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Diffstat (limited to 'html/subx/examples/ex8.subx.html')
| -rw-r--r-- | html/subx/examples/ex8.subx.html | 89 |
1 files changed, 47 insertions, 42 deletions
diff --git a/html/subx/examples/ex8.subx.html b/html/subx/examples/ex8.subx.html index 192670b5..ed29f0b4 100644 --- a/html/subx/examples/ex8.subx.html +++ b/html/subx/examples/ex8.subx.html @@ -11,12 +11,17 @@ <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; } -.subxComment { color: #005fff; } -.LineNr { color: #444444; } +body { font-size:12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +.subxS2Comment a { color:inherit; } +.subxS1Comment a { color:inherit; } +.subxComment a { color:inherit; } +.subxH2Comment a { color:inherit; } +.subxH1Comment a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color:#16bfff; } +.subxS2Comment { color:#4466ff; } +.LineNr { color:#444444; } +.subxS1Comment { color:#2d8cff; } .CommentedCode { color: #6c6c6c; } --> </style> @@ -52,7 +57,7 @@ if ('onhashchange' in window) { </head> <body onload='JumpToLine();'> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="subxComment">## Example reading commandline arguments: compute length of first arg.</span> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Example reading commandline arguments: compute length of first arg.</span> <span id="L2" class="LineNr"> 2 </span><span class="subxComment">#</span> <span id="L3" class="LineNr"> 3 </span><span class="subxComment"># To run (from the subx directory):</span> <span id="L4" class="LineNr"> 4 </span><span class="subxComment"># $ subx translate examples/ex8.subx -o examples/ex8</span> @@ -69,47 +74,47 @@ if ('onhashchange' in window) { <span id="L15" class="LineNr">15 </span><span class="subxComment"># Locals start from ESP-4 downwards.</span> <span id="L16" class="LineNr">16 </span> <span id="L17" class="LineNr">17 </span>== code -<span id="L18" class="LineNr">18 </span><span class="subxComment"># instruction effective address operand displacement immediate</span> -<span id="L19" class="LineNr">19 </span><span class="subxComment"># op subop mod rm32 base index scale r32</span> -<span id="L20" class="LineNr">20 </span><span class="subxComment"># 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="L18" class="LineNr">18 </span><span class="subxComment"># instruction effective address register displacement immediate</span> +<span id="L19" class="LineNr">19 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> +<span id="L20" class="LineNr">20 </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="L21" class="LineNr">21 </span> -<span id="L22" class="LineNr">22 </span> <span class="subxComment"># prolog</span> -<span id="L23" class="LineNr">23 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> -<span id="L24" class="LineNr">24 </span> <span class="subxComment"># call ascii-length(argv[1])</span> -<span id="L25" class="LineNr">25 </span> <span class="subxComment"># push args</span> -<span id="L26" class="LineNr">26 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> -<span id="L27" class="LineNr">27 </span> <span class="subxComment"># call</span> -<span id="L28" class="LineNr">28 </span> e8/call ascii-length/disp32 -<span id="L29" class="LineNr">29 </span> <span class="subxComment"># discard args</span> -<span id="L30" class="LineNr">30 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> +<span id="L22" class="LineNr">22 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L23" class="LineNr">23 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/r32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L24" class="LineNr">24 </span> <span class="subxComment"># EAX = ascii-length(argv[1])</span> +<span id="L25" class="LineNr">25 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L26" class="LineNr">26 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x8/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># push *(EBP+8)</span> +<span id="L27" class="LineNr">27 </span> <span class="subxS2Comment"># . . call</span> +<span id="L28" class="LineNr">28 </span> e8/call ascii-length/disp32 +<span id="L29" class="LineNr">29 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L30" class="LineNr">30 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> <span id="L31" class="LineNr">31 </span> -<span id="L32" class="LineNr">32 </span> <span class="subxComment"># exit(EAX)</span> -<span id="L33" class="LineNr">33 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/r32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EAX to EBX</span> -<span id="L34" class="LineNr">34 </span> b8/copy-to-EAX 1/imm32/exit -<span id="L35" class="LineNr">35 </span> cd/syscall 0x80/imm8 +<span id="L32" class="LineNr">32 </span> <span class="subxComment"># exit(EAX)</span> +<span id="L33" class="LineNr">33 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/r32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy EAX to EBX</span> +<span id="L34" class="LineNr">34 </span> b8/copy-to-EAX 1/imm32/exit +<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>ascii-length: <span class="subxComment"># (s)</span> -<span id="L38" class="LineNr">38 </span> <span class="subxComment"># initialize s (EDX)</span> -<span id="L39" class="LineNr">39 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 2/r32/EDX 4/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(ESP+4) to EDX</span> -<span id="L40" class="LineNr">40 </span> <span class="subxComment"># var result = 0 (EAX)</span> -<span id="L41" class="LineNr">41 </span> b8/copy-to-EAX 0/imm32 +<span id="L37" class="LineNr">37 </span>ascii-length: <span class="subxComment"># s : (address array byte) -> n/EAX</span> +<span id="L38" class="LineNr">38 </span> <span class="subxComment"># EDX = s</span> +<span id="L39" class="LineNr">39 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="CommentedCode"> . </span> 2/r32/EDX 4/disp8 <span class="CommentedCode"> . </span> <span class="subxComment"># copy *(ESP+4) to EDX</span> +<span id="L40" class="LineNr">40 </span> <span class="subxComment"># var result/EAX = 0</span> +<span id="L41" class="LineNr">41 </span> b8/copy-to-EAX 0/imm32 <span id="L42" class="LineNr">42 </span>$ascii-length-loop: -<span id="L43" class="LineNr">43 </span> <span class="subxComment"># var c = *s (ECX)</span> -<span id="L44" class="LineNr">44 </span> 8a/copy 0/mod/* 2/rm32/EDX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy byte at *EDX to lower byte of ECX</span> -<span id="L45" class="LineNr">45 </span> <span class="subxComment"># if c == '\0' break</span> -<span id="L46" class="LineNr">46 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/imm32 <span class="subxComment"># compare ECX</span> -<span id="L47" class="LineNr">47 </span> 74/jump-if-equal $ascii-length-ret/disp8 -<span id="L48" class="LineNr">48 </span> <span class="subxComment"># ++s</span> -<span id="L49" class="LineNr">49 </span> 81 0/subop/add 3/mod/direct 2/rm32/EDX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 1/imm32 <span class="subxComment"># add to EDX</span> -<span id="L50" class="LineNr">50 </span> <span class="subxComment"># ++result</span> -<span id="L51" class="LineNr">51 </span> 40/inc-EAX -<span id="L52" class="LineNr">52 </span> <span class="subxComment"># loop</span> -<span id="L53" class="LineNr">53 </span> eb/jump $ascii-length-loop/disp8 +<span id="L43" class="LineNr">43 </span> <span class="subxComment"># var c/ECX = *s</span> +<span id="L44" class="LineNr">44 </span> 8a/copy 0/mod/* 2/rm32/EDX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 1/r32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="subxComment"># copy byte at *EDX to lower byte of ECX</span> +<span id="L45" class="LineNr">45 </span> <span class="subxComment"># if c == '\0' break</span> +<span id="L46" class="LineNr">46 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0/imm32 <span class="subxComment"># compare ECX</span> +<span id="L47" class="LineNr">47 </span> 74/jump-if-equal $ascii-length-ret/disp8 +<span id="L48" class="LineNr">48 </span> <span class="subxComment"># ++s</span> +<span id="L49" class="LineNr">49 </span> 81 0/subop/add 3/mod/direct 2/rm32/EDX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 1/imm32 <span class="subxComment"># add to EDX</span> +<span id="L50" class="LineNr">50 </span> <span class="subxComment"># ++result</span> +<span id="L51" class="LineNr">51 </span> 40/inc-EAX +<span id="L52" class="LineNr">52 </span> <span class="subxComment"># loop</span> +<span id="L53" class="LineNr">53 </span> eb/jump $ascii-length-loop/disp8 <span id="L54" class="LineNr">54 </span>$ascii-length-ret: -<span id="L55" class="LineNr">55 </span> <span class="subxComment"># return (result in EAX)</span> -<span id="L56" class="LineNr">56 </span> c3/return +<span id="L55" class="LineNr">55 </span> <span class="subxComment"># return EAX</span> +<span id="L56" class="LineNr">56 </span> c3/return <span id="L57" class="LineNr">57 </span> -<span id="L58" class="LineNr">58 </span><span class="subxComment"># vim:nowrap:textwidth=0</span> +<span id="L58" class="LineNr">58 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> </pre> </body> </html> |