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diff --git a/html/102kernel-string.subx.html b/html/102kernel-string.subx.html new file mode 100644 index 00000000..ccda9cb7 --- /dev/null +++ b/html/102kernel-string.subx.html @@ -0,0 +1,149 @@ +<!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 - 102kernel-string.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; } +.subxFunction { color: #af5f00; text-decoration: underline; } +.LineNr { } +.subxS1Comment { color: #0000af; } +.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/102kernel-string.subx'>https://github.com/akkartik/mu/blob/master/102kernel-string.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># We can't really do much with null-terminated kernel strings, and we don't</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxComment"># want to. Let's turn them into regular length-prefixed strings at the first</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># opportunity.</span> +<span id="L4" class="LineNr"> 4 </span> +<span id="L5" class="LineNr"> 5 </span>== code +<span id="L6" class="LineNr"> 6 </span> +<span id="L7" class="LineNr"> 7 </span><span class="subxFunction">kernel-string-to-string</span>: <span class="subxComment"># ad: (addr allocation-descriptor), in: (addr kernel-string) -> result/eax: (addr array byte)</span> +<span id="L8" class="LineNr"> 8 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L9" class="LineNr"> 9 </span> 55/push-ebp +<span id="L10" class="LineNr">10 </span> 89/<- %ebp 4/r32/esp +<span id="L11" class="LineNr">11 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L12" class="LineNr">12 </span> 51/push-ecx +<span id="L13" class="LineNr">13 </span> 52/push-edx +<span id="L14" class="LineNr">14 </span> 53/push-ebx +<span id="L15" class="LineNr">15 </span> 56/push-esi +<span id="L16" class="LineNr">16 </span> 57/push-edi +<span id="L17" class="LineNr">17 </span> <span class="subxComment"># var len/ecx: int = length(in)</span> +<span id="L18" class="LineNr">18 </span> (<a href='102kernel-string.subx.html#L55'>kernel-string-length</a> *(ebp+0xc)) +<span id="L19" class="LineNr">19 </span> 89/<- %ecx 0/r32/eax +<span id="L20" class="LineNr">20 </span> <span class="subxComment"># result = allocate-array(ad, len)</span> +<span id="L21" class="LineNr">21 </span> (<a href='069allocate.subx.html#L557'>allocate-array</a> *(ebp+8) %ecx) <span class="subxComment"># => eax</span> +<span id="L22" class="LineNr">22 </span> <span class="subxComment"># var c/edx: byte = 0</span> +<span id="L23" class="LineNr">23 </span> ba/copy-to-edx 0/imm32 +<span id="L24" class="LineNr">24 </span> <span class="subxComment"># var src/esi: (addr byte) = in</span> +<span id="L25" class="LineNr">25 </span> 8b/-> *(ebp+0xc) 6/r32/esi +<span id="L26" class="LineNr">26 </span> <span class="subxComment"># var dest/edi: (addr byte) = result->data</span> +<span id="L27" class="LineNr">27 </span> 8d/copy-address *(eax+4) 7/r32/edi +<span id="L28" class="LineNr">28 </span> { +<span id="L29" class="LineNr">29 </span><span class="Constant">$kernel-string-to-string:loop</span>: +<span id="L30" class="LineNr">30 </span> <span class="subxComment"># c = *src</span> +<span id="L31" class="LineNr">31 </span> 8a/byte-> *esi 2/r32/edx +<span id="L32" class="LineNr">32 </span> <span class="subxComment"># if (c == 0) break</span> +<span id="L33" class="LineNr">33 </span> 81 7/subop/compare %edx 0/imm32 +<span id="L34" class="LineNr">34 </span> 74/jump-if-= <span class="Constant">break</span>/disp8 +<span id="L35" class="LineNr">35 </span> <span class="subxComment"># *dest = c</span> +<span id="L36" class="LineNr">36 </span> 88/byte<- *edi 2/r32/edx +<span id="L37" class="LineNr">37 </span> <span class="subxComment"># ++src</span> +<span id="L38" class="LineNr">38 </span> 46/increment-esi +<span id="L39" class="LineNr">39 </span> <span class="subxComment"># ++dest</span> +<span id="L40" class="LineNr">40 </span> 47/increment-edi +<span id="L41" class="LineNr">41 </span> eb/jump <span class="Constant">loop</span>/disp8 +<span id="L42" class="LineNr">42 </span> } +<span id="L43" class="LineNr">43 </span><span class="Constant">$kernel-string-to-string:end</span>: +<span id="L44" class="LineNr">44 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L45" class="LineNr">45 </span> 5f/pop-to-edi +<span id="L46" class="LineNr">46 </span> 5e/pop-to-esi +<span id="L47" class="LineNr">47 </span> 5b/pop-to-ebx +<span id="L48" class="LineNr">48 </span> 5a/pop-to-edx +<span id="L49" class="LineNr">49 </span> 59/pop-to-ecx +<span id="L50" class="LineNr">50 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L51" class="LineNr">51 </span> 89/<- %esp 5/r32/ebp +<span id="L52" class="LineNr">52 </span> 5d/pop-to-ebp +<span id="L53" class="LineNr">53 </span> c3/return +<span id="L54" class="LineNr">54 </span> +<span id="L55" class="LineNr">55 </span><span class="subxFunction">kernel-string-length</span>: <span class="subxComment"># in: (addr kernel-string) -> result/eax: int</span> +<span id="L56" class="LineNr">56 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L57" class="LineNr">57 </span> 55/push-ebp +<span id="L58" class="LineNr">58 </span> 89/<- %ebp 4/r32/esp +<span id="L59" class="LineNr">59 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L60" class="LineNr">60 </span> 51/push-ecx +<span id="L61" class="LineNr">61 </span> 52/push-edx +<span id="L62" class="LineNr">62 </span> <span class="subxComment"># result = 0</span> +<span id="L63" class="LineNr">63 </span> b8/copy-to-eax 0/imm32 +<span id="L64" class="LineNr">64 </span> <span class="subxComment"># var c/ecx: byte = 0</span> +<span id="L65" class="LineNr">65 </span> b9/copy-to-ecx 0/imm32 +<span id="L66" class="LineNr">66 </span> <span class="subxComment"># var curr/edx: (addr byte) = in</span> +<span id="L67" class="LineNr">67 </span> 8b/-> *(ebp+8) 2/r32/edx +<span id="L68" class="LineNr">68 </span> { +<span id="L69" class="LineNr">69 </span><span class="Constant">$kernel-string-length:loop</span>: +<span id="L70" class="LineNr">70 </span> <span class="subxComment"># c = *curr</span> +<span id="L71" class="LineNr">71 </span> 8a/byte-> *edx 1/r32/ecx +<span id="L72" class="LineNr">72 </span> <span class="subxComment"># if (c == 0) break</span> +<span id="L73" class="LineNr">73 </span> 81 7/subop/compare %ecx 0/imm32 +<span id="L74" class="LineNr">74 </span> 74/jump-if-= <span class="Constant">break</span>/disp8 +<span id="L75" class="LineNr">75 </span> <span class="subxComment"># ++curr</span> +<span id="L76" class="LineNr">76 </span> 42/increment-edx +<span id="L77" class="LineNr">77 </span> <span class="subxComment"># ++result</span> +<span id="L78" class="LineNr">78 </span> 40/increment-eax +<span id="L79" class="LineNr">79 </span> <span class="subxComment">#</span> +<span id="L80" class="LineNr">80 </span> eb/jump <span class="Constant">loop</span>/disp8 +<span id="L81" class="LineNr">81 </span> } +<span id="L82" class="LineNr">82 </span><span class="Constant">$kernel-string-length:end</span>: +<span id="L83" class="LineNr">83 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L84" class="LineNr">84 </span> 5a/pop-to-edx +<span id="L85" class="LineNr">85 </span> 59/pop-to-ecx +<span id="L86" class="LineNr">86 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L87" class="LineNr">87 </span> 89/<- %esp 5/r32/ebp +<span id="L88" class="LineNr">88 </span> 5d/pop-to-ebp +<span id="L89" class="LineNr">89 </span> c3/return +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |