Virtual copying scheme for creating multiple versions of state information
US7404056B1 · kind B1 · utility
8Cited by
1References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2005 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Jun 15, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3888
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.