Store-to-load forwarding buffer using indexed lookup
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United States of America Patent
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Jan 22, 2008
Grant Date -
Jan 13, 2005
app pub date -
Jul 8, 2003
filing date -
Jul 8, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A microprocessor may include a dispatch unit configured to dispatch load and store operations and a load store unit configured to store information associated with load and store operations dispatched by the dispatch unit. The load store unit includes a STLF (Store-to-Load Forwarding) buffer that includes a plurality of entries. The load store unit is configured to generate an index dependent on at least a portion of an address of a load operation, to use the index to select one of the plurality of entries, and to forward data included in the one of the plurality of entries as a result of the load operation.
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