three.vhd

source code of counter,ram,lfsr etc

library IEEE;
use IEEE.STD_LOGIC_1164.all;
use IEEE.Numeric_Std.all;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
entity three is 
port(clock:in std_logic;
dout:out std_logic_vector(9 downto 0) );
end three;
architecture struct of three is
       signal x,y:std_logic_vector(9 downto 0);
       
        component sync_ram1 is 
         port (
    clock   : in  std_logic;
    we,rd   : in  std_logic;
    address : in  std_logic_vector(0 to 9);
    datain  : in  std_logic_vector(0 to 9);
    dataout : out std_logic_vector(0 to 9)
  );
end component;
component counter is 
    
      port( clkIN : in std_logic;
            count : out std_logic_vector(9 downto 0));
end component;
component lfsr_10 is
    port(clk: in std_logic;
    randout: buffer std_logic_vector(9 downto 0) );
 end component;
 
  begin
 
     t1:lfsr_10 port map(clock,x);
     t2:counter port map(clock,y);
     t3:sync_ram1 port map(clock,'1','1',y,x,dout) ;
 end struct;