table_shell.vhd

是Nios II處理器下客製化指令的一個32位元浮點數除法器

-- hds header_start
--
-- VHDL Entity FPmix32.table_shell.symbol
--
-- Created:
--          by - kenboy.UNKNOWN (IBM-BVE1KE4DQ5P)
--          at - 15:33:38 2004/03/23
--
-- Generated by Mentor Graphics' HDL Designer(TM) 2001.5 (Build 170)
--
-- hds header_end
LIBRARY ieee;
USE ieee.std_logic_1164.all;
USE ieee.std_logic_arith.all;


ENTITY table_shell IS
   PORT( 
      inputb  : IN     std_logic_vector (23 DOWNTO 0);
      X_value : OUT    std_logic_vector (7 DOWNTO 0)
   );

-- Declarations

END table_shell ;

-- hds interface_end
--
-- VHDL Architecture FPmix32.table_shell.struct
--
-- Created:
--          by - kenboy.UNKNOWN (IBM-BVE1KE4DQ5P)
--          at - 15:33:38 2004/03/23
--
-- Generated by Mentor Graphics' HDL Designer(TM) 2001.5 (Build 170)
--
LIBRARY ieee;
USE ieee.std_logic_1164.all;
USE ieee.std_logic_arith.all;


--LIBRARY FPmix32;

ARCHITECTURE struct OF table_shell IS

   -- Architecture declarations

   -- Internal signal declarations
   SIGNAL L : std_logic_vector(6 DOWNTO 0);
   SIGNAL M : std_logic_vector(6 DOWNTO 0);


   -- Component Declarations
   COMPONENT index
   PORT (
      inputb : IN     std_logic_vector (23 DOWNTO 0);
      L      : OUT    std_logic_vector (6 DOWNTO 0)
   );
   END COMPONENT;
   COMPONENT table
   PORT (
      L : IN     std_logic_vector (6 DOWNTO 0);
      M : OUT    std_logic_vector (6 DOWNTO 0)
   );
   END COMPONENT;
   COMPONENT words
   PORT (
      M       : IN     std_logic_vector (6 DOWNTO 0);
      X_value : OUT    std_logic_vector (7 DOWNTO 0)
   );
   END COMPONENT;

   -- Optional embedded configurations
   -- pragma synthesis_off
--   FOR ALL : index USE ENTITY FPmix32.index;
--   FOR ALL : table USE ENTITY FPmix32.table;
--   FOR ALL : words USE ENTITY FPmix32.words;
   -- pragma synthesis_on


BEGIN
   -- Instance port mappings.
   I1 : index
      PORT MAP (
         inputb => inputb,
         L      => L
      );
   I0 : table
      PORT MAP (
         L => L,
         M => M
      );
   I2 : words
      PORT MAP (
         M       => M,
         X_value => X_value
      );

END struct;