本文根据文献[1]给出的算法,用Z80汇编语言设计了二进制开方运算程序。文献[1]给出的是一种新颖的二进制开方算法,它比文献[2]给出的各种开方算法简单、直观。此算法只需进行数的大小比较和减法,无须进行修正系数,可很方便地在廉价的微处理器上用程序实现,其精度可达任意位。此算法由下式给出 Based on the algorithm given in [1], this paper designs a binary program of square root programming using Z80 assembly language. The literature [1] shows a novel algorithm of binary extraction, which is simple and intuitive compared with the various methods of extraction given in [2]. This algorithm only need to compare the number of the size and subtraction, without the need for correction coefficient, can be easily used in the cheap microprocessor program to achieve its accuracy up to any bit. This algorithm is given by: