diff options
| author | Kartik Agaram <vc@akkartik.com> | 2018-09-22 00:32:03 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-09-22 00:32:03 -0700 |
| commit | 1a4de9dd58201bb57a07ea931d1764064fc52e64 (patch) | |
| tree | 491ddf356cba78cb0ae248a9daa065e475c0a3da /html/subx/examples | |
| parent | 08c2f2a5ce0a55c1b33314309ab857d305a0e58b (diff) | |
| download | mu-1a4de9dd58201bb57a07ea931d1764064fc52e64.tar.gz | |
4588
Diffstat (limited to 'html/subx/examples')
| -rw-r--r-- | html/subx/examples/ex1.2.subx.html | 2 | ||||
| -rw-r--r-- | html/subx/examples/ex10.subx.html | 130 | ||||
| -rw-r--r-- | html/subx/examples/ex2.subx.html | 2 | ||||
| -rw-r--r-- | html/subx/examples/ex3.subx.html | 6 | ||||
| -rw-r--r-- | html/subx/examples/ex4.subx.html | 36 | ||||
| -rw-r--r-- | html/subx/examples/ex5.subx.html | 36 | ||||
| -rw-r--r-- | html/subx/examples/ex6.subx.html | 43 | ||||
| -rw-r--r-- | html/subx/examples/ex7.subx.html | 68 | ||||
| -rw-r--r-- | html/subx/examples/ex8.subx.html | 21 | ||||
| -rw-r--r-- | html/subx/examples/ex9.subx.html | 109 |
10 files changed, 346 insertions, 107 deletions
diff --git a/html/subx/examples/ex1.2.subx.html b/html/subx/examples/ex1.2.subx.html index aa5cb359..0e7ec547 100644 --- a/html/subx/examples/ex1.2.subx.html +++ b/html/subx/examples/ex1.2.subx.html @@ -70,7 +70,7 @@ if ('onhashchange' in window) { <span id="L15" class="LineNr">15 </span> bb/copy 2a/imm32 <span class="Comment"># copy 42 to EBX</span> <span id="L16" class="LineNr">16 </span> <span class="Comment"># exit(EBX)</span> <span id="L17" class="LineNr">17 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L18" class="LineNr">18 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L18" class="LineNr">18 </span> cd/syscall 0x80/imm8 <span id="L19" class="LineNr">19 </span> <span id="L20" class="LineNr">20 </span><span class="Comment"># vim:ft=subx</span> </pre> diff --git a/html/subx/examples/ex10.subx.html b/html/subx/examples/ex10.subx.html new file mode 100644 index 00000000..8ab82466 --- /dev/null +++ b/html/subx/examples/ex10.subx.html @@ -0,0 +1,130 @@ +<!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/ex10.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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; 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">## String comparison: return 1 iff the two args passed in at the commandline are equal.</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex10.subx ex10</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex10 abc abd</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ echo $?</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># 0 # false</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="Comment"># instruction effective address operand displacement immediate</span> +<span id="L12" class="LineNr">12 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L13" class="LineNr">13 </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="L14" class="LineNr">14 </span> +<span id="L15" class="LineNr">15 </span><span class="Comment"># main: return argv_equal(argv[1], argv[2])</span> +<span id="L16" class="LineNr">16 </span><span class="Comment"># At the start of a SubX program:</span> +<span id="L17" class="LineNr">17 </span><span class="Comment"># argc: *ESP</span> +<span id="L18" class="LineNr">18 </span><span class="Comment"># argv[0]: *(ESP+4)</span> +<span id="L19" class="LineNr">19 </span><span class="Comment"># argv[1]: *(ESP+8)</span> +<span id="L20" class="LineNr">20 </span><span class="Comment"># ...</span> +<span id="L21" class="LineNr">21 </span> <span class="Comment"># s1 = argv[1] (EAX)</span> +<span id="L22" class="LineNr">22 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EAX</span> +<span id="L23" class="LineNr">23 </span> <span class="Comment"># s2 = argv[2] (EBX)</span> +<span id="L24" class="LineNr">24 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+12) to EBX</span> +<span id="L25" class="LineNr">25 </span> <span class="Comment"># call argv_equal(s1, s2)</span> +<span id="L26" class="LineNr">26 </span> <span class="Comment"># push args</span> +<span id="L27" class="LineNr">27 </span> 50/push <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> <span class="Delimiter"> . </span> <span class="Comment"># push EAX</span> +<span id="L28" class="LineNr">28 </span> 53/push <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> <span class="Delimiter"> . </span> <span class="Comment"># push EBX</span> +<span id="L29" class="LineNr">29 </span> <span class="Comment"># call</span> +<span id="L30" class="LineNr">30 </span> e8/call argv_equal/disp32 +<span id="L31" class="LineNr">31 </span> <span class="Comment"># exit(EAX)</span> +<span id="L32" class="LineNr">32 </span>$exit: +<span id="L33" class="LineNr">33 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L34" class="LineNr">34 </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 <span class="Comment"># copy 1 to EAX</span> +<span id="L35" class="LineNr">35 </span> cd/syscall 0x80/imm8 +<span id="L36" class="LineNr">36 </span> +<span id="L37" class="LineNr">37 </span><span class="Comment"># compare two null-terminated ascii strings</span> +<span id="L38" class="LineNr">38 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> +<span id="L39" class="LineNr">39 </span>argv_equal: <span class="Comment"># (s1, s2) : null-terminated ascii strings -> EAX : boolean</span> +<span id="L40" class="LineNr">40 </span> <span class="Comment"># initialize s1 (ECX) and s2 (EDX)</span> +<span id="L41" class="LineNr">41 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to ECX</span> +<span id="L42" class="LineNr">42 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EDX</span> +<span id="L43" class="LineNr">43 </span> <span class="Comment"># while (true)</span> +<span id="L44" class="LineNr">44 </span>$argv_loop: +<span id="L45" class="LineNr">45 </span> <span class="Comment"># c1/EAX, c2/EBX = *s1, *s2</span> +<span id="L46" class="LineNr">46 </span> b8/copy 0/imm32 <span class="Comment"># clear EAX</span> +<span id="L47" class="LineNr">47 </span> 8a/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ECX to lower byte of EAX</span> +<span id="L48" class="LineNr">48 </span> bb/copy 0/imm32 <span class="Comment"># clear EBX</span> +<span id="L49" class="LineNr">49 </span> 8a/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDX to lower byte of EBX</span> +<span id="L50" class="LineNr">50 </span> <span class="Comment"># if (c1 == 0) break</span> +<span id="L51" class="LineNr">51 </span> 3d/compare <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 <span class="Comment"># compare EAX with 0</span> +<span id="L52" class="LineNr">52 </span> 74/jump-if-equal $argv_break/disp8 +<span id="L53" class="LineNr">53 </span> <span class="Comment"># if (c1 != c2) return false</span> +<span id="L54" class="LineNr">54 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with EBX</span> +<span id="L55" class="LineNr">55 </span> 75/jump-if-not-equal $argv_fail/disp8 +<span id="L56" class="LineNr">56 </span> <span class="Comment"># ++s1, ++s2</span> +<span id="L57" class="LineNr">57 </span> 41/inc-ECX +<span id="L58" class="LineNr">58 </span> 42/inc-EDX +<span id="L59" class="LineNr">59 </span> <span class="Comment"># end while</span> +<span id="L60" class="LineNr">60 </span> eb/jump $argv_loop/disp8 +<span id="L61" class="LineNr">61 </span>$argv_break: +<span id="L62" class="LineNr">62 </span> <span class="Comment"># if (c2 == 0) return true</span> +<span id="L63" class="LineNr">63 </span> 81 7/subop/compare 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EBX with 0</span> +<span id="L64" class="LineNr">64 </span> 75/jump-if-not-equal $argv_fail/disp8 +<span id="L65" class="LineNr">65 </span> b8/copy <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># copy 1 to EAX</span> +<span id="L66" class="LineNr">66 </span> c3/return +<span id="L67" class="LineNr">67 </span> <span class="Comment"># return false</span> +<span id="L68" class="LineNr">68 </span>$argv_fail: +<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> 0/imm32 <span class="Comment"># copy 0 to EAX</span> +<span id="L70" class="LineNr">70 </span> c3/return +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/examples/ex2.subx.html b/html/subx/examples/ex2.subx.html index e372f373..79014ace 100644 --- a/html/subx/examples/ex2.subx.html +++ b/html/subx/examples/ex2.subx.html @@ -70,7 +70,7 @@ if ('onhashchange' in window) { <span id="L15" class="LineNr">15 </span> 81 0/subop/add 3/mod/direct 3/rm32/EBX 1/imm32 <span class="Comment"># add 1 to EBX</span> <span id="L16" class="LineNr">16 </span> <span class="Comment"># exit(EBX)</span> <span id="L17" class="LineNr">17 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L18" class="LineNr">18 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L18" class="LineNr">18 </span> cd/syscall 0x80/imm8 <span id="L19" class="LineNr">19 </span> <span id="L20" class="LineNr">20 </span><span class="Comment"># vim:ft=subx</span> </pre> diff --git a/html/subx/examples/ex3.subx.html b/html/subx/examples/ex3.subx.html index baea67fa..ef71e45f 100644 --- a/html/subx/examples/ex3.subx.html +++ b/html/subx/examples/ex3.subx.html @@ -74,18 +74,18 @@ if ('onhashchange' in window) { <span id="L19" class="LineNr">19 </span>$loop: <span id="L20" class="LineNr">20 </span> <span class="Comment"># while (counter <= 10)</span> <span id="L21" class="LineNr">21 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX 0xa/imm32 <span class="Comment"># compare ECX, 10/imm</span> -<span id="L22" class="LineNr">22 </span> 7f/jump-if $exit/disp8 <span class="Comment"># jump-if-greater $exit</span> +<span id="L22" class="LineNr">22 </span> 7f/jump-if-greater $exit/disp8 <span id="L23" class="LineNr">23 </span> <span class="Comment"># result += counter</span> <span id="L24" class="LineNr">24 </span> 01/add 3/mod/direct 3/rm32/EBX 1/r32/ECX <span class="Comment"># add ECX to EBX</span> <span id="L25" class="LineNr">25 </span> <span class="Comment"># ++counter</span> <span id="L26" class="LineNr">26 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX 1/imm32 <span class="Comment"># add 1 to ECX</span> <span id="L27" class="LineNr">27 </span> <span class="Comment"># loop</span> -<span id="L28" class="LineNr">28 </span> eb/jump $loop/disp8 <span class="Comment"># jump $loop</span> +<span id="L28" class="LineNr">28 </span> eb/jump $loop/disp8 <span id="L29" class="LineNr">29 </span> <span id="L30" class="LineNr">30 </span>$exit: <span id="L31" class="LineNr">31 </span> <span class="Comment"># exit(EBX)</span> <span id="L32" class="LineNr">32 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L33" class="LineNr">33 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L33" class="LineNr">33 </span> cd/syscall 0x80/imm8 <span id="L34" class="LineNr">34 </span> <span id="L35" class="LineNr">35 </span><span class="Comment"># vim:ft=subx:nowrap</span> </pre> diff --git a/html/subx/examples/ex4.subx.html b/html/subx/examples/ex4.subx.html index 94014c9b..aff62ea1 100644 --- a/html/subx/examples/ex4.subx.html +++ b/html/subx/examples/ex4.subx.html @@ -64,35 +64,35 @@ if ('onhashchange' in window) { <span id="L9" class="LineNr"> 9 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L10" class="LineNr">10 </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="L11" class="LineNr">11 </span> -<span id="L12" class="LineNr">12 </span> <span class="SalientComment">## read(stdin, x, 1)</span> -<span id="L13" class="LineNr">13 </span> <span class="Comment"># fd = 0 (stdin)</span> +<span id="L12" class="LineNr">12 </span> <span class="Comment"># read(stdin, x, 1)</span> +<span id="L13" class="LineNr">13 </span> <span class="Comment"># fd = 0 (stdin)</span> <span id="L14" class="LineNr">14 </span> bb/copy 0/imm32 <span class="Comment"># copy 0 to EBX</span> -<span id="L15" class="LineNr">15 </span> <span class="Comment"># initialize x (location to write result to)</span> +<span id="L15" class="LineNr">15 </span> <span class="Comment"># initialize x (location to write result to)</span> <span id="L16" class="LineNr">16 </span> b9/copy x/imm32 <span class="Comment"># copy to ECX</span> -<span id="L17" class="LineNr">17 </span> <span class="Comment"># size = 1 character</span> +<span id="L17" class="LineNr">17 </span> <span class="Comment"># size = 1 character</span> <span id="L18" class="LineNr">18 </span> ba/copy 1/imm32 <span class="Comment"># copy 1 to EDX</span> -<span id="L19" class="LineNr">19 </span> <span class="Comment"># read(fd, x, size)</span> -<span id="L20" class="LineNr">20 </span> b8/copy 3/imm32 <span class="Comment"># copy 3 to EAX</span> -<span id="L21" class="LineNr">21 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L19" class="LineNr">19 </span> <span class="Comment"># read(fd, x, size)</span> +<span id="L20" class="LineNr">20 </span> b8/copy 3/imm32/read <span class="Comment"># copy 3 to EAX</span> +<span id="L21" class="LineNr">21 </span> cd/syscall 0x80/imm8 <span id="L22" class="LineNr">22 </span> -<span id="L23" class="LineNr">23 </span> <span class="SalientComment">## write(stdout, x, 1)</span> -<span id="L24" class="LineNr">24 </span> <span class="Comment"># fd = 1 (stdout)</span> +<span id="L23" class="LineNr">23 </span> <span class="Comment"># write(stdout, x, 1)</span> +<span id="L24" class="LineNr">24 </span> <span class="Comment"># fd = 1 (stdout)</span> <span id="L25" class="LineNr">25 </span> bb/copy 1/imm32 <span class="Comment"># copy 1 to EBX</span> -<span id="L26" class="LineNr">26 </span> <span class="Comment"># initialize x (location to read from)</span> +<span id="L26" class="LineNr">26 </span> <span class="Comment"># initialize x (location to read from)</span> <span id="L27" class="LineNr">27 </span> b9/copy x/imm32 <span class="Comment"># copy to ECX</span> -<span id="L28" class="LineNr">28 </span> <span class="Comment"># size = 1 character</span> +<span id="L28" class="LineNr">28 </span> <span class="Comment"># size = 1 character</span> <span id="L29" class="LineNr">29 </span> ba/copy 1/imm32 <span class="Comment"># copy 1 to EDX</span> -<span id="L30" class="LineNr">30 </span> <span class="Comment"># write(fd, x, size)</span> -<span id="L31" class="LineNr">31 </span> b8/copy 4/imm32 <span class="Comment"># copy 4 to EAX</span> -<span id="L32" class="LineNr">32 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L30" class="LineNr">30 </span> <span class="Comment"># write(fd, x, size)</span> +<span id="L31" class="LineNr">31 </span> b8/copy 4/imm32/write <span class="Comment"># copy 4 to EAX</span> +<span id="L32" class="LineNr">32 </span> cd/syscall 0x80/imm8 <span id="L33" class="LineNr">33 </span> -<span id="L34" class="LineNr">34 </span> <span class="SalientComment">## exit(EBX)</span> -<span id="L35" class="LineNr">35 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L36" class="LineNr">36 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L34" class="LineNr">34 </span> <span class="Comment"># exit(EBX)</span> +<span id="L35" class="LineNr">35 </span> b8/copy 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L36" class="LineNr">36 </span> cd/syscall 0x80/imm8 <span id="L37" class="LineNr">37 </span> <span id="L38" class="LineNr">38 </span>== data <span id="L39" class="LineNr">39 </span>x: -<span id="L40" class="LineNr">40 </span>00 00 00 00 <span class="Comment"># space for read() to write to</span> +<span id="L40" class="LineNr">40 </span> 00 00 00 00 <span class="Comment"># space for read() to write to</span> <span id="L41" class="LineNr">41 </span> <span id="L42" class="LineNr">42 </span><span class="Comment"># vim:ft=subx:nowrap</span> </pre> diff --git a/html/subx/examples/ex5.subx.html b/html/subx/examples/ex5.subx.html index 6034b3f2..aa4f9761 100644 --- a/html/subx/examples/ex5.subx.html +++ b/html/subx/examples/ex5.subx.html @@ -64,38 +64,38 @@ if ('onhashchange' in window) { <span id="L9" class="LineNr"> 9 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L10" class="LineNr">10 </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="L11" class="LineNr">11 </span> -<span id="L12" class="LineNr">12 </span><span class="SalientComment">## function main</span> +<span id="L12" class="LineNr">12 </span><span class="Comment"># main:</span> <span id="L13" class="LineNr">13 </span> <span class="Comment"># prolog</span> <span id="L14" class="LineNr">14 </span> 55/push <span class="Comment"># push EBP</span> <span id="L15" class="LineNr">15 </span> 89/copy 3/mod/direct 5/rm32/EBP 4/r32/ESP <span class="Comment"># copy ESP to EBP</span> <span id="L16" class="LineNr">16 </span> <span class="Comment"># allocate x on the stack</span> <span id="L17" class="LineNr">17 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP 4/imm32 <span class="Comment"># subtract 4 bytes from ESP</span> <span id="L18" class="LineNr">18 </span> -<span id="L19" class="LineNr">19 </span> <span class="SalientComment">## read(stdin, x, 1)</span> -<span id="L20" class="LineNr">20 </span> <span class="Comment"># fd = 0 (stdin)</span> +<span id="L19" class="LineNr">19 </span> <span class="Comment"># read(stdin, x, 1)</span> +<span id="L20" class="LineNr">20 </span> <span class="Comment"># fd = 0 (stdin)</span> <span id="L21" class="LineNr">21 </span> bb/copy 0/imm32 <span class="Comment"># copy 0 to EBX</span> -<span id="L22" class="LineNr">22 </span> <span class="Comment"># initialize x (location to write result to)</span> +<span id="L22" class="LineNr">22 </span> <span class="Comment"># initialize x (location to write result to)</span> <span id="L23" class="LineNr">23 </span> 89/copy 3/mod/direct 1/rm32/ECX 5/r32/EBP <span class="Comment"># copy EBP to ECX</span> -<span id="L24" class="LineNr">24 </span> <span class="Comment"># size = 1 character</span> +<span id="L24" class="LineNr">24 </span> <span class="Comment"># size = 1 character</span> <span id="L25" class="LineNr">25 </span> ba/copy 1/imm32 <span class="Comment"># copy 1 to EDX</span> -<span id="L26" class="LineNr">26 </span> <span class="Comment"># read(fd, x, size)</span> -<span id="L27" class="LineNr">27 </span> b8/copy 3/imm32 <span class="Comment"># copy 3 to EAX</span> -<span id="L28" class="LineNr">28 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L26" class="LineNr">26 </span> <span class="Comment"># read(fd, x, size)</span> +<span id="L27" class="LineNr">27 </span> b8/copy 3/imm32/read <span class="Comment"># copy 3 to EAX</span> +<span id="L28" class="LineNr">28 </span> cd/syscall 0x80/imm8 <span id="L29" class="LineNr">29 </span> -<span id="L30" class="LineNr">30 </span> <span class="SalientComment">## write(stdout, x, 1)</span> -<span id="L31" class="LineNr">31 </span> <span class="Comment"># fd = 1 (stdout)</span> +<span id="L30" class="LineNr">30 </span> <span class="Comment"># write(stdout, x, 1)</span> +<span id="L31" class="LineNr">31 </span> <span class="Comment"># fd = 1 (stdout)</span> <span id="L32" class="LineNr">32 </span> bb/copy 1/imm32 <span class="Comment"># copy 1 to EBX</span> -<span id="L33" class="LineNr">33 </span> <span class="Comment"># initialize x (location to read from)</span> +<span id="L33" class="LineNr">33 </span> <span class="Comment"># initialize x (location to read from)</span> <span id="L34" class="LineNr">34 </span> 89/copy 3/mod/direct 1/rm32/ECX 5/r32/EBP <span class="Comment"># copy EBP to ECX</span> -<span id="L35" class="LineNr">35 </span> <span class="Comment"># size = 1 character</span> +<span id="L35" class="LineNr">35 </span> <span class="Comment"># size = 1 character</span> <span id="L36" class="LineNr">36 </span> ba/copy 1/imm32 <span class="Comment"># copy 1 to EDX</span> -<span id="L37" class="LineNr">37 </span> <span class="Comment"># write(fd, x, size)</span> -<span id="L38" class="LineNr">38 </span> b8/copy 4/imm32 <span class="Comment"># copy 4 to EAX</span> -<span id="L39" class="LineNr">39 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L37" class="LineNr">37 </span> <span class="Comment"># write(fd, x, size)</span> +<span id="L38" class="LineNr">38 </span> b8/copy 4/imm32/write <span class="Comment"># copy 4 to EAX</span> +<span id="L39" class="LineNr">39 </span> cd/syscall 0x80/imm8 <span id="L40" class="LineNr">40 </span> -<span id="L41" class="LineNr">41 </span> <span class="SalientComment">## exit(EBX)</span> -<span id="L42" class="LineNr">42 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L43" class="LineNr">43 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> +<span id="L41" class="LineNr">41 </span> <span class="Comment"># exit(EBX)</span> +<span id="L42" class="LineNr">42 </span> b8/copy 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L43" class="LineNr">43 </span> cd/syscall 0x80/imm8 <span id="L44" class="LineNr">44 </span> <span id="L45" class="LineNr">45 </span><span class="Comment"># vim:ft=subx:nowrap</span> </pre> diff --git a/html/subx/examples/ex6.subx.html b/html/subx/examples/ex6.subx.html index f633a7c3..77c6293e 100644 --- a/html/subx/examples/ex6.subx.html +++ b/html/subx/examples/ex6.subx.html @@ -65,30 +65,29 @@ if ('onhashchange' in window) { <span id="L10" class="LineNr">10 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L11" class="LineNr">11 </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="L12" class="LineNr">12 </span> -<span id="L13" class="LineNr">13 </span> <span class="SalientComment">## write(stdout, x, 1)</span> -<span id="L14" class="LineNr">14 </span> <span class="Comment"># fd = 1 (stdout)</span> +<span id="L13" class="LineNr">13 </span> <span class="Comment"># write(stdout, x, size)</span> +<span id="L14" class="LineNr">14 </span> <span class="Comment"># fd = 1 (stdout)</span> <span id="L15" class="LineNr">15 </span> bb/copy 1/imm32 <span class="Comment"># copy 1 to EBX</span> -<span id="L16" class="LineNr">16 </span> <span class="Comment"># initialize x (location to write result to)</span> +<span id="L16" class="LineNr">16 </span> <span class="Comment"># initialize x (location to write result to)</span> <span id="L17" class="LineNr">17 </span> b9/copy x/imm32 <span class="Comment"># copy to ECX</span> -<span id="L18" class="LineNr">18 </span> <span class="Comment"># initialize size</span> -<span id="L19" class="LineNr">19 </span> ba/copy size/imm32 <span class="Comment"># copy to EDX</span> -<span id="L20" class="LineNr">20 </span> 8b/copy 0/mod/indirect 2/rm32/EDX 2/r32/EDX <span class="Comment"># copy *EDX to EDX</span> -<span id="L21" class="LineNr">21 </span> <span class="Comment"># write(fd, x, size)</span> -<span id="L22" class="LineNr">22 </span> b8/copy 4/imm32 <span class="Comment"># copy 4 to EAX</span> -<span id="L23" class="LineNr">23 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> -<span id="L24" class="LineNr">24 </span> -<span id="L25" class="LineNr">25 </span> <span class="SalientComment">## exit(EBX)</span> -<span id="L26" class="LineNr">26 </span> b8/copy 1/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L27" class="LineNr">27 </span> cd/syscall 0x80/imm8 <span class="Comment"># int 80h</span> -<span id="L28" class="LineNr">28 </span> -<span id="L29" class="LineNr">29 </span>== data -<span id="L30" class="LineNr">30 </span>size: <span class="Comment"># size of string</span> -<span id="L31" class="LineNr">31 </span> 0e 00 00 00 <span class="Comment"># 14</span> -<span id="L32" class="LineNr">32 </span>x: <span class="Comment"># string to print</span> -<span id="L33" class="LineNr">33 </span> 48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21 0a 00 -<span id="L34" class="LineNr">34 </span><span class="Comment"># h e l l o , ␣ w o r l d ! newline null</span> -<span id="L35" class="LineNr">35 </span> -<span id="L36" class="LineNr">36 </span><span class="Comment"># vim:ft=subx:nowrap</span> +<span id="L18" class="LineNr">18 </span> <span class="Comment"># initialize size</span> +<span id="L19" class="LineNr">19 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 2/r32/EDX size/disp32 <span class="Comment"># copy *size to EDX</span> +<span id="L20" class="LineNr">20 </span> <span class="Comment"># write(fd, x, size)</span> +<span id="L21" class="LineNr">21 </span> b8/copy 4/imm32/write <span class="Comment"># copy 4 to EAX</span> +<span id="L22" class="LineNr">22 </span> cd/syscall 0x80/imm8 +<span id="L23" class="LineNr">23 </span> +<span id="L24" class="LineNr">24 </span> <span class="Comment"># exit(EBX)</span> +<span id="L25" class="LineNr">25 </span> b8/copy 1/imm32/exit <span class="Comment"># copy 1 to EAX</span> +<span id="L26" class="LineNr">26 </span> cd/syscall 0x80/imm8 +<span id="L27" class="LineNr">27 </span> +<span id="L28" class="LineNr">28 </span>== data +<span id="L29" class="LineNr">29 </span>size: <span class="Comment"># size of string</span> +<span id="L30" class="LineNr">30 </span> 0e 00 00 00 <span class="Comment"># 14</span> +<span id="L31" class="LineNr">31 </span>x: <span class="Comment"># string to print</span> +<span id="L32" class="LineNr">32 </span> 48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21 0a 00 +<span id="L33" class="LineNr">33 </span><span class="Comment"># h e l l o , ␣ w o r l d ! newline null</span> +<span id="L34" class="LineNr">34 </span> +<span id="L35" class="LineNr">35 </span><span class="Comment"># vim:ft=subx:nowrap</span> </pre> </body> </html> diff --git a/html/subx/examples/ex7.subx.html b/html/subx/examples/ex7.subx.html index 35ac5418..8a971671 100644 --- a/html/subx/examples/ex7.subx.html +++ b/html/subx/examples/ex7.subx.html @@ -71,90 +71,90 @@ if ('onhashchange' in window) { <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="L18" class="LineNr"> 18 </span> <span class="Comment"># 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="L22" class="LineNr"> 22 </span> cd/syscall 0x80/imm8 <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="L24" class="LineNr"> 24 </span> <span class="Comment"># 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="L29" class="LineNr"> 29 </span> cd/syscall 0x80/imm8 +<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="L34" class="LineNr"> 34 </span> <span class="Comment"># 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="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="L42" class="LineNr"> 42 </span> cd/syscall 0x80/imm8 <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="L44" class="LineNr"> 44 </span> <span class="Comment"># 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="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="L50" class="LineNr"> 50 </span> cd/syscall 0x80/imm8 <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="L52" class="LineNr"> 52 </span> <span class="Comment"># 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="L57" class="LineNr"> 57 </span> cd/syscall 0x80/imm8 +<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="L62" class="LineNr"> 62 </span> <span class="Comment"># 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="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="L70" class="LineNr"> 70 </span> cd/syscall 0x80/imm8 <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="L72" class="LineNr"> 72 </span> <span class="Comment"># 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="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="L78" class="LineNr"> 78 </span> cd/syscall 0x80/imm8 <span id="L79" class="LineNr"> 79 </span> -<span id="L80" class="LineNr"> 80 </span> <span class="SalientComment">## unlink(filename)</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Comment"># 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="L83" class="LineNr"> 83 </span> cd/syscall 0x80/imm8 <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="L85" class="LineNr"> 85 </span> <span class="Comment"># 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="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="L91" class="LineNr"> 91 </span> cd/syscall 0x80/imm8 <span id="L92" class="LineNr"> 92 </span> <span id="L93" class="LineNr"> 93 </span>== data <span id="L94" class="LineNr"> 94 </span>stream: -<span id="L95" class="LineNr"> 95 </span>00 00 00 00 +<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="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="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="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> diff --git a/html/subx/examples/ex8.subx.html b/html/subx/examples/ex8.subx.html index 62c118c6..e091fe9b 100644 --- a/html/subx/examples/ex8.subx.html +++ b/html/subx/examples/ex8.subx.html @@ -19,6 +19,7 @@ a:hover { text-decoration: underline; } .Delimiter { color: #800080; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } +.SalientComment { color: #00ffff; } --> </style> @@ -53,11 +54,11 @@ if ('onhashchange' in window) { </head> <body onload='JumpToLine();'> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="Comment"># Example reading commandline arguments: compute length of first arg.</span> +<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">## Example reading commandline arguments: compute length of first arg.</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span> <span id="L3" class="LineNr"> 3 </span><span class="Comment"># To run:</span> -<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex9.subx ex9</span> -<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex9 abc de fghi</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment"># $ subx translate ex8.subx ex8</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run ex8 abc de fghi</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># Expected result:</span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ echo $?</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># 3 # length of 'abc'</span> @@ -82,7 +83,7 @@ if ('onhashchange' in window) { <span id="L27" class="LineNr">27 </span> <span class="Comment"># push args</span> <span id="L28" class="LineNr">28 </span> 53/push <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> <span class="Delimiter"> . </span> <span class="Comment"># push EBX</span> <span id="L29" class="LineNr">29 </span> <span class="Comment"># call</span> -<span id="L30" class="LineNr">30 </span> e8/call <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> ascii_length/disp32 +<span id="L30" class="LineNr">30 </span> e8/call ascii_length/disp32 <span id="L31" class="LineNr">31 </span> <span class="Comment"># discard args</span> <span id="L32" class="LineNr">32 </span> 5a/pop <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> <span class="Delimiter"> . </span> <span class="Comment"># pop into EDX</span> <span id="L33" class="LineNr">33 </span> <span class="Comment"># clean up after call</span> @@ -92,26 +93,26 @@ if ('onhashchange' in window) { <span id="L37" class="LineNr">37 </span> <span class="Comment"># exit(EAX)</span> <span id="L38" class="LineNr">38 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> <span id="L39" class="LineNr">39 </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="L40" class="LineNr">40 </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="L40" class="LineNr">40 </span> cd/syscall 0x80/imm8 <span id="L41" class="LineNr">41 </span> <span id="L42" class="LineNr">42 </span>ascii_length: <span class="Comment"># (s)</span> <span id="L43" class="LineNr">43 </span> <span class="Comment"># initialize s (EDX)</span> <span id="L44" class="LineNr">44 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 2/r32/EDX 4/disp8 <span class="Comment"># copy *(ESP+4) to EDX</span> <span id="L45" class="LineNr">45 </span> <span class="Comment"># var result = 0 (EAX)</span> -<span id="L46" class="LineNr">46 </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> 0/imm32 <span class="Comment"># copy 1 to EAX</span> -<span id="L47" class="LineNr">47 </span>$al_loop: +<span id="L46" class="LineNr">46 </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> 0/imm32 <span class="Comment"># copy 0 to EAX</span> +<span id="L47" class="LineNr">47 </span>$ascii_length_loop: <span id="L48" class="LineNr">48 </span> <span class="Comment"># var c = *s (ECX)</span> <span id="L49" class="LineNr">49 </span> 8a/copy 0/mod/* 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDX to lower byte of ECX</span> <span id="L50" class="LineNr">50 </span> <span class="Comment"># if c == '\0' break</span> <span id="L51" class="LineNr">51 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare ECX with 0</span> -<span id="L52" class="LineNr">52 </span> 74/jump-if-zero <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> $al_ret/disp8 <span class="Comment"># jump if equal</span> +<span id="L52" class="LineNr">52 </span> 74/jump-if-equal $ascii_length_ret/disp8 <span id="L53" class="LineNr">53 </span> <span class="Comment"># ++s</span> <span id="L54" class="LineNr">54 </span> 81 0/subop/add 3/mod/direct 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># add 1 to EDX</span> <span id="L55" class="LineNr">55 </span> <span class="Comment"># ++result</span> <span id="L56" class="LineNr">56 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># add 1 to EAX</span> <span id="L57" class="LineNr">57 </span> <span class="Comment"># loop</span> -<span id="L58" class="LineNr">58 </span> eb/jump <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> $al_loop/disp8 <span class="Comment"># jump $al_loop</span> -<span id="L59" class="LineNr">59 </span>$al_ret: +<span id="L58" class="LineNr">58 </span> eb/jump $ascii_length_loop/disp8 +<span id="L59" class="LineNr">59 </span>$ascii_length_ret: <span id="L60" class="LineNr">60 </span> <span class="Comment"># return (result in EAX)</span> <span id="L61" class="LineNr">61 </span> c3/return </pre> diff --git a/html/subx/examples/ex9.subx.html b/html/subx/examples/ex9.subx.html new file mode 100644 index 00000000..6665f520 --- /dev/null +++ b/html/subx/examples/ex9.subx.html @@ -0,0 +1,109 @@ +<!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/ex9.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,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal"> 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class="LineNr"> 8 </span><span class="Comment"># Expected result:</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># $ echo $?</span> +<span id="L10" class="LineNr">10 </span><span class="Comment"># 2</span> +<span id="L11" class="LineNr">11 </span><span class="Comment">#</span> +<span id="L12" class="LineNr">12 </span><span class="Comment"># At the start of a SubX program:</span> +<span id="L13" class="LineNr">13 </span><span class="Comment"># argc: *ESP</span> +<span id="L14" class="LineNr">14 </span><span class="Comment"># argv[0]: *(ESP+4)</span> +<span id="L15" class="LineNr">15 </span><span class="Comment"># argv[1]: *(ESP+8)</span> +<span id="L16" class="LineNr">16 </span><span class="Comment"># ...</span> +<span id="L17" class="LineNr">17 </span><span class="Comment"># Locals start from ESP-4 downwards.</span> +<span id="L18" class="LineNr">18 </span> +<span id="L19" class="LineNr">19 </span>== code +<span id="L20" class="LineNr">20 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L21" class="LineNr">21 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L22" class="LineNr">22 </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="L23" class="LineNr">23 </span> <span class="Comment"># s1 = argv[1] (EAX)</span> +<span id="L24" class="LineNr">24 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to EAX</span> +<span id="L25" class="LineNr">25 </span> <span class="Comment"># s2 = argv[2] (EBX)</span> +<span id="L26" class="LineNr">26 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+12) to EBX</span> +<span id="L27" class="LineNr">27 </span> <span class="Comment"># call string_equal(s1, s2)</span> +<span id="L28" class="LineNr">28 </span> <span class="Comment"># push args</span> +<span id="L29" class="LineNr">29 </span> 50/push <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> <span class="Delimiter"> . </span> <span class="Comment"># push EAX</span> +<span id="L30" class="LineNr">30 </span> 53/push <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> <span class="Delimiter"> . </span> <span class="Comment"># push EBX</span> +<span id="L31" class="LineNr">31 </span> <span class="Comment"># call</span> +<span id="L32" class="LineNr">32 </span> e8/call ascii_difference/disp32 +<span id="L33" class="LineNr">33 </span> <span class="Comment"># discard args</span> +<span id="L34" class="LineNr">34 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add 8 to ESP</span> +<span id="L35" class="LineNr">35 </span> <span class="Comment"># exit(EAX)</span> +<span id="L36" class="LineNr">36 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L37" class="LineNr">37 </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="L38" class="LineNr">38 </span> cd/syscall 0x80/imm8 +<span id="L39" class="LineNr">39 </span> +<span id="L40" class="LineNr">40 </span>ascii_difference: <span class="Comment"># (s1, s2) : null-terminated ascii strings</span> +<span id="L41" class="LineNr">41 </span> <span class="Comment"># a = first letter of s1 (ECX)</span> +<span id="L42" class="LineNr">42 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 0/r32/EAX 8/disp8 <span class="Comment"># copy *(ESP+8) to EAX</span> +<span id="L43" class="LineNr">43 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EAX to EAX</span> +<span id="L44" class="LineNr">44 </span> <span class="Comment"># b = first letter of s2 (EDX)</span> +<span id="L45" class="LineNr">45 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 1/r32/ECX 4/disp8 <span class="Comment"># copy *(ESP+4) to ECX</span> +<span id="L46" class="LineNr">46 </span> 8b/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *ECX to ECX</span> +<span id="L47" class="LineNr">47 </span> <span class="Comment"># a-b</span> +<span id="L48" class="LineNr">48 </span> 29/subtract 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># subtract ECX from EAX</span> +<span id="L49" class="LineNr">49 </span> c3/return +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |