Method and system to pre-fetch compressed memory blocks using pointers
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United States of America Patent
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-
Nov 25, 2003
Grant Date -
Nov 28, 2002
app pub date -
May 22, 2001
filing date -
May 22, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for parallel fetch and decompression of compressed data blocks is disclosed. A method first accesses a table of pointers specifying the location of compressed data to obtain a pointer. Using the pointer, the method reads a pointer in the first block of data, the pointer specifying the location of the next block of compressed data in a chain of compressed data blocks. The method also transfers the rest of the first compressed data block to be decompressed. The method then fetches the next compressed data block using the second pointer while decompressing the first compressed data block. Using a pointer in each successive compressed data block in the chain, the method pre-fetches the next compressed data block while the previous compressed data block is being decompressed.
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