Method and system for front-end and back-end gathering of store

Details Method and system for front-end and back-end gathering of store Method and system for front-end and back-end gathering of store

1997-04-14

1999-09-21

Eng, David Y.

G06F 930

Patent

active

059565039

ABSTRACT:
A method and system for front-end and back-end gathering of store instructions within a processor is disclosed. In accordance with the method and system of the present invention, the store queue includes a front-end queue and a back-end queue. 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. If so, the store instruction in the subsequent second entry is collapsed into the store instruction in the first entry. Concurrently, in response to a determination that the data field of the last entry of the back-end queue is not filled completely with data, another determination is made as to whether or not an address for a store instruction in a subsequent entry is equal to an address for the store instruction in the last entry plus a byte count in said last entry. If so, the two store instructions are combined into one bus transfer.

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patent: 5615402 (1997-03-01), Quattromani et al.

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