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# Some quick-n-dirty ways to create floats.

fn fill-in-rational _out: (addr float), nr: int, dr: int {
  var out/edi: (addr float) <- copy _out
  var result/xmm0: float <- convert nr
  var divisor/xmm1: float <- convert dr
  result <- divide divisor
  copy-to *out, result
}

fn fill-in-sqrt _out: (addr float), n: int {
  var out/edi: (addr float) <- copy _out
  var result/xmm0: float <- convert n
  result <- square-root result
  copy-to *out, result
}

fn rational nr: int, dr: int -> _/xmm0: float {
  var result/xmm0: float <- convert nr
  var divisor/xmm1: float <- convert dr
  result <- divide divisor
  return result
}
ntax" content="none"> <meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> <meta name="colorscheme" content="minimal-light"> <style type="text/css"> <!-- pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } a { color:inherit; } * { font-size:12pt; font-size: 1em; } .CommentedCode { color: #8a8a8a; } .muComment { color: #005faf; } .LineNr { } .SpecialChar { color: #d70000; } .Constant { color: #008787; } .muFunction { color: #af5f00; text-decoration: underline; } .Delimiter { color: #c000c0; } .PreProc { color: #c000c0; } --> </style> <script type='text/javascript'> <!-- /* function to open any folds containing a jumped-to line before jumping to it */ function JumpToLine() { var lineNum; lineNum = window.location.hash; lineNum = lineNum.substr(1); /* strip off '#' */ if (lineNum.indexOf('L') == -1) { lineNum = 'L'+lineNum; } var lineElem = document.getElementById(lineNum); /* Always jump to new location even if the line was hidden inside a fold, or * we corrected the raw number to a line ID. */ if (lineElem) { lineElem.scrollIntoView(true); } return true; } if ('onhashchange' in window) { window.onhashchange = JumpToLine; } --> </script> </head> <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/master/apps/tile/main.mu'>https://github.com/akkartik/mu/blob/master/apps/tile/main.mu</a> <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L1'>main</a></span> args-on-stack: (addr array addr array byte)<span class="PreProc"> -&gt; </span>_/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span> <span id="L2" class="LineNr"> 2 </span> <span class="PreProc">var</span> args/<span class="Constant">eax</span>: (addr array addr array byte) <span class="SpecialChar">&lt;-</span> copy args-on-stack <span id="L3" class="LineNr"> 3 </span> <span class="PreProc">var</span> len/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> length args <span id="L4" class="LineNr"> 4 </span> compare len, <span class="Constant">2</span> <span id="L5" class="LineNr"> 5 </span> <span class="Delimiter">{</span> <span id="L6" class="LineNr"> 6 </span> <span class="PreProc">break-if-!=</span> <span id="L7" class="LineNr"> 7 </span> <span class="muComment"># if single arg is 'test', run tests</span> <span id="L8" class="LineNr"> 8 </span> <span class="PreProc">var</span> tmp/<span class="Constant">ecx</span>: (addr addr array byte) <span class="SpecialChar">&lt;-</span> index args, <span class="Constant">1</span> <span id="L9" class="LineNr"> 9 </span> <span class="PreProc">var</span> tmp2/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../105string-equal.subx.html#L15'>string-equal?</a> *tmp, <span class="Constant">&quot;test&quot;</span> <span id="L10" class="LineNr"> 10 </span> compare tmp2, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L11" class="LineNr"> 11 </span> <span class="Delimiter">{</span> <span id="L12" class="LineNr"> 12 </span> <span class="PreProc">break-if-=</span> <span id="L13" class="LineNr"> 13 </span> run-tests <span id="L14" class="LineNr"> 14 </span> <span class="PreProc">return</span> <span class="Constant">0</span> <span class="muComment"># TODO: get at Num-test-failures somehow</span> <span id="L15" class="LineNr"> 15 </span> <span class="Delimiter">}</span> <span id="L16" class="LineNr"> 16 </span> <span class="muComment"># if single arg is 'screen', run in full-screen mode</span> <span id="L17" class="LineNr"> 17 </span> tmp2 <span class="SpecialChar">&lt;-</span> <a href='../../105string-equal.subx.html#L15'>string-equal?</a> *tmp, <span class="Constant">&quot;screen&quot;</span> <span id="L18" class="LineNr"> 18 </span> compare tmp2, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L19" class="LineNr"> 19 </span> <span class="Delimiter">{</span> <span id="L20" class="LineNr"> 20 </span> <span class="PreProc">break-if-=</span> <span id="L21" class="LineNr"> 21 </span> <a href='main.mu.html#L49'>interactive</a> <span id="L22" class="LineNr"> 22 </span> <span class="PreProc">return</span> <span class="Constant">0</span> <span id="L23" class="LineNr"> 23 </span> <span class="Delimiter">}</span> <span id="L24" class="LineNr"> 24 </span> <span class="muComment"># if single arg is 'type', run in typewriter mode</span> <span id="L25" class="LineNr"> 25 </span> tmp2 <span class="SpecialChar">&lt;-</span> <a href='../../105string-equal.subx.html#L15'>string-equal?</a> *tmp, <span class="Constant">&quot;type&quot;</span> <span id="L26" class="LineNr"> 26 </span> compare tmp2, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L27" class="LineNr"> 27 </span> <span class="Delimiter">{</span> <span id="L28" class="LineNr"> 28 </span> <span class="PreProc">break-if-=</span> <span id="L29" class="LineNr"> 29 </span> <a href='main.mu.html#L99'>repl</a> <span id="L30" class="LineNr"> 30 </span> <span class="PreProc">return</span> <span class="Constant">0</span> <span id="L31" class="LineNr"> 31 </span> <span class="Delimiter">}</span> <span id="L32" class="LineNr"> 32 </span> <span class="muComment"># if single arg is 'test' ...</span> <span id="L33" class="LineNr"> 33 </span> tmp2 <span class="SpecialChar">&lt;-</span> <a href='../../105string-equal.subx.html#L15'>string-equal?</a> *tmp, <span class="Constant">&quot;test2&quot;</span> <span id="L34" class="LineNr"> 34 </span> compare tmp2, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L35" class="LineNr"> 35 </span> <span class="Delimiter">{</span> <span id="L36" class="LineNr"> 36 </span> <span class="PreProc">break-if-=</span> <span id="L37" class="LineNr"> 37 </span> <a href='main.mu.html#L68'>test</a> <span id="L38" class="LineNr"> 38 </span> <span class="PreProc">return</span> <span class="Constant">0</span> <span id="L39" class="LineNr"> 39 </span> <span class="Delimiter">}</span> <span id="L40" class="LineNr"> 40 </span> <span class="Delimiter">}</span> <span id="L41" class="LineNr"> 41 </span> <span class="muComment"># otherwise error message</span> <span id="L42" class="LineNr"> 42 </span> <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;usage:\n&quot;</span> <span id="L43" class="LineNr"> 43 </span> <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot; to run tests: tile test\n&quot;</span> <span id="L44" class="LineNr"> 44 </span> <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot; full-screen mode: tile screen\n&quot;</span> <span id="L45" class="LineNr"> 45 </span> <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot; regular REPL: tile type\n&quot;</span> <span id="L46" class="LineNr"> 46 </span> <span class="PreProc">return</span> <span class="Constant">1</span> <span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span> <span id="L48" class="LineNr"> 48 </span> <span id="L49" class="LineNr"> 49 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L49'>interactive</a></span> <span class="Delimiter">{</span> <span id="L50" class="LineNr"> 50 </span> <a href='../../304screen.subx.html#L6'>enable-screen-grid-mode</a> <span id="L51" class="LineNr"> 51 </span> <a href='../../305keyboard.subx.html#L6'>enable-keyboard-immediate-mode</a> <span id="L52" class="LineNr"> 52 </span> <span class="PreProc">var</span> env-storage: <a href='environment.mu.html#L1'>environment</a> <span id="L53" class="LineNr"> 53 </span> <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> address env-storage <span id="L54" class="LineNr"> 54 </span> <a href='environment.mu.html#L11'>initialize-environment</a> env <span id="L55" class="LineNr"> 55 </span> <a href='environment.mu.html#L41'>draw-screen</a> env <span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">{</span> <span id="L57" class="LineNr"> 57 </span> <span class="PreProc">var</span> key/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../305keyboard.subx.html#L132'>read-key-from-real-keyboard</a> <span id="L58" class="LineNr"> 58 </span> compare key, <span class="Constant">0x11</span> <span class="muComment"># 'ctrl-q'</span> <span id="L59" class="LineNr"> 59 </span> <span class="PreProc">break-if-=</span> <span id="L60" class="LineNr"> 60 </span> <a href='environment.mu.html#L66'>process</a> env, key <span id="L61" class="LineNr"> 61 </span> <a href='environment.mu.html#L977'>render</a> env <span id="L62" class="LineNr"> 62 </span> <span class="PreProc">loop</span> <span id="L63" class="LineNr"> 63 </span> <span class="Delimiter">}</span> <span id="L64" class="LineNr"> 64 </span> <a href='../../305keyboard.subx.html#L72'>enable-keyboard-type-mode</a> <span id="L65" class="LineNr"> 65 </span> <a href='../../304screen.subx.html#L24'>enable-screen-type-mode</a> <span id="L66" class="LineNr"> 66 </span><span class="Delimiter">}</span> <span id="L67" class="LineNr"> 67 </span> <span id="L68" class="LineNr"> 68 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L68'>test</a></span> <span class="Delimiter">{</span> <span id="L69" class="LineNr"> 69 </span> <span class="PreProc">var</span> env-storage: <a href='environment.mu.html#L1'>environment</a> <span id="L70" class="LineNr"> 70 </span> <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> address env-storage <span id="L71" class="LineNr"> 71 </span> <a href='environment.mu.html#L53'>initialize-environment-with-fake-screen</a> env, <span class="Constant">0x20</span>, <span class="Constant">0xa0</span> <span id="L72" class="LineNr"> 72 </span> <a href='main.mu.html#L85'>process-all</a> env, <span class="Constant">&quot;3 3 fake-screen =s&quot;</span> <span id="L73" class="LineNr"> 73 </span> <a href='environment.mu.html#L66'>process</a> env, <span class="Constant">0xc</span> <span class="muComment"># ctrl-l</span> <span id="L74" class="LineNr"> 74 </span> <a href='main.mu.html#L85'>process-all</a> env, <span class="Constant">&quot;s 1 down 1 right&quot;</span> <span id="L75" class="LineNr"> 75 </span> <a href='environment.mu.html#L66'>process</a> env, <span class="Constant">4</span> <span class="muComment"># ctrl-d: start defining function</span> <span id="L76" class="LineNr"> 76 </span> <a href='main.mu.html#L85'>process-all</a> env, <span class="Constant">&quot;foo&quot;</span> <span id="L77" class="LineNr"> 77 </span> <a href='environment.mu.html#L66'>process</a> env, <span class="Constant">0xa</span> <span class="muComment"># newline: define function</span> <span id="L78" class="LineNr"> 78 </span> <a href='environment.mu.html#L66'>process</a> env, <span class="Constant">0x435b1b</span> <span class="muComment"># right-arrow</span> <span id="L79" class="LineNr"> 79 </span><span class="CommentedCode">#? process env, 5 # ctrl-e: end of line</span> <span id="L80" class="LineNr"> 80 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot;==\n&quot;</span> <span id="L81" class="LineNr"> 81 </span> <a href='environment.mu.html#L66'>process</a> env, <span class="Constant">0xa</span> <span class="muComment"># newline: expand</span> <span id="L82" class="LineNr"> 82 </span> <a href='environment.mu.html#L977'>render</a> env <span id="L83" class="LineNr"> 83 </span><span class="Delimiter">}</span> <span id="L84" class="LineNr"> 84 </span> <span id="L85" class="LineNr"> 85 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L85'>process-all</a></span> env: (addr <a href='environment.mu.html#L1'>environment</a>), cmds: (addr array byte) <span class="Delimiter">{</span> <span id="L86" class="LineNr"> 86 </span> <span class="PreProc">var</span> cmds-stream: (stream byte <span class="Constant">0x100</span>) <span id="L87" class="LineNr"> 87 </span> <span class="PreProc">var</span> cmds-stream-a/<span class="Constant">esi</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address cmds-stream <span id="L88" class="LineNr"> 88 </span> <a href='../../108write.subx.html#L24'>write</a> cmds-stream-a, cmds <span id="L89" class="LineNr"> 89 </span> <span class="Delimiter">{</span> <span id="L90" class="LineNr"> 90 </span> <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> cmds-stream-a <span id="L91" class="LineNr"> 91 </span> compare done?, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L92" class="LineNr"> 92 </span> <span class="PreProc">break-if-!=</span> <span id="L93" class="LineNr"> 93 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../403unicode.mu.html#L158'>read-grapheme</a> cmds-stream-a <span id="L94" class="LineNr"> 94 </span> <a href='environment.mu.html#L66'>process</a> env, g <span id="L95" class="LineNr"> 95 </span> <span class="PreProc">loop</span> <span id="L96" class="LineNr"> 96 </span> <span class="Delimiter">}</span> <span id="L97" class="LineNr"> 97 </span><span class="Delimiter">}</span> <span id="L98" class="LineNr"> 98 </span> <span id="L99" class="LineNr"> 99 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='main.mu.html#L99'>repl</a></span> <span class="Delimiter">{</span> <span id="L100" class="LineNr">100 </span> <span class="Delimiter">{</span> <span id="L101" class="LineNr">101 </span> <span class="muComment"># prompt</span> <span id="L102" class="LineNr">102 </span> <a href='../../304screen.subx.html#L122'>print-string-to-real-screen</a> <span class="Constant">&quot;&gt; &quot;</span> <span id="L103" class="LineNr">103 </span> <span class="muComment"># read</span> <span id="L104" class="LineNr">104 </span> <span class="PreProc">var</span> line-storage: (stream byte <span class="Constant">0x100</span>) <span id="L105" class="LineNr">105 </span> <span class="PreProc">var</span> <a href='data.mu.html#L22'>line</a>/<span class="Constant">ecx</span>: (addr stream byte) <span class="SpecialChar">&lt;-</span> address line-storage <span id="L106" class="LineNr">106 </span> <a href='../../106stream.subx.html#L17'>clear-stream</a> <a href='data.mu.html#L22'>line</a> <span id="L107" class="LineNr">107 </span> <a href='../../305keyboard.subx.html#L158'>read-line-from-real-keyboard</a> <a href='data.mu.html#L22'>line</a> <span id="L108" class="LineNr">108 </span> <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> <a href='data.mu.html#L22'>line</a> <span id="L109" class="LineNr">109 </span> compare done?, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L110" class="LineNr">110 </span> <span class="PreProc">break-if-!=</span> <span id="L111" class="LineNr">111 </span> <span class="muComment"># parse</span> <span id="L112" class="LineNr">112 </span> <span class="PreProc">var</span> env-storage: <a href='environment.mu.html#L1'>environment</a> <span id="L113" class="LineNr">113 </span> <span class="PreProc">var</span> env/<span class="Constant">esi</span>: (addr <a href='environment.mu.html#L1'>environment</a>) <span class="SpecialChar">&lt;-</span> address env-storage <span id="L114" class="LineNr">114 </span> <a href='environment.mu.html#L11'>initialize-environment</a> env <span id="L115" class="LineNr">115 </span> <span class="Delimiter">{</span> <span id="L116" class="LineNr">116 </span> <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='../../309stream.subx.html#L6'>stream-empty?</a> <a href='data.mu.html#L22'>line</a> <span id="L117" class="LineNr">117 </span> compare done?, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L118" class="LineNr">118 </span> <span class="PreProc">break-if-!=</span> <span id="L119" class="LineNr">119 </span> <span class="PreProc">var</span> g/<span class="Constant">eax</span>: grapheme <span class="SpecialChar">&lt;-</span> <a href='../../403unicode.mu.html#L158'>read-grapheme</a> <a href='data.mu.html#L22'>line</a> <span id="L120" class="LineNr">120 </span> <a href='environment.mu.html#L66'>process</a> env, g <span id="L121" class="LineNr">121 </span> <span class="PreProc">loop</span> <span id="L122" class="LineNr">122 </span> <span class="Delimiter">}</span> <span id="L123" class="LineNr">123 </span> <span class="muComment"># eval</span> <span id="L124" class="LineNr">124 </span> <span class="PreProc">var</span> stack-storage: <a href='value-stack.mu.html#L3'>value-stack</a> <span id="L125" class="LineNr">125 </span> <span class="PreProc">var</span> stack/<span class="Constant">edi</span>: (addr <a href='value-stack.mu.html#L3'>value-stack</a>) <span class="SpecialChar">&lt;-</span> address stack-storage <span id="L126" class="LineNr">126 </span> <a href='value-stack.mu.html#L8'>initialize-value-stack</a> stack, <span class="Constant">0x10</span> <span id="L127" class="LineNr">127 </span> <a href='environment.mu.html#L964'>evaluate-environment</a> env, stack <span id="L128" class="LineNr">128 </span> <span class="muComment"># print</span> <span id="L129" class="LineNr">129 </span> <span class="PreProc">var</span> empty?/<span class="Constant">eax</span>: boolean <span class="SpecialChar">&lt;-</span> <a href='value-stack.mu.html#L108'>value-stack-empty?</a> stack <span id="L130" class="LineNr">130 </span> <span class="Delimiter">{</span> <span id="L131" class="LineNr">131 </span> compare empty?, <span class="Constant">0</span> <span class="muComment"># false</span> <span id="L132" class="LineNr">132 </span> <span class="PreProc">break-if-!=</span> <span id="L133" class="LineNr">133 </span> <span class="PreProc">var</span> <a href='data.mu.html#L70'>result</a>/<span class="Constant">xmm0</span>: float <span class="SpecialChar">&lt;-</span> <a href='value-stack.mu.html#L88'>pop-number-from-value-stack</a> stack <span id="L134" class="LineNr">134 </span> <a href='../../412print-float-decimal.mu.html#L159'>print-float-decimal-approximate</a> <span class="Constant">0</span>, <a href='data.mu.html#L70'>result</a>, <span class="Constant">3</span> <span id="L135" class="LineNr">135 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot;\n&quot;</span> <span id="L136" class="LineNr">136 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot;width: &quot;</span> <span id="L137" class="LineNr">137 </span> <span class="PreProc">var</span> width/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> <a href='../../412print-float-decimal.mu.html#L511'>float-size</a> <a href='data.mu.html#L70'>result</a>, <span class="Constant">3</span> <span id="L138" class="LineNr">138 </span> <a href='../../405screen.mu.html#L480'>print-int32-decimal</a> <span class="Constant">0</span>, width <span id="L139" class="LineNr">139 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">&quot;\n&quot;</span> <span id="L140" class="LineNr">140 </span> <span class="Delimiter">}</span> <span id="L141" class="LineNr">141 </span> <span class="muComment">#</span> <span id="L142" class="LineNr">142 </span> <span class="PreProc">loop</span> <span id="L143" class="LineNr">143 </span> <span class="Delimiter">}</span> <span id="L144" class="LineNr">144 </span><span class="Delimiter">}</span> </pre> </body> </html> <!-- vim: set foldmethod=manual : -->