同步加速器磁场控制状态矩阵的优化乘法器设计  

Improved multiplier used in the state-matrix for magnetic control of a synchrotron

作　　者：龙银东[1,2] 乔为民[1] 林飞宇[1,2] 敬岚[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]中国科学院研究生院,北京100049

出　　处：《核技术》2009年第12期931-934,共4页Nuclear Techniques

摘　　要：同步加速器的磁场控制系统系高精度的实时控制系统。随着CSR工程的进一步改造要求,以及数字化处理技术的不断发展,对浮点乘法的运算速度以及相应占用资源也提出更高要求。本文通过VHDL语言和BOOTH算法实现的优化乘法器,采用了结合3-2压缩器和4-2压缩器的树型结构,并以CycloneIII芯片EP3C25F256为硬件环境,进行了功能和时序仿真,与其他设计的仿真结果比较,验证了该浮点乘法器的正确和高速特性。The magnetic control of a synchrotron is a high precision real time system. With the development of digital processing, the HIRFL-CSR project （Cooler Storage Ring of the Heavy Ion Research Facility in Lanzhou） has higher requirements on floating multiplier＇s speed and used-resource. In this paper, we report the improved floating multiplier realized by the VHDL and the Booth algorithm, based on the tree-structure consisting of the 4-2 and 3-2 compressors. It takes the EP3C25F256 as the hardware environment to get the timing-emulate and function-emulate. Comparing with other designs, this floating multiplier has better in correction and speed.

关 键 词：大规模集成电路 浮点数 浮点乘法器 规格化 

分 类 号：TP332.21[自动化与计算机技术—计算机系统结构]