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<!DOCTYPE html>
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< html >
< head >
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< meta charset = "UTF-8" >
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< title > Mu - apps/mandelbrot-silhouette.mu< / title >
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< meta name = "Generator" content = "Vim/8.2" >
< meta name = "plugin-version" content = "vim8.1_v2" >
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< meta name = "syntax" content = "none" >
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< meta name = "settings" content = "number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=,use_input_for_pc=fallback" >
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< meta name = "colorscheme" content = "minimal-light" >
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< style >
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pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #ffffd7; }
body { font-size:12pt; font-family: monospace; color: #000000; background-color: #ffffd7; }
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a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
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.PreProc { color: #c000c0; }
.muRegEdx { color: #af5f00; }
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.Special { color: #ff6060; }
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.LineNr { }
.muRegEsi { color: #005faf; }
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.Constant { color: #008787; }
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.muRegEdi { color: #00af00; }
.muRegEcx { color: #870000; }
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.Delimiter { color: #c000c0; }
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.muFunction { color: #af5f00; text-decoration: underline; }
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.muComment { color: #005faf; }
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-->
< / style >
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< script >
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< / script >
< / head >
< body onload = 'JumpToLine();' >
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< a href = 'https://github.com/akkartik/mu/blob/main/apps/mandelbrot-silhouette.mu' > https://github.com/akkartik/mu/blob/main/apps/mandelbrot-silhouette.mu< / a >
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< pre id = 'vimCodeElement' >
< span id = "L1" class = "LineNr" > 1 < / span > < span class = "muComment" > # Mandelbrot set< / span >
< span id = "L2" class = "LineNr" > 2 < / span > < span class = "muComment" > #< / span >
< span id = "L3" class = "LineNr" > 3 < / span > < span class = "muComment" > # Install:< / span >
< span id = "L4" class = "LineNr" > 4 < / span > < span class = "muComment" > # $ git clone < a href = "https://github.com/akkartik/mu" > https://github.com/akkartik/mu< / a > < / span >
< span id = "L5" class = "LineNr" > 5 < / span > < span class = "muComment" > # $ cd mu< / span >
< span id = "L6" class = "LineNr" > 6 < / span > < span class = "muComment" > # Build on Linux:< / span >
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< span id = "L7" class = "LineNr" > 7 < / span > < span class = "muComment" > # $ ./translate apps/mandelbrot.mu< / span >
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< span id = "L8" class = "LineNr" > 8 < / span > < span class = "muComment" > # Build on other platforms (slow):< / span >
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< span id = "L9" class = "LineNr" > 9 < / span > < span class = "muComment" > # $ ./translate_emulated apps/mandelbrot.mu< / span >
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< span id = "L10" class = "LineNr" > 10 < / span > < span class = "muComment" > # Run:< / span >
< span id = "L11" class = "LineNr" > 11 < / span > < span class = "muComment" > # $ qemu-system-i386 code.img< / span >
< span id = "L12" class = "LineNr" > 12 < / span >
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< span id = "L13" class = "LineNr" > 13 < / span > < span class = "PreProc" > fn< / span > < span class = "muFunction" > < a href = 'mandelbrot-silhouette.mu.html#L13' > main< / a > < / span > < a href = '../500fake-screen.mu.html#L16' > screen< / a > : (addr < a href = '../500fake-screen.mu.html#L16' > screen< / a > ), keyboard: (addr keyboard), data-disk: (addr disk) < span class = "Delimiter" > {< / span >
< span id = "L14" class = "LineNr" > 14 < / span > < a href = 'mandelbrot-silhouette.mu.html#L17' > mandelbrot< / a > < a href = '../500fake-screen.mu.html#L16' > screen< / a >
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< span id = "L15" class = "LineNr" > 15 < / span > < span class = "Delimiter" > }< / span >
< span id = "L16" class = "LineNr" > 16 < / span >
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< span id = "L17" class = "LineNr" > 17 < / span > < span class = "PreProc" > fn< / span > < span class = "muFunction" > < a href = 'mandelbrot-silhouette.mu.html#L17' > mandelbrot< / a > < / span > < a href = '../500fake-screen.mu.html#L16' > screen< / a > : (addr < a href = '../500fake-screen.mu.html#L16' > screen< / a > ) < span class = "Delimiter" > {< / span >
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< span id = "L18" class = "LineNr" > 18 < / span > < span class = "PreProc" > var< / span > a/eax: int < span class = "Special" > < -< / span > copy < span class = "Constant" > 0< / span >
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< span id = "L19" class = "LineNr" > 19 < / span > < span class = "PreProc" > var< / span > b/< span class = "muRegEcx" > ecx< / span > : int < span class = "Special" > < -< / span > copy < span class = "Constant" > 0< / span >
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< span id = "L20" class = "LineNr" > 20 < / span > a, b < span class = "Special" > < -< / span > < a href = '../500fake-screen.mu.html#L75' > screen-size< / a > < a href = '../500fake-screen.mu.html#L16' > screen< / a >
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< span id = "L21" class = "LineNr" > 21 < / span > < span class = "PreProc" > var< / span > width/< span class = "muRegEsi" > esi< / span > : int < span class = "Special" > < -< / span > copy a
< span id = "L22" class = "LineNr" > 22 < / span > width < span class = "Special" > < -< / span > shift-left < span class = "Constant" > 3< / span > /log2-font-width
< span id = "L23" class = "LineNr" > 23 < / span > < span class = "PreProc" > var< / span > height/< span class = "muRegEdi" > edi< / span > : int < span class = "Special" > < -< / span > copy b
< span id = "L24" class = "LineNr" > 24 < / span > height < span class = "Special" > < -< / span > shift-left < span class = "Constant" > 4< / span > /log2-font-height
< span id = "L25" class = "LineNr" > 25 < / span > < span class = "PreProc" > var< / span > y/< span class = "muRegEcx" > ecx< / span > : int < span class = "Special" > < -< / span > copy < span class = "Constant" > 0< / span >
< span id = "L26" class = "LineNr" > 26 < / span > < span class = "Delimiter" > {< / span >
< span id = "L27" class = "LineNr" > 27 < / span > compare y, height
< span id = "L28" class = "LineNr" > 28 < / span > < span class = "PreProc" > break-if-> =< / span >
< span id = "L29" class = "LineNr" > 29 < / span > < span class = "PreProc" > var< / span > imaginary/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > < a href = 'mandelbrot-silhouette.mu.html#L135' > viewport-to-imaginary< / a > y, width, height
< span id = "L30" class = "LineNr" > 30 < / span > < span class = "PreProc" > var< / span > x/< span class = "muRegEdx" > edx< / span > : int < span class = "Special" > < -< / span > copy < span class = "Constant" > 0< / span >
< span id = "L31" class = "LineNr" > 31 < / span > < span class = "Delimiter" > {< / span >
< span id = "L32" class = "LineNr" > 32 < / span > compare x, width
< span id = "L33" class = "LineNr" > 33 < / span > < span class = "PreProc" > break-if-> =< / span >
< span id = "L34" class = "LineNr" > 34 < / span > < span class = "PreProc" > var< / span > real/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > < a href = 'mandelbrot-silhouette.mu.html#L119' > viewport-to-real< / a > x, width
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< span id = "L35" class = "LineNr" > 35 < / span > < span class = "PreProc" > var< / span > iterations/eax: int < span class = "Special" > < -< / span > < a href = 'mandelbrot-silhouette.mu.html#L54' > mandelbrot-iterations-for-point< / a > real, imaginary, < span class = "Constant" > 0x400< / span > /max
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< span id = "L36" class = "LineNr" > 36 < / span > compare iterations, < span class = "Constant" > 0x400< / span > /max
< span id = "L37" class = "LineNr" > 37 < / span > < span class = "Delimiter" > {< / span >
< span id = "L38" class = "LineNr" > 38 < / span > < span class = "PreProc" > break-if-> =< / span >
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< span id = "L39" class = "LineNr" > 39 < / span > < a href = '../500fake-screen.mu.html#L580' > pixel< / a > < a href = '../500fake-screen.mu.html#L16' > screen< / a > , x, y, < span class = "Constant" > 0xf< / span > /white
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< span id = "L40" class = "LineNr" > 40 < / span > < span class = "Delimiter" > }< / span >
< span id = "L41" class = "LineNr" > 41 < / span > compare iterations, < span class = "Constant" > 0x400< / span > /max
< span id = "L42" class = "LineNr" > 42 < / span > < span class = "Delimiter" > {< / span >
< span id = "L43" class = "LineNr" > 43 < / span > < span class = "PreProc" > break-if-< < / span >
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< span id = "L44" class = "LineNr" > 44 < / span > < a href = '../500fake-screen.mu.html#L580' > pixel< / a > < a href = '../500fake-screen.mu.html#L16' > screen< / a > , x, y, < span class = "Constant" > 0< / span > /black
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< span id = "L45" class = "LineNr" > 45 < / span > < span class = "Delimiter" > }< / span >
< span id = "L46" class = "LineNr" > 46 < / span > x < span class = "Special" > < -< / span > increment
< span id = "L47" class = "LineNr" > 47 < / span > < span class = "PreProc" > loop< / span >
< span id = "L48" class = "LineNr" > 48 < / span > < span class = "Delimiter" > }< / span >
< span id = "L49" class = "LineNr" > 49 < / span > y < span class = "Special" > < -< / span > increment
< span id = "L50" class = "LineNr" > 50 < / span > < span class = "PreProc" > loop< / span >
< span id = "L51" class = "LineNr" > 51 < / span > < span class = "Delimiter" > }< / span >
< span id = "L52" class = "LineNr" > 52 < / span > < span class = "Delimiter" > }< / span >
< span id = "L53" class = "LineNr" > 53 < / span >
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< span id = "L54" class = "LineNr" > 54 < / span > < span class = "PreProc" > fn< / span > < span class = "muFunction" > < a href = 'mandelbrot-silhouette.mu.html#L54' > mandelbrot-iterations-for-point< / a > < / span > real: float, imaginary: float, max: int< span class = "PreProc" > -> < / span > _/eax: int < span class = "Delimiter" > {< / span >
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< span id = "L55" class = "LineNr" > 55 < / span > < span class = "PreProc" > var< / span > zero: float
< span id = "L56" class = "LineNr" > 56 < / span > < span class = "PreProc" > var< / span > x/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > copy zero
< span id = "L57" class = "LineNr" > 57 < / span > < span class = "PreProc" > var< / span > y/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > copy zero
< span id = "L58" class = "LineNr" > 58 < / span > < span class = "PreProc" > var< / span > iterations/< span class = "muRegEcx" > ecx< / span > : int < span class = "Special" > < -< / span > copy < span class = "Constant" > 0< / span >
< span id = "L59" class = "LineNr" > 59 < / span > < span class = "Delimiter" > {< / span >
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< span id = "L60" class = "LineNr" > 60 < / span > < span class = "PreProc" > var< / span > done?/eax: boolean < span class = "Special" > < -< / span > < a href = 'mandelbrot-silhouette.mu.html#L75' > mandelbrot-done?< / a > x, y
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< span id = "L61" class = "LineNr" > 61 < / span > compare done?, < span class = "Constant" > 0< / span > /false
< span id = "L62" class = "LineNr" > 62 < / span > < span class = "PreProc" > break-if-!=< / span >
< span id = "L63" class = "LineNr" > 63 < / span > compare iterations, max
< span id = "L64" class = "LineNr" > 64 < / span > < span class = "PreProc" > break-if-> =< / span >
< span id = "L65" class = "LineNr" > 65 < / span > < span class = "PreProc" > var< / span > newx/< span class = "Constant" > xmm2< / span > : float < span class = "Special" > < -< / span > < a href = 'mandelbrot-silhouette.mu.html#L93' > mandelbrot-x< / a > x, y, real
< span id = "L66" class = "LineNr" > 66 < / span > < span class = "PreProc" > var< / span > newy/< span class = "Constant" > xmm3< / span > : float < span class = "Special" > < -< / span > < a href = 'mandelbrot-silhouette.mu.html#L105' > mandelbrot-y< / a > x, y, imaginary
< span id = "L67" class = "LineNr" > 67 < / span > x < span class = "Special" > < -< / span > copy newx
< span id = "L68" class = "LineNr" > 68 < / span > y < span class = "Special" > < -< / span > copy newy
< span id = "L69" class = "LineNr" > 69 < / span > iterations < span class = "Special" > < -< / span > increment
< span id = "L70" class = "LineNr" > 70 < / span > < span class = "PreProc" > loop< / span >
< span id = "L71" class = "LineNr" > 71 < / span > < span class = "Delimiter" > }< / span >
< span id = "L72" class = "LineNr" > 72 < / span > < span class = "PreProc" > return< / span > iterations
< span id = "L73" class = "LineNr" > 73 < / span > < span class = "Delimiter" > }< / span >
< span id = "L74" class = "LineNr" > 74 < / span >
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< span id = "L75" class = "LineNr" > 75 < / span > < span class = "PreProc" > fn< / span > < span class = "muFunction" > < a href = 'mandelbrot-silhouette.mu.html#L75' > mandelbrot-done?< / a > < / span > x: float, y: float< span class = "PreProc" > -> < / span > _/eax: boolean < span class = "Delimiter" > {< / span >
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< span id = "L76" class = "LineNr" > 76 < / span > < span class = "muComment" > # x*x + y*y > 4< / span >
< span id = "L77" class = "LineNr" > 77 < / span > < span class = "PreProc" > var< / span > x2/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > copy x
< span id = "L78" class = "LineNr" > 78 < / span > x2 < span class = "Special" > < -< / span > multiply x
< span id = "L79" class = "LineNr" > 79 < / span > < span class = "PreProc" > var< / span > y2/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > copy y
< span id = "L80" class = "LineNr" > 80 < / span > y2 < span class = "Special" > < -< / span > multiply y
< span id = "L81" class = "LineNr" > 81 < / span > < span class = "PreProc" > var< / span > sum/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > copy x2
< span id = "L82" class = "LineNr" > 82 < / span > sum < span class = "Special" > < -< / span > add y2
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< span id = "L83" class = "LineNr" > 83 < / span > < span class = "PreProc" > var< / span > four/eax: int < span class = "Special" > < -< / span > copy < span class = "Constant" > 4< / span >
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< span id = "L84" class = "LineNr" > 84 < / span > < span class = "PreProc" > var< / span > four-f/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > convert four
< span id = "L85" class = "LineNr" > 85 < / span > compare sum, four-f
< span id = "L86" class = "LineNr" > 86 < / span > < span class = "Delimiter" > {< / span >
< span id = "L87" class = "LineNr" > 87 < / span > < span class = "PreProc" > break-if-float> < / span >
< span id = "L88" class = "LineNr" > 88 < / span > < span class = "PreProc" > return< / span > < span class = "Constant" > 0< / span > /false
< span id = "L89" class = "LineNr" > 89 < / span > < span class = "Delimiter" > }< / span >
< span id = "L90" class = "LineNr" > 90 < / span > < span class = "PreProc" > return< / span > < span class = "Constant" > 1< / span > /true
< span id = "L91" class = "LineNr" > 91 < / span > < span class = "Delimiter" > }< / span >
< span id = "L92" class = "LineNr" > 92 < / span >
< span id = "L93" class = "LineNr" > 93 < / span > < span class = "PreProc" > fn< / span > < span class = "muFunction" > < a href = 'mandelbrot-silhouette.mu.html#L93' > mandelbrot-x< / a > < / span > x: float, y: float, real: float< span class = "PreProc" > -> < / span > _/< span class = "Constant" > xmm2< / span > : float < span class = "Delimiter" > {< / span >
< span id = "L94" class = "LineNr" > 94 < / span > < span class = "muComment" > # x*x - y*y + real< / span >
< span id = "L95" class = "LineNr" > 95 < / span > < span class = "PreProc" > var< / span > x2/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > copy x
< span id = "L96" class = "LineNr" > 96 < / span > x2 < span class = "Special" > < -< / span > multiply x
< span id = "L97" class = "LineNr" > 97 < / span > < span class = "PreProc" > var< / span > y2/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > copy y
< span id = "L98" class = "LineNr" > 98 < / span > y2 < span class = "Special" > < -< / span > multiply y
< span id = "L99" class = "LineNr" > 99 < / span > < span class = "PreProc" > var< / span > result/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > copy x2
< span id = "L100" class = "LineNr" > 100 < / span > result < span class = "Special" > < -< / span > subtract y2
< span id = "L101" class = "LineNr" > 101 < / span > result < span class = "Special" > < -< / span > add real
< span id = "L102" class = "LineNr" > 102 < / span > < span class = "PreProc" > return< / span > result
< span id = "L103" class = "LineNr" > 103 < / span > < span class = "Delimiter" > }< / span >
< span id = "L104" class = "LineNr" > 104 < / span >
< span id = "L105" class = "LineNr" > 105 < / span > < span class = "PreProc" > fn< / span > < span class = "muFunction" > < a href = 'mandelbrot-silhouette.mu.html#L105' > mandelbrot-y< / a > < / span > x: float, y: float, imaginary: float< span class = "PreProc" > -> < / span > _/< span class = "Constant" > xmm3< / span > : float < span class = "Delimiter" > {< / span >
< span id = "L106" class = "LineNr" > 106 < / span > < span class = "muComment" > # 2*x*y + imaginary< / span >
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< span id = "L107" class = "LineNr" > 107 < / span > < span class = "PreProc" > var< / span > two/eax: int < span class = "Special" > < -< / span > copy < span class = "Constant" > 2< / span >
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< span id = "L108" class = "LineNr" > 108 < / span > < span class = "PreProc" > var< / span > result/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > convert two
< span id = "L109" class = "LineNr" > 109 < / span > result < span class = "Special" > < -< / span > multiply x
< span id = "L110" class = "LineNr" > 110 < / span > result < span class = "Special" > < -< / span > multiply y
< span id = "L111" class = "LineNr" > 111 < / span > result < span class = "Special" > < -< / span > add imaginary
< span id = "L112" class = "LineNr" > 112 < / span > < span class = "PreProc" > return< / span > result
< span id = "L113" class = "LineNr" > 113 < / span > < span class = "Delimiter" > }< / span >
< span id = "L114" class = "LineNr" > 114 < / span >
< span id = "L115" class = "LineNr" > 115 < / span > < span class = "muComment" > # Scale (x, y) pixel coordinates to a complex plane where the viewport width< / span >
< span id = "L116" class = "LineNr" > 116 < / span > < span class = "muComment" > # ranges from -2 to +2. Viewport height just follows the viewport's aspect< / span >
< span id = "L117" class = "LineNr" > 117 < / span > < span class = "muComment" > # ratio.< / span >
< span id = "L118" class = "LineNr" > 118 < / span >
< span id = "L119" class = "LineNr" > 119 < / span > < span class = "PreProc" > fn< / span > < span class = "muFunction" > < a href = 'mandelbrot-silhouette.mu.html#L119' > viewport-to-real< / a > < / span > x: int, width: int< span class = "PreProc" > -> < / span > _/< span class = "Constant" > xmm0< / span > : float < span class = "Delimiter" > {< / span >
< span id = "L120" class = "LineNr" > 120 < / span > < span class = "muComment" > # (x - width/2)*4/width< / span >
< span id = "L121" class = "LineNr" > 121 < / span > < span class = "PreProc" > var< / span > result/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > convert x
< span id = "L122" class = "LineNr" > 122 < / span > < span class = "PreProc" > var< / span > width-f/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > convert width
2021-06-27 03:55:36 +00:00
< span id = "L123" class = "LineNr" > 123 < / span > < span class = "PreProc" > var< / span > two/eax: int < span class = "Special" > < -< / span > copy < span class = "Constant" > 2< / span >
2021-06-16 04:50:13 +00:00
< span id = "L124" class = "LineNr" > 124 < / span > < span class = "PreProc" > var< / span > two-f/< span class = "Constant" > xmm2< / span > : float < span class = "Special" > < -< / span > convert two
< span id = "L125" class = "LineNr" > 125 < / span > < span class = "PreProc" > var< / span > half-width-f/< span class = "Constant" > xmm2< / span > : float < span class = "Special" > < -< / span > reciprocal two-f
< span id = "L126" class = "LineNr" > 126 < / span > half-width-f < span class = "Special" > < -< / span > multiply width-f
< span id = "L127" class = "LineNr" > 127 < / span > result < span class = "Special" > < -< / span > subtract half-width-f
2021-06-27 03:55:36 +00:00
< span id = "L128" class = "LineNr" > 128 < / span > < span class = "PreProc" > var< / span > four/eax: int < span class = "Special" > < -< / span > copy < span class = "Constant" > 4< / span >
2021-06-16 04:50:13 +00:00
< span id = "L129" class = "LineNr" > 129 < / span > < span class = "PreProc" > var< / span > four-f/< span class = "Constant" > xmm2< / span > : float < span class = "Special" > < -< / span > convert four
< span id = "L130" class = "LineNr" > 130 < / span > result < span class = "Special" > < -< / span > multiply four-f
< span id = "L131" class = "LineNr" > 131 < / span > result < span class = "Special" > < -< / span > divide width-f
< span id = "L132" class = "LineNr" > 132 < / span > < span class = "PreProc" > return< / span > result
< span id = "L133" class = "LineNr" > 133 < / span > < span class = "Delimiter" > }< / span >
< span id = "L134" class = "LineNr" > 134 < / span >
< span id = "L135" class = "LineNr" > 135 < / span > < span class = "PreProc" > fn< / span > < span class = "muFunction" > < a href = 'mandelbrot-silhouette.mu.html#L135' > viewport-to-imaginary< / a > < / span > y: int, width: int, height: int< span class = "PreProc" > -> < / span > _/< span class = "Constant" > xmm1< / span > : float < span class = "Delimiter" > {< / span >
< span id = "L136" class = "LineNr" > 136 < / span > < span class = "muComment" > # (y - height/2)*4/width< / span >
< span id = "L137" class = "LineNr" > 137 < / span > < span class = "PreProc" > var< / span > result/< span class = "Constant" > xmm0< / span > : float < span class = "Special" > < -< / span > convert y
< span id = "L138" class = "LineNr" > 138 < / span > < span class = "PreProc" > var< / span > height-f/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > convert height
< span id = "L139" class = "LineNr" > 139 < / span > < span class = "PreProc" > var< / span > half-height-f/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > copy height-f
2021-06-27 03:55:36 +00:00
< span id = "L140" class = "LineNr" > 140 < / span > < span class = "PreProc" > var< / span > two/eax: int < span class = "Special" > < -< / span > copy < span class = "Constant" > 2< / span >
2021-06-16 04:50:13 +00:00
< span id = "L141" class = "LineNr" > 141 < / span > < span class = "PreProc" > var< / span > two-f/< span class = "Constant" > xmm2< / span > : float < span class = "Special" > < -< / span > convert two
< span id = "L142" class = "LineNr" > 142 < / span > half-height-f < span class = "Special" > < -< / span > divide two-f
< span id = "L143" class = "LineNr" > 143 < / span > result < span class = "Special" > < -< / span > subtract half-height-f
2021-06-27 03:55:36 +00:00
< span id = "L144" class = "LineNr" > 144 < / span > < span class = "PreProc" > var< / span > four/eax: int < span class = "Special" > < -< / span > copy < span class = "Constant" > 4< / span >
2021-06-16 04:50:13 +00:00
< span id = "L145" class = "LineNr" > 145 < / span > < span class = "PreProc" > var< / span > four-f/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > convert four
< span id = "L146" class = "LineNr" > 146 < / span > result < span class = "Special" > < -< / span > multiply four-f
< span id = "L147" class = "LineNr" > 147 < / span > < span class = "PreProc" > var< / span > width-f/< span class = "Constant" > xmm1< / span > : float < span class = "Special" > < -< / span > convert width
< span id = "L148" class = "LineNr" > 148 < / span > result < span class = "Special" > < -< / span > divide width-f
< span id = "L149" class = "LineNr" > 149 < / span > < span class = "PreProc" > return< / span > result
< span id = "L150" class = "LineNr" > 150 < / span > < span class = "Delimiter" > }< / span >
< / pre >
< / body >
< / html >
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