YHFT-DX高性能DSP指令控制流水线设计与优化  

Design and optimization techniques for instruction control pipeline of YHFT-DX high performance DSP

作　　者：郭阳[1] 甄体智[1] 李勇[1] 

机构地区：[1]国防科技大学计算机学院微电子所,长沙410073

出　　处：《计算机工程与应用》2010年第7期69-71,103,共4页Computer Engineering and Applications

基　　金：国家自然科学基金No.60573173;国家教育部新世纪人才支持计划~~

摘　　要：YHFT-DX是国防科技大学设计的一款高性能定点DSP。论文设计并实现了YHFT-DX指令控制流水线,提出了在YHFT-DX超长指令字结构中跨取指包边界派发和指令预取的方法,有效提升了流水线的性能。对指令流水线进行了高频结构优化,将派发部件的关键路径延时压缩40%,满足了600MHz频率的设计目标。YHFT-DX developed by NUDT is a high performance fix-point DSP processor.This paper designs the instruction control pipeline of YHFT-DX,and presents the non-align dispatch and instruction pre-feteh mechanism to achieve high pipeline performance of the VLIW YHFT-DX.At the same time,the structure of the instruction pipeline is optimized for high performance. The critical path Of instruction dispatch unit is reduced by 40%,which meets the 600 MHz design objective of the chip.

关 键 词：数字信号处理器 超长指令字 流水线 跨边界派发 指令预取 

分 类 号：TP363[自动化与计算机技术—计算机系统结构]