Multiple virtual storage control system

Details Multiple virtual storage control system Multiple virtual storage control system

1979-02-22

1982-04-20

Thomas, James D.

Boots, shoes, and leggings

G06F 936, G06F 1300

Patent

active

043262481

ABSTRACT:
A multiple virtual storage control system for a data processing system for handling a plurality of virtual spaces is disclosed. Virtual addresses indicative of addresses in the virtual spaces are translated to real addresses by a translation table. When a new virtual space is established by setting a first address or segment table origin address (STO address) of the translation table, a virtual space number is assigned to the established virtual space by an STO address stack, which comprises a definite number of registers. The number of virtual space numbers assigned is larger than the number of registers. The virtual addresses and the corresponding real addresses are stored in a high-speed address translator so that the virtual addresses are translated to the real addresses at a high speed. When an overflow of the virtual space number assigned in the STO address stack takes place, the plurality of virtual spaces registered in the high-speed address translator are simultaneously purged.

REFERENCES:
patent: 3725874 (1973-04-01), Van-Heel
patent: 4053948 (1977-10-01), Hogan
patent: 4068303 (1978-01-01), Morita
patent: 4096573 (1978-06-01), Heller

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