>volatile</span> (<span class="stringliteral">"rdtsc"</span>:<span class="stringliteral">"=a"</span> (ticks.<a class="code" href="unionxed__union64__t.html#3a76b2209bad9582ba15e13bd2a099c3">s</a>.<a class="code" href="unionxed__union64__t.html#438b85bc7debffb519238d60a1a9ac59">lo32</a>), <span class="stringliteral">"=d"</span>(ticks.<a class="code" href="unionxed__union64__t.html#3a76b2209bad9582ba15e13bd2a099c3">s</a>.<a class="code" href="unionxed__union64__t.html#c38b7f196348971a1e3e0604beb40aae">hi32</a