Amir,
looking on the questions are being produced by you after my code has been posted, I think now is time for you to answer them all yourself. If you know assembly language a little and have a compiler/simulator then I do not see a reason why it may not be possible. Just do it and do not wait for that somebody does it for you instead.
After all, if you will come to real trouble then welcome back. As for now, your questions aer not from trouble but just from laziness to sit, read and learn at least some basic points. As I am not a teacher so I must not teach you, sorry. Well, I may suggest some ideas; I already have done it. Now it is your time to learn.

Good luck,
Oleg