Subversion Repositories special_functions_unit

-- operacion de suma y resta en flotante.

Library IEEE;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

--use IEEE.numeric_bit.all;

--use IEEE.STD_LOGIC_ARITH.ALL;

entity suma_resta is

generic(

                long : natural := 32

                );

port(

        operando1, operando2: in unsigned(long-1 downto 0);

        operacion: in unsigned(3 downto 0);

        resultado: out unsigned(long-1 downto 0)

        );

end suma_resta;

architecture ar of suma_resta is

                component prueba is

                Port ( FP_A : in  std_logic_vector (31 downto 0);

                        FP_B : in  std_logic_vector (31 downto 0);

                        add_sub: in std_logic;

                        FP_Z : out  std_logic_vector (31 downto 0));

        end component;

begin

        P2: prueba port map(

                                FP_A =>STD_LOGIC_VECTOR(operando1),

                                FP_B =>STD_LOGIC_VECTOR(operando2),

                                add_sub =>operacion(0),

                                unsigned(FP_Z) =>resultado

                                );

end ar;