Arrangement for converting virtual addresses into physical addre

Details Arrangement for converting virtual addresses into physical addre Arrangement for converting virtual addresses into physical addre

1978-08-14

1981-07-14

Thesz, Joseph M.

Boots, shoes, and leggings

G06F 920

Patent

active

042790140

ABSTRACT:
An arrangement for dynamically translating virtual address into absolute or physical addresses of items of data. Each virtual address includes a segment table number, a segment table entry, and a segment page number. Segment descriptors are stored in a central memory. The address of a particular segment descriptor may be calculated from the segment table number and the segment table entry. From the segment descriptor, a unique identification termed a logic page number may be calculated. The logic page number permits pseudo-associative access to a table containing a number of entries proportional to the number of physical pages of the main memory, allowing the physical address to be determined.

REFERENCES:
patent: 3394350 (1968-07-01), Packard
patent: 3778776 (1973-12-01), Hakozaki
patent: 3902163 (1975-08-01), Amdahl et al.
patent: 3970999 (1976-07-01), Elward
patent: 4092715 (1978-05-01), Scriver
patent: 9510847 (1970-05-01), Carlson et al.

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