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一、概述 二进制与十进制具有许多优点,它们已广泛地用于数字计算机的算术运算。但是,由于它们是一种固定基的加权数制,所以对于任何算术运算,其结果的每一位数字不仅依赖于操作数的对应位,而且依赖于比该位低的数位上的所有数字。由于运算时需要考虑进位传送,不可能实现所有数位的并行运算,从而使得算术运算的速度受到限制。随着电子计算机运算速度的迅速提高,在执行算术运算时为了处理
First, an overview of binary and decimal has many advantages, they have been widely used in digital computer arithmetic. However, since they are fixed-base weighted systems, for any arithmetic operation, each digit of the result depends not only on the corresponding bits of the operand, but also on all the digits in the lower digits. Due to the operation need to consider carry transmission, it is impossible to achieve all the digital parallel computing, making the arithmetic operation speed is limited. With the rapid increase in the computing speed of the computer, in the implementation of arithmetic operations in order to deal with