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In current super scalar processors, branch target buffer (BTB) is an important component for predicting branch target addresses. In deeper pipelines and large windows, BTB mis-prediction increases penalty. Hence, increasing the accuracy of BTB prediction became more important for enhancing the performance in current processors. This paper proposes a novel BTB that separates current BTB into conditional...
Modern Super scalar Processor squashes up all of wrong-path instructions when the branch prediction misses. In deeper pipelines, branch miss prediction penalty increases seriously owing to large number of squashed instructions. Exploiting control independence has been proposed for reducing this penalty. Control Independence method reuses control independent instructions (CI instructions) without squashing...
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