Dynamically rewriting branch instructions to directly target an instruction cache location
US8631225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2010 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0875
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Mechanisms are provided for dynamically rewriting branch instructions in a portion of code. The mechanisms execute a branch instruction in the portion of code. The mechanisms determine if a target instruction of the branch instruction, to which the branch instruction branches, is present in an instruction cache associated with the processor. Moreover, the mechanisms directly branch execution of the portion of code to the target instruction in the instruction cache, without intervention from an instruction cache runtime system, in response to a determination that the target instruction is present in the instruction cache. In addition, the mechanisms redirect execution of the portion of code to the instruction cache runtime system in response to a determination that the target instruction cannot be determined to be present in the instruction cache.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.