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Banco_MEM.vhd
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Banco_MEM.vhd
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----------------------------------------------------------------------------------
-- Company:
-- Engineer:
--
-- Create Date: 15:28:20 04/07/2014
-- Design Name:
-- Module Name: Banco_MEM - Behavioral
-- Project Name:
-- Target Devices:
-- Tool versions:
-- Description:
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
----------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
-- Uncomment the following library declaration if using
-- arithmetic functions with Signed or Unsigned values
--use IEEE.NUMERIC_STD.ALL;
-- Uncomment the following library declaration if instantiating
-- any Xilinx primitives in this code.
--library UNISIM;
--use UNISIM.VComponents.all;
entity Banco_MEM is
Port ( ALU_out_EX : in STD_LOGIC_VECTOR (31 downto 0);
ALU_out_MEM : out STD_LOGIC_VECTOR (31 downto 0); -- instrucción leida en IF
clk : in STD_LOGIC;
reset : in STD_LOGIC;
load : in STD_LOGIC;
MemWrite_EX : in STD_LOGIC;
MemRead_EX : in STD_LOGIC;
MemtoReg_EX : in STD_LOGIC;
RegWrite_EX : in STD_LOGIC;
MemWrite_MEM : out STD_LOGIC;
MemRead_MEM : out STD_LOGIC;
MemtoReg_MEM : out STD_LOGIC;
RegWrite_MEM : out STD_LOGIC;
BusB_EX: in STD_LOGIC_VECTOR (31 downto 0); -- para los store
BusB_MEM: out STD_LOGIC_VECTOR (31 downto 0); -- para los store
RW_EX : in STD_LOGIC_VECTOR (4 downto 0); -- registro destino de la escritura
RW_MEM : out STD_LOGIC_VECTOR (4 downto 0)); -- PC+4 en la etapa ID
end Banco_MEM;
architecture Behavioral of Banco_MEM is
begin
SYNC_PROC: process (clk)
begin
if (clk'event and clk = '1') then
if (reset = '1') then
ALU_out_MEM <= "00000000000000000000000000000000";
BUSB_MEM <= "00000000000000000000000000000000";
RW_MEM <= "00000";
MemWrite_MEM <= '0';
MemRead_MEM <= '0';
MemtoReg_MEM <= '0';
RegWrite_MEM <= '0';
else
if (load='1') then
ALU_out_MEM <= ALU_out_EX;
BUSB_MEM <= BUSB_EX;
RW_MEM <= RW_EX;
MemWrite_MEM <= MemWrite_EX;
MemRead_MEM <= MemRead_EX;
MemtoReg_MEM <= MemtoReg_EX;
RegWrite_MEM <= RegWrite_EX;
end if;
end if;
end if;
end process;
end Behavioral;