;</div>
<div class="line">SquareWaveformGenerator    swg;</div>
<div class="line"> </div>
<div class="line"><span class="preprocessor">#include &quot;controllers.h&quot;</span></div>
<div class="line"><span class="preprocessor">#include &quot;soundchip.h&quot;</span></div>
<div class="line"> </div>
<div class="line"><span class="preprocessor">#define TOPMARGIN 6</span></div>
<div class="line"><span class="preprocessor">#define SIDEMARGIN 14</span></div>
<div class="line"><span class="preprocessor">#define I