Electrical computers and digital processing systems: processing – Processing control – Branching
Reexamination Certificate
2006-12-19
2006-12-19
Treat, William M. (Department: 2181)
Electrical computers and digital processing systems: processing
Processing control
Branching
C712S219000
Reexamination Certificate
active
07152155
ABSTRACT:
When a branch misprediction in a pipelined processor is discovered, if the mispredicted branch instruction is not the last uncommitted instruction in the pipelines, older uncommitted instructions are checked for dependency on a long latency operation. If one is discovered, all uncommitted instructions are flushed from the pipelines without waiting for the dependency to be resolved. The branch prediction is corrected, and the branch instruction and all flushed instructions older than the branch instruction are re-fetched and executed.
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Bridges Jeffrey Todd
Dieffenderfer James Norris
McIlvaine Michael Scott
Sartorius Thomas Andrew
Brown Charles D.
Pauley Nicholas J.
Qualcomm Incorporated
Treat William M.
Wadsworth Philip R.
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