Patent
1997-04-14
1999-08-17
Eng, David Y.
G06F 930
Patent
active
059406119
ABSTRACT:
A method and system for front-end gathering of store instructions within a processor is disclosed. In accordance with the method and system of the present invention, a store queue within a data-processing system includes a front-end queue and a back-end queue. Multiple entries are provided in the back-end queue, and each entry includes an address field, a byte-count field, and a data field. A determination is first made as to whether or not a data field of a first entry of the front-end queue is filled completely. In response to a determination that the data field of the first entry of the front-end queue is not filled completely, another determination is made as to whether or not an address for a store instruction in a subsequent second entry is equal to an address for the store instruction in the first entry plus a byte count in the first entry. In response to a determination that the address for the store instruction in the subsequent second entry is equal to the address for the store instruction in the first entry plus the byte count in the first entry, the store instruction in the subsequent second entry is collapsed into the store instruction in the first entry.
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Arimilli Ravi Kumar
Dodson John Steven
Lewis Jerry Don
Dillon Andrew J.
Eng David Y.
Henkler Richard A.
International Business Machines - Corporation
Ng Antony P.
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