Invention Grant
- Patent Title: Meta predictor restoration upon detecting misprediction
- Patent Title (中): 检测错误预测时Meta预测器恢复
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Application No.: US14064900Application Date: 2013-10-28
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Publication No.: US08943298B2Publication Date: 2015-01-27
- Inventor: Stephan Jourdan , Adi Yoaz , Mattan Erez , Ronny Ronen
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: G06F9/00
- IPC: G06F9/00 ; G06F9/44 ; G06F9/38

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
- US20140052972A1 META PREDICTOR RESTORATION UPON DETECTING MISPREDICTION Public/Granted day:2014-02-20
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