This just a quick hack I put together to demonstate how to write bootsector code. All it does is print the initial values of the registers and then hang. I didn t really comment anything, but it s very simple so it shouldn t be difficult to understand.-This is just a quick hack I put together to demonstate how to write bootsector code. All it does is print the initial values of the registers and then hang.　I didn t really comment anything, but it s very simple so it shouldn t be difficult to understand.