PIC单片机精简BCD加法减法汇编程序，支持任意多字节运算，执行效率很高-PIC Singlechip BCD adder subtraction compilation streamline procedures, to support any multi-byte operations, the implementation of efficient

一个较简易的能实现两位十进制数加、减、乘、除的汇编语言程序。功能比较有限，主要优于精简。-A relatively simple to achieve two decimal add, subtract, multiply, with the exception of the assembly language procedures. Relatively limited functions, mainly to streamline superior.