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| author | Kartik Agaram <vc@akkartik.com> | 2018-09-07 15:08:54 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-09-07 15:08:54 -0700 |
| commit | 608a7fa8d0faf9a3e3d182d9eabe969804443aab (patch) | |
| tree | 7e1934d9ef0e8372381c306312591235c4f27110 /html/subx/examples/ex7.subx.html | |
| parent | a6517ed821ff39fa56eb3b975799d22497d78a48 (diff) | |
| download | mu-608a7fa8d0faf9a3e3d182d9eabe969804443aab.tar.gz | |
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Diffstat (limited to 'html/subx/examples/ex7.subx.html')
| -rw-r--r-- | html/subx/examples/ex7.subx.html | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/html/subx/examples/ex7.subx.html b/html/subx/examples/ex7.subx.html new file mode 100644 index 00000000..ecf0f0f8 --- /dev/null +++ b/html/subx/examples/ex7.subx.html @@ -0,0 +1,163 @@ +<!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 - subx/examples/ex7.subx</title> +<meta name="Generator" content="Vim/8.0"> +<meta name="plugin-version" content="vim7.4_v2"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.LineNr { color: #444444; } +.Delimiter { color: #800080; } +.Comment { color: #9090ff; } +.Comment a { color:#0000ee; text-decoration:underline; } +.SalientComment { color: #00ffff; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## example showing file syscalls</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment"># Create a file, open it for writing, write a character to it, close it, open</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># it for reading, read a character from it, close it, delete it, and return</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># the character read.</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment">#</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># To run:</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ subx translate ex8.subx ex8</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># $ subx run ex8</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># Expected result:</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># $ echo $?</span> +<span id="L11" class="LineNr"> 11 </span><span class="Comment"># 97</span> +<span id="L12" class="LineNr"> 12 </span> +<span id="L13" class="LineNr"> 13 </span>== <a href='031check_operands.cc.html#L14'>code</a> +<span id="L14" class="LineNr"> 14 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L15" class="LineNr"> 15 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L16" class="LineNr"> 16 </span><span class="Comment"># 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="L17" class="LineNr"> 17 </span> +<span id="L18" class="LineNr"> 18 </span> <span class="SalientComment">## creat(filename)</span> +<span id="L19" class="LineNr"> 19 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> filename/imm32 <span class="Comment"># copy to EBX</span> +<span id="L20" class="LineNr"> 20 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x180/imm32/fixed-perms <span class="Comment"># copy to ECX</span> +<span id="L21" class="LineNr"> 21 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32/creat <span class="Comment"># copy 8 to EAX</span> +<span id="L22" class="LineNr"> 22 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L23" class="LineNr"> 23 </span> +<span id="L24" class="LineNr"> 24 </span> <span class="SalientComment">## stream = open(filename, O_WRONLY, 0) # we can't use 'fd' because it looks like a hex byte</span> +<span id="L25" class="LineNr"> 25 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> filename/imm32 <span class="Comment"># copy to EBX</span> +<span id="L26" class="LineNr"> 26 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/wronly <span class="Comment"># copy 1 to ECX</span> +<span id="L27" class="LineNr"> 27 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x180/imm32/fixed-perms <span class="Comment"># copy 0 to EDX</span> +<span id="L28" class="LineNr"> 28 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/imm32/open <span class="Comment"># copy 5 to EAX</span> +<span id="L29" class="LineNr"> 29 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Comment"># save stream</span> +<span id="L31" class="LineNr"> 31 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> +<span id="L32" class="LineNr"> 32 </span> 89/copy 0/mod/indirect 3/rm32/EBX 0/r32/EAX <span class="Comment"># copy EAX to *EBX</span> +<span id="L33" class="LineNr"> 33 </span> +<span id="L34" class="LineNr"> 34 </span> <span class="SalientComment">## write(stream, "a", 1)</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Comment"># load stream</span> +<span id="L36" class="LineNr"> 36 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> +<span id="L37" class="LineNr"> 37 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Comment">#</span> +<span id="L39" class="LineNr"> 39 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> a/imm32 <span class="Comment"># copy to ECX</span> +<span id="L40" class="LineNr"> 40 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/size <span class="Comment"># copy 1 to EDX</span> +<span id="L41" class="LineNr"> 41 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32/write <span class="Comment"># copy 4 to EAX</span> +<span id="L42" class="LineNr"> 42 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L43" class="LineNr"> 43 </span> +<span id="L44" class="LineNr"> 44 </span> <span class="SalientComment">## close(stream)</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># load stream</span> +<span id="L46" class="LineNr"> 46 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> +<span id="L47" class="LineNr"> 47 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Comment">#</span> +<span id="L49" class="LineNr"> 49 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/imm32/close <span class="Comment"># copy 6 to EAX</span> +<span id="L50" class="LineNr"> 50 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L51" class="LineNr"> 51 </span> +<span id="L52" class="LineNr"> 52 </span> <span class="SalientComment">## stream = open(filename, O_RDONLY, 0)</span> +<span id="L53" class="LineNr"> 53 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> filename/imm32 <span class="Comment"># copy to EBX</span> +<span id="L54" class="LineNr"> 54 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32/rdonly <span class="Comment"># copy 0 to ECX</span> +<span id="L55" class="LineNr"> 55 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x180/imm32/fixed-perms <span class="Comment"># copy to EDX</span> +<span id="L56" class="LineNr"> 56 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/imm32/open <span class="Comment"># copy 5 to EAX</span> +<span id="L57" class="LineNr"> 57 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># save stream</span> +<span id="L59" class="LineNr"> 59 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> +<span id="L60" class="LineNr"> 60 </span> 89/copy 0/mod/indirect 3/rm32/EBX 0/r32/EAX <span class="Comment"># copy EAX to *EBX</span> +<span id="L61" class="LineNr"> 61 </span> +<span id="L62" class="LineNr"> 62 </span> <span class="SalientComment">## read(stream, b, 1)</span> +<span id="L63" class="LineNr"> 63 </span> <span class="Comment"># load stream</span> +<span id="L64" class="LineNr"> 64 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> +<span id="L65" class="LineNr"> 65 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> +<span id="L66" class="LineNr"> 66 </span> <span class="Comment">#</span> +<span id="L67" class="LineNr"> 67 </span> b9/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> b/imm32 <span class="Comment"># copy to ECX</span> +<span id="L68" class="LineNr"> 68 </span> ba/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/size <span class="Comment"># copy 1 to EDX</span> +<span id="L69" class="LineNr"> 69 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/imm32/read <span class="Comment"># copy 3 to EAX</span> +<span id="L70" class="LineNr"> 70 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L71" class="LineNr"> 71 </span> +<span id="L72" class="LineNr"> 72 </span> <span class="SalientComment">## close(stream)</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Comment"># load stream</span> +<span id="L74" class="LineNr"> 74 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> stream/imm32 <span class="Comment"># copy to EBX</span> +<span id="L75" class="LineNr"> 75 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Comment">#</span> +<span id="L77" class="LineNr"> 77 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/imm32/close <span class="Comment"># copy 6 to EAX</span> +<span id="L78" class="LineNr"> 78 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L79" class="LineNr"> 79 </span> +<span id="L80" class="LineNr"> 80 </span> <span class="SalientComment">## unlink(filename)</span> +<span id="L81" class="LineNr"> 81 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> filename/imm32 <span class="Comment"># copy to EBX</span> +<span id="L82" class="LineNr"> 82 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xa/imm32/unlink <span class="Comment"># copy 10 to EAX</span> +<span id="L83" class="LineNr"> 83 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L84" class="LineNr"> 84 </span> +<span id="L85" class="LineNr"> 85 </span> <span class="SalientComment">## exit(b)</span> +<span id="L86" class="LineNr"> 86 </span> <span class="Comment"># load b</span> +<span id="L87" class="LineNr"> 87 </span> bb/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> b/imm32 <span class="Comment"># copy to EBX</span> +<span id="L88" class="LineNr"> 88 </span> 8b/copy 0/mod/indirect 3/rm32/EBX 3/r32/EBX <span class="Comment"># copy *EBX to EBX</span> +<span id="L89" class="LineNr"> 89 </span> <span class="Comment">#</span> +<span id="L90" class="LineNr"> 90 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L91" class="LineNr"> 91 </span> cd/syscall <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L92" class="LineNr"> 92 </span> +<span id="L93" class="LineNr"> 93 </span>== <a href='011run.cc.html#L122'>data</a> +<span id="L94" class="LineNr"> 94 </span>stream: +<span id="L95" class="LineNr"> 95 </span>00 00 00 00 +<span id="L96" class="LineNr"> 96 </span>a: +<span id="L97" class="LineNr"> 97 </span>61 00 00 00 +<span id="L98" class="LineNr"> 98 </span>b: +<span id="L99" class="LineNr"> 99 </span>00 00 00 00 +<span id="L100" class="LineNr">100 </span>filename: +<span id="L101" class="LineNr">101 </span>2e 66 6f 6f 00 00 00 00 +<span id="L102" class="LineNr">102 </span> +<span id="L103" class="LineNr">103 </span><span class="Comment"># vim:ft=subx:nowrap:tw&</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |