Programmable modified-signed-digit addition module based on binary logic gates

被引:12
作者
Zhang, SQ
Karim, MA
机构
[1] Univ Dayton, Dept Elect & Comp Engn, Dayton, OH 45469 USA
[2] Univ Tennessee, Dept Elect Engn, Knoxville, TN 37996 USA
关键词
modified-signed-digit adder; binary-coded modified-signed-digit; optical computing;
D O I
10.1117/1.602122
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A new binary logic based modified-signed-digit (MSD) adder is proposed. By encoding MSD digits in pairs of binary bits, each of the four MSD transforms can be represented by two cascaded binary logic operations. This leads to the design of a compact and integrated programmable MSD addition module. The three operation steps in the MSD addition can be realized using this same module simply by programming the decoding masks. (C) 1999 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(99)00103-8].
引用
收藏
页码:456 / 461
页数:6
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