Find first and last set bit of a long integer: Difference between revisions
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There is nothing like this already built in, so we will roll our own, in low-level assembly. <br> |
There is nothing like this already built in, so we will roll our own, in low-level assembly. <br> |
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Of course you would normally hide this sort of stuff out of sight, far away from the usual day-to-day code. |
Of course you would normally hide this sort of stuff out of sight, far away from the usual day-to-day code. |
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<!--<lang Phix> |
<!--<lang Phix>--> |
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<span style="color: #008080;">without</span> <span style="color: #008080;">javascript_semantics</span> |
<span style="color: #008080;">without</span> <span style="color: #008080;">javascript_semantics</span> |
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<span style="color: #008080;">function</span> <span style="color: #000000;">msb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">)</span> |
<span style="color: #008080;">function</span> <span style="color: #000000;">msb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">)</span> |
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