Based on the addition algorithm , the design was optimized by the method of scan chain control and iterative invoke and realized 14 kinds of large - number operations such as addition , subtraction , multiplication , division , module addition , module multiplication , module exponential , etc 基于簡(jiǎn)單的加法操作,采用掃描鏈控制、迭代調(diào)用等方法對(duì)設(shè)計(jì)進(jìn)行優(yōu)化,實(shí)現(xiàn)了14種基本的大數(shù)運(yùn)算功能。