发明授权
US5627985A Speculative and committed resource files in an out-of-order processor
失效
乱序处理器中的投机和承诺资源文件
- 专利标题: Speculative and committed resource files in an out-of-order processor
- 专利标题(中): 乱序处理器中的投机和承诺资源文件
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申请号: US177244申请日: 1994-01-04
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公开(公告)号: US5627985A公开(公告)日: 1997-05-06
- 发明人: Michael A. Fetterman , Andrew F. Glew , David B. Papworth , Glenn J. Hinton , Robert P. Colwell
- 申请人: Michael A. Fetterman , Andrew F. Glew , David B. Papworth , Glenn J. Hinton , Robert P. Colwell
- 申请人地址: 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: CA Santa Clara
- 主分类号: G06F9/38
- IPC分类号: G06F9/38 ; G06F9/34
摘要:
A speculative execution out of order processor comprising a reorder circuit containing a plurality of physical registers that buffer speculative execution results for integer and floating-point operations, and a real register circuit containing a plurality of committed state registers that buffer committed execution results for either integer or floating-point operations, depending on the register. The reorder and real register circuits read the speculative and committed source data values for incoming micro-ops, and transfer the speculative and committed source data values over to a micro-op dispatch circuit over a common data path. A retire logic circuit commits the speculative execution results to an architectural state by transferring the speculative execution results from the reorder circuit to the real register circuit.
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