The operator XNOR performs a bitwise logical XNOR (not exclusive or) operation.
Each output bit is set to a logical "1" if the sum of the corresponding input bit values is even, otherwise the output
is "0".
The number of input links has to be selected at the instantiation of the module.
The range of the input bit width is [1, 64] for unsigned values.
For signed inputs, the range is [2, 64].
For unsigned color inputs, the range is [3, 63] and for signed color, the range is [6, 63].