Maintaining extended and traditional states of a processing unit in task switching
US6526431B1 · kind B1 · utility
5Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1999 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Feb 26, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/30043
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a method and apparatus for switching first and second tasks in an operating system. The first and second tasks each have first and second traditional states and first and second extended states, in a processing unit. The method comprises: (a) saving the first traditional and extended states from the processing unit to a buffer; (b) updating the buffer by replacing the first extended state by the second extended state; and (c) restoring the first traditional state and the second extended state in the processing unit from the updated buffer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.