基于IEEE754浮点数的快速反码加法器设计

The Design of Fast 1's-complement Adder Base on IEEE754 Standard Floating-point Number

由于IEEE754标准的浮点数在计算机中是以原码的格式存储的,为了将浮点运算的结果转换成原码,最快的方法是使用反码运算系统。试应用超前进位和反码运算系统原理设计了单精度浮点数的快速的阶码减法器和尾数加法器/减法器。

Because the floating- point number of standard IEEE754 is stored and calculated as the format of sign and magnitude in modern computer system,applying 1＇s complement arithmetic system is the fastest method to transform floating - point calculation result to sign and magnitude. This fast exponential subtracter of single precision floating - point number and mantissa adder/subtracter is designed based on the look - ahead carry theory and 1 ＇s complement arithmetic system that this article applied accordingly.