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Kartik Agaram 2020-12-29 19:28:56 -08:00
parent c35ae0085c
commit 395f736d1a
3 changed files with 178 additions and 0 deletions
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76
html/baremetal/ex1.subx.html generated Normal file
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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 - baremetal/ex1.subx</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=">
<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; }
.subxComment { color: #005faf; }
.LineNr { }
.Constant { color: #008787; }
-->
</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/baremetal/ex1.subx'>https://github.com/akkartik/mu/blob/master/baremetal/ex1.subx</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># The simplest possible program: just an infinite loop.</span>
<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># All is well if your computer clears screen and hangs without restarting.</span>
<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># On an emulator the window may get bigger to accomodate the higher-resolution</span>
<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># graphics mode.</span>
<span id="L5" class="LineNr"> 5 </span><span class="subxComment">#</span>
<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># To build a disk image:</span>
<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># ./translate_subx_baremetal baremetal/ex2.subx # emits disk.img</span>
<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># To run:</span>
<span id="L9" class="LineNr"> 9 </span><span class="subxComment"># qemu-system-i386 disk.img</span>
<span id="L10" class="LineNr">10 </span><span class="subxComment"># Or:</span>
<span id="L11" class="LineNr">11 </span><span class="subxComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span>
<span id="L12" class="LineNr">12 </span>
<span id="L13" class="LineNr">13 </span>== code
<span id="L14" class="LineNr">14 </span>
<span id="L15" class="LineNr">15 </span><span class="Constant">$loop</span>:
<span id="L16" class="LineNr">16 </span>e9/jump $loop/disp32
<span id="L17" class="LineNr">17 </span>
<span id="L18" class="LineNr">18 </span><span class="subxComment"># vim&#0058;ft=subx</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->

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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 - baremetal/ex2.subx</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=">
<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; }
.subxComment { color: #005faf; }
.LineNr { }
.Constant { color: #008787; }
-->
</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/baremetal/ex2.subx'>https://github.com/akkartik/mu/blob/master/baremetal/ex2.subx</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Test out the video mode by filling in the screen with pixels.</span>
<span id="L2" class="LineNr"> 2 </span><span class="subxComment">#</span>
<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># To build a disk image:</span>
<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># ./translate_subx_baremetal baremetal/ex2.subx # emits disk.img</span>
<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># To run:</span>
<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># qemu-system-i386 disk.img</span>
<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># Or:</span>
<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># bochs -f baremetal/boot.bochsrc # boot.bochsrc loads disk.img</span>
<span id="L9" class="LineNr"> 9 </span>
<span id="L10" class="LineNr">10 </span><span class="subxComment"># main: (address 0x8800)</span>
<span id="L11" class="LineNr">11 </span>
<span id="L12" class="LineNr">12 </span>== code
<span id="L13" class="LineNr">13 </span>
<span id="L14" class="LineNr">14 </span><span class="subxComment"># ecx &lt;- start of video memory</span>
<span id="L15" class="LineNr">15 </span>8b/-&gt; 0/mod/indirect 5/rm32/use-disp32 0x7f28/disp32/video-memory 1/r32/ecx
<span id="L16" class="LineNr">16 </span>
<span id="L17" class="LineNr">17 </span><span class="subxComment"># eax &lt;- final pixel of video memory</span>
<span id="L18" class="LineNr">18 </span>8d/copy-address *(ecx + 0x0bffff) 0/r32/eax <span class="subxComment"># 0xbffff = 1024*768 - 1</span>
<span id="L19" class="LineNr">19 </span>
<span id="L20" class="LineNr">20 </span><span class="subxComment"># for each pixel in video memory</span>
<span id="L21" class="LineNr">21 </span>{
<span id="L22" class="LineNr">22 </span> 39/compare %eax 1/r32/ecx
<span id="L23" class="LineNr">23 </span> 7c/jump-if-&lt; <span class="Constant">break</span>/disp8
<span id="L24" class="LineNr">24 </span> <span class="subxComment"># write its column number to it</span>
<span id="L25" class="LineNr">25 </span> 88/byte&lt;- *eax 0/r32/AL
<span id="L26" class="LineNr">26 </span> 48/decrement-eax
<span id="L27" class="LineNr">27 </span> eb/jump <span class="Constant">loop</span>/disp8
<span id="L28" class="LineNr">28 </span>}
<span id="L29" class="LineNr">29 </span>
<span id="L30" class="LineNr">30 </span><span class="subxComment"># hang indefinitely</span>
<span id="L31" class="LineNr">31 </span>{
<span id="L32" class="LineNr">32 </span> eb/jump <span class="Constant">loop</span>/disp8
<span id="L33" class="LineNr">33 </span>}
<span id="L34" class="LineNr">34 </span>
<span id="L35" class="LineNr">35 </span><span class="subxComment"># vim&#0058;ft=subx</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->

9
tools/update_html
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@ -90,4 +90,13 @@ do
process $f
done
for f in baremetal/*.subx
do
test $# -gt 0 && test $1 != $f && continue
( cd baremetal
ctags -x [0-9]*.subx [0-9]*.mu `basename $f` > /tmp/tags
)
process $f
done
rm /tmp/tags