Method and apparatus for data compression and decompression for a data processor system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 19, 2002
Grant Date -
Apr 11, 2002
app pub date -
Nov 5, 2001
filing date -
Apr 19, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
During a compressing portion, memory (20) is divided into cache line blocks (500). Each cache line block is compressed and modified by replacing address destinations of address indirection instructions with compressed address destinations. Each cache line block is modified to have a flow indirection instruction as the last instruction in each cache line. The compressed cache line blocks (500) are stored in a memory (858). During a decompression portion, a cache line (500) is accessed based on an instruction pointer (902) value. The cache line is decompressed and stored in cache. The cache tag is determined based on the instruction pointer (902) value.
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