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LIBRARY ieee; USE ieee.std_logic_1164.ALL; USE ieee.numeric_std.ALL; ENTITY tb IS END tb; ARCHITECTURE behavior OF tb IS --Inputs signal a : unsigned(2 downto 0) := (others => '0'); signal b : unsigned(2 downto 0) := (others => '0'); --Outputs signal a_eq_b : std_logic; signal a_le_b : std_logic; signal a_gt_b : std_logic; signal i,j : integer; BEGIN -- Instantiate the Unit Under Test (UUT) uut: entity work.comparator PORT MAP ( a => a, b => b, a_eq_b => a_eq_b, a_le_b => a_le_b, a_gt_b => a_gt_b ); -- Stimulus process stim_proc: process begin for i in 0 to 8 loop for j in 0 to 8 loop a <= to_unsigned(i,3); --integer to unsigned type conversion b <= to_unsigned(j,3); wait for 10 ns; end loop; end loop; end process; END;

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