发明授权
- 专利标题: Stopping replay tornadoes
- 专利标题(中): 停止重播龙卷风
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申请号: US10039588申请日: 2001-12-31
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公开(公告)号: US06952764B2公开(公告)日: 2005-10-04
- 发明人: David J. Sager , Stephan Jourdan , Per Hammarlund
- 申请人: David J. Sager , Stephan Jourdan , Per Hammarlund
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理商 Ami Patel Shah
- 主分类号: G06F9/30
- IPC分类号: G06F9/30 ; G06F9/38 ; G06F9/40 ; G06F15/00
摘要:
A method for stopping replay tornadoes in a processor. The method of one embodiment comprises scheduling an instruction for execution speculatively. A determination is made whether the instruction executed correctly. The instruction is routed to a replay mechanism if the instruction did not execute correctly. A determination is made whether a replay tornado exists. The instruction is routed for re-execution if the instruction executed incorrectly and no replay tornado exists. Breaking the replay tornado if the replay tornado exists. Replay safe instructions in the pipeline are retired. Non-replay safe instructions in the pipeline are marked for re-execution. The non-replay safe instructions are rescheduled for re-execution.
公开/授权文献
- US20030126405A1 Stopping replay tornadoes 公开/授权日:2003-07-03
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