sp;<span class="keyword">external</span>&nbsp;logxor&nbsp;:&nbsp;int64&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int64&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int64&nbsp;=&nbsp;<span class="string">"%int64_xor"</span><br>
&nbsp;&nbsp;<span class="keyword">val</span>&nbsp;lognot&nbsp;:&nbsp;int64&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int64<br>
&nbsp;&nbsp;<span class="keyword">external</span>&nbsp;shift_left&nbsp;:&nbsp;int64&nbsp;<span class="keywordsign">-&gt;</span>&nbsp;int&nbs