00E0    Clear screen
00EE    RET
        Sets the PC to the top of the stack, then subtracts 1 from the stack pointer
1nnn    JMP, address
2nnn    CALL address
        Increments the stack pointer then puts the current PC on the top of the stack, the PC is then set to xxx
3xkk    SE Vx, byte
        Skip next instruction if Vx register == kk
        Increments PC by 2
4xkk    SNE Vx, byte
        Skip next instruction if Vx register != kk
        Increments PC by 2
5xy0    SE Vx, Vy
        Skip next instruction if Vx register == Vy register
        Increments PC by 2
6xkk    Ld Vx, Vy
        Skip next instruction if Vx register == Vy register
        Increments PC by 2