Hi,
Can anyone please help me in making a program that runs like a boot loader in assembly language. Here is what I am trying to do-
I have three program files
1.asm
2.asm
3.asm
I want to start the bootloader program such that when it starts up,it gives me an option to select and run the three files on startup. These files will then perform their individual functions which are already working.
Please let me know if you need any more clarifications any help/code will be really appreciated.

You can find tutorials and examples here:

The Operating System Resource Center
http://www.nondot.org/sabre/os/articles

OS FAQ Wiki
http://www.osdev.org/osfaq2/

Nathan.