list_ch03_18_shift_test.vhd

来自「VHDL FFT SOURCECODE great one」· VHDL 代码 · 共 17 行

-- Listing 3.18
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity shifter_test is
   port(
      sw: in std_logic_vector(7 downto 0);
      btn: in std_logic_vector(2 downto 0);
      led: out std_logic_vector(7 downto 0)
   );
end shifter_test;

architecture arch of shifter_test is
begin
   shift_unit: entity work.barrel_shifter(multi_stage_arch)
      port map(a=>sw, amt=>btn, y=>led);
end arch;