100 lines
6.0 KiB
HTML
100 lines
6.0 KiB
HTML
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<a href='https://github.com/akkartik/mu/blob/main/408float.mu'>https://github.com/akkartik/mu/blob/main/408float.mu</a>
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<pre id='vimCodeElement'>
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<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Some quick-n-dirty ways to create floats.</span>
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<span id="L2" class="LineNr"> 2 </span>
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<span id="L3" class="LineNr"> 3 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='408float.mu.html#L3'>fill-in-rational</a></span> _out: (addr float), nr: int, dr: int <span class="Delimiter">{</span>
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<span id="L4" class="LineNr"> 4 </span> <span class="PreProc">var</span> out/<span class="muRegEdi">edi</span>: (addr float) <span class="Special"><-</span> copy _out
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<span id="L5" class="LineNr"> 5 </span> <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="Special"><-</span> convert nr
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<span id="L6" class="LineNr"> 6 </span> <span class="PreProc">var</span> divisor/<span class="Constant">xmm1</span>: float <span class="Special"><-</span> convert dr
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<span id="L7" class="LineNr"> 7 </span> result <span class="Special"><-</span> divide divisor
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<span id="L8" class="LineNr"> 8 </span> copy-to *out, result
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<span id="L9" class="LineNr"> 9 </span><span class="Delimiter">}</span>
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<span id="L10" class="LineNr">10 </span>
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<span id="L11" class="LineNr">11 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='408float.mu.html#L11'>fill-in-sqrt</a></span> _out: (addr float), n: int <span class="Delimiter">{</span>
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<span id="L12" class="LineNr">12 </span> <span class="PreProc">var</span> out/<span class="muRegEdi">edi</span>: (addr float) <span class="Special"><-</span> copy _out
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<span id="L13" class="LineNr">13 </span> <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="Special"><-</span> convert n
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<span id="L14" class="LineNr">14 </span> result <span class="Special"><-</span> square-root result
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<span id="L15" class="LineNr">15 </span> copy-to *out, result
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<span id="L16" class="LineNr">16 </span><span class="Delimiter">}</span>
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<span id="L17" class="LineNr">17 </span>
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<span id="L18" class="LineNr">18 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='408float.mu.html#L18'>rational</a></span> nr: int, dr: int<span class="PreProc"> -> </span>_/<span class="Constant">xmm0</span>: float <span class="Delimiter">{</span>
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<span id="L19" class="LineNr">19 </span> <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="Special"><-</span> convert nr
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<span id="L20" class="LineNr">20 </span> <span class="PreProc">var</span> divisor/<span class="Constant">xmm1</span>: float <span class="Special"><-</span> convert dr
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<span id="L21" class="LineNr">21 </span> result <span class="Special"><-</span> divide divisor
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<span id="L22" class="LineNr">22 </span> <span class="PreProc">return</span> result
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<span id="L23" class="LineNr">23 </span><span class="Delimiter">}</span>
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<span id="L24" class="LineNr">24 </span>
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<span id="L25" class="LineNr">25 </span><span class="muComment"># n/m rounded up</span>
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<span id="L26" class="LineNr">26 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='408float.mu.html#L26'>scale-down-and-round-up</a></span> n: int, m: int<span class="PreProc"> -> </span>_/<span class="muRegEcx">ecx</span>: int <span class="Delimiter">{</span>
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<span id="L27" class="LineNr">27 </span> <span class="PreProc">var</span> result/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy n
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<span id="L28" class="LineNr">28 </span> result <span class="Special"><-</span> add m
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<span id="L29" class="LineNr">29 </span> result <span class="Special"><-</span> decrement
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<span id="L30" class="LineNr">30 </span> <span class="PreProc">var</span> result-f/<span class="Constant">xmm0</span>: float <span class="Special"><-</span> convert result
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<span id="L31" class="LineNr">31 </span> <span class="PreProc">var</span> m-f/<span class="Constant">xmm1</span>: float <span class="Special"><-</span> convert m
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<span id="L32" class="LineNr">32 </span> result-f <span class="Special"><-</span> divide m-f
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<span id="L33" class="LineNr">33 </span> result <span class="Special"><-</span> truncate result-f
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<span id="L34" class="LineNr">34 </span> <span class="PreProc">return</span> result
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<span id="L35" class="LineNr">35 </span><span class="Delimiter">}</span>
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</pre>
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