J4 ›› 2010, Vol. 32 ›› Issue (4): 122-124.doi: 10.3969/j.issn.1007130X.2010.
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胡小龙,颜煦阳
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HU Xiaolong,YAN Xuyang
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摘要: 在基4的Booth算法得到部分积的基础上,采用了优化后的4:2压缩器的Wallace树对部分积求和,最后用CPA得到最终的和。优化下的并行乘法器比传统的CSA阵列乘法器速度快,且延时小。用Verilog进行了功能描述,并用ISE9.2对其进行了综合。
关键词: 并行乘法器, Booth算法, 4:2压缩器, Wallace树
Abstract: ased on the traditional Booth 4 algorithm,we adopt the Wallace tree of a balanced 4:2 compressor to compute the sum of partial products and finally use CPA to get the final sum. It is shown that this scheme has a higher speed and a small delay than the traditional CSA array multiplier.The circuit is described using the Verilog HDL language and is synthesized by ISE9.2.
Key words: parallel multiplier;Booth algorithm;4:2 compressor;Wallace tree
中图分类号:
TP332.2+2
胡小龙,颜煦阳. 32位无符号并行乘法器的设计与实现[J]. J4, 2010, 32(4): 122-124.
HU Xiaolong,YAN Xuyang. Design and Implementation of a 32Bit Unsigned Parallel Multiplier[J]. J4, 2010, 32(4): 122-124.
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链接本文: http://joces.nudt.edu.cn/CN/10.3969/j.issn.1007130X.2010.
http://joces.nudt.edu.cn/CN/Y2010/V32/I4/122