<span class="comment">from: http://objectmix.com/vhdl/189970-2-powerof-x-where-x-fixed-point-value-2.html</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="comment"> </span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">to do 2^(x.y) first find</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment">2^x and 2^(x+1) through bit shifting 1 to t