HYPERVECTOR-BASED BRANCH PREDICTION
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United States of America Patent
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Issued Date -
Nov 9, 2017
app pub date -
May 4, 2017
filing date -
May 6, 2016
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Abstract
Systems and methods are directed to hypervector-based branch prediction. For a branch instruction whose direction is to be predicted, a taken distance between a current hypervector and a taken hypervector and a not-taken distance between the current hypervector and a not-taken hypervector is determined, wherein the current hypervector comprises an encoding of context of the branch instruction, the taken hypervector comprises an encoding of context of taken branch instructions and the not-taken hypervector comprises an encoding of context of not-taken branch instructions. If the taken distance is less than the not-taken distance, the branch instruction is predicted to be taken, or on the other hand, if the not-taken distance is less than the taken distance, the branch instruction is predicted to be not-taken.
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