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<a href='https://github.com/akkartik/mu/blob/main/505colors.mu'>https://github.com/akkartik/mu/blob/main/505colors.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='505colors.mu.html#L1'>nearest-color-euclidean</a></span> r: int, g: int, b: int<span class="PreProc"> -> </span>_/eax: int <span class="Delimiter">{</span>
<span id="L2" class="LineNr"> 2 </span> <span class="PreProc">var</span> result/<span class="muRegEdi">edi</span>: int <span class="Special"><-</span> copy <span class="Constant">0x100</span>/invalid
<span id="L3" class="LineNr"> 3 </span> <span class="PreProc">var</span> max-distance/<span class="muRegEsi">esi</span>: int <span class="Special"><-</span> copy <span class="Constant">0x30000</span>/max <span class="muComment"># 3 * 0x100*0x100</span>
<span id="L4" class="LineNr"> 4 </span> <span class="PreProc">var</span> r2/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L5" class="LineNr"> 5 </span> <span class="PreProc">var</span> g2/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L6" class="LineNr"> 6 </span> <span class="PreProc">var</span> b2/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L7" class="LineNr"> 7 </span> <span class="PreProc">var</span> color/eax: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L8" class="LineNr"> 8 </span> <span class="Delimiter">{</span>
<span id="L9" class="LineNr"> 9 </span> compare color, <span class="Constant">0x100</span>
<span id="L10" class="LineNr"> 10 </span> <span class="PreProc">break-if->=</span>
<span id="L11" class="LineNr"> 11 </span> $nearest-color-euclidean:body: <span class="Delimiter">{</span>
<span id="L12" class="LineNr"> 12 </span> r2, g2, b2 <span class="Special"><-</span> <a href='316colors.subx.html#L7'>color-rgb</a> color
<span id="L13" class="LineNr"> 13 </span> <span class="Delimiter">{</span>
<span id="L14" class="LineNr"> 14 </span> <span class="PreProc">var</span> curr-distance/eax: int <span class="Special"><-</span> <a href='505colors.mu.html#L27'>euclidean-distance-squared</a> r, g, b, r2, g2, b2
<span id="L15" class="LineNr"> 15 </span> compare curr-distance, max-distance
<span id="L16" class="LineNr"> 16 </span> <span class="PreProc">break-if->=</span> $nearest-color-euclidean:body
<span id="L17" class="LineNr"> 17 </span> max-distance <span class="Special"><-</span> copy curr-distance
<span id="L18" class="LineNr"> 18 </span> <span class="Delimiter">}</span>
<span id="L19" class="LineNr"> 19 </span> result <span class="Special"><-</span> copy color
<span id="L20" class="LineNr"> 20 </span> <span class="Delimiter">}</span>
<span id="L21" class="LineNr"> 21 </span> color <span class="Special"><-</span> increment
<span id="L22" class="LineNr"> 22 </span> <span class="PreProc">loop</span>
<span id="L23" class="LineNr"> 23 </span> <span class="Delimiter">}</span>
<span id="L24" class="LineNr"> 24 </span> <span class="PreProc">return</span> result
<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">}</span>
<span id="L26" class="LineNr"> 26 </span>
<span id="L27" class="LineNr"> 27 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='505colors.mu.html#L27'>euclidean-distance-squared</a></span> r1: int, g1: int, b1: int, r2: int, g2: int, b2: int<span class="PreProc"> -> </span>_/eax: int <span class="Delimiter">{</span>
<span id="L28" class="LineNr"> 28 </span> <span class="PreProc">var</span> result/<span class="muRegEdi">edi</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L29" class="LineNr"> 29 </span> <span class="muComment"># red</span>
<span id="L30" class="LineNr"> 30 </span> <span class="PreProc">var</span> tmp/eax: int <span class="Special"><-</span> copy r1
<span id="L31" class="LineNr"> 31 </span> tmp <span class="Special"><-</span> subtract r2
<span id="L32" class="LineNr"> 32 </span> tmp <span class="Special"><-</span> multiply tmp
<span id="L33" class="LineNr"> 33 </span> result <span class="Special"><-</span> add tmp
<span id="L34" class="LineNr"> 34 </span> <span class="muComment"># green</span>
<span id="L35" class="LineNr"> 35 </span> tmp <span class="Special"><-</span> copy g1
<span id="L36" class="LineNr"> 36 </span> tmp <span class="Special"><-</span> subtract g2
<span id="L37" class="LineNr"> 37 </span> tmp <span class="Special"><-</span> multiply tmp
<span id="L38" class="LineNr"> 38 </span> result <span class="Special"><-</span> add tmp
<span id="L39" class="LineNr"> 39 </span> <span class="muComment"># blue</span>
<span id="L40" class="LineNr"> 40 </span> tmp <span class="Special"><-</span> copy b1
<span id="L41" class="LineNr"> 41 </span> tmp <span class="Special"><-</span> subtract b2
<span id="L42" class="LineNr"> 42 </span> tmp <span class="Special"><-</span> multiply tmp
<span id="L43" class="LineNr"> 43 </span> result <span class="Special"><-</span> add tmp
<span id="L44" class="LineNr"> 44 </span> <span class="PreProc">return</span> result
<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="muComment"># Hue/saturation/luminance for an rgb triple.</span>
<span id="L48" class="LineNr"> 48 </span><span class="muComment"># rgb are in [0, 256)</span>
<span id="L49" class="LineNr"> 49 </span><span class="muComment"># hsl are also returned in [0, 256)</span>
<span id="L50" class="LineNr"> 50 </span><span class="muComment"># from <a href="https://www.niwa.nu/2013/05/math-behind-colorspace-conversions-rgb-hsl">https://www.niwa.nu/2013/05/math-behind-colorspace-conversions-rgb-hsl</a></span>
<span id="L51" class="LineNr"> 51 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='505colors.mu.html#L51'>hsl</a></span> r: int, g: int, b: int<span class="PreProc"> -> </span>_/<span class="muRegEcx">ecx</span>: int, _/<span class="muRegEdx">edx</span>: int, _/<span class="muRegEbx">ebx</span>: int <span class="Delimiter">{</span>
<span id="L52" class="LineNr"> 52 </span> <span class="PreProc">var</span> _max/eax: int <span class="Special"><-</span> <a href='505colors.mu.html#L340'>maximum</a> r, g
<span id="L53" class="LineNr"> 53 </span> _max <span class="Special"><-</span> <a href='505colors.mu.html#L340'>maximum</a> _max, b
<span id="L54" class="LineNr"> 54 </span> <span class="PreProc">var</span> max/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy _max
<span id="L55" class="LineNr"> 55 </span> <span class="PreProc">var</span> _min/eax: int <span class="Special"><-</span> <a href='505colors.mu.html#L350'>minimum</a> r, g
<span id="L56" class="LineNr"> 56 </span> _min <span class="Special"><-</span> <a href='505colors.mu.html#L350'>minimum</a> _min, b
<span id="L57" class="LineNr"> 57 </span> <span class="PreProc">var</span> min/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy _min
<span id="L58" class="LineNr"> 58 </span> <span class="PreProc">var</span> luminance/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy min
<span id="L59" class="LineNr"> 59 </span> luminance <span class="Special"><-</span> add max
<span id="L60" class="LineNr"> 60 </span> luminance <span class="Special"><-</span> shift-right <span class="Constant">1</span> <span class="muComment"># TODO: round up instead of down</span>
<span id="L61" class="LineNr"> 61 </span> <span class="muComment"># if rgb are all equal, it's a shade of grey</span>
<span id="L62" class="LineNr"> 62 </span> compare min, max
<span id="L63" class="LineNr"> 63 </span> <span class="Delimiter">{</span>
<span id="L64" class="LineNr"> 64 </span> <span class="PreProc">break-if-!=</span>
<span id="L65" class="LineNr"> 65 </span> <span class="PreProc">return</span> <span class="Constant">0</span>, <span class="Constant">0</span>, luminance
<span id="L66" class="LineNr"> 66 </span> <span class="Delimiter">}</span>
<span id="L67" class="LineNr"> 67 </span> <span class="muComment"># saturation =</span>
<span id="L68" class="LineNr"> 68 </span> <span class="muComment"># luminance < 128 | 255*(max-min)/ (max+min)</span>
<span id="L69" class="LineNr"> 69 </span> <span class="muComment"># otherwise | 255*(max-min)/(2*255 - (max+min))</span>
<span id="L70" class="LineNr"> 70 </span> <span class="PreProc">var</span> nr/<span class="muRegEsi">esi</span>: int <span class="Special"><-</span> copy max
<span id="L71" class="LineNr"> 71 </span> nr <span class="Special"><-</span> subtract min
<span id="L72" class="LineNr"> 72 </span> <span class="PreProc">var</span> dr/eax: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L73" class="LineNr"> 73 </span> compare luminance, <span class="Constant">0x80</span>
<span id="L74" class="LineNr"> 74 </span> <span class="Delimiter">{</span>
<span id="L75" class="LineNr"> 75 </span> <span class="PreProc">break-if->=</span>
<span id="L76" class="LineNr"> 76 </span> dr <span class="Special"><-</span> copy max
<span id="L77" class="LineNr"> 77 </span> dr <span class="Special"><-</span> add min
<span id="L78" class="LineNr"> 78 </span> <span class="Delimiter">}</span>
<span id="L79" class="LineNr"> 79 </span> <span class="Delimiter">{</span>
<span id="L80" class="LineNr"> 80 </span> <span class="PreProc">break-if-<</span>
<span id="L81" class="LineNr"> 81 </span> dr <span class="Special"><-</span> copy <span class="Constant">0xff</span>
<span id="L82" class="LineNr"> 82 </span> dr <span class="Special"><-</span> shift-left <span class="Constant">1</span>
<span id="L83" class="LineNr"> 83 </span> dr <span class="Special"><-</span> subtract max
<span id="L84" class="LineNr"> 84 </span> dr <span class="Special"><-</span> subtract min
<span id="L85" class="LineNr"> 85 </span> <span class="Delimiter">}</span>
<span id="L86" class="LineNr"> 86 </span> <span class="PreProc">var</span> q/<span class="Constant">xmm0</span>: float <span class="Special"><-</span> convert nr
<span id="L87" class="LineNr"> 87 </span> <span class="PreProc">var</span> tmp/<span class="Constant">xmm1</span>: float <span class="Special"><-</span> convert dr
<span id="L88" class="LineNr"> 88 </span> q <span class="Special"><-</span> divide tmp
<span id="L89" class="LineNr"> 89 </span> <span class="PreProc">var</span> int-255/eax: int <span class="Special"><-</span> copy <span class="Constant">0xff</span>
<span id="L90" class="LineNr"> 90 </span> tmp <span class="Special"><-</span> convert int-255
<span id="L91" class="LineNr"> 91 </span> q <span class="Special"><-</span> multiply tmp
<span id="L92" class="LineNr"> 92 </span> <span class="PreProc">var</span> saturation/<span class="muRegEsi">esi</span>: int <span class="Special"><-</span> convert q
<span id="L93" class="LineNr"> 93 </span> <span class="muComment"># hue = </span>
<span id="L94" class="LineNr"> 94 </span> <span class="muComment"># red is max | 256.0/6* (g-b)/(max-min)</span>
<span id="L95" class="LineNr"> 95 </span> <span class="muComment"># green is max | 256.0/6*(2.0 + (b-r)/(max-min))</span>
<span id="L96" class="LineNr"> 96 </span> <span class="muComment"># blue is max | 256.0/6*(4.0 + (r-g)/(max-min))</span>
<span id="L97" class="LineNr"> 97 </span> <span class="PreProc">var</span> zero/eax: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L98" class="LineNr"> 98 </span> <span class="PreProc">var</span> hue-f/<span class="Constant">xmm0</span>: float <span class="Special"><-</span> convert zero
<span id="L99" class="LineNr"> 99 </span> <span class="PreProc">var</span> dr/eax: int <span class="Special"><-</span> copy max
<span id="L100" class="LineNr">100 </span> dr <span class="Special"><-</span> subtract min
<span id="L101" class="LineNr">101 </span> <span class="PreProc">var</span> dr-f/<span class="Constant">xmm1</span>: float <span class="Special"><-</span> convert dr
<span id="L102" class="LineNr">102 </span> $hsl:compute-hue-normalized: <span class="Delimiter">{</span>
<span id="L103" class="LineNr">103 </span> compare r, max
<span id="L104" class="LineNr">104 </span> <span class="Delimiter">{</span>
<span id="L105" class="LineNr">105 </span> <span class="PreProc">break-if-!=</span>
<span id="L106" class="LineNr">106 </span> <span class="PreProc">var</span> nr/eax: int <span class="Special"><-</span> copy g
<span id="L107" class="LineNr">107 </span> nr <span class="Special"><-</span> subtract b
<span id="L108" class="LineNr">108 </span> hue-f <span class="Special"><-</span> convert nr
<span id="L109" class="LineNr">109 </span> hue-f <span class="Special"><-</span> divide dr-f
<span id="L110" class="LineNr">110 </span> <span class="PreProc">break</span> $hsl:compute-hue-normalized
<span id="L111" class="LineNr">111 </span> <span class="Delimiter">}</span>
<span id="L112" class="LineNr">112 </span> compare g, max
<span id="L113" class="LineNr">113 </span> <span class="Delimiter">{</span>
<span id="L114" class="LineNr">114 </span> <span class="PreProc">break-if-!=</span>
<span id="L115" class="LineNr">115 </span> <span class="PreProc">var</span> nr/eax: int <span class="Special"><-</span> copy b
<span id="L116" class="LineNr">116 </span> nr <span class="Special"><-</span> subtract r
<span id="L117" class="LineNr">117 </span> <span class="PreProc">var</span> f/<span class="Constant">xmm2</span>: float <span class="Special"><-</span> convert nr
<span id="L118" class="LineNr">118 </span> f <span class="Special"><-</span> divide dr-f
<span id="L119" class="LineNr">119 </span> <span class="PreProc">var</span> two/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">2</span>
<span id="L120" class="LineNr">120 </span> hue-f <span class="Special"><-</span> convert two
<span id="L121" class="LineNr">121 </span> hue-f <span class="Special"><-</span> add f
<span id="L122" class="LineNr">122 </span> <span class="PreProc">break</span> $hsl:compute-hue-normalized
<span id="L123" class="LineNr">123 </span> <span class="Delimiter">}</span>
<span id="L124" class="LineNr">124 </span> compare b, max
<span id="L125" class="LineNr">125 </span> <span class="Delimiter">{</span>
<span id="L126" class="LineNr">126 </span> <span class="PreProc">break-if-!=</span>
<span id="L127" class="LineNr">127 </span> <span class="PreProc">var</span> nr/eax: int <span class="Special"><-</span> copy r
<span id="L128" class="LineNr">128 </span> nr <span class="Special"><-</span> subtract g
<span id="L129" class="LineNr">129 </span> <span class="PreProc">var</span> f/<span class="Constant">xmm2</span>: float <span class="Special"><-</span> convert nr
<span id="L130" class="LineNr">130 </span> f <span class="Special"><-</span> divide dr-f
<span id="L131" class="LineNr">131 </span> <span class="PreProc">var</span> two/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">4</span>
<span id="L132" class="LineNr">132 </span> hue-f <span class="Special"><-</span> convert two
<span id="L133" class="LineNr">133 </span> hue-f <span class="Special"><-</span> add f
<span id="L134" class="LineNr">134 </span> <span class="PreProc">break</span> $hsl:compute-hue-normalized
<span id="L135" class="LineNr">135 </span> <span class="Delimiter">}</span>
<span id="L136" class="LineNr">136 </span> <span class="Delimiter">}</span>
<span id="L137" class="LineNr">137 </span> <span class="PreProc">var</span> int-256/eax: int <span class="Special"><-</span> copy <span class="Constant">0x100</span>
<span id="L138" class="LineNr">138 </span> <span class="PreProc">var</span> scaling-factor/<span class="Constant">xmm1</span>: float <span class="Special"><-</span> convert int-256
<span id="L139" class="LineNr">139 </span> <span class="PreProc">var</span> int-6/eax: int <span class="Special"><-</span> copy <span class="Constant">6</span>
<span id="L140" class="LineNr">140 </span> <span class="PreProc">var</span> six-f/<span class="Constant">xmm2</span>: float <span class="Special"><-</span> convert int-6
<span id="L141" class="LineNr">141 </span> scaling-factor <span class="Special"><-</span> divide six-f
<span id="L142" class="LineNr">142 </span> hue-f <span class="Special"><-</span> multiply scaling-factor
<span id="L143" class="LineNr">143 </span> <span class="PreProc">var</span> hue/eax: int <span class="Special"><-</span> convert hue-f
<span id="L144" class="LineNr">144 </span> <span class="muComment"># if hue < 0, hue = 256 - hue</span>
<span id="L145" class="LineNr">145 </span> compare hue, <span class="Constant">0</span>
<span id="L146" class="LineNr">146 </span> <span class="Delimiter">{</span>
<span id="L147" class="LineNr">147 </span> <span class="PreProc">break-if->=</span>
<span id="L148" class="LineNr">148 </span> <span class="PreProc">var</span> tmp/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0x100</span>
<span id="L149" class="LineNr">149 </span> tmp <span class="Special"><-</span> subtract hue
<span id="L150" class="LineNr">150 </span> hue <span class="Special"><-</span> copy tmp
<span id="L151" class="LineNr">151 </span> <span class="Delimiter">}</span>
<span id="L152" class="LineNr">152 </span> <span class="PreProc">return</span> hue, saturation, luminance
<span id="L153" class="LineNr">153 </span><span class="Delimiter">}</span>
<span id="L154" class="LineNr">154 </span>
<span id="L155" class="LineNr">155 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L155'>test-hsl-black</a></span> <span class="Delimiter">{</span>
<span id="L156" class="LineNr">156 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L157" class="LineNr">157 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L158" class="LineNr">158 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L159" class="LineNr">159 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">0</span>
<span id="L160" class="LineNr">160 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L155'>test-hsl-black</a>/hue"</span>
<span id="L161" class="LineNr">161 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L155'>test-hsl-black</a>/saturation"</span>
<span id="L162" class="LineNr">162 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L155'>test-hsl-black</a>/luminance"</span>
<span id="L163" class="LineNr">163 </span><span class="Delimiter">}</span>
<span id="L164" class="LineNr">164 </span>
<span id="L165" class="LineNr">165 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L165'>test-hsl-white</a></span> <span class="Delimiter">{</span>
<span id="L166" class="LineNr">166 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L167" class="LineNr">167 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L168" class="LineNr">168 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L169" class="LineNr">169 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0xff</span>, <span class="Constant">0xff</span>, <span class="Constant">0xff</span>
<span id="L170" class="LineNr">170 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L165'>test-hsl-white</a>/hue"</span>
<span id="L171" class="LineNr">171 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L165'>test-hsl-white</a>/saturation"</span>
<span id="L172" class="LineNr">172 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0xff</span>, <span class="Constant">"F - <a href='505colors.mu.html#L165'>test-hsl-white</a>/luminance"</span>
<span id="L173" class="LineNr">173 </span><span class="Delimiter">}</span>
<span id="L174" class="LineNr">174 </span>
<span id="L175" class="LineNr">175 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L175'>test-hsl-grey</a></span> <span class="Delimiter">{</span>
<span id="L176" class="LineNr">176 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L177" class="LineNr">177 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L178" class="LineNr">178 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L179" class="LineNr">179 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0x30</span>, <span class="Constant">0x30</span>, <span class="Constant">0x30</span>
<span id="L180" class="LineNr">180 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L175'>test-hsl-grey</a>/hue"</span>
<span id="L181" class="LineNr">181 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L175'>test-hsl-grey</a>/saturation"</span>
<span id="L182" class="LineNr">182 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0x30</span>, <span class="Constant">"F - <a href='505colors.mu.html#L175'>test-hsl-grey</a>/luminance"</span>
<span id="L183" class="LineNr">183 </span><span class="Delimiter">}</span>
<span id="L184" class="LineNr">184 </span>
<span id="L185" class="LineNr">185 </span><span class="muComment"># red hues: 0-0x54</span>
<span id="L186" class="LineNr">186 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L186'>test-hsl-slightly-red</a></span> <span class="Delimiter">{</span>
<span id="L187" class="LineNr">187 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L188" class="LineNr">188 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L189" class="LineNr">189 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L190" class="LineNr">190 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0xff</span>, <span class="Constant">0xfe</span>, <span class="Constant">0xfe</span>
<span id="L191" class="LineNr">191 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L186'>test-hsl-slightly-red</a>/hue"</span>
<span id="L192" class="LineNr">192 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0xff</span>, <span class="Constant">"F - <a href='505colors.mu.html#L186'>test-hsl-slightly-red</a>/saturation"</span>
<span id="L193" class="LineNr">193 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0xfe</span>, <span class="Constant">"F - <a href='505colors.mu.html#L186'>test-hsl-slightly-red</a>/luminance"</span> <span class="muComment"># TODO: should round up</span>
<span id="L194" class="LineNr">194 </span><span class="Delimiter">}</span>
<span id="L195" class="LineNr">195 </span>
<span id="L196" class="LineNr">196 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L196'>test-hsl-extremely-red</a></span> <span class="Delimiter">{</span>
<span id="L197" class="LineNr">197 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L198" class="LineNr">198 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L199" class="LineNr">199 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L200" class="LineNr">200 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0xff</span>, <span class="Constant">0</span>, <span class="Constant">0</span>
<span id="L201" class="LineNr">201 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0</span>, <span class="Constant">"F - <a href='505colors.mu.html#L196'>test-hsl-extremely-red</a>/hue"</span>
<span id="L202" class="LineNr">202 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0xff</span>, <span class="Constant">"F - <a href='505colors.mu.html#L196'>test-hsl-extremely-red</a>/saturation"</span>
<span id="L203" class="LineNr">203 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0x7f</span>, <span class="Constant">"F - <a href='505colors.mu.html#L196'>test-hsl-extremely-red</a>/luminance"</span> <span class="muComment"># TODO: should round up</span>
<span id="L204" class="LineNr">204 </span><span class="Delimiter">}</span>
<span id="L205" class="LineNr">205 </span>
<span id="L206" class="LineNr">206 </span><span class="muComment"># green hues: 0x55-0xaa</span>
<span id="L207" class="LineNr">207 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L207'>test-hsl-slightly-green</a></span> <span class="Delimiter">{</span>
<span id="L208" class="LineNr">208 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L209" class="LineNr">209 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L210" class="LineNr">210 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L211" class="LineNr">211 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0xfe</span>, <span class="Constant">0xff</span>, <span class="Constant">0xfe</span>
<span id="L212" class="LineNr">212 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0x55</span>, <span class="Constant">"F - <a href='505colors.mu.html#L207'>test-hsl-slightly-green</a>/hue"</span>
<span id="L213" class="LineNr">213 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0xff</span>, <span class="Constant">"F - <a href='505colors.mu.html#L207'>test-hsl-slightly-green</a>/saturation"</span>
<span id="L214" class="LineNr">214 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0xfe</span>, <span class="Constant">"F - <a href='505colors.mu.html#L207'>test-hsl-slightly-green</a>/luminance"</span> <span class="muComment"># TODO: should round up</span>
<span id="L215" class="LineNr">215 </span><span class="Delimiter">}</span>
<span id="L216" class="LineNr">216 </span>
<span id="L217" class="LineNr">217 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L217'>test-hsl-extremely-green</a></span> <span class="Delimiter">{</span>
<span id="L218" class="LineNr">218 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L219" class="LineNr">219 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L220" class="LineNr">220 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L221" class="LineNr">221 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0</span>, <span class="Constant">0xff</span>, <span class="Constant">0</span>
<span id="L222" class="LineNr">222 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0x55</span>, <span class="Constant">"F - <a href='505colors.mu.html#L217'>test-hsl-extremely-green</a>/hue"</span>
<span id="L223" class="LineNr">223 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0xff</span>, <span class="Constant">"F - <a href='505colors.mu.html#L217'>test-hsl-extremely-green</a>/saturation"</span>
<span id="L224" class="LineNr">224 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0x7f</span>, <span class="Constant">"F - <a href='505colors.mu.html#L217'>test-hsl-extremely-green</a>/luminance"</span> <span class="muComment"># TODO: should round up</span>
<span id="L225" class="LineNr">225 </span><span class="Delimiter">}</span>
<span id="L226" class="LineNr">226 </span>
<span id="L227" class="LineNr">227 </span><span class="muComment"># blue hues: 0xab-0xff</span>
<span id="L228" class="LineNr">228 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L228'>test-hsl-slightly-blue</a></span> <span class="Delimiter">{</span>
<span id="L229" class="LineNr">229 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L230" class="LineNr">230 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L231" class="LineNr">231 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L232" class="LineNr">232 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0xfe</span>, <span class="Constant">0xfe</span>, <span class="Constant">0xff</span>
<span id="L233" class="LineNr">233 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0xab</span>, <span class="Constant">"F - <a href='505colors.mu.html#L228'>test-hsl-slightly-blue</a>/hue"</span>
<span id="L234" class="LineNr">234 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0xff</span>, <span class="Constant">"F - <a href='505colors.mu.html#L228'>test-hsl-slightly-blue</a>/saturation"</span>
<span id="L235" class="LineNr">235 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0xfe</span>, <span class="Constant">"F - <a href='505colors.mu.html#L228'>test-hsl-slightly-blue</a>/luminance"</span> <span class="muComment"># TODO: should round up</span>
<span id="L236" class="LineNr">236 </span><span class="Delimiter">}</span>
<span id="L237" class="LineNr">237 </span>
<span id="L238" class="LineNr">238 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L238'>test-hsl-extremely-blue</a></span> <span class="Delimiter">{</span>
<span id="L239" class="LineNr">239 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L240" class="LineNr">240 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L241" class="LineNr">241 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L242" class="LineNr">242 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0</span>, <span class="Constant">0</span>, <span class="Constant">0xff</span>
<span id="L243" class="LineNr">243 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0xab</span>, <span class="Constant">"F - <a href='505colors.mu.html#L238'>test-hsl-extremely-blue</a>/hue"</span>
<span id="L244" class="LineNr">244 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0xff</span>, <span class="Constant">"F - <a href='505colors.mu.html#L238'>test-hsl-extremely-blue</a>/saturation"</span>
<span id="L245" class="LineNr">245 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0x7f</span>, <span class="Constant">"F - <a href='505colors.mu.html#L238'>test-hsl-extremely-blue</a>/luminance"</span> <span class="muComment"># TODO: should round up</span>
<span id="L246" class="LineNr">246 </span><span class="Delimiter">}</span>
<span id="L247" class="LineNr">247 </span>
<span id="L248" class="LineNr">248 </span><span class="muComment"># cyan: 0x7f</span>
<span id="L249" class="LineNr">249 </span>
<span id="L250" class="LineNr">250 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L250'>test-hsl-cyan</a></span> <span class="Delimiter">{</span>
<span id="L251" class="LineNr">251 </span> <span class="PreProc">var</span> h/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L252" class="LineNr">252 </span> <span class="PreProc">var</span> s/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L253" class="LineNr">253 </span> <span class="PreProc">var</span> l/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L254" class="LineNr">254 </span> h, s, l <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> <span class="Constant">0</span>, <span class="Constant">0xff</span>, <span class="Constant">0xff</span>
<span id="L255" class="LineNr">255 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> h, <span class="Constant">0x80</span>, <span class="Constant">"F - <a href='505colors.mu.html#L250'>test-hsl-cyan</a>/hue"</span>
<span id="L256" class="LineNr">256 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> s, <span class="Constant">0xff</span>, <span class="Constant">"F - <a href='505colors.mu.html#L250'>test-hsl-cyan</a>/saturation"</span>
<span id="L257" class="LineNr">257 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> l, <span class="Constant">0x7f</span>, <span class="Constant">"F - <a href='505colors.mu.html#L250'>test-hsl-cyan</a>/luminance"</span> <span class="muComment"># TODO: should round up</span>
<span id="L258" class="LineNr">258 </span><span class="Delimiter">}</span>
<span id="L259" class="LineNr">259 </span>
<span id="L260" class="LineNr">260 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a></span> h: int, s: int, l: int<span class="PreProc"> -> </span>_/eax: int <span class="Delimiter">{</span>
<span id="L261" class="LineNr">261 </span> <span class="PreProc">var</span> result/<span class="muRegEdi">edi</span>: int <span class="Special"><-</span> copy <span class="Constant">0x100</span>/invalid
<span id="L262" class="LineNr">262 </span> <span class="PreProc">var</span> max-distance/<span class="muRegEsi">esi</span>: int <span class="Special"><-</span> copy <span class="Constant">0x30000</span>/max <span class="muComment"># 3 * 0x100*0x100</span>
<span id="L263" class="LineNr">263 </span> <span class="PreProc">var</span> a/<span class="muRegEcx">ecx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L264" class="LineNr">264 </span> <span class="PreProc">var</span> b/<span class="muRegEdx">edx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L265" class="LineNr">265 </span> <span class="PreProc">var</span> c/<span class="muRegEbx">ebx</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L266" class="LineNr">266 </span> <span class="PreProc">var</span> color/eax: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L267" class="LineNr">267 </span> <span class="Delimiter">{</span>
<span id="L268" class="LineNr">268 </span> compare color, <span class="Constant">0x100</span>
<span id="L269" class="LineNr">269 </span> <span class="PreProc">break-if->=</span>
<span id="L270" class="LineNr">270 </span> $nearest-color-euclidean-hsl:body: <span class="Delimiter">{</span>
<span id="L271" class="LineNr">271 </span> a, b, c <span class="Special"><-</span> <a href='316colors.subx.html#L7'>color-rgb</a> color
<span id="L272" class="LineNr">272 </span> a, b, c <span class="Special"><-</span> <a href='505colors.mu.html#L51'>hsl</a> a, b, c
<span id="L273" class="LineNr">273 </span> <span class="Delimiter">{</span>
<span id="L274" class="LineNr">274 </span> <span class="PreProc">var</span> curr-distance/eax: int <span class="Special"><-</span> <a href='505colors.mu.html#L316'>euclidean-hsl-squared</a> a, b, c, h, s, l
<span id="L275" class="LineNr">275 </span> compare curr-distance, max-distance
<span id="L276" class="LineNr">276 </span> <span class="PreProc">break-if->=</span> $nearest-color-euclidean-hsl:body
<span id="L277" class="LineNr">277 </span> max-distance <span class="Special"><-</span> copy curr-distance
<span id="L278" class="LineNr">278 </span> <span class="Delimiter">}</span>
<span id="L279" class="LineNr">279 </span> result <span class="Special"><-</span> copy color
<span id="L280" class="LineNr">280 </span> <span class="Delimiter">}</span>
<span id="L281" class="LineNr">281 </span> color <span class="Special"><-</span> increment
<span id="L282" class="LineNr">282 </span> <span class="PreProc">loop</span>
<span id="L283" class="LineNr">283 </span> <span class="Delimiter">}</span>
<span id="L284" class="LineNr">284 </span> <span class="PreProc">return</span> result
<span id="L285" class="LineNr">285 </span><span class="Delimiter">}</span>
<span id="L286" class="LineNr">286 </span>
<span id="L287" class="LineNr">287 </span><span class="PreProc">fn</span> <span class="muTest"><a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a></span> <span class="Delimiter">{</span>
<span id="L288" class="LineNr">288 </span> <span class="muComment"># red from lightest to darkest</span>
<span id="L289" class="LineNr">289 </span> <span class="PreProc">var</span> red/eax: int <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0xff</span>, <span class="Constant">0xff</span>
<span id="L290" class="LineNr">290 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">0x58</span>/<span class="Constant">88</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/full-red1"</span>
<span id="L291" class="LineNr">291 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0xff</span>, <span class="Constant">0xc0</span>
<span id="L292" class="LineNr">292 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">0x40</span>/<span class="Constant">64</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/full-red2"</span>
<span id="L293" class="LineNr">293 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0xff</span>, <span class="Constant">0x80</span>
<span id="L294" class="LineNr">294 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">0x28</span>/<span class="Constant">40</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/full-red3"</span>
<span id="L295" class="LineNr">295 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0xff</span>, <span class="Constant">0x40</span>
<span id="L296" class="LineNr">296 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">0x28</span>/<span class="Constant">40</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/full-red4"</span>
<span id="L297" class="LineNr">297 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0xff</span>, <span class="Constant">0</span>
<span id="L298" class="LineNr">298 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">0x28</span>/<span class="Constant">40</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/full-red5"</span>
<span id="L299" class="LineNr">299 </span> <span class="muComment"># try a number really close to red but on the other side of the cylinder</span>
<span id="L300" class="LineNr">300 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0xff</span>, <span class="Constant">0xff</span>, <span class="Constant">0xff</span>
<span id="L301" class="LineNr">301 </span><span class="CommentedCode">#? draw-int32-decimal-wrapping-right-then-down-from-cursor-over-full-screen 0/screen, red, 7/fg 0/bg</span>
<span id="L302" class="LineNr">302 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">0x57</span>/<span class="Constant">87</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/other-end-of-red"</span> <span class="muComment"># still looks red</span>
<span id="L303" class="LineNr">303 </span> <span class="muComment"># half-saturation red from lightest to darkest</span>
<span id="L304" class="LineNr">304 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0x80</span>, <span class="Constant">0xff</span>
<span id="L305" class="LineNr">305 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">0xf</span>/<span class="Constant">15</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/half-red1"</span> <span class="muComment"># ?? grey ??</span>
<span id="L306" class="LineNr">306 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0x80</span>, <span class="Constant">0xc0</span>
<span id="L307" class="LineNr">307 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">4</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/half-red2"</span>
<span id="L308" class="LineNr">308 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0x80</span>, <span class="Constant">0x80</span>
<span id="L309" class="LineNr">309 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">4</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/half-red3"</span>
<span id="L310" class="LineNr">310 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0x80</span>, <span class="Constant">0x40</span>
<span id="L311" class="LineNr">311 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">4</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/half-red4"</span>
<span id="L312" class="LineNr">312 </span> red <span class="Special"><-</span> <a href='505colors.mu.html#L260'>nearest-color-euclidean-hsl</a> <span class="Constant">0</span>, <span class="Constant">0x80</span>, <span class="Constant">0</span>
<span id="L313" class="LineNr">313 </span> <a href='502test.mu.html#L2'>check-ints-equal</a> red, <span class="Constant">0x70</span>/<span class="Constant">112</span>, <span class="Constant">"F - <a href='505colors.mu.html#L287'>test-nearest-color-euclidean-hsl</a>/half-red5"</span>
<span id="L314" class="LineNr">314 </span><span class="Delimiter">}</span>
<span id="L315" class="LineNr">315 </span>
<span id="L316" class="LineNr">316 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='505colors.mu.html#L316'>euclidean-hsl-squared</a></span> h1: int, s1: int, l1: int, h2: int, s2: int, l2: int<span class="PreProc"> -> </span>_/eax: int <span class="Delimiter">{</span>
<span id="L317" class="LineNr">317 </span> <span class="PreProc">var</span> result/<span class="muRegEdi">edi</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span>
<span id="L318" class="LineNr">318 </span> <span class="muComment"># hue</span>
<span id="L319" class="LineNr">319 </span> <span class="PreProc">var</span> tmp/eax: int <span class="Special"><-</span> copy h1
<span id="L320" class="LineNr">320 </span> tmp <span class="Special"><-</span> subtract h2
<span id="L321" class="LineNr">321 </span> tmp <span class="Special"><-</span> multiply tmp
<span id="L322" class="LineNr">322 </span> <span class="muComment"># TODO: should we do something to reflect that hue is a cylindrical space?</span>
<span id="L323" class="LineNr">323 </span> <span class="muComment"># I can't come up with a failing test.</span>
<span id="L324" class="LineNr">324 </span> result <span class="Special"><-</span> add tmp
<span id="L325" class="LineNr">325 </span> <span class="muComment"># saturation</span>
<span id="L326" class="LineNr">326 </span> tmp <span class="Special"><-</span> copy s1
<span id="L327" class="LineNr">327 </span> tmp <span class="Special"><-</span> subtract s2
<span id="L328" class="LineNr">328 </span> tmp <span class="Special"><-</span> multiply tmp
<span id="L329" class="LineNr">329 </span> result <span class="Special"><-</span> add tmp
<span id="L330" class="LineNr">330 </span> <span class="muComment"># luminance</span>
<span id="L331" class="LineNr">331 </span> tmp <span class="Special"><-</span> copy l1
<span id="L332" class="LineNr">332 </span> tmp <span class="Special"><-</span> subtract l2
<span id="L333" class="LineNr">333 </span> tmp <span class="Special"><-</span> multiply tmp
<span id="L334" class="LineNr">334 </span> result <span class="Special"><-</span> add tmp
<span id="L335" class="LineNr">335 </span> <span class="PreProc">return</span> result
<span id="L336" class="LineNr">336 </span><span class="Delimiter">}</span>
<span id="L337" class="LineNr">337 </span>
<span id="L338" class="LineNr">338 </span><span class="muComment">###</span>
<span id="L339" class="LineNr">339 </span>
<span id="L340" class="LineNr">340 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='505colors.mu.html#L340'>maximum</a></span> a: int, b: int<span class="PreProc"> -> </span>_/eax: int <span class="Delimiter">{</span>
<span id="L341" class="LineNr">341 </span> <span class="PreProc">var</span> a2/eax: int <span class="Special"><-</span> copy a
<span id="L342" class="LineNr">342 </span> compare a2, b
<span id="L343" class="LineNr">343 </span> <span class="Delimiter">{</span>
<span id="L344" class="LineNr">344 </span> <span class="PreProc">break-if-<</span>
<span id="L345" class="LineNr">345 </span> <span class="PreProc">return</span> a
<span id="L346" class="LineNr">346 </span> <span class="Delimiter">}</span>
<span id="L347" class="LineNr">347 </span> <span class="PreProc">return</span> b
<span id="L348" class="LineNr">348 </span><span class="Delimiter">}</span>
<span id="L349" class="LineNr">349 </span>
<span id="L350" class="LineNr">350 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='505colors.mu.html#L350'>minimum</a></span> a: int, b: int<span class="PreProc"> -> </span>_/eax: int <span class="Delimiter">{</span>
<span id="L351" class="LineNr">351 </span> <span class="PreProc">var</span> a2/eax: int <span class="Special"><-</span> copy a
<span id="L352" class="LineNr">352 </span> compare a2, b
<span id="L353" class="LineNr">353 </span> <span class="Delimiter">{</span>
<span id="L354" class="LineNr">354 </span> <span class="PreProc">break-if-></span>
<span id="L355" class="LineNr">355 </span> <span class="PreProc">return</span> a
<span id="L356" class="LineNr">356 </span> <span class="Delimiter">}</span>
<span id="L357" class="LineNr">357 </span> <span class="PreProc">return</span> b
<span id="L358" class="LineNr">358 </span><span class="Delimiter">}</span>
</pre>
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