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authorKartik Agaram <vc@akkartik.com>2020-10-03 19:50:24 -0700
committerKartik Agaram <vc@akkartik.com>2020-10-03 19:50:24 -0700
commit7b85e97ea8ba4076bb91cc192a111f0127e59b51 (patch)
tree5cd2d1dd3494b9c25f8fa7ab731ac0b71aba03bb /022div.cc
parent42500e3f47230fa15f3161bdb7a6e78e4377498c (diff)
downloadmu-7b85e97ea8ba4076bb91cc192a111f0127e59b51.tar.gz
6933
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0 files changed, 0 insertions, 0 deletions
 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-11-26 02:17:36 +0000


 


09 19:02:23 -0800
committer  Kartik Agaram <vc@akkartik.com>  2021-01-09 19:02:23 -0800

7494' href='/akkartik/mu/commit/html/baremetal/ex3.mu.html?h=hlt&id=7b109ab6528bfafa6ac8fd9340e5cc0217bcec50'>7b109ab6 ^


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Mu - ex3.mu</title>
<meta name="Generator" content="Vim/8.1">
<meta name="plugin-version" content="vim8.1_v1">
<meta name="syntax" content="none">
<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
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a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
.PreProc { color: #c000c0; }
.muRegEdx { color: #af5f00; }
.Special { color: #ff6060; }
.LineNr { }
.Constant { color: #008787; }
.muRegEcx { color: #870000; }
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<body onload='JumpToLine();'>
<a href='https://github.com/akkartik/mu/blob/main/ex3.mu'>https://github.com/akkartik/mu/blob/main/ex3.mu</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="muComment"># Draw pixels in response to keyboard events, starting from the top-left</span>
<span id="L2" class="LineNr"> 2 </span><span class="muComment"># and in raster order.</span>
<span id="L3" class="LineNr"> 3 </span><span class="muComment">#</span>
<span id="L4" class="LineNr"> 4 </span><span class="muComment"># To build a disk image:</span>
<span id="L5" class="LineNr"> 5 </span><span class="muComment">#   ./translate ex3.mu             # emits code.img</span>
<span id="L6" class="LineNr"> 6 </span><span class="muComment"># To run:</span>
<span id="L7" class="LineNr"> 7 </span><span class="muComment">#   qemu-system-i386 code.img</span>
<span id="L8" class="LineNr"> 8 </span><span class="muComment"># Or:</span>
<span id="L9" class="LineNr"> 9 </span><span class="muComment">#   bochs -f bochsrc               # bochsrc loads code.img</span>
<span id="L10" class="LineNr">10 </span><span class="muComment">#</span>
<span id="L11" class="LineNr">11 </span><span class="muComment"># Expected output: a new green pixel starting from the top left corner of the</span>
<span id="L12" class="LineNr">12 </span><span class="muComment"># screen every time you press a key (letter or digit)</span>
<span id="L13" class="LineNr">13 </span>
<span id="L14" class="LineNr">14 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='ex3.mu.html#L14'>main</a></span> <a href='500fake-screen.mu.html#L14'>screen</a>: (addr <a href='500fake-screen.mu.html#L14'>screen</a>), keyboard: (addr keyboard), data-disk: (addr disk) <span class="Delimiter">{</span>
<span id="L15" class="LineNr">15 </span>  <span class="PreProc">var</span> x/<span class="muRegEcx">ecx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
<span id="L16" class="LineNr">16 </span>  <span class="PreProc">var</span> y/<span class="muRegEdx">edx</span>: int <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
<span id="L17" class="LineNr">17 </span>  <span class="Delimiter">{</span>
<span id="L18" class="LineNr">18 </span>    <span class="PreProc">var</span> key/eax: byte <span class="Special">&lt;-</span> <a href='102keyboard.subx.html#L21'>read-key</a> keyboard
<span id="L19" class="LineNr">19 </span>    compare key, <span class="Constant">0</span>
<span id="L20" class="LineNr">20 </span>    <span class="PreProc">loop-if-=</span>  <span class="muComment"># busy wait</span>
<span id="L21" class="LineNr">21 </span>    <a href='101screen.subx.html#L8'>pixel-on-real-screen</a> x, y, <span class="Constant">0x31</span>/green
<span id="L22" class="LineNr">22 </span>    x <span class="Special">&lt;-</span> increment
<span id="L23" class="LineNr">23 </span>    compare x, <span class="Constant">0x400</span>/screen-width=<span class="Constant">1024</span>
<span id="L24" class="LineNr">24 </span>    <span class="Delimiter">{</span>
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<span id="L26" class="LineNr">26 </span>      y <span class="Special">&lt;-</span> increment
<span id="L27" class="LineNr">27 </span>      x <span class="Special">&lt;-</span> copy <span class="Constant">0</span>
<span id="L28" class="LineNr">28 </span>    <span class="Delimiter">}</span>
<span id="L29" class="LineNr">29 </span>    <span class="PreProc">loop</span>
<span id="L30" class="LineNr">30 </span>  <span class="Delimiter">}</span>
<span id="L31" class="LineNr">31 </span><span class="Delimiter">}</span>
</pre>
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</html>
<!-- vim: set foldmethod=manual : -->






 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-11-26 02:17:36 +0000