How to implement >= Gate?

Alec_t

Joined Sep 17, 2013
14,263
Welcome to AAC!
We don't do homework for you, but can point you in the right direction. You are expected to show us your efforts so far.
 

WBahn

Joined Mar 31, 2012
29,928
Consider how YOU would do it by hand and see if you can transform that into a simple rule that can be implemented in logic.

Be sure to consider negative integers, if your representation includes them.

Did you notice that the bottom 1-but ALU has three outputs while the others only have two? What's that other output that is hard-wired as feeding to the bottom (and undefined) input of the first ALU?
 
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