Merge pull request #2 from Omar-Hossam/2lOH

or
mohamed added sw and fixed errors with lw and changed every int to long
mohamed fixed merge conflicts after pull and everything is running
Merge pull request #3 from Omar-Hossam/mohamed

added lw and sw
fixed error with sw
Merge pull request #4 from Omar-Hossam/mohamed

fixed error with sw
added sh and sb
Merge pull request #5 from Omar-Hossam/mohamed

added sh and sb
mc
ori, addi and lh instructions added