span><span class="p">.</span><span class="n">row</span><span class="p">.</span><span class="n">gt</span><span class="p">.</span><span class="n">P_VIEWPORT_HEIGHT</span><span class="p">)</span><span class="w"> </span><span class="k">exit </span><span class="n">CHECK</span><span class="w"></span>
<span class="w">      </span><span class="k">if</span><span class="p">(</span><span class="n">column</span><span class="p">.</span><span class="n">lt</span><span class="p">.</span><span class="mf">1.</span><span clas