a) Write a Verilog function that will create the 2’s complement of an N-bit vector. Use a call of the form comp2(bit_vec, N), where bit_vec is the vector and N is the length of the vector. Do the complement on a bit-by-bit basis using a loop. You may declare N as a global parameter in the calling module.

(b) Write a Verilog module that will call the function in part (a).