Sciweavers

4 search results - page 1 / 1
» Fast Bit Gather, Bit Scatter and Bit Permutation Instruction...
Sort
View
VLSISP
2008
173views more  VLSISP 2008»
13 years 4 months ago
Fast Bit Gather, Bit Scatter and Bit Permutation Instructions for Commodity Microprocessors
Advanced bit manipulation operations are not efficiently supported by commodity word-oriented microprocessors. Programming tricks are typically devised to shorten the long sequence...
Yedidya Hilewitz, Ruby B. Lee
ISCAS
2006
IEEE
120views Hardware» more  ISCAS 2006»
13 years 10 months ago
Fast bit permutation unit for media enhanced microprocessors
— 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-...
Giorgos Dimitrakopoulos, Christos Mavrokefalidis, ...
ARITH
2007
IEEE
13 years 11 months ago
Performing Advanced Bit Manipulations Efficiently in General-Purpose Processors
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...
Yedidya Hilewitz, Ruby B. Lee
ARITH
2001
IEEE
13 years 8 months ago
Computer Arithmetic-A Processor Architect's Perspective
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 ...
Ruby B. Lee