Hello friends do you know this simple fact?

Can you convert an XOR gate to an inverter?

Yes it is possible, simple and very easy to understand. Do the following things.
Connect one input of a two input XOR gate to logic high. Then it is seen that output is the complement of the second input. It is called a controlled inverter. That is, output is 1 if second input is 0 and output is 0 if second input is 1. And this facility is used in a four bit adder/subtractor circuit to convert the B inputs to its corresponding complements.

If one input is set to logic zero, it is seen that output is the same as the second input. That is output is zero if second input is zero and output is one if second input is one.