Merge pull request #6 from l3ullseye12/master

fixed XOR operation
Merge pull request #7 from l3ullseye12/master

updated stuff from lab time that you said and i also added ICMOXX to instructions.h and into the needs_regids function
updates to all stages, still only passing 8/17
many updates, still only passing 8/17
Merge pull request #8 from acbrewbaker/master

many updates to stages, still only passing 8/17