Memory protection system using capability registers

Details Memory protection system using capability registers Memory protection system using capability registers

1980-09-29

1983-10-04

Gruber, Felix D.

Boots, shoes, and leggings

364900, G06F 1100

Patent

active

044082746

ABSTRACT:
The use of protected capability registers to hold the physical base and limit addresses and access rights for a block of memory and the way in which such registers are loaded using System Capability Tables and reserved segment pointer tables is well known in the prior art. In the present invention the normal capability load instruction has been enhanced in four major ways:

REFERENCES:
patent: 3771146 (1973-11-01), Cotton et al.
patent: 3778776 (1973-12-01), Hakozaki
patent: 3787813 (1974-01-01), Cole et al.
patent: 3814919 (1974-06-01), Repton et al.
patent: 3905023 (1975-09-01), Perpiglia
patent: 4121286 (1978-10-01), Venton
Requa, Joseph E., "Virtual Memory Design Reduces Program Complexity" Computer Design, Jan. 1978, pp. 97-106.

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