/*
        The purpose of this function is to convert an unsigned
        binary number to reflected binary Gray code.
*/
unsigned short binaryToGray(unsigned short num)
{
        return (num>>1) ^ num;
}

一个棘手的技巧：对于最多2 ^ n位,您可以将Gray转换为二进制
执行(2 ^ n) – 1次二进制到灰度转换.你所需要的只是
上面的函数和’for’循环.

/*
        The purpose of this function is to convert a reflected binary
        Gray code number to a binary number.
*/
unsigned short grayToBinary(unsigned short num)
{
        unsigned short temp = num ^ (num>>8);
        temp ^= (temp>>4);
        temp ^= (temp>>2);
        temp ^= (temp>>1);
       return temp;
}