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+-- TEST_START{"inputs": ["a", "b"], "outputs": ["o"], "testin": ["00", "10", "01", "11"]}TEST_STOP
+LIBRARY IEEE;
+USE IEEE.STD_LOGIC_1164.all;
+
+ENTITY nor_gate IS
+ PORT(
+ a: IN STD_LOGIC;
+ b: IN STD_LOGIC;
+ o: OUT STD_LOGIC);
+END nor_gate;
+
+ARCHITECTURE sample OF nor_gate IS
+BEGIN
+ o <= a NOR b;
+END sample;