library ieee;  use ieee.std_logic_1164.all;

entity RAM16x1 is
  port ( \a<0>\, \a<1>\, \a<2>\, \a<3>\ : in std_ulogic;
         \d\, \we\ : in std_ulogic;
         \o\ : out std_ulogic );
end entity RAM16x1;


architecture a of RAM16x1 is
begin
end architecture a;



entity fg_a_11 is
end entity fg_a_11;


library ieee;  use ieee.std_logic_1164.all;

architecture test of fg_a_11 is

  -- code from book

  component RAM16x1 is
    port ( \a<0>\, \a<1>\, \a<2>\, \a<3>\ : in std_ulogic;
           \d\, \we\ : in std_ulogic;
           \o\ : out std_ulogic );
  end component RAM16x1;
  -- . . .

  -- end code from book

  signal address : std_ulogic_vector(3 downto 0);
  signal raminp, ramout : std_ulogic_vector(15 downto 0);
  signal write_enable : std_ulogic;

begin

  -- code from book

  g1 : for i in 0 to 15 generate
    rama : component RAM16x1
      port map ( \a<0>\ => address(0),
                 \a<1>\ => address(1),
                 \a<2>\ => address(2),
                 \a<3>\ => address(3),
                 \d\ => raminp ( i ),
                 \we\ => write_enable,
                 \o\ => ramout ( i ) );
  end generate g1;

  -- end code from book

end architecture test;

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