tshift1(h);</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    h ^= hval;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="comment">// update ht, ht(a[0..k]) = p(~a[k])*x^k + ht(a[0..k-1])</span></div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    uint64_t hvalt(hvals[twinmask(fw)]);</div><div class="line