一些51的常用重要浮点计算的asm源码，用户可以随意调用其中的子块，可以让51方便的计算一些复杂的浮点计算，如字数计算-Some 51 of the commonly used floating-point calculations important asm source code, users can call one of the sub-block, allowing 51 to facilitate the calculation of a number of complex floating-point calculation, such as calculating the number of words