sha1_add_pack.vhd

本算法基于leon2协处理器接口标准

------------------------------------------------------------------------
--
-- sha1_3fa_slice used in the wallace-tree
--
------------------------------------------------------------------------

LIBRARY ieee;
USE ieee.std_logic_1164.all;
USE ieee.std_logic_arith.all;
USE ieee.std_logic_unsigned.all;

ENTITY sha1_add_pack IS
    PORT (
              A          : IN  std_logic_vector(31 DOWNTO 0);
              Ft         : IN  std_logic_vector(31 DOWNTO 0);
              Wt        : IN  std_logic_vector(31 DOWNTO 0);
              Kt         : IN  std_logic_vector(31 DOWNTO 0);
              E          : IN  std_logic_vector(31 DOWNTO 0);
              H0        : IN  std_logic_vector(31 DOWNTO 0);
              SUM0    : OUT std_logic_vector(31 DOWNTO 0);
              SUM1    : OUT std_logic_vector(31 DOWNTO 0)
          );
END sha1_add_pack;


ARCHITECTURE rtl OF sha1_add_pack IS
     
    COMPONENT sha1_2fa_slice
    PORT (
          a       : IN  std_logic;
          b       : IN  std_logic;
          c       : IN  std_logic;
          d       : IN  std_logic;
          e       : IN  std_logic;
          f        : IN  std_logic;
          cout0   : OUT std_logic;
          cout1   : OUT std_logic;                   
          sum0    : OUT std_logic;
          sum1    : OUT std_logic
          );
    END COMPONENT;
    
    COMPONENT sha1_3fa_slice
    PORT (
          a       : IN  std_logic;
          b       : IN  std_logic;
          c       : IN  std_logic;
          d       : IN  std_logic;
          e       : IN  std_logic;
          f        : IN  std_logic;
          cin0    : IN  std_logic;
          cin1    : IN  std_logic;
          cout0   : OUT std_logic;
          cout1   : OUT std_logic;
          cout2   : OUT std_logic;                    
          sum0   : OUT std_logic;
          sum1   : OUT std_logic
          );
    END COMPONENT;

    COMPONENT sha1_4fa_slice
    PORT (
          a       : IN  std_logic;
          b       : IN  std_logic;
          c       : IN  std_logic;
          d       : IN  std_logic;
          e       : IN  std_logic;
          f        : IN  std_logic;
          cin0    : IN  std_logic;
          cin1    : IN  std_logic;
          cin2    : IN  std_logic;
          cout0   : OUT std_logic;
          cout1   : OUT std_logic;
          cout2   : OUT std_logic;                    
          cout3   : OUT std_logic;
          sum    : OUT std_logic
          );
    END COMPONENT;          
   
    COMPONENT sha1_4fa_nocout_slice
    PORT (
          a       : IN  std_logic;
          b       : IN  std_logic;
          c       : IN  std_logic;
          d       : IN  std_logic;
          e       : IN  std_logic;
          f        : IN  std_logic;
          cin0    : IN  std_logic;
          cin1    : IN  std_logic;
          cin2    : IN  std_logic;
          sum    : OUT std_logic
          );
    END COMPONENT;
      

    --cout01   0 is the num of 32 bits,  1 is the num in this slice

    SIGNAL    cout00_internal      :  std_logic;
    SIGNAL    cout01_internal      :  std_logic;
    SIGNAL    cout10_internal      :  std_logic; 
    SIGNAL    cout11_internal      :  std_logic;
    SIGNAL    cout12_internal      :  std_logic;
    SIGNAL    cout20_internal      :  std_logic; 
    SIGNAL    cout21_internal      :  std_logic;
    SIGNAL    cout22_internal      :  std_logic;
    SIGNAL    cout30_internal      :  std_logic; 
    SIGNAL    cout31_internal      :  std_logic;
    SIGNAL    cout32_internal      :  std_logic;
    SIGNAL    cout40_internal      :  std_logic; 
    SIGNAL    cout41_internal      :  std_logic;
    SIGNAL    cout42_internal      :  std_logic;
    SIGNAL    cout50_internal      :  std_logic; 
    SIGNAL    cout51_internal      :  std_logic;
    SIGNAL    cout52_internal      :  std_logic;
    SIGNAL    cout60_internal      :  std_logic; 
    SIGNAL    cout61_internal      :  std_logic;
    SIGNAL    cout62_internal      :  std_logic; 
    SIGNAL    cout70_internal      :  std_logic; 
    SIGNAL    cout71_internal      :  std_logic;
    SIGNAL    cout72_internal      :  std_logic; 
    SIGNAL    cout80_internal      :  std_logic; 
    SIGNAL    cout81_internal      :  std_logic;
    SIGNAL    cout82_internal      :  std_logic;
    SIGNAL    cout90_internal      :  std_logic; 
    SIGNAL    cout91_internal      :  std_logic;
    SIGNAL    cout92_internal      :  std_logic;
    SIGNAL    cout100_internal      :  std_logic; 
    SIGNAL    cout101_internal      :  std_logic;
    SIGNAL    cout102_internal      :  std_logic;
    SIGNAL    cout110_internal      :  std_logic; 
    SIGNAL    cout111_internal      :  std_logic;
    SIGNAL    cout112_internal      :  std_logic;
    SIGNAL    cout120_internal      :  std_logic; 
    SIGNAL    cout121_internal      :  std_logic;
    SIGNAL    cout122_internal      :  std_logic;
    SIGNAL    cout130_internal      :  std_logic; 
    SIGNAL    cout131_internal      :  std_logic;
    SIGNAL    cout132_internal      :  std_logic;
    SIGNAL    cout140_internal      :  std_logic; 
    SIGNAL    cout141_internal      :  std_logic;
    SIGNAL    cout142_internal      :  std_logic;
    SIGNAL    cout150_internal      :  std_logic; 
    SIGNAL    cout151_internal      :  std_logic;
    SIGNAL    cout152_internal      :  std_logic;
    SIGNAL    cout160_internal      :  std_logic; 
    SIGNAL    cout161_internal      :  std_logic;
    SIGNAL    cout162_internal      :  std_logic;
    SIGNAL    cout170_internal      :  std_logic; 
    SIGNAL    cout171_internal      :  std_logic;
    SIGNAL    cout172_internal      :  std_logic;
    SIGNAL    cout180_internal      :  std_logic; 
    SIGNAL    cout181_internal      :  std_logic;
    SIGNAL    cout182_internal      :  std_logic;
    SIGNAL    cout190_internal      :  std_logic; 
    SIGNAL    cout191_internal      :  std_logic;
    SIGNAL    cout192_internal      :  std_logic;
    SIGNAL    cout200_internal      :  std_logic; 
    SIGNAL    cout201_internal      :  std_logic;
    SIGNAL    cout202_internal      :  std_logic;
    SIGNAL    cout210_internal      :  std_logic; 
    SIGNAL    cout211_internal      :  std_logic;
    SIGNAL    cout212_internal      :  std_logic;
    SIGNAL    cout220_internal      :  std_logic; 
    SIGNAL    cout221_internal      :  std_logic;
    SIGNAL    cout222_internal      :  std_logic;
    SIGNAL    cout230_internal      :  std_logic; 
    SIGNAL    cout231_internal      :  std_logic;
    SIGNAL    cout232_internal      :  std_logic;
    SIGNAL    cout240_internal      :  std_logic; 
    SIGNAL    cout241_internal      :  std_logic;
    SIGNAL    cout242_internal      :  std_logic;
    SIGNAL    cout250_internal      :  std_logic; 
    SIGNAL    cout251_internal      :  std_logic;
    SIGNAL    cout252_internal      :  std_logic;
    SIGNAL    cout260_internal      :  std_logic; 
    SIGNAL    cout261_internal      :  std_logic;
    SIGNAL    cout262_internal      :  std_logic;
    SIGNAL    cout270_internal      :  std_logic; 
    SIGNAL    cout271_internal      :  std_logic;
    SIGNAL    cout272_internal      :  std_logic;
    SIGNAL    cout280_internal      :  std_logic; 
    SIGNAL    cout281_internal      :  std_logic;
    SIGNAL    cout282_internal      :  std_logic;
    SIGNAL    cout290_internal      :  std_logic; 
    SIGNAL    cout291_internal      :  std_logic;
    SIGNAL    cout292_internal      :  std_logic;
    SIGNAL    cout300_internal      :  std_logic; 
    SIGNAL    cout301_internal      :  std_logic;
    SIGNAL    cout302_internal      :  std_logic;



BEGIN

   SUM0(2) <= '0';

   SHA1_2FA_SLICE0: sha1_2fa_slice
   PORT MAP(
          a       => A(0),
          b       => Ft(0),
          c       => Wt(0),
          d       => Kt(0),
          e       => E(0),
          f        => H0(0),
          cout0   => cout00_internal,
          cout1   => cout01_internal,                
          sum0   => SUM0(0),
          sum1   => SUM1(0)
      ); 

   SHA1_3FA_SLICE1: sha1_3fa_slice
   PORT MAP(
          a       => A(1),
          b       => Ft(1),
          c       => Wt(1),
          d       => Kt(1),
          e       => E(1),
          f        => H0(1),
          cin0   => cout00_internal,
          cin1   => cout01_internal,
          cout0  => cout10_internal,
          cout1  => cout11_internal,
          cout2  => cout12_internal,                   
          sum0  => SUM0(1),
          sum1  => SUM1(1)
      ); 
      
   SHA1_4FA_SLICE2: sha1_4fa_slice
   PORT MAP(
          a       => A(2),
          b       => Ft(2),
          c       => Wt(2),
          d       => Kt(2),
          e       => E(2),
          f        => H0(2),
          cin0   => cout10_internal,
          cin1   => cout11_internal,
          cin2   => cout12_internal,
          cout0  => cout20_internal,
          cout1  => cout21_internal,
          cout2  => cout22_internal,
          cout3  => SUM0(3),                   
          sum    => SUM1(2)
      );

   SHA1_4FA_SLICE3: sha1_4fa_slice
   PORT MAP(
          a       => A(3),
          b       => Ft(3),
          c       => Wt(3),
          d       => Kt(3),
          e       => E(3),
          f        => H0(3),
          cin0   => cout20_internal,
          cin1   => cout21_internal,
          cin2   => cout22_internal,
          cout0  => cout30_internal,
          cout1  => cout31_internal,
          cout2  => cout32_internal,
          cout3  => SUM0(4),                   
          sum    => SUM1(3)
      );

   SHA1_4FA_SLICE4: sha1_4fa_slice
   PORT MAP(
          a       => A(4),
          b       => Ft(4),
          c       => Wt(4),
          d       => Kt(4),
          e       => E(4),
          f        => H0(4),
          cin0   => cout30_internal,
          cin1   => cout31_internal,
          cin2   => cout32_internal,
          cout0  => cout40_internal,
          cout1  => cout41_internal,
          cout2  => cout42_internal,
          cout3  => SUM0(5),                   
          sum    => SUM1(4)
      );

   SHA1_4FA_SLICE5: sha1_4fa_slice
   PORT MAP(
          a       => A(5),
          b       => Ft(5),
          c       => Wt(5),
          d       => Kt(5),
          e       => E(5),
          f        => H0(5),
          cin0   => cout40_internal,
          cin1   => cout41_internal,
          cin2   => cout42_internal,
          cout0  => cout50_internal,
          cout1  => cout51_internal,
          cout2  => cout52_internal,
          cout3  => SUM0(6),                   
          sum    => SUM1(5)
      );  
      
   SHA1_4FA_SLICE6: sha1_4fa_slice
   PORT MAP(
          a       => A(6),
          b       => Ft(6),
          c       => Wt(6),
          d       => Kt(6),
          e       => E(6),
          f        => H0(6),
          cin0   => cout50_internal,
          cin1   => cout51_internal,
          cin2   => cout52_internal,
          cout0  => cout60_internal,
          cout1  => cout61_internal,
          cout2  => cout62_internal,
          cout3  => SUM0(7),                   
          sum    => SUM1(6)
      ); 

   SHA1_4FA_SLICE7: sha1_4fa_slice
   PORT MAP(
          a       => A(7),
          b       => Ft(7),
          c       => Wt(7),
          d       => Kt(7),
          e       => E(7),
          f        => H0(7),
          cin0   => cout60_internal,
          cin1   => cout61_internal,
          cin2   => cout62_internal,
          cout0  => cout70_internal,
          cout1  => cout71_internal,
          cout2  => cout72_internal,
          cout3  => SUM0(8),                   
          sum    => SUM1(7)
      );

   SHA1_4FA_SLICE8: sha1_4fa_slice
   PORT MAP(
          a       => A(8),
          b       => Ft(8),
          c       => Wt(8),
          d       => Kt(8),
          e       => E(8),
          f        => H0(8),
          cin0   => cout70_internal,
          cin1   => cout71_internal,
          cin2   => cout72_internal,
          cout0  => cout80_internal,
          cout1  => cout81_internal,
          cout2  => cout82_internal,
          cout3  => SUM0(9),                   
          sum    => SUM1(8)
      );

   SHA1_4FA_SLICE9: sha1_4fa_slice
   PORT MAP(
          a       => A(9),
          b       => Ft(9),
          c       => Wt(9),
          d       => Kt(9),
          e       => E(9),
          f        => H0(9),
          cin0   => cout80_internal,
          cin1   => cout81_internal,
          cin2   => cout82_internal,
          cout0  => cout90_internal,
          cout1  => cout91_internal,
          cout2  => cout92_internal,
          cout3  => SUM0(10),                   
          sum    => SUM1(9)
      );

   SHA1_4FA_SLICE10: sha1_4fa_slice
   PORT MAP(
          a       => A(10),
          b       => Ft(10),
          c       => Wt(10),
          d       => Kt(10),
          e       => E(10),
          f        => H0(10),
          cin0   => cout90_internal,
          cin1   => cout91_internal,
          cin2   => cout92_internal,