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[/] [mips_fault_tolerant/] [trunk/] [source/] [Shift_mux.vhd] - Rev 20
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---------------------------------------------------------------------------------- -- Company: -- Engineer: Lazaridis Dimitris -- -- Create Date: 22:19:25 04/25/2012 -- Design Name: -- Module Name: Shift_mux - 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 Shift_mux is Port ( A : in STD_LOGIC_VECTOR (4 downto 0); Shamt : in STD_LOGIC_VECTOR (4 downto 0); sv : in STD_LOGIC; lui : in STD_LOGIC; Shamt_out : out STD_LOGIC_VECTOR (4 downto 0) ); end Shift_mux; architecture Behavioral of Shift_mux is begin Shamt_out <= "10000" when lui = '1' else Shamt when sv = '0' else A when sv = '1' else "00000"; end Behavioral;
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