PSL

Abstract

This paper presents the implementation strategy and current status of a new Portable LISP System, PSL, based upon STANDARD LISP. PSL is written entirely in itself and is compiled with an efficient LISP compiler with machine-oriented optimizations. A full PSL is currently running on a DECSystem-20 and a VAX, and a preliminary version runs on a Motorola MC68000. Versions for a CRAY-1 and an IBM-370 are planned.