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| author | Kartik Agaram <vc@akkartik.com> | 2018-11-30 16:54:01 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-11-30 16:54:01 -0800 |
| commit | 14a380525ed2df295463b1906b718cb26871df3b (patch) | |
| tree | a14422794d91a6fd4d132a12ffa7c3d72708eced /html/subx/examples/ex12.subx.html | |
| parent | 9d27e966b5e9bf1bd3da48f49d7e133d112a2bbe (diff) | |
| download | mu-14a380525ed2df295463b1906b718cb26871df3b.tar.gz | |
4809 - subx: html with 5 colors for comments
Diffstat (limited to 'html/subx/examples/ex12.subx.html')
| -rw-r--r-- | html/subx/examples/ex12.subx.html | 77 |
1 files changed, 41 insertions, 36 deletions
diff --git a/html/subx/examples/ex12.subx.html b/html/subx/examples/ex12.subx.html index daa343eb..92a98277 100644 --- a/html/subx/examples/ex12.subx.html +++ b/html/subx/examples/ex12.subx.html @@ -11,15 +11,20 @@ <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; } +.SpecialChar { color: #ff0000; } .CommentedCode { color: #6c6c6c; } -.Special { color: #c00000; } -.subxH2Comment { color: #00afff; } +.subxH1Comment { color:#00ffff; } --> </style> @@ -54,7 +59,7 @@ if ('onhashchange' in window) { </head> <body onload='JumpToLine();'> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="subxComment">## example showing mmap syscall</span> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Example showing mmap syscall.</span> <span id="L2" class="LineNr"> 2 </span><span class="subxComment"># Create a new segment using mmap, save the address, write to it.</span> <span id="L3" class="LineNr"> 3 </span><span class="subxComment">#</span> <span id="L4" class="LineNr"> 4 </span><span class="subxComment"># To run (from the subx directory):</span> @@ -63,41 +68,41 @@ if ('onhashchange' in window) { <span id="L7" class="LineNr"> 7 </span><span class="subxComment"># You shouldn't get a segmentation fault.</span> <span id="L8" class="LineNr"> 8 </span> <span id="L9" class="LineNr"> 9 </span>== code -<span id="L10" class="LineNr">10 </span><span class="subxComment"># instruction effective address operand displacement immediate</span> -<span id="L11" class="LineNr">11 </span><span class="subxComment"># op subop mod rm32 base index scale r32</span> -<span id="L12" class="LineNr">12 </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="L10" class="LineNr">10 </span><span class="subxComment"># instruction effective address register displacement immediate</span> +<span id="L11" class="LineNr">11 </span><span class="subxS1Comment"># . op subop mod rm32 base index scale r32</span> +<span id="L12" class="LineNr">12 </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="L13" class="LineNr">13 </span> -<span id="L14" class="LineNr">14 </span> <span class="subxComment"># syscall(mmap, 0x1000)</span> -<span id="L15" class="LineNr">15 </span> bb/copy-to-EBX <span class="Special">Mmap-new-segment</span>/imm32 -<span id="L16" class="LineNr">16 </span> b8/copy-to-EAX 0x5a/imm32/mmap -<span id="L17" class="LineNr">17 </span> cd/syscall 0x80/imm8 +<span id="L14" class="LineNr">14 </span> <span class="subxComment"># syscall(mmap, 0x1000)</span> +<span id="L15" class="LineNr">15 </span> bb/copy-to-EBX <span class="SpecialChar"> Mmap-new-segment</span>/imm32 +<span id="L16" class="LineNr">16 </span> b8/copy-to-EAX 0x5a/imm32/mmap +<span id="L17" class="LineNr">17 </span> cd/syscall 0x80/imm8 <span id="L18" class="LineNr">18 </span> -<span id="L19" class="LineNr">19 </span> <span class="subxComment"># store to *EAX</span> -<span id="L20" class="LineNr">20 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x34/imm32 <span class="subxComment"># copy to *EAX</span> +<span id="L19" class="LineNr">19 </span> <span class="subxComment"># write to *EAX to check that we have access to the newly-allocated segment</span> +<span id="L20" class="LineNr">20 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> <span class="CommentedCode"> . </span> 0x34/imm32 <span class="subxComment"># copy to *EAX</span> <span id="L21" class="LineNr">21 </span> -<span id="L22" class="LineNr">22 </span> <span class="subxComment"># syscall(exit, EAX)</span> -<span id="L23" class="LineNr">23 </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="L24" class="LineNr">24 </span> b8/copy-to-EAX 1/imm32/exit -<span id="L25" class="LineNr">25 </span> cd/syscall 0x80/imm8 +<span id="L22" class="LineNr">22 </span> <span class="subxComment"># syscall(exit, EAX)</span> +<span id="L23" class="LineNr">23 </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="L24" class="LineNr">24 </span> b8/copy-to-EAX 1/imm32/exit +<span id="L25" class="LineNr">25 </span> cd/syscall 0x80/imm8 <span id="L26" class="LineNr">26 </span> <span id="L27" class="LineNr">27 </span>== data <span id="L28" class="LineNr">28 </span> <span id="L29" class="LineNr">29 </span><span class="subxComment"># various constants used here were found in the Linux sources (search for file mman-common.h)</span> -<span id="L30" class="LineNr">30 </span><span class="Special">Mmap-new-segment</span>: <span class="subxComment"># type mmap_arg_struct</span> -<span id="L31" class="LineNr">31 </span> <span class="subxComment"># addr</span> -<span id="L32" class="LineNr">32 </span> 00 00 00 00 <span class="subxComment"># null</span> -<span id="L33" class="LineNr">33 </span> <span class="subxComment"># len</span> -<span id="L34" class="LineNr">34 </span> 00 01 00 00 <span class="subxComment"># 0x1000</span> -<span id="L35" class="LineNr">35 </span> <span class="subxComment"># protection flags</span> -<span id="L36" class="LineNr">36 </span> 03 00 00 00 <span class="subxComment"># PROT_READ | PROT_WRITE</span> -<span id="L37" class="LineNr">37 </span> <span class="subxComment"># sharing flags</span> -<span id="L38" class="LineNr">38 </span> 22 00 00 00 <span class="subxComment"># MAP_PRIVATE | MAP_ANONYMOUS</span> -<span id="L39" class="LineNr">39 </span> <span class="subxComment"># fd</span> -<span id="L40" class="LineNr">40 </span> ff ff ff ff <span class="subxH2Comment"># -1 since MAP_ANONYMOUS is specified</span> -<span id="L41" class="LineNr">41 </span> <span class="subxComment"># offset</span> -<span id="L42" class="LineNr">42 </span> 00 00 00 00 <span class="subxComment"># 0 since MAP_ANONYMOUS is specified</span> +<span id="L30" class="LineNr">30 </span><span class="SpecialChar">Mmap-new-segment</span>: <span class="subxComment"># type mmap_arg_struct</span> +<span id="L31" class="LineNr">31 </span> <span class="subxComment"># addr</span> +<span id="L32" class="LineNr">32 </span> 00 00 00 00 <span class="subxComment"># null</span> +<span id="L33" class="LineNr">33 </span> <span class="subxComment"># len</span> +<span id="L34" class="LineNr">34 </span> 00 01 00 00 <span class="subxComment"># 0x1000</span> +<span id="L35" class="LineNr">35 </span> <span class="subxComment"># protection flags</span> +<span id="L36" class="LineNr">36 </span> 03 00 00 00 <span class="subxComment"># PROT_READ | PROT_WRITE</span> +<span id="L37" class="LineNr">37 </span> <span class="subxComment"># sharing flags</span> +<span id="L38" class="LineNr">38 </span> 22 00 00 00 <span class="subxComment"># MAP_PRIVATE | MAP_ANONYMOUS</span> +<span id="L39" class="LineNr">39 </span> <span class="subxComment"># fd</span> +<span id="L40" class="LineNr">40 </span> ff ff ff ff <span class="subxH1Comment"># -1 since MAP_ANONYMOUS is specified</span> +<span id="L41" class="LineNr">41 </span> <span class="subxComment"># offset</span> +<span id="L42" class="LineNr">42 </span> 00 00 00 00 <span class="subxComment"># 0 since MAP_ANONYMOUS is specified</span> <span id="L43" class="LineNr">43 </span> -<span id="L44" class="LineNr">44 </span><span class="subxComment"># vim:nowrap:textwidth=0</span> +<span id="L44" class="LineNr">44 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> </pre> </body> </html> |