URL
https://opencores.org/ocsvn/mipsr2000/mipsr2000/trunk
Subversion Repositories mipsr2000
Compare Revisions
- This comparison shows the changes necessary to convert path
/
- from Rev 27 to Rev 28
- ↔ Reverse comparison
Rev 27 → Rev 28
/mipsr2000/trunk/Shift_mux.vhd
0,0 → 1,54
---------------------------------------------------------------------------------- |
-- 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; |
|