How do you plan to solve it?
module bitwise_ops_demo ( input [3:0] A, input [3:0] B, output [3:0] AND_OUT, output [3:0]OR_OUT, output [3:0] XOR_OUT, output [3:0] XNOR_OUT ); assign AND_OUT=A&B; assign OR_OUT=A|B; assign XOR_OUT=A^B; assign XNOR_OUT=~(A^B); endmodule