NIOS Ⅱ处理器中定制指令的设计与实现  

DESIGN AND IMPLEMENTATION OF CUSTOM INSTRUCTIONS IN NIOS Ⅱ PROCESSOR

作　　者：卢德良[1] 周学功[1] 彭澄廉[1] 

机构地区：[1]复旦大学计算机与信息技术系,上海200433

出　　处：《计算机应用与软件》2007年第12期3-4,9,共3页Computer Applications and Software

基　　金：国家自然科学基金(69873010)

摘　　要：概要介绍NIOS Ⅱ处理器,详述NIOS Ⅱ处理器中定制指令的硬件实现和软件接口。并结合实例说明在进行SOPC设计时,可以把强实时软件算法或费时的软件计算作为定制指令,加入到NIOS Ⅱ处理器指令集中,提高系统性能。The architecture of SOPC design and NIOS II processor are generally introduced, The hardware implementation and software interface of custom instructions in NIOS II processor are specified, A practical example shows that during SOPC design, time-critical software algorithms can be accelerated by adding custom instructions to the NIOS II instruction set, With this feature, performance of the system can be improved dramatically,

关 键 词：NIOS II处理器 定制指令 SOPC 

分 类 号：TP332[自动化与计算机技术—计算机系统结构]