Custom Instructions with Multiple Exits : Generation and Execution

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概要

• 論文の詳細を見る

• In this paper, we propose an adaptive extensible processor in which custom instructions are generated and added after chip-fabrication. A reconfigurable functional unit is utilized to support this feature. The proposed reconfigurable functional unit is based on a matrix of functional units which is multi-cycle with the capability of conditional execution. A quantitative approach is utilized to fix the constraints of the architecture. Unlike previously proposed custom instructions, ours include multiple exits. Conditional execution has been added to support the multi-exit feature of custom instructions. Experimental results show that multi-exit custom instructions enhance the performance by an average of 46% compared to custom instructions limited to one basic block. A maximum speedup of 2.89, compared to a 4-issue in-order RISC processor, and an average speedup of 1.66 was achieved on MiBench benchmark suite.

• 一般社団法人情報処理学会の論文
• 2007-01-22

著者

• Inoue Koji

  Department of Cardiology, St.Mariannna University School of Medicine

• Murakami Kazuaki

  School Of Information Science And Electrical Engineering Department Of Informatics Kyushu University

• Murakami Kazuaki

  Department Of Electronics Engineering And Computer Science Fukuoka University

• Mehdipour Farhad

  School Of Information Science And Electrical Engineering Department Of Informatics Kyushu University

• NOORI Hamid

  School of Electrical and Computer Engineering, College of Engineering, University of Tehran

• GOUDARZI Maziar

  System LSI Research Center, Kyushu University

• NOORI Hamid

  Department of Informatics, Graduate School of Information Science and Electrical Engineering, Kyushu

• Mehdipour Farhad

  Department of Informatics, Graduate School of Information Science and Electrical Engineering, Kyushu

• Noori Hamid

  School Of Electrical And Computer Engineering College Of Engineering University Of Tehran

• Goudarzi Maziar

  System Lsi Research Center Kyushu University

• Murakami Kazuaki

  Department Of Computer Science And Communication Engineering Kyushu University

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