Programmable microprocessor cache index hashing function
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United States of America Patent
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Oct 12, 2004
Grant Date -
Oct 16, 2003
app pub date -
Apr 15, 2002
filing date -
Apr 15, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An embodiment of the invention provides a circuit and method for optimizing an index hashing function in a cache memory on a microprocessor. A programmable index hashing function is designed that allows the index hashing function to be programmed after the microprocessor has been fabricated. The index hashing function may be 'tuned' by running an application on the microprocessor and observing the performance of the cache memory based on the type of index hashing function used. The index hashing function may be programmed by several methods.
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