Hybrid branch prediction using a global selection counter...

Details Hybrid branch prediction using a global selection counter... Hybrid branch prediction using a global selection counter...

2005-08-30

2005-08-30

Coleman, Eric (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Branching

Reexamination Certificate

active

06938151

ABSTRACT:
A microprocessor and method for branch prediction selection provides the capability to select among multiple direction based history arrays for a single branch. A global selection counter when used in conjunction with a Prediction Method Comparison Table (PMCT) allows for branch direction accuracy to be improved on cold starts and context switches while maintaining high accuracy on long running code while minimizing silicon area and reducing power requirements.

REFERENCES:
patent: 5758142 (1998-05-01), McFarling et al.
patent: 6550004 (2003-04-01), Henry et al.
patent: 6604190 (2003-08-01), Tran
patent: 6738897 (2004-05-01), Talcott
patent: 6792524 (2004-09-01), Peterson et al.

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