verilator/test_regress/t/t_initial.v

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2003 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0

module t (
    input clk
);

  reg _ranit;

  `include "t_initial_inc.vh"

  // surefire lint_off STMINI
  initial assign user_loaded_value = 1;

  initial _ranit = 0;

  always @(posedge clk) begin
    if (!_ranit) begin
      _ranit <= 1;

      // Test $time
      // surefire lint_off CWECBB
      if ($time < 20) $write("time<20\n");
      // surefire lint_on  CWECBB

      // Test $write
      $write("[%0t] %m: User loaded ", $time);
      $display("%b", user_loaded_value);
      if (user_loaded_value != 1) $stop;

      // Test $c
`ifdef VERILATOR
      $c("VL_PRINTF(\"Hi From C++\\n\");");
`endif
      user_loaded_value <= 2;

      $write("*-* All Finished *-*\n");
      $finish;
    end
  end

endmodule