Method and apparatus for maintaining a time order by physical ordering in a memory
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United States of America Patent
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Jan 16, 2001
Grant Date -
N/A
app pub date -
Dec 18, 1997
filing date -
Dec 18, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A method and arrangement for maintaining a time order of entries in a memory determines a row in which the entry will be stored, the memory being logically divided into rows and columns. The columns are arranged sequentially in each row from the newest to the oldest. Once the row in which the entry will be stored is determined, the entry is stored in that row in the column (or entry location) that is the newest column. The entry that was previously in the newest column is shifted to the next older column, and the entry that was previously in the next older column is shifted to the next most older column, etc. If a row is completely filled prior to the writing of a new entry, then the entry in the oldest column is removed from the memory and the other entries shifted.
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