How can I check my byte flag, verifying that a specific bit is at 1 or 0?

Question

I use a byte to store some flag like 10101010, and I would like to know how to verify that a specific bit is at 1 or 0.

Answer 1

You can do as Daok says and you make a bit to bit OR to the resulting of the previous AND operation. In this case you will have a final result of 1 or 0.