-- E:\My_Designs\LC2\src\test_module(1).vhd created by LC2_ram beta:
-- for use with LC-2 model created by
-- Eric Frohnhofer and Ron Feliciano
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_unsigned.all;
use IEEE.std_logic_arith.all;

entity ram_module is
   port(clk       : in std_logic;
      enable      : in std_logic;
      R_W         : in std_logic;
      addr        : in std_logic_vector (15 downto 0);
      data_in     : in std_logic_vector (15 downto 0);
      data_out    : out std_logic_vector (15 downto 0));
end ram_module;

architecture BHV of ram_module is

type memory is array (0 to 1000) of std_logic_vector(15 downto 0); 

signal reg : memory := (

   "0100000100000000",
   "1111110100000000",
   "1111110100000000",
   "1111110100000000",
   "1111110100000000",
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   "1111110100000000",
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begin
   process(clk, enable, R_W, addr)
   begin
   if (enable = '1') then
      if (clk = '1' and clk' event) then
         if (R_W = '1') then
            data_out <= reg(conv_integer(addr));
			assert(addr /= "0000000111111001")report "test failed error" severity error;
         else
            reg(conv_integer(addr)) <=  data_in;
         end if;
      else 
      end if;
   end if;

end process;
end BHV;