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+<title>Mu - 506math.mu</title>
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+<a href='https://github.com/akkartik/mu/blob/main/506math.mu'>https://github.com/akkartik/mu/blob/main/506math.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='506math.mu.html#L1'>abs</a></span> n: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L2" class="LineNr"> 2 </span>  compare n, <span class="Constant">0</span>
+<span id="L3" class="LineNr"> 3 </span>  <span class="Delimiter">{</span>
+<span id="L4" class="LineNr"> 4 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L5" class="LineNr"> 5 </span>    negate n
+<span id="L6" class="LineNr"> 6 </span>  <span class="Delimiter">}</span>
+<span id="L7" class="LineNr"> 7 </span>  <span class="PreProc">return</span> n
+<span id="L8" class="LineNr"> 8 </span><span class="Delimiter">}</span>
+<span id="L9" class="LineNr"> 9 </span>
+<span id="L10" class="LineNr">10 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='506math.mu.html#L10'>sgn</a></span> n: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L11" class="LineNr">11 </span>  compare n, <span class="Constant">0</span>
+<span id="L12" class="LineNr">12 </span>  <span class="Delimiter">{</span>
+<span id="L13" class="LineNr">13 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L14" class="LineNr">14 </span>    <span class="PreProc">return</span> <span class="Constant">1</span>
+<span id="L15" class="LineNr">15 </span>  <span class="Delimiter">}</span>
+<span id="L16" class="LineNr">16 </span>  <span class="Delimiter">{</span>
+<span id="L17" class="LineNr">17 </span>    <span class="PreProc">break-if-&gt;=</span>
+<span id="L18" class="LineNr">18 </span>    <span class="PreProc">return</span> <span class="Constant">-1</span>
+<span id="L19" class="LineNr">19 </span>  <span class="Delimiter">}</span>
+<span id="L20" class="LineNr">20 </span>  <span class="PreProc">return</span> <span class="Constant">0</span>
+<span id="L21" class="LineNr">21 </span><span class="Delimiter">}</span>
+<span id="L22" class="LineNr">22 </span>
+<span id="L23" class="LineNr">23 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='506math.mu.html#L23'>shift-left-by</a></span> n: int, bits: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L24" class="LineNr">24 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy bits
+<span id="L25" class="LineNr">25 </span>  <span class="Delimiter">{</span>
+<span id="L26" class="LineNr">26 </span>    compare i, <span class="Constant">0</span>
+<span id="L27" class="LineNr">27 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L28" class="LineNr">28 </span>    shift-left n, <span class="Constant">1</span>
+<span id="L29" class="LineNr">29 </span>    i <span class="Special">&lt;-</span> decrement
+<span id="L30" class="LineNr">30 </span>    <span class="PreProc">loop</span>
+<span id="L31" class="LineNr">31 </span>  <span class="Delimiter">}</span>
+<span id="L32" class="LineNr">32 </span>  <span class="PreProc">return</span> n
+<span id="L33" class="LineNr">33 </span><span class="Delimiter">}</span>
+<span id="L34" class="LineNr">34 </span>
+<span id="L35" class="LineNr">35 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='506math.mu.html#L35'>shift-right-by</a></span> n: int, bits: int<span class="PreProc"> -&gt; </span>_/<span class="Constant">eax</span>: int <span class="Delimiter">{</span>
+<span id="L36" class="LineNr">36 </span>  <span class="PreProc">var</span> i/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy bits
+<span id="L37" class="LineNr">37 </span>  <span class="Delimiter">{</span>
+<span id="L38" class="LineNr">38 </span>    compare i, <span class="Constant">0</span>
+<span id="L39" class="LineNr">39 </span>    <span class="PreProc">break-if-&lt;=</span>
+<span id="L40" class="LineNr">40 </span>    shift-right n, <span class="Constant">1</span>
+<span id="L41" class="LineNr">41 </span>    i <span class="Special">&lt;-</span> decrement
+<span id="L42" class="LineNr">42 </span>    <span class="PreProc">loop</span>
+<span id="L43" class="LineNr">43 </span>  <span class="Delimiter">}</span>
+<span id="L44" class="LineNr">44 </span>  <span class="PreProc">return</span> n
+<span id="L45" class="LineNr">45 </span><span class="Delimiter">}</span>
+<span id="L46" class="LineNr">46 </span>
+<span id="L47" class="LineNr">47 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='506math.mu.html#L47'>clear-lowest-bits</a></span> _n: (addr int), bits: int <span class="Delimiter">{</span>
+<span id="L48" class="LineNr">48 </span>  <span class="PreProc">var</span> dest/<span class="Constant">edi</span>: (addr int) <span class="Special">&lt;-</span> copy _n
+<span id="L49" class="LineNr">49 </span>  <span class="PreProc">var</span> n/<span class="Constant">eax</span>: int <span class="Special">&lt;-</span> copy *dest
+<span id="L50" class="LineNr">50 </span>  n <span class="Special">&lt;-</span> <a href='506math.mu.html#L35'>shift-right-by</a> n, bits
+<span id="L51" class="LineNr">51 </span>  n <span class="Special">&lt;-</span> <a href='506math.mu.html#L23'>shift-left-by</a> n, bits
+<span id="L52" class="LineNr">52 </span>  copy-to *dest, n
+<span id="L53" class="LineNr">53 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
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