n class="ss">(</span><span class="nv">sub</span><span class="ss">)</span> <span class="nv">program</span>. <span class="nv">When</span> <span class="nv">TRANSB</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="s">N</span><span class="s1">&#39;</span> <span class="nv">or</span> <span class="s1">&#39;</span><span class="s">n</span><span class="s1">&#39;</span> <span class="k">then</span>
        <span class="nv">LDB</span> <span class="nv">must</span> <span class="nv">be</span> <span c