System and method for branch misprediction prediction using a mispredicted branch table having entry eviction protection
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United States of America Patent
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Nov 13, 2012
Grant Date -
Nov 19, 2009
app pub date -
May 28, 2009
filing date -
Dec 19, 2006
priority date (Note) -
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Abstract
A system is disclosed for providing branch misprediction prediction in a microprocessor. The system includes a mispredicted branch table that includes address, distance, and true/not true fields, and an index to the mispredicted branch table that is formed responsive to 1) a current mispredicted branch, 2) a global history, 3) a global misprediction history, and 4) a branch misprediction distance.
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