Patent · US Active

Method and apparatus for predicting branches using a meta predictor

US8285976B2 · kind B2 · utility

2Cited by

17References

26Claims

0Family size

Assignee

Micron Technology, Inc. · US

Inventors

Stephan Jourdan · Portland, US
Adi Yoaz · Austin, US
Mattan Erez · Haifa, IL
Ronny Ronen · Haifa, IL

Key dates

Filing date	Dec 28, 2000
Grant date	Oct 9, 2012
Priority date	—
Expiry date	Oct 9, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/3848
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A branch predicting apparatus is disclosed that reduces branch mispredictions in a processor. The branch prediction apparatus includes a base misprediction history register. The branch prediction apparatus includes a meta predictor that receives an index value and a branch prediction to generate a misprediction value in accordance with the base misprediction history register. The branch prediction apparatus also includes a logic gate that receives the branch prediction and the misprediction value to generate a final prediction. The final prediction may be used to predict whether a branch is taken or not taken.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.