On-demand allocation of cache memory for use as a preset buffer
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United States of America Patent
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Feb 18, 2014
Grant Date -
Oct 3, 2013
app pub date -
Apr 2, 2012
filing date -
Apr 2, 2012
priority date (Note) -
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Abstract
A data processing system comprises data processing circuitry, a cache memory, and memory access circuitry. The memory access circuitry is operative to assign a memory address region to be allocated in the cache memory with a predefined initialization value. Subsequently, a portion of the cache memory is allocated to the assigned memory address region only after the data processing circuitry first attempts to perform a memory access on a memory address within the assigned memory address region. The allocated portion of the cache memory is then initialized with the predefined initialization value.
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