GRAPHICS.
Abstract
Software design for the Terminal Support Processor (TSP) system has concentrated on the specification of a language called LIL (for Local Interaction Language). Designed for interpretation by a micro-processor in the TSP system, LIL is a general-purpose language with primitives for manipulating display structures and handling message-oriented input-output. The user specifications for LIL are now available and are presented here in considerable detail. A new mechanism for triggering a user program at interrupt level has been implemented on TX-2. The mechanism uses signals derived from hardware devices which can monitor the state of TX-2 control registers. An experimental interactive program has been written to illustrate one application area for the new facility: software measurement. A new character generator has been installed on TX-2. The storage scope editor on TX-2 has been refined and extended on the basis of user experience. Cursor visibility has been improved by flashing the cursor at a rate of six per second. The Basic Combined Programming Language (BCPL) compiler on TX-2 has been optimized. An overall compilation speed improvement of 374 percent has been achieved in part by making use of the new performance measurement tools now available. An on-line documentation system has been developed for preparing, editing, and presenting system documentation on a variety of output devices. On-line documentation is now available for many parts of the TX-2 system
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1970
- Accession Number
- AD0709187
Entities
People
- James W. Forgie
Organizations
- Massachusetts Institute of Technology