Subversion Repositories parallel_search_for_maximum_weight

library ieee;

use ieee.std_logic_1164.all;

use work.basic_size.all;

entity carry_cell_NOR is

port(

        a:      IN std_logic;

        b:      IN std_logic;

        choose_prev     : in std_logic;

        found_prev              : in std_logic;

        choose_cur_bar          : out std_logic;

        found_cur_bar           : out std_logic

);

end carry_cell_NOR;

architecture behav of carry_cell_NOR  is

SIGNAL  found:            std_logic;

SIGNAL  choose:           std_logic;

SIGNAL  gci:              std_logic;

SIGNAL  gfi:              std_logic;

begin

                        gci             <=  (NOT b) NAND a;

                        gfi             <=  ( a XOR b);

                        choose_cur_bar<=  choose_prev NOR (found_prev NOR gci);

                        found_cur_bar           <=  ( (found_prev) NOR gfi);

end behav;