Identification and correction of cyclically recurring errors in one or more branch predictors
US7925871B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Feb 19, 2008 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jun 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0751
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing apparatus 2 is provided with one or more branch predictors 10 for generating branch predictions. A supervising predictor 12 is responsive to at least a stream of branch predictions to identify one or more cyclically recurring errors in the branch predictors and generate corrected behaviours for a prefetch unit 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.