Enhance up to 40% performance of SH-4A processor by using Prefix instruction

Hung Bao Vo, Y Thien Vo, Dat Duy Nguyen,Huong Thien Hoang, Yoichi Yuyama, Hirofumi Nishi,Masayuki Ito

Solid-State and Integrated Circuit Technology（2010）

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摘要

Instruction set development is an effective way to improve processor performance. In SH-4A core enhancement, Prefix instruction is introduced as a technique to enrich function of original instruction. As a result, we have successfully integrated 130 new 32-bit instructions to 16-bit original instruction set and performance of new core is improved up to 43% compared to conventional model.

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关键词

instruction sets,microprocessor chips,sh-4a core enhancement,sh-4a processor,instruction set development,prefix instruction,processor performance,registers,correlation

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