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| author | Kartik K. Agaram <vc@akkartik.com> | 2021-07-16 08:38:43 -0700 |
|---|---|---|
| committer | Kartik K. Agaram <vc@akkartik.com> | 2021-07-16 08:38:43 -0700 |
| commit | 78357b8852626b510527f3b8d770a7dd8956fcc7 (patch) | |
| tree | 5e38d0f616ab151e66618090487b41dd2fc348e0 /html/linux/apps/ex13.subx.html | |
| parent | 44d26b77c45668c9b0c99894a4294cec004361fe (diff) | |
| download | mu-78357b8852626b510527f3b8d770a7dd8956fcc7.tar.gz | |
.
Diffstat (limited to 'html/linux/apps/ex13.subx.html')
| -rw-r--r-- | html/linux/apps/ex13.subx.html | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/html/linux/apps/ex13.subx.html b/html/linux/apps/ex13.subx.html new file mode 100644 index 00000000..c0181b6c --- /dev/null +++ b/html/linux/apps/ex13.subx.html @@ -0,0 +1,87 @@ +<!DOCTYPE html> +<html> +<head> +<meta charset="UTF-8"> +<title>Mu - linux/apps/ex13.subx</title> +<meta name="Generator" content="Vim/8.2"> +<meta name="plugin-version" content="vim8.1_v2"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy=,use_input_for_pc=fallback"> +<meta name="colorscheme" content="minimal-light"> +<style> +<!-- +pre { font-family: monospace; color: #000000; background-color: #ffffd7; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #ffffd7; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.subxS2Comment { color: #8a8a8a; } +.LineNr { } +.subxS1Comment { color: #0000af; } +.Constant { color: #008787; } +.SpecialChar { color: #d70000; } +.Normal { color: #000000; background-color: #ffffd7; padding-bottom: 1px; } +--> +</style> + +<script> +<!-- + +/* 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/main/linux/apps/ex13.subx'>https://github.com/akkartik/mu/blob/main/linux/apps/ex13.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Compare 3 and 3.</span> +<span id="L2" class="LineNr"> 2 </span><span class="subxComment">#</span> +<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># To run:</span> +<span id="L4" class="LineNr"> 4 </span><span class="subxComment"># $ bootstrap/bootstrap translate apps/ex13.subx -o ex13</span> +<span id="L5" class="LineNr"> 5 </span><span class="subxComment"># $ bootstrap/bootstrap run ex13</span> +<span id="L6" class="LineNr"> 6 </span><span class="subxComment"># Expected result:</span> +<span id="L7" class="LineNr"> 7 </span><span class="subxComment"># $ echo $?</span> +<span id="L8" class="LineNr"> 8 </span><span class="subxComment"># 1</span> +<span id="L9" class="LineNr"> 9 </span> +<span id="L10" class="LineNr">10 </span>== code +<span id="L11" class="LineNr">11 </span><span class="subxComment"># instruction effective address register displacement immediate</span> +<span id="L12" class="LineNr">12 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> +<span id="L13" class="LineNr">13 </span><span class="subxS1Comment"># . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L14" class="LineNr">14 </span> +<span id="L15" class="LineNr">15 </span><span class="SpecialChar">Entry</span>: +<span id="L16" class="LineNr">16 </span> b8/copy-to-eax 3/imm32 +<span id="L17" class="LineNr">17 </span> 3d/compare-eax-and 3/imm32 +<span id="L18" class="LineNr">18 </span> 0f 94/set-if-= 3/mod/direct 3/rm32/ebx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># set ebx to ZF</span> +<span id="L19" class="LineNr">19 </span> 81 4/subop/and 3/mod/direct 3/rm32/ebx <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xff/imm32 <span class="subxComment"># AND with eax</span> +<span id="L20" class="LineNr">20 </span> +<span id="L21" class="LineNr">21 </span><span class="Constant">$exit</span>: +<span id="L22" class="LineNr">22 </span> <span class="subxComment"># exit(ebx)</span> +<span id="L23" class="LineNr">23 </span> e8/call <a href='../000init.subx.html#L18'>syscall_exit</a>/disp32 +<span id="L24" class="LineNr">24 </span> +<span id="L25" class="LineNr">25 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |