发明名称 |
Method and apparatus for performing rotate operations using cascaded multiplexers |
摘要 |
A method and apparatus performing rotate operations using cascaded multiplexers provides a scalable rotator circuit having a sub-field rotate capability that requires no additional interconnects at the sub-field endpoints. The rotator performs bit field swap operations at each stage of a series of cascaded multiplexers. The bit field size increases monotonically from a single bit to half of the rotator operand size. The control logic selects swap operations for each individual bit field at each stage, in order to arrange a desired rotated output vector.
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申请公布号 |
US6675182(B1) |
申请公布日期 |
2004.01.06 |
申请号 |
US20000649446 |
申请日期 |
2000.08.25 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HOFSTEE H. PETER;NGO HUNG C.;NOWKA KEVIN J.;SAWADA JUN |
分类号 |
G06F5/01;G06F7/76;(IPC1-7):G06F15/00 |
主分类号 |
G06F5/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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