Invention Grant
US08943298B2 Meta predictor restoration upon detecting misprediction 有权
检测错误预测时Meta预测器恢复

Meta predictor restoration upon detecting misprediction
Abstract:
Methods and apparatus for restoring a meta predictor system upon detecting a branch or binary misprediction, are disclosed. An example apparatus may include a base misprediction history register to store a set of misprediction history values each indicating whether a previous branch prediction taken by a previous branch instruction was predicted correctly or incorrectly. The apparatus may comprise a meta predictor to detect a branch misprediction of a current branch prediction based at least in part on an output of the base misprediction history register. The meta predictor may restore the base misprediction history register based on the detecting of the branch misprediction. Additional apparatus, systems, and methods are disclosed.
Public/Granted literature
Information query
Patent Agency Ranking
0/0