Bernadine C. Lanzano
Abstract
The overlay capability is described for four of the third generation computer systems: CDC-6000, GE-635, IBM-360, and UNIVAC-1108. A critique of the first three sytems is based on actual experience with a large overlaid trajectory simulation program; a short history and description of this program is presented. A standardization of minimum capabilities for loaders is recommended so that programs which must operate under more than one computer system may be easily converted and maintained. A proposal that overlay software incorporates a memory occupation specification concept instead of the conventional tree structure is delineated. This concept provides more efficient and cost-effective utilization of the memory as well as increasd flexibility in program structure.
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Digital Library
- 1b USA Standard for Fortran, Document X3.9-1966, U.S.A. Standards Institute, 10 E. 40th Street, New York, N.Y., 10017.Google Scholar
- 1c USA Standard for Basic Fortran, Document X.3.10-1966, U.S.A. Standards Institute, 10 E. 40th Street, New York, 10017.Google Scholar
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- 4 IBM 7090/7094 IBSYS Operating System, Version 13 IBJOB Processor, IBM Systems Reference Library, File No. 7090-27, Form C28-6389-2, Rev. Mar. 1966.Google Scholar
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Index Terms
- Loader standardization for overlay programs
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