发明授权
- 专利标题: Method and system for front-end gathering of store instructions within a data-processing system
- 专利标题(中): 数据处理系统中存储指令前端收集的方法和系统
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申请号: US837519申请日: 1997-04-14
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公开(公告)号: US5940611A公开(公告)日: 1999-08-17
- 发明人: Ravi Kumar Arimilli , John Steven Dodson , Jerry Don Lewis
- 申请人: Ravi Kumar Arimilli , John Steven Dodson , Jerry Don Lewis
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: G06F9/312
- IPC分类号: G06F9/312 ; G06F9/38 ; G06F9/30
摘要:
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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