发明授权
US07979682B2 Method and system for preventing livelock due to competing updates of prediction information
有权
由于预测信息的竞争更新而防止活动锁定的方法和系统
- 专利标题： Method and system for preventing livelock due to competing updates of prediction information
- 专利标题（中）： 由于预测信息的竞争更新而防止活动锁定的方法和系统
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申请号： US12051322申请日： 2008-03-19
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公开(公告)号： US07979682B2公开(公告)日： 2011-07-12
- 发明人: Erik R. Altman , Vijayalakshmi Srinivasan
- 申请人： Erik R. Altman , Vijayalakshmi Srinivasan
- 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
- 代理机构： Yee & Associates, P.C.
- 代理商 William Stock
- 主分类号： G06F9/30
- IPC分类号： G06F9/30
摘要：
A system to prevent livelock. An outcome of an event is predicted to form an event outcome prediction. The event outcome prediction is compared with a correct value for a datum to be accessed. An instruction is appended with a real event outcome when the outcome of the event is mispredicted to form an appended instruction. A prediction override bit is set on the appended instruction. Then, the appended instruction is executed with the real event outcome.
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