发明申请
US20050219897A1 Method and apparatus for providing packed shift operations in a processor
有权
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: US11140454申请日: 2005-05-27
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公开(公告)号: US20050219897A1公开(公告)日: 2005-10-06
- 发明人: Derrick Lin , Punit Minocha , Alexander Peleg , Yaakov Yaari , Millind Mittal , Larry Mennemeier , Benny Eitan
- 申请人: Derrick Lin , Punit Minocha , Alexander Peleg , Yaakov Yaari , Millind Mittal , Larry Mennemeier , Benny Eitan
- 主分类号: G06F7/00
- IPC分类号: G06F7/00 ; G06F5/01 ; G06F7/499 ; G06F7/76 ; G06F9/30 ; G06F9/315 ; G06F9/38 ; G11C16/04
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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