基于FPGA技术的浮点运算器的设计与实现.pdf

第26 卷 第6 期 计算机工程与设计 2005 年6 月 Vol . 2 6 N o . 6 Computer Engineering and Design June 2005 基于FPGA 技术的浮点运算器的设计与实现 1,2 1 1 周宁宁 ， 陈燕例 ， 李爱群 (1. 南京邮电学院计算机科学与技术系，江苏南京2 10003 ；2. 东南大学仪器科学与工程系，江苏南京2 10096) ( ) 摘 要：日趋进步和完善的FPGA 现场可编程门阵列 技术推动了当前数字电路的设计。浮点运算器是计算机的一个 组成部件，结构比较复杂，利用FPGA 技术设计浮点运算器可以缩短产品的开发周期。介绍了基于FPGA 技术的浮点 运算器的设计与实现。描述了采用VHDL （VHSIC 硬件描述语言）和原理图方式设计完成浮点运算器的方法和步骤。 利用FPGA 技术，能方便灵活地设计出浮点运算器。 关键词：FPGA ；浮点运算器；VHDL ；原理图 中图法分类号：TP33 ；TN79 文献标识码：A 文章编号：1000-7024 (2005) 06- 1578-04 Design and implementation of floating point calculator based on FPGA technology 1,2 1 1 ZHOU Ning-ning , CHEN Yan-li , LI Ai-qun (1. Department of Computer Science and Technology, Nanj ing University of Post and Telecommunications, Nanj ing 2 10003, China ；2. Department of Instrument Science and Engineering, Southeast University, Nanj ing 2 10096, China) Abstract ：Further improvement of FPGA （field programable gate array）technology gives an impetus to hardware design. Floating point calculator which has more complex composition is a part of a computer. Designing a floating point calculator using FPGA technology may shorten the development cycle of product. An introduction is given to the design and implementation of a floating point calculator based on FPGA. The method and procedure on designing a floating point calculator are discussed by the way of VHDL (VHSIC hardware description language) and logic diagram separately. Using FPGA technology may design a floating point calculator conveniently and quickly. Key words：FPGA ; floating