Accession Number:

AD0656771

Title:

THE BBN 940 LISP SYSTEM

Descriptive Note:

Sponsored in part by the DARPA.

Corporate Author:

BOLT BERANEK AND NEWMAN INC CAMBRIDGE MA

Personal Author(s):

• Bobrow, Daniel G.
• Darley, D. Lucille
• Deutsch, L. Peter
• Murphy, Daniel L.
• Teitelman, Warren

Report Date:

1967-07-15

Pagination or Media Count:

138.0

Abstract:

The report describes the LISP system implemented at BBN on the SDS 940 Computer. This LISP is an upward compatible extension of LISP 1.5 for the IBM 7090, with a number of new features which make it work well as an on-line language. These new features include tracing, and conditional breakpoints in functions for debugging and a sophisticated LISP oriented editor. The BBN 940 LISP SYSTEM has a large memory store approximately 50,000 free words utilizing special paging techniques for a drum to provide reasonable computation times. The system includes both an interpreter, a fully compatible compiler, and an assembly language facility for inserting machine code subroutines.

Descriptors:

• *PROGRAMMING LANGUAGES
• ARTIFICIAL INTELLIGENCE
• COMPILERS
• COMPUTERS
• DATA PROCESSING
• MEMORY DEVICES
• SUBROUTINES
• TIME SHARING

Subject Categories:

• Computer Programming and Software
• Computer Hardware
• Computer Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE