Prefetch buffer method and apparatus
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United States of America Patent
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May 17, 2005
Grant Date -
Apr 1, 2004
app pub date -
Sep 30, 2002
filing date -
Sep 30, 2002
priority date (Note) -
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Abstract
Methods and apparatus are provided for supplying data to a processor in a digital processing system. The method includes holding data required by the processor in a cache memory, supplying data from the cache memory to the processor in response to processor requests, performing a cache line fill operation in response to a chache miss, supplying data from a prefetch buffer to the cache memory in response to the cache line fill operation, and speculatively loading data from a lower level memory to the prefetch buffer in response to the cache line fill operation.
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