Branch target preloading using a multiplexer and hash circuit to reduce incorrect branch predictions
US9519480B2 · kind B2 · utility
0Cited by
7References
12Claims
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Key dates
| Filing date | Feb 11, 2008 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Nov 12, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3806
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system provides complex branch execution hardware and a hardware-based Multiplexer (MUX) to multiplex a fetch address of a future branch and a preloaded branch fetch address to create an index hash value that is used to index a branch target prediction table for execution by a processor core, in order to reduce branch mis-prediction by preloading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.