Qualcomm Incorporated

Abdulhameed A Manadath

Michael Scott McIlvaine

Anthony Dale Klein

A processor having a unidirectional rotator configured to shift or rotate data in one direction is disclosed. The processor also includes a control unit having logic configured to modify a shift value specified by a registered-based shift, or rotate, instruction in an opposite direction, the modified shift value being usable by the rotator to shift, or rotate, the data in the one direction, and thereby, generate the same result as if the data in the rotator had otherwise been shifted, or rotated, in the opposite direction by the shift value originally specified by the registered-based instruction. The control unit is further configured to bypass the logic and provide to the rotator a shift value specified by a register-based instruction to shift, or rotate, the data in the one direction.

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Cary, NC, United States of America

Abdulhameed A Manadath