| 摘要 |
A branch prediction architecture is disclosed, having a branch predictor, a target address register, first and second multiplexors, a cache memory, and a trace cache. The branch predictor may advantageously be a series-parallel branch predictor, and alternatively may be a serial-BLG branch predictor or a choosing branch predictor. The first multiplexor receives an input from the target address register, and provides an output to the cache memory. The cache memory receives output from both the branch predictor and the first multiplexor, and provides an output to the second multiplexor. The trace cache receives the output from the branch predictor, and provides an output received by the second multiplexor. The second multiplexor, receiving input from both the trace cache and the cache memory, outputs branch predictions and instruction bundles.
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