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指令系统是决定计算机体系结构特征的最核心因素．本文首先对近几年发展起来的超长指令字（ＶＬＩＷ）技术的基本原理进行了简短的介绍，进而结合Ｉｎｔｅｌ公司研制的ＩＡ－６４超长指令字计算机的设计描述了超长指令字计算机的性能特点．最后简述了ＶＬＩＷ技术对计算机体系结构发展的影响及其最近发展概况．
The command system is the most central element that determines the characteristics of a computer architecture. In this paper, we briefly introduce the basic principle of VLIW technology developed in recent years, and then describe the design of VLIW computer with the design of IA-64 super long instruction word computer developed by Intel Corporation Performance characteristics. Finally, the impact of VLIW technology on the development of computer architecture and its recent development are briefly described.