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Subword Permutation Instructions for Two-Dimensional Multimedia Processing in MicroSIMD Architectures

12 years 17 days ago
Subword Permutation Instructions for Two-Dimensional Multimedia Processing in MicroSIMD Architectures
MicroSIMD architectures incorporating subword parallelism are very efficient for application-specific media processors as well as for fast multimedia information processing in general-purpose processors. This paper addresses the unsolved problem of the need to permute the subwords packed in registers for maximum parallelism performance, especially for two-dimensional (2-D) multimedia algorithms. We propose a new systematic approach for identifying the fundamental data rearrangement needs in current and future 2-D pixel processing programs based on the hierarchical decomposition of frames and objects into atomic 2-D structures. We define new subword permutation instructions, Check, Excheck, Exchange, and Permset, that achieve these data rearrangements across multiple registers. We also define an alphabet of subword permutation primitives, including these new instructions and the Mix instruction defined for PA-RISC MAX-2 and IA-64, which supports the data rearrangement needs of 2-D fram...
Ruby B. Lee
Added 30 Jul 2010
Updated 30 Jul 2010
Type Conference
Year 2000
Where ASAP
Authors Ruby B. Lee
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