Contents > Logic Gates

NOR

NOR is a two-input gate that outputs the joint denial of its inputs. That is, the output is 1 only when both inputs are 0.

It is a universal gate. Meaning, NOR gates alone can be combined to form any other gate.

The code below realizes a NOR gate by feeding two inputs into an inverter.

nor.t
not 0 0

in a -1..0 0
in b 1 0
out o -1..1 5

The following image presents the outputs for all possible inputs.

The L-tetromino operates as an OR gate, resulting in output opposite of OR.