发明授权
US06889313B1 Selection of decoder output from two different length instruction decoders
有权
从两个不同长度的指令解码器中选择解码器输出
- 专利标题： Selection of decoder output from two different length instruction decoders
- 专利标题（中）： 从两个不同长度的指令解码器中选择解码器输出
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申请号： US09563634申请日： 2000-05-02
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公开(公告)号： US06889313B1公开(公告)日： 2005-05-03
- 发明人: Andrew Cofler , Stéphane Bouvier , Laurent Wojcieszak
- 申请人： Andrew Cofler , Stéphane Bouvier , Laurent Wojcieszak
- 申请人地址： FR Gentilly
- 专利权人： STMicroelectronics S.A.
- 当前专利权人： STMicroelectronics S.A.
- 当前专利权人地址： FR Gentilly
- 代理机构： Wolf, Greenfield & Sacks, P.C.
- 代理商 Lisa K. Jorgenson; James H. Morris
- 优先权： EP99410049 19990503
- 主分类号： G06F9/30
- IPC分类号： G06F9/30 ; G06F9/318 ; G06F9/32 ; G06F9/38
摘要：
A decode unit comprises first and second decoders respectively connected to receive bit sequences of first and second predetermined lengths. The first and second decoders operate in parallel to generate respective outputs. A switch selects one of the outputs in dependence on an instruction mode of the processor which governs the length of the bit sequence which is actually required to be decoded.
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