect of the LISP Programming Language that ran on DEC PDP10 and Honeywell Multics in the 1970’s and early 1980’s.

MACLISP had a heavy influence on the design of Zetalisp (Lisp Machine Lisp) and Common Lisp.

The name “MACLISP” is from MIT’s Project MAC, later renamed to the “Laboratory for Computer Science” (LCS). Project MAC long pre-dates and has no relation whatsoever to the Apple Macintosh.

The long-awaited, comprehensive summary of MACLISP, a webbed version of Kent Pitman’s The Revised Maclisp Manual, is finally available.

Using MACLISP

To run MACLISP today, you'll want to create or locate a PDP-10 emulator. See the PDP-10/its repo on github.

That repo has a README file, although not one specific to MACLISP. Still, it's a place to find community and to get started.

See also issue #689 where the issue of enhancing the README has been discussed.

This site is maintained by Kent M. Pitman
HyperMeta Inc.