Fast and Accurate Instruction Fetch and Branch Prediction

  title={Fast and Accurate Instruction Fetch and Branch Prediction},
  author={Brad Calder and Dirk Grunwald},
Accurate branch prediction is critical to performance; mispredicted branches mean that ten's of cycles may be wasted in superscalar architectures. Architectures combining very effective branch prediction mechanisms coupled with modified branch target buffers (BTB's) have been proposed for wide-issue processors. These mechanisms require considerable processor resources. Concurrently, the larger address space of 64-bit architectures introduce new obstacles and opportunities. A larger address… CONTINUE READING
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