Graphics
Abstract
With the exception of the tablet multiplexer and interprocessor interrupt boards, all Laboratory-built hardware for the Terminal Support Processor (TSP) system has been successfully integrated. While the manufacturer has yet to install the last of a series of modifications to the Meta 4 system, hardware performance and reliability appear adequate to support active software development and system checkout. Simple test programs have been sent from TX-2 to the TSP via the ARPA network and operated satisfactorily. A design change in the LIL language has replaced the implicit data segment with a return stack as a means of providing local storage for subroutines. The necessary changes have been incorporated in the firmware. A strategy for TSP main and disk memory management has been worked out which utilizes a feature of the disk controller design to effect garbage collection while swapping user programs. Network software for the IBM 360/67 was certified as conforming to network standards on 20 July 1971. Designs have been worked out for the TX-2 Speech Data Base and a sub-operating system called the Speech Processing Controller. The BCPL compiler for TX-2 has been extended to handle previously discussed structure definitions, and a symbolic debugging system for BCPL programs is being developed. A scan converter display system on TX-2 shows promise for the presentation of speech spectrograms and other gray level displays.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 1971
- Accession Number
- AD0735326
Entities
People
- James W. Forgie
Organizations
- Massachusetts Institute of Technology