I need to (in design) create a 3-bit comparator using an 8-bit multiplexer and/or up to four 4-bit multiplexers. There are plenty of examples of how comparators and multiplexers works on the web. There are several examples of 2-bit comparators based on multiplexers. But nothing over 2 bits. After many hours of pondering and sketching I am beginning to think it is impossible.
Can someone tell me if it is even possible ? Am I beating my head against a concrete wall for no reason at all ? If it's possible can someone just give me a hint?