c51 驱动风鸣器使发出动人音乐，本程序调试OK 转载既可用-c51-driven equipment made the temple issue touching music, the debugging process can reproduce with karaoke

这是一个用汇编语言实现的64位减法的运算，上传后宫大家欣赏-This is a compilation of the language used to achieve the 64-bit computing subtraction, From the temple we appreciate