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The Computer Journal 1975 18(4):360-365; doi:10.1093/comjnl/18.4.360
© 1975 by British Computer Society
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Conceptual design of a hardwired main storage management unit

K. Berkling * and W. Kluge *

Gesellschaft für Mathematik und Datenverarbeitung GmbH, 5205 St. Augustin, Schloss Birlinghaven Postfach 1240, Bonn, Germany

This paper is to present the basic concept of a hardwired storage management system. Information about the status of the storage cells is held in two separate bit-planes whose contents are interrogated and updated by a special processor. The system processes requests for the releases of memory space, returning and receiving base addresses, respectively. It operates concurrently to the CPU, thereby relieving the latter of a considerable workload.

The hardware of the processor is designed to accommodate a fast string search algorithm that employs ‘don't care’ states for blockwise addressing of the bit-planes.

Received July 1974.

* Gesellschaft für Mathematik und Datenverarbeitung GmbH, 5205 St. Augustin, Schloss Birlinghaven Postfach 1240, Bonn, Germany


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