Subversion Repositories generic_booth_multipler

-- TestBench Template 

  LIBRARY ieee;

  USE ieee.std_logic_1164.ALL;

  USE ieee.numeric_std.ALL;

  ENTITY TB_BoothMultiplier IS

  END TB_BoothMultiplier;

  ARCHITECTURE behavior OF TB_BoothMultiplier IS

  -- Component Declaration

  component BoothMultiplier is

  generic(COUNTER_SIZE : positive := 2);

  port(

    clock : in  std_logic;

    clear : in   std_logic;

    start : in  std_logic;

    X_data: in   std_logic_vector(2**COUNTER_SIZE-1 downto 0);

    Y_data: in   std_logic_vector(2**COUNTER_SIZE-1 downto 0);

    ready : out std_logic;

    Result: out std_logic_vector(2*(2**COUNTER_SIZE)-1 downto 0));

  end component;

                signal  clock :std_logic := '0';

                signal  reset :std_logic := '0';

                signal  start :std_logic := '0';

                signal  ready4 :std_logic := '0';

                signal  ready8 :std_logic := '0';

                signal  X_data4 :std_logic_vector(3 downto 0);

                signal  Y_data4 :std_logic_vector(3 downto 0);

                signal  Result8 :std_logic_vector(7 downto 0);

    signal      X_data8 :std_logic_vector(7 downto 0);

    signal  Y_data8 :std_logic_vector(7 downto 0);

    signal  Result16 :std_logic_vector(15 downto 0);

  begin

        desing_under_test4bit: BoothMultiplier

        generic map(

    COUNTER_SIZE => 2)

        port map(

    clock => clock,

    clear => reset,

    start => start,

    X_data => X_data4,

    Y_data => Y_data4,

    ready => ready4,

    Result => Result8);

        desing_under_test8bit: BoothMultiplier

    generic map(

      COUNTER_SIZE => 3)

    port map(

      clock => clock,

      clear => reset,

      start => start,

      X_data => X_data8,

      Y_data => Y_data8,

      ready => ready8,

      Result => Result16);

         clock  <= not clock after 5 ns;

         start  <= '1' after 10 ns ;

  reset <=  '1' after 0010 ns ,'0' after 0020 ns;

--            '1' after 0410 ns, '0' after 0420 ns,      

--            '1' after 0810 ns, '0' after 0820 ns,      

--            '1' after 1210 ns, '0' after 1220 ns;

--               

  X_data8 <=  X"23" , -- 35

              X"03" after 0400 ns, -- 3

              X"FA" after 0800 ns, -- -8

              X"F5" after 1200 ns; -- -10

  Y_data8 <=  X"03" , -- 3 

              X"23" after 0400 ns, -- 35

              X"F5" after 0800 ns, -- -10

              X"FA" after 1200 ns;  -- -8

  X_data4 <=  X"3" , -- 35

              X"3" after 0400 ns, -- 3

              X"A" after 0800 ns, -- -8

              X"5" after 1200 ns; -- -10

  Y_data4 <=  X"3" , -- 3 

              X"3" after 0400 ns, -- 35

              X"5" after 0800 ns, -- -10

              X"A" after 1200 ns;  -- -8

end;