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Author Spacek, Thomas R.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Linkage editor ♦ Segmentation ♦ Overlay structure ♦ Virtual memory ♦ Paging ♦ Collector ♦ Loader ♦ Overlay ♦ Folding ♦ Segment
Abstract Many computer systems solve executable storage size problems for large programs by using overlays. However, it appears that no one overlay scheme contains a well-balanced combination of the most useful capabilities which are found in various existing techniques. A proposal is presented which utilizes several of the best capabilities from existing schemes and is complemented by several additional features, e.g. writable overlays. The writable overlay capability provides a virtual memory effect, although the programmer may still be required to design the overlay configuration. Since overlay structuring is a complex task, several tools (including a graphic display) are included in the proposal in order to aid the programmer in the design. The content of overlays is briefly discussed, and it is noted that many of the details of the final overlay configuration may be decided after the fact.
Description Affiliation: Central Intelligence Agency, Washington, DC (Spacek, Thomas R.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 15
Issue Number 6
Page Count 6
Starting Page 421
Ending Page 426


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Source: ACM Digital Library