Automatic Identification of Customized Instruction Based on Multiple Attribute Decision-Making for Multi-Issue Architectures

• Published in: Tsinghua science and technology Vol. 16; no. 3; pp. 278 - 284
• Main Author: 谭洪贺 孙义和
• Format: Journal Article
• Language: English; Chinese
• Published: Elsevier Ltd 01.06.2011; Tsinghua National Laboratory of Information and Technology, Institute of Microelectronics, Tsinghua University, Beijing 100084, China
• Subjects: Architecture; customized instruction (CI); Decision making; Design engineering; instruction set extension (ISE); multi-issue architecture; 关键路径; 单元配置; 多属性决策; 定制指令; 应用程序; 架构; 自动识别方法; 输入/输出; customized instruction (CI); instruction set extension (ISE); multi-issue architecture
• ISSN: 1007-0214; 1878-7606; 1007-0214
• DOI: 10.1016/S1007-0214(11)70040-2

This paper illustrates the importance of the configuration of function units and the change of an application’s critical path when using instruction set extension （ISE） with multi-issue architectures. This paper also presents an automatic identification approach for customized instruction without input/output number constraints for multi-issue architectures. The approach identifies customized instructions using multiple attribute decision-making based on the analysis of several attributes for each candidate node. Tests indicate that the approach achieves higher speedup ratios than previous approaches, as well as less area cost. In addition, this approach provides designers with multiple candidate designs.