dct8_final.txt

IDCT-M is a medium speed 1D IDCT core -- it can accept a continous stream of 12-bit input words at

--signal comptemp : unsigned(1 downto 0);

signal ap : unsigned(11 downto 0) := "010110101000";
signal bp : unsigned(11 downto 0) := "011101100100";
signal cp : unsigned(11 downto 0) := "001100010000";
signal dp : unsigned(11 downto 0) := "011111011001";
signal ep : unsigned(11 downto 0) := "011010100111";
signal fp : unsigned(11 downto 0) := "010001110010";
signal gp : unsigned(11 downto 0) := "000110010000";

signal am : unsigned(11 downto 0) := "101001011000";
signal bm : unsigned(11 downto 0) := "100010011100";
signal cm : unsigned(11 downto 0) := "110011110000";
signal dm : unsigned(11 downto 0) := "100000100111";
signal em : unsigned(11 downto 0) := "100101011001"; -- NOT used
signal fm : unsigned(11 downto 0) := "101110001110";
signal gm : unsigned(11 downto 0) := "111001110000";

BEGIN

coeff(0) <= gp;    --     G
coeff(1) <= fm;    --     -F
coeff(2) <= ep;    --     E
coeff(3) <= dm;    --     -D

-- Complementary values
coeff(4) <= gm;    --     -G
coeff(5) <= fp;    --     F
coeff(6) <= em;    --     -E
coeff(7) <= dp;    --     D


--comptemp <= CONV_UNSIGNED(compl,2);
--addr <= CONV_INTEGER(comptemp&addr2);
addr <= CONV_INTEGER(compl&addr2);


--with enable_rom select
--	coeff_out <= "000000000000" when '0',
--	             coeff(addr) when '1',
--		     "000000000000" when others;
	
with enable_rom select
coeff_out <= coeff(addr) when '1',
			     "000000000000" when others;
	
END beh;

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

ENTITY MACX00 IS
   PORT( 
      addr2      : IN     unsigned (1 DOWNTO 0) ;
      clk        : IN     std_ulogic  ;
      clk_1      : IN     std_ulogic  ;
      clk_2      : IN     std_ulogic  ;
      compl      : IN     std_ulogic  ;
      enable     : IN     std_ulogic  ;
      enable_1   : IN     std_ulogic  ;
      enable_2   : IN     std_ulogic  ;
      enable_rom : IN     std_ulogic  ;
      aout_3     : OUT    unsigned (13 DOWNTO 0)
   );

-- Declarations

END MACX00 ;
--
--
LIBRARY ieee ;
USE ieee.std_logic_1164.ALL;
USE ieee.std_logic_arith.ALL;

LIBRARY work;

ARCHITECTURE struct OF MACX00 IS

-- Architecture declarations

-- Internal signal declarations
SIGNAL Sout      : unsigned(11 DOWNTO 0);
SIGNAL aout      : unsigned(11 DOWNTO 0);
SIGNAL aout_1    : unsigned(12 DOWNTO 0);
SIGNAL aout_2    : unsigned(13 DOWNTO 0);
SIGNAL bin       : unsigned(13 DOWNTO 0);
SIGNAL coeff_out : unsigned(11 downto 0);
SIGNAL output    : unsigned(12 DOWNTO 0);
SIGNAL output_1  : unsigned(13 DOWNTO 0);

-- Component Declarations
COMPONENT ROM1C
   PORT (
      addr2      : IN     unsigned (1 DOWNTO 0);
      compl      : IN     std_ulogic ;
      enable_rom : IN     std_ulogic ;
      coeff_out  : OUT    unsigned (11 downto 0)
   );
END COMPONENT;
COMPONENT add12signed
   PORT (
      a      : IN     unsigned (11 DOWNTO 0);
      b      : IN     unsigned (11 DOWNTO 0);
      output : OUT    unsigned (12 DOWNTO 0)
   );
END COMPONENT;
COMPONENT add14signed
   PORT (
      ain    : IN     unsigned (13 DOWNTO 0);
      bin    : IN     unsigned (13 DOWNTO 0);
      output : OUT    unsigned (13 DOWNTO 0)
   );
END COMPONENT;
COMPONENT div2
   PORT (
      Sin  : IN     unsigned (12 downto 0);
      Sout : OUT    unsigned (11 downto 0)
   );
END COMPONENT;
COMPONENT reg12b
   PORT (
      ain    : IN     unsigned (11 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (11 DOWNTO 0)
   );
END COMPONENT;
COMPONENT reg13b
   PORT (
      ain    : IN     unsigned (12 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (12 DOWNTO 0)
   );
END COMPONENT;
COMPONENT reg14b
   PORT (
      ain    : IN     unsigned (13 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (13 DOWNTO 0)
   );
END COMPONENT;

-- Optional embedded configurations
--synopsys translate_off
FOR ALL : ROM1C USE ENTITY work.ROM1C;
FOR ALL : add12signed USE ENTITY work.add12signed;
FOR ALL : add14signed USE ENTITY work.add14signed;
FOR ALL : div2 USE ENTITY work.div2;
FOR ALL : reg12b USE ENTITY work.reg12b;
FOR ALL : reg13b USE ENTITY work.reg13b;
FOR ALL : reg14b USE ENTITY work.reg14b;
--synopsys translate_on

BEGIN
-- Architecture concurrent statements
-- HDL Embedded Text Block 1 eb1
bin <= aout_1(12)&aout_1;


   -- Instance port mappings.
   I0 : ROM1C
      PORT MAP (
         addr2      => addr2,
         compl      => compl,
         enable_rom => enable_rom,
         coeff_out  => coeff_out
      );
   I2 : add12signed
      PORT MAP (
         a      => Sout,
         b      => aout,
         output => output
      );
   I5 : add14signed
      PORT MAP (
         ain    => aout_2,
         bin    => bin,
         output => output_1
      );
   I4 : div2
      PORT MAP (
         Sin  => aout_1,
         Sout => Sout
      );
   I1 : reg12b
      PORT MAP (
         ain    => coeff_out,
         clk    => clk,
         enable => enable,
         aout   => aout
      );
   I3 : reg13b
      PORT MAP (
         ain    => output,
         clk    => clk,
         enable => enable,
         aout   => aout_1
      );
   I6 : reg14b
      PORT MAP (
         ain    => output_1,
         clk    => clk_1,
         enable => enable_1,
         aout   => aout_2
      );
   I7 : reg14b
      PORT MAP (
         ain    => aout_2,
         clk    => clk_2,
         enable => enable_2,
         aout   => aout_3
      );

END struct;

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

ENTITY MACX01 IS
   PORT( 
      addr2      : IN     unsigned (1 DOWNTO 0) ;
      clk        : IN     std_ulogic  ;
      clk_1      : IN     std_ulogic  ;
      clk_2      : IN     std_ulogic  ;
      compl      : IN     std_ulogic  ;
      enable     : IN     std_ulogic  ;
      enable_1   : IN     std_ulogic  ;
      enable_2   : IN     std_ulogic  ;
      enable_rom : IN     std_ulogic  ;
      aout_3     : OUT    unsigned (13 DOWNTO 0)
   );

-- Declarations

END MACX01 ;
--
--
LIBRARY ieee ;
USE ieee.std_logic_1164.ALL;
USE ieee.std_logic_arith.ALL;

LIBRARY work;

ARCHITECTURE struct OF MACX01 IS

-- Architecture declarations

-- Internal signal declarations
SIGNAL Sout      : unsigned(11 DOWNTO 0);
SIGNAL aout      : unsigned(11 DOWNTO 0);
SIGNAL aout_1    : unsigned(12 DOWNTO 0);
SIGNAL aout_2    : unsigned(13 DOWNTO 0);
SIGNAL bin       : unsigned(13 DOWNTO 0);
SIGNAL coeff_out : unsigned(11 downto 0);
SIGNAL output    : unsigned(12 DOWNTO 0);
SIGNAL output_1  : unsigned(13 DOWNTO 0);

-- Component Declarations
COMPONENT ROMC_01
   PORT (
      addr2      : IN     unsigned (1 downto 0);
      compl      : IN     std_ulogic ;
      enable_rom : IN     std_ulogic ;
      coeff_out  : OUT    unsigned (11 DOWNTO 0)
   );
END COMPONENT;
COMPONENT add12signed
   PORT (
      a      : IN     unsigned (11 DOWNTO 0);
      b      : IN     unsigned (11 DOWNTO 0);
      output : OUT    unsigned (12 DOWNTO 0)
   );
END COMPONENT;
COMPONENT add14signed
   PORT (
      ain    : IN     unsigned (13 DOWNTO 0);
      bin    : IN     unsigned (13 DOWNTO 0);
      output : OUT    unsigned (13 DOWNTO 0)
   );
END COMPONENT;
COMPONENT div2
   PORT (
      Sin  : IN     unsigned (12 downto 0);
      Sout : OUT    unsigned (11 downto 0)
   );
END COMPONENT;
COMPONENT reg12b
   PORT (
      ain    : IN     unsigned (11 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (11 DOWNTO 0)
   );
END COMPONENT;
COMPONENT reg13b
   PORT (
      ain    : IN     unsigned (12 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (12 DOWNTO 0)
   );
END COMPONENT;
COMPONENT reg14b
   PORT (
      ain    : IN     unsigned (13 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (13 DOWNTO 0)
   );
END COMPONENT;

-- Optional embedded configurations
--synopsys translate_off
FOR ALL : ROMC_01 USE ENTITY work.ROMC_01;
FOR ALL : add12signed USE ENTITY work.add12signed;
FOR ALL : add14signed USE ENTITY work.add14signed;
FOR ALL : div2 USE ENTITY work.div2;
FOR ALL : reg12b USE ENTITY work.reg12b;
FOR ALL : reg13b USE ENTITY work.reg13b;
FOR ALL : reg14b USE ENTITY work.reg14b;
--synopsys translate_on

BEGIN
-- Architecture concurrent statements
-- HDL Embedded Text Block 2 eb2
bin <= aout_1(12)&aout_1;


   -- Instance port mappings.
   I0 : ROMC_01
      PORT MAP (
         addr2      => addr2,
         compl      => compl,
         enable_rom => enable_rom,
         coeff_out  => coeff_out
      );
   I3 : add12signed
      PORT MAP (
         a      => Sout,
         b      => aout,
         output => output
      );
   I6 : add14signed
      PORT MAP (
         ain    => aout_2,
         bin    => bin,
         output => output_1
      );
   I5 : div2
      PORT MAP (
         Sin  => aout_1,
         Sout => Sout
      );
   I2 : reg12b
      PORT MAP (

         ain    => coeff_out,
         clk    => clk,
         enable => enable,
         aout   => aout
      );
   I4 : reg13b
      PORT MAP (
         ain    => output,
         clk    => clk,
         enable => enable,
         aout   => aout_1
      );
   I7 : reg14b
      PORT MAP (
         ain    => output_1,
         clk    => clk_1,
         enable => enable_1,
         aout   => aout_2
      );
   I8 : reg14b
      PORT MAP (
         ain    => aout_2,
         clk    => clk_2,
         enable => enable_2,
         aout   => aout_3
      );

END struct;

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

ENTITY MACX02 IS
   PORT( 
      addr2      : IN     unsigned (1 DOWNTO 0) ;
      clk        : IN     std_ulogic  ;
      clk_1      : IN     std_ulogic  ;
      clk_2      : IN     std_ulogic  ;
      compl      : IN     std_ulogic  ;
      enable     : IN     std_ulogic  ;
      enable_1   : IN     std_ulogic  ;
      enable_2   : IN     std_ulogic  ;
      enable_rom : IN     std_ulogic  ;
      aout_3     : OUT    unsigned (13 DOWNTO 0)
   );

-- Declarations

END MACX02 ;
--
--
LIBRARY ieee ;
USE ieee.std_logic_1164.ALL;
USE ieee.std_logic_arith.ALL;

LIBRARY work;

ARCHITECTURE struct OF MACX02 IS

-- Architecture declarations

-- Internal signal declarations
SIGNAL Sout      : unsigned(11 DOWNTO 0);
SIGNAL aout      : unsigned(11 DOWNTO 0);
SIGNAL aout_1    : unsigned(12 DOWNTO 0);
SIGNAL aout_2    : unsigned(13 DOWNTO 0);
SIGNAL bin       : unsigned(13 DOWNTO 0);
SIGNAL coeff_out : unsigned(11 downto 0);
SIGNAL output    : unsigned(12 DOWNTO 0);
SIGNAL output_1  : unsigned(13 DOWNTO 0);

-- Component Declarations
COMPONENT ROMC_02
   PORT (
      addr2      : IN     unsigned (1 DOWNTO 0);
      compl      : IN     std_ulogic ;
      enable_rom : IN     std_ulogic ;
      coeff_out  : OUT    unsigned (11 DOWNTO 0)
   );
END COMPONENT;
COMPONENT add12signed
   PORT (
      a      : IN     unsigned (11 DOWNTO 0);
      b      : IN     unsigned (11 DOWNTO 0);
      output : OUT    unsigned (12 DOWNTO 0)
   );
END COMPONENT;
COMPONENT add14signed
   PORT (
      ain    : IN     unsigned (13 DOWNTO 0);
      bin    : IN     unsigned (13 DOWNTO 0);
      output : OUT    unsigned (13 DOWNTO 0)
   );
END COMPONENT;
COMPONENT div2
   PORT (
      Sin  : IN     unsigned (12 downto 0);
      Sout : OUT    unsigned (11 downto 0)
   );
END COMPONENT;
COMPONENT reg12b
   PORT (
      ain    : IN     unsigned (11 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (11 DOWNTO 0)
   );
END COMPONENT;
COMPONENT reg13b
   PORT (
      ain    : IN     unsigned (12 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (12 DOWNTO 0)
   );
END COMPONENT;
COMPONENT reg14b
   PORT (
      ain    : IN     unsigned (13 DOWNTO 0);
      clk    : IN     std_ulogic ;
      enable : IN     std_ulogic ;
      aout   : OUT    unsigned (13 DOWNTO 0)
   );
END COMPONENT;

-- Optional embedded configurations
--synopsys translate_off
FOR ALL : ROMC_02 USE ENTITY work.ROMC_02;
FOR ALL : add12signed USE ENTITY work.add12signed;
FOR ALL : add14signed USE ENTITY work.add14signed;
FOR ALL : div2 USE ENTITY work.div2;
FOR ALL : reg12b USE ENTITY work.reg12b;
FOR ALL : reg13b USE ENTITY work.reg13b;
FOR ALL : reg14b USE ENTITY work.reg14b;
--synopsys translate_on

BEGIN
-- Architecture concurrent statements
-- HDL Embedded Text Block 2 eb2
bin <= aout_1(12)&aout_1;


   -- Instance port mappings.
   I0 : ROMC_02
      PORT MAP (
         addr2      => addr2,
         compl      => compl,
         enable_rom => enable_rom,
         coeff_out  => coeff_out
      );
   I3 : add12signed
      PORT MAP (
         a      => Sout,
         b      => aout,