Draw the state diagram of the following rotator, write down the equations for each $D$ flip$-$flop $(1$pt$),$ and

complete the implementation as c$6.$cct $(2$pt$).$ You should make it so that $x_3{x}_2{x}_1{x}_0$ are $4$bits of input

controlled using a HEX Keyboard.

Input $Y$

$0$: The next state should equal to current input $x_3{x}_2{x}_1{x}_0$;

$1$: The next state should equal to the current state, right rotated rightwards once $($e$.$g$.$ for current

state $x_3{x}_2{x}_1{x}_0,$ the next state should be $x_0{x}_3{x}_2{x}_1)$;