library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
Library xpm;
use xpm.vcomponents.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 leaf cells in this code.
--library UNISIM;
--use UNISIM.VComponents.all;

entity axis_mux_128b is
  port ( 
    aclk                : in STD_LOGIC;
    aresetn             : in std_logic;
    aselect             : in std_logic_vector(1 downto 0);

    s0_axis_tdata       : in std_logic_vector(127 downto 0);
    s0_axis_tvalid      : in std_logic;
    s0_axis_tready      : out std_logic;

    s1_axis_tdata       : in std_logic_vector(127 downto 0);
    s1_axis_tvalid      : in std_logic;
    s1_axis_tready      : out std_logic;

    s2_axis_tdata       : in std_logic_vector(127 downto 0);
    s2_axis_tvalid      : in std_logic;
    s2_axis_tready      : out std_logic;

    s3_axis_tdata       : in std_logic_vector(127 downto 0);
    s3_axis_tvalid      : in std_logic;
    s3_axis_tready      : out std_logic;

    m_axis_tdata        : out std_logic_vector(127 downto 0);
    m_axis_tvalid       : out std_logic;
    m_axis_tready       : in  std_logic
    );
end entity axis_mux_128b;

architecture imp of axis_mux_128b is

begin

     
  m_axis_tdata    <= s0_axis_tdata  when aselect = "00" else 
                     s1_axis_tdata  when aselect = "01" else 
                     s2_axis_tdata  when aselect = "10" else 
                     s3_axis_tdata; 
 
  m_axis_tvalid   <= s0_axis_tvalid when aselect = "00" else 
                     s1_axis_tvalid when aselect = "01" else
                     s2_axis_tvalid when aselect = "10" else
                     s3_axis_tvalid;
    
  s0_axis_tready  <= m_axis_tready  when aselect = "00" else '0';
  s1_axis_tready  <= m_axis_tready  when aselect = "01" else '0';
  s2_axis_tready  <= m_axis_tready  when aselect = "10" else '0';
  s3_axis_tready  <= m_axis_tready  when aselect = "11" else '0';


end imp;