| 摘要 |
Systems and techniques are disclosed relating to shifting a plurality of input data bits to the left or right by a number of bit positions as a function of a binary value of a plurality of shift control bits. A first shifter element may be configured to perform one of two shifting operations on the input data bits to produce a plurality of first output bits, a first one of the shift control bits being used to select the shifting operation performed by the first shifter element. A second shifter element may be configured to perform at least one shifting operation on the first output bits to produce a plurality of second output bits, each of said at least one shifting operation being selectable from two shifting operations, a different one of the shift control bits being used to select each of said at least one shifting operation performed by the second shifter element. A third shifter element may be configured to perform one of two shifting operations on the second output bits, a second one of the shift control bits being used to select the shifting operation performed by the third shifter element.
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