x0,x1,x2 are the BCD input for the lock. I am trying to make the circuit go from state q0 = 0 and q1 = 0, to state q0 = 1 and q1 = 0, when the input x0 = 1 and x1 = 0 and x2 = 0. I am trying to implement this with dflip flops, but I am having a really hard time, and cannot for the life of me figure out how to do this right. Out is the signal to open the lock. It will only open if q0 = 0, q1 = 1 AND x0 =1 and x1= 1 and x2 = 0.
The circuit behaves like I expect it to, but I can't figure out the memory aspect of it at all. Any help would be greatly appreciated!