Method for locking and unlocking a computer address
US5276847A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Jul 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2209/521
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for locking and unlocking a computer address is described. A separate instruction for locking is read. A first value is assigned to a flag to indicate that locking has been requested. An instruction that uses the address is executed. The address is locked such that the address can be accessed by the processor and not by any other processor. A separate instruction for unlocking is read. A second value is assigned to a flag to indicate that unlocking has been requested. A load instruction or a store instruction is executed. The address is unlocked such that the address can be accessed by the processor and by at least one other processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.