System, circuit, and method for adjusting the prefetch...

Details System, circuit, and method for adjusting the prefetch... System, circuit, and method for adjusting the prefetch...

2006-09-05

2006-09-05

Chan, Eddie (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Branching

C712S207000, C712S239000

Reexamination Certificate

active

07103757

ABSTRACT:
A system, circuit, and method are presented for adjusting a prefetch rate of a prefetch unit from a first rate to a second rate by determining a probability factor associated with a branch instruction. The circuit and method may determine the probability factor based on a type of disparity associated with the branch instruction. The circuit and method may further be adapted to calculate the second rate based on the probability factor. The ability to adjust the prefetch rate of a prefetch unit advantageously decreases the number of memory transactions, thereby decreasing the power consumption of a processing unit.

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The Authoritative Dictionary of IEEE Standards Terms, 7th Ed. Standards Information Network, IEEE Press, 2000.

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