span><span class="n">pchunk</span><span class="p">),</span><span class="k">INTENT</span><span class="p">(</span><span class="n">INOUT</span><span class="p">)</span>   <span class="kd">::</span> <span class="n">flag_cache</span>

  <span class="n">Y_PHI_mod</span><span class="o">=</span><span class="nb">modulo</span><span class="p">(</span><span class="n">Y_PHI</span><span class="p">,</span><span class="mf">2._rp</span><span class="o">*</span><span class="n">C_PI</span><span class="p">)</span>
  
  <span cla