发明授权
US07451169B2 Method and apparatus for providing packed shift operations in a processor
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用于在处理器中提供打包移位操作的方法和装置
- 专利标题: Method and apparatus for providing packed shift operations in a processor
- 专利标题(中): 用于在处理器中提供打包移位操作的方法和装置
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申请号: US11454749申请日: 2006-06-15
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公开(公告)号: US07451169B2公开(公告)日: 2008-11-11
- 发明人: Derrick Chu Lin , Punit Minocha , Alexander D. Peleg , Yaakov Yaari , Millind Mittal , Larry M. Mennemeier , Benny Eitan
- 申请人: Derrick Chu Lin , Punit Minocha , Alexander D. Peleg , Yaakov Yaari , Millind Mittal , Larry M. Mennemeier , Benny Eitan
- 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 Lawrence M. Mennemeier
- 主分类号: G06F5/01
- IPC分类号: G06F5/01
摘要:
A method and apparatus for providing, in a processor, a shift operation on a packed data element having multiple values. The apparatus having multiple muxes, each of the multiple muxes having a first input, a second input, a select input and an output. Each of the multiple bits that represent a shifted packed intermediate result on a first bus is coupled to the corresponding first input. Each of the multiple bits representing a replacement bit for one of the multiple values is coupled to a corresponding second input. Each of the multiple bits driven by a correction circuit is coupled to a corresponding select input. Each output corresponds to a bit of a shifted packed result.
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