Instructions and logic to provide atomic range modification operations
US10528345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Oct 11, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/526
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Instructions and logic provide atomic range operations in a multiprocessing system. In one embodiment an atomic range modification instruction specifies an address for a set of range indices. The instruction locks access to the set of range indices and loads the range indices to check the range size. The range size is compared with a size sufficient to perform the range modification. If the range size is sufficient to perform the range modification, the range modification is performed and one or more modified range indices of the set of range indices is stored back to memory. Otherwise an error signal is set when the range size is not sufficient to perform said range modification. Access to the set of range indices is unlocked responsive to completion of the atomic range modification instruction. Embodiments may include atomic increment next instructions, add next instructions, decrement end instructions, and/or subtract end instructions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.