entity ch_03_05 is

end entity ch_03_05;


----------------------------------------------------------------


architecture test of ch_03_05 is

  type phase_type is (wash, other_phase);
  signal phase : phase_type := other_phase;

  type cycle_type is (delicate_cycle, other_cycle);
  signal cycle_select : cycle_type := delicate_cycle;

  type speed_type is (slow, fast);
  signal agitator_speed : speed_type := slow;

  signal agitator_on : boolean := false;

begin

  process_3_1_e : process (phase, cycle_select) is
  begin

    -- code from book:

    if phase = wash then
      if cycle_select = delicate_cycle then
        agitator_speed <= slow;
      else
        agitator_speed <= fast;
      end if;
      agitator_on <= true;
    end if;

    -- end of code from book

  end process process_3_1_e;

  stimulus : process is
  begin
    cycle_select <= other_cycle;	wait for 100 ns;
    phase <= wash;			wait for 100 ns;
    cycle_select <= delicate_cycle;	wait for 100 ns;
    cycle_select <= other_cycle;	wait for 100 ns;
    phase <= other_phase;		wait for 100 ns;

    wait;
  end process stimulus;

end architecture test;

<div align="center"><br /><script type="text/javascript"><!--
google_ad_client = "pub-7293844627074885";
//468x60, Created at 07. 11. 25
google_ad_slot = "8619794253";
google_ad_width = 468;
google_ad_height = 60;
//--></script>
<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script><br />&nbsp;</div>