MIPS Custom Subroutine help

[Epik]

controller address: 0x09b64014

I am supposed to write a subroutines that assigns a specific task to a button for a school assignment and am to work with that address.

basically the address holds the button values of whats pressed at all times for example when you are pressing only UP it May be a value of 0x00008000.

I need to write a functionto check this address for button presses and bitwise them.

Any Help?
sorry if i am hard to understand, english is not my native language

[afiser]

LOL! yea, this isnt for a school project i know that much. its for hacking socom ftb.