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//// Copyright (C) 2019 Authors and OPENCORES.ORG                 ////

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//////////////////////////////////////////////////////////////////////

module

  tb_base

  #(

    N = 1,

    realtime PERIODS[N],

    realtime ASSERT_TIME = (PERIODS[0] * 5) + (PERIODS[0] / 3)

  )

  (

    output bit tb_clk[N],

    output bit tb_aresetn,

    output bit tb_reset[N]

  );

  timeunit 1ns;

  timeprecision 100ps;

  // --------------------------------------------------------------------

  function void assert_reset(realtime reset_assert=ASSERT_TIME);

    fork

      begin

      tb_aresetn = 0;

      #reset_assert;

      tb_aresetn = 1;

      end

    join_none

  endfunction

  // --------------------------------------------------------------------

  bit disable_clks[N];

  generate

    for(genvar j = 0; j < N; j++) begin

      always

        if(disable_clks[j])

          tb_clk[j] = 0;

        else

          #(PERIODS[j]/2) tb_clk[j] = ~tb_clk[j];

    end

  endgenerate

  // --------------------------------------------------------------------

  generate

    for(genvar j = 0; j < N; j++) begin

      bit reset = 1;

      assign tb_reset[j] = reset;

      always @(posedge tb_clk[j] or negedge tb_aresetn)

        if(~tb_aresetn)

          reset = 1;

        else

          reset = 0;

    end

  endgenerate

  // --------------------------------------------------------------------

  initial

    assert_reset();

// --------------------------------------------------------------------

endmodule