Direct execution of lisp on a list_directed architecture
Jean‐Paul Sansonnet, M. Castan, Christian Percebois, D. Botella, José Carlos Valle Pérez · 1982
We have defined a direct-execution model dedicated to non-numerical processing which is based upon an internal representation of source programs derived from LISP. This model provides good support for both sophisticated editing (syntactical parsing, tree manipulation, pretty-printing, ...) of conventional languages and artificial intelligence languages. A high level microprogramming language (LEM) was designed to write the interpreters and the editors. A hardware processor was built and a LISP interpreter, microprogrammed in LEM, has been operational since September 1980.