processor-2000/CPU_test.vhd

LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
USE ieee.numeric_std.ALL;
 
ENTITY CPU_test IS
END CPU_test;
 
ARCHITECTURE behavior OF CPU_test IS 
 
    -- Component Declaration for the Unit Under Test (UUT)
 
    COMPONENT CPU
    PORT(
	 		clk : in  STD_LOGIC;
         rst : IN  std_logic
        );
    END COMPONENT;
    

   --Inputs
   signal clk : std_logic := '0';
   signal rst : std_logic := '0';

   -- Clock period definitions
   constant clk_period : time := 10 ns;
 
BEGIN
 
	-- Instantiate the Unit Under Test (UUT)
   uut: CPU PORT MAP (
          clk => clk,
			 rst => rst
        );

   -- Clock process definitions
   clk_process :process
   begin
		clk <= '0';
		wait for clk_period/2;
		clk <= '1';
		wait for clk_period/2;
   end process;
 

   -- Stimulus process
   stim_proc: process
   begin	
		rst <= '1' after 2*clk_period;
		wait for 10*clk_period;
      wait;
   end process;

END;