这是一个控制键盘上NumLock键暗灭的程序，这是一个不错的小程序。-This is a control NumLock key on the keyboard to eliminate the dark, this is a good small programs.

Square Root By Newton Raphson Method This routine computes the square root of a 16 bit number(with low byte in NumLo & high byte in NumHi ). After loading NumLo & NumHi with the desired number whose square