Virtual copying scheme for creating multiple versions of...

Details Virtual copying scheme for creating multiple versions of... Virtual copying scheme for creating multiple versions of...

2008-07-22

2008-07-22

Nguyen, Hiep T (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S162000

Reexamination Certificate

active

07404056

ABSTRACT:
State information in a processor is managed using a lookup table that has multiple memory circuits, each with multiple entries. Items of state information belonging to a current state version are stored in a first group of entries in the memory circuits. To create an updated state version, a virtual copy of each of the items of state information is created in a second group of entries in the memory circuits, and the virtual copy of the item being updated is replaced with a real copy of the item from the first group of entries. The item in the first group of entries is then updated.

REFERENCES:
patent: 6897871 (2005-05-01), Morein

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