I've got a very simple question for some of you. Looking over the instruction set list, I cannot determine the proper one to use.

My program simply reads the input from one pin, and outputs the value on another pin :

MOV P2, #000
Wait_For_Low_Loop:
MOV C, P1.7
MOV P2.0, C
jmp Wait_For_Low_Loop
End

Now, my question is :
What would I place between the two MOV statements to invert C?
(The input is actively low, and I want the output to display that as actively high on an LED)