单片机开发过程中必须用到的算法，如八位无符号数乘法，返回仍然是八位数；16位无符号数乘法；无符号8位数指数滤波函数，可用于AD或其他数据的滤波；无符号8位数二维查表算法等。简单实用-Algorithm the MCU development process must be used, such as the eight non-signed multiplication, the return is still the number eight 16 unsigned multiplicati