Design a shifter circuit, similar to the one in Figure 4.50, which can shift a four-bit input vector, W = w₃w₂w₁w₀, one bit-position to the right when the control signal Right is equal to 1, and one bit-position to the left when the control signal Left is equal to 1. When Right = Left = 0, the output of the circuit should be the same as the input vector. Assume that he condition Right = Left = 1 will never occur.

Shift 0 W3 Y3 0. W2 1/2 0 W1 Y 0 Wo Yo 0, k 0 0