发明申请
- 专利标题: OPERAND FETCHING CONTROL AS A FUNCTION OF BRANCH CONFIDENCE
- 专利标题(中): 操作控制作为分支机构的功能
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申请号: US12822379申请日: 2010-06-24
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公开(公告)号: US20110320774A1公开(公告)日: 2011-12-29
- 发明人: Christian Jacobi , Barry W. Krumm , Brian R. Prasky , Martin Recktenwald , Chung-Lung K. Shum , Charles F. Webb , Joshua M. Weinberg
- 申请人: Christian Jacobi , Barry W. Krumm , Brian R. Prasky , Martin Recktenwald , Chung-Lung K. Shum , Charles F. Webb , Joshua M. Weinberg
- 申请人地址: US 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: US NY Armonk
- 主分类号: G06F9/38
- IPC分类号: G06F9/38
摘要:
A system for data operand fetching control includes a computer processor that includes a control unit for determining memory access operations. The control unit is configured to perform a method. The method includes calculating a summation weight value for each instruction in a pipeline, the summation weight value calculated as a function of branch uncertainty and a pendency in which the instruction resides in the pipeline relative to other instructions in the pipeline. The method also includes mapping the summation weight value of a selected instruction that is attempting to access system memory to a memory access control, each memory access control specifying a manner of handling data fetching operations. The method further includes performing a memory access operation for the selected instruction based upon the mapping.
公开/授权文献
- US09411599B2 Operand fetching control as a function of branch confidence 公开/授权日:2016-08-09
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