Vector compare-and-exchange operation
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United States of America Patent
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Mar 31, 2015
Grant Date -
Jun 23, 2011
app pub date -
Dec 22, 2009
filing date -
Dec 22, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A vector compare-and-exchange operation is performed by: decoding by a decoder in a processing device, a single instruction specifying a vector compare-and-exchange operation for a plurality of data elements between a first storage location, a second storage location, and a third storage location; issuing the single instruction for execution by an execution unit in the processing device; and responsive to the execution of the single instruction, comparing data elements from the first storage location to corresponding data elements in the second storage location; and responsive to determining a match exists, replacing the data elements from the first storage location with corresponding data elements from the third storage location.
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