// ***************************************************************************
// ***************************************************************************
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// ***************************************************************************

`timescale 1ns/100ps

module util_extract #(

  parameter   CHANNELS = 2,
  parameter  DW = CHANNELS * 16) (

  input                   clk,

  input       [DW-1:0]    data_in,
  input       [DW-1:0]    data_in_trigger,
  input                   data_valid,

  output      [DW-1:0]    data_out,
  output  reg             trigger_out
);



   // loop variables

  genvar  n;

  reg trigger_d1;

  wire [15:0] trigger; // 16 maximum channels

  generate
  for (n = 0; n < CHANNELS; n = n + 1) begin: g_data_out
    assign data_out[(n+1)*16-1:n*16] = {data_in[(n*16)+14],data_in[(n*16)+14:n*16]};
    assign trigger[n] = data_in_trigger[(16*n)+15];
  end
  for (n = CHANNELS; n < 16; n = n + 1) begin: g_trigger_out
    assign trigger[n] = 1'b0;
  end
  endgenerate

  // compensate delay in the FIFO
  always @(posedge clk) begin
    if (data_valid == 1'b1) begin
      trigger_d1  <= |trigger;
      trigger_out <= trigger_d1;
    end
  end

endmodule

// ***************************************************************************
// ***************************************************************************