forever

Цикл, исполняемый постоянно.

Синтаксис

forever
  [statement]

forever begin
  [multiple statements]
end

forever #[delay] begin
  [multiple statements]
end

Пример

module forever_tb;
  initial begin
    forever #1 begin
      $display("This will be printed forever ... %0t", $time);
    end
  end
  initial #5 $finish();
endmodule

Результат исполнения

This will be printed forever ... 1
This will be printed forever ... 2
This will be printed forever ... 3
This will be printed forever ... 4
This will be printed forever ... 5