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Exercice_4/Adder_Generic.vhd 1.47 KB
71388fd5   bilalelhasnaoui   seance 2
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  ----------------------------------------------------------------------------------
  -- Company: 
  -- Engineer: 
  -- 
  -- Create Date: 08.10.2023 15:22:15
  -- Design Name: 
  -- Module Name: Generic unsigned full Adder  - Behavioral
  -- Project Name: 
  -- Target Devices: 
  -- Tool Versions: 
  -- Description: 
  -- 
  -- Dependencies: 
  -- 
  -- Revision:
  -- Revision 0.01 - File Created
  -- Additional Comments:
  -- 
  ----------------------------------------------------------------------------------
  library IEEE;
  use IEEE.STD_LOGIC_1164.ALL;
  use IEEE.NUMERIC_STD.ALL;
  use ieee.std_logic_unsigned.all;
  
  -- Uncomment the following library declaration if instantiating
  -- any Xilinx leaf cells in this code.
  --library UNISIM;
  --use UNISIM.VComponents.all;
  entity Adder_Generic is
      generic( N : Integer := 256);
    Port ( 
      clk_in, reset : in std_logic;
      a_in, b_in : in std_logic_vector(N-1 downto 0);
      s_out : out std_logic_vector(N downto 0)
    );
  end Adder_Generic;
  -- 
  architecture Behavioral of Adder_Generic is
  signal ain_add   : signed(N downto 0);
  signal bin_add   : signed(N downto 0);
  signal s_out_d    : signed(N downto 0);
  begin
      s_out_d <= ain_add + bin_add;
      process(clk_in, reset)
      begin
          if reset = '1' then
              s_out <= (others => '0');
          elsif rising_edge(clk_in) then
              ain_add <= resize(signed(a_in),N+1);  
              bin_add <= resize(signed(b_in),N+1);   
              s_out   <= std_logic_vector(s_out_d);
          end if;
      end process;
  end Behavioral;