Advanced bit manipulation operations are not efficiently supported by commodity word-oriented microprocessors. Programming tricks are typically devised to shorten the long sequence...
— Bit and subword permutations are useful in many multimedia and cryptographic applications. New shift and permute instructions have been added to the instruction set of general-...
This paper describes a new basis for the implementation of a shifter functional unit. We present a design based on the inverse butterfly and butterfly datapath circuits that perfo...
The Instruction Set Architecture (ISA) of a programmable processor is the native languageof the machine. It defines the set of operations and resourcesthat are optimized for that ...