shiftertestbench.vhd

ARM7核在FPGA中的VHDL代码实现

--****************************************************************************************************
-- ARM barrel shifter testbench
-- Designed by Ruslan Lepetenok
--****************************************************************************************************

library	IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_unsigned.all;
use IEEE.std_logic_arith.all;

entity ShifterTestbench is port (
	                    ShTbIn       : in  std_logic_vector(31 downto 0); -- Input data
						ShTbOut      : out std_logic_vector(31 downto 0);	-- Output data
	                    ShTbCFlagIn  : in  std_logic; -- Input of the carry flag 
						ShTbCFlagOut : out std_logic; -- Output of the carry flag 
						ShEn         : out  std_logic; -- Shifter enable
						ShLen        : out  std_logic_vector(31 downto 0); -- Shift length !!!
						ShType       : out  std_logic_vector(1 downto 0); -- Shift type (bits 6 and 5 of instruction)
						ShRotImm     : out  std_logic  -- Rotate immediate 8-bit value
								 );
end ShifterTestbench;

architecture BEH of ShifterTestbench is
begin

Test:process
variable TestVar : integer := 0;
begin

for i 0 to 	
	
	
	
end process;
	
	
end BEH;