一种新型CISC微处理器指令译码设计方法  

A New Method for Designing Instruction Decoding Unit in CISC Microprocessors

作　　者：居晓波[1] 李志斌[1] 宁兆熙[1] 程君侠[1] 王永流[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海200433

出　　处：《微电子学》2003年第2期154-156,共3页Microelectronics

摘　　要：　文章在介绍Gray码和独热编码设计CISC微处理器指令译码单元的基础上,提出了一种全新的指令译码状态机设计方案——状态分拆方法,该方法可提高指令译码状态转换速度。对几种设计方法进行了横向比较。Methods for designing instruction decoding unit in CISC microprocessors with Gray code and onehotcoding are described, and a new scheme for instruction decoding statemachine design, state dividing method, is proposed in the paper to design the instruction decoding unit By using this technique, the speed of instruction decoding can be improved In addition, a comparison is made among several design methods

关 键 词：CISC微处理器 指令译码 设计方法 状态分拆方法 RISC 状态机 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]