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--! Test divisor module

library IEEE;

use IEEE.STD_LOGIC_1164.ALL;

use IEEE.std_logic_arith.all;

--! Use Global Definitions package

use work.pkgDefinitions.all;

ENTITY testDivisor IS

END testDivisor;

ARCHITECTURE behavior OF testDivisor IS

    -- Component Declaration for the Unit Under Test (UUT)

    COMPONENT divisor

    PORT(

         rst : IN  std_logic;

         clk : IN  std_logic;

         quotient : OUT  std_logic_vector((nBitsLarge-1) downto 0);

         reminder : OUT  std_logic_vector((nBitsLarge-1) downto 0);

         numerator : IN  std_logic_vector((nBitsLarge-1) downto 0);

         divident : IN  std_logic_vector((nBitsLarge-1) downto 0);

         done : OUT  std_logic

        );

    END COMPONENT;

   --Inputs

   signal rst : std_logic := '0';

   signal clk : std_logic := '0';

   signal numerator : std_logic_vector((nBitsLarge-1) downto 0) := (others => '0');

   signal divident : std_logic_vector((nBitsLarge-1) downto 0) := (others => '0');

        --Outputs

   signal quotient : std_logic_vector((nBitsLarge-1) downto 0);

   signal reminder : std_logic_vector((nBitsLarge-1) downto 0);

   signal done : std_logic;

   -- Clock period definitions

   constant clk_period : time := 10 ns;

BEGIN

        -- Instantiate the Unit Under Test (UUT)

   uut: divisor PORT MAP (

          rst => rst,

          clk => clk,

          quotient => quotient,

          reminder => reminder,

          numerator => numerator,

          divident => divident,

          done => done

        );

   -- 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

      -- hold reset state for 100 ns.

                rst <= '1';

                numerator <= conv_std_logic_vector(50000000, 32);

                divident <= conv_std_logic_vector(115200, 32);

      wait for 20 ns;

                rst <= '0';

                wait until done = '1';

      wait for clk_period;

                rst <= '1';

                numerator <= conv_std_logic_vector(40, 32);

                divident <= conv_std_logic_vector(5, 32);

      wait for 20 ns;

                rst <= '0';

                wait until done = '1';

                wait for clk_period;

      -- insert stimulus here 

                assert false report "NONE. End of simulation." severity failure;

   end process;

END;