A Video Specific Instruction Set Architecture for ASIP design

[摘要] This paper describes a novel video specific instruction set architecture for ASIP design. With single instruction multiple data (SIMD) instructions, two destination modes, and video specific instructions, an instruction set architecture is introduced to enhance the performance for videoapplications. Furthermore, we quantify the improvement on H.263 encoding. In this paper, we evaluate and compare the performance of VS-ISA, other DSPs (digital signal processors), and conventional SIMD media extensions in the context of video coding. Our evaluation results show that VS-ISA improves theprocessor's performance by approximately 5x on H.263 encoding, and VS-ISA outperforms otherarchitectures by 1.6x to 8.57x in computing IDCT.

[学科分类] 电子、光学、磁材料