diff options
Diffstat (limited to 'html/subx/050_write.subx.html')
| -rw-r--r-- | html/subx/050_write.subx.html | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/html/subx/050_write.subx.html b/html/subx/050_write.subx.html index 78d9cf0c..e5d0f459 100644 --- a/html/subx/050_write.subx.html +++ b/html/subx/050_write.subx.html @@ -91,18 +91,29 @@ if ('onhashchange' in window) { <span id="L32" class="LineNr">32 </span> <span class="subxS1Comment"># . syscall</span> <span id="L33" class="LineNr">33 </span> b8/copy-to-EAX 4/imm32/write <span id="L34" class="LineNr">34 </span> cd/syscall 0x80/imm8 -<span id="L35" class="LineNr">35 </span><span class="Constant">$_write:end</span>: -<span id="L36" class="LineNr">36 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L37" class="LineNr">37 </span> 5b/pop-to-EBX -<span id="L38" class="LineNr">38 </span> 5a/pop-to-EDX -<span id="L39" class="LineNr">39 </span> 59/pop-to-ECX -<span id="L40" class="LineNr">40 </span> 58/pop-to-EAX -<span id="L41" class="LineNr">41 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L42" class="LineNr">42 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy EBP to ESP</span> -<span id="L43" class="LineNr">43 </span> 5d/pop-to-EBP -<span id="L44" class="LineNr">44 </span> c3/return -<span id="L45" class="LineNr">45 </span> -<span id="L46" class="LineNr">46 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +<span id="L35" class="LineNr">35 </span> <span class="subxComment"># if (EAX < 0) abort</span> +<span id="L36" class="LineNr">36 </span> 3d/compare-EAX-with 0/imm32 +<span id="L37" class="LineNr">37 </span> 0f 8c/jump-if-lesser $_write:abort/disp32 +<span id="L38" class="LineNr">38 </span><span class="Constant">$_write:end</span>: +<span id="L39" class="LineNr">39 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L40" class="LineNr">40 </span> 5b/pop-to-EBX +<span id="L41" class="LineNr">41 </span> 5a/pop-to-EDX +<span id="L42" class="LineNr">42 </span> 59/pop-to-ECX +<span id="L43" class="LineNr">43 </span> 58/pop-to-EAX +<span id="L44" class="LineNr">44 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L45" class="LineNr">45 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy EBP to ESP</span> +<span id="L46" class="LineNr">46 </span> 5d/pop-to-EBP +<span id="L47" class="LineNr">47 </span> c3/return +<span id="L48" class="LineNr">48 </span> +<span id="L49" class="LineNr">49 </span><span class="Constant">$_write:abort</span>: +<span id="L50" class="LineNr">50 </span> <span class="subxComment"># can't write a message here for risk of an infinite loop, so we'll use a special exit code instead</span> +<span id="L51" class="LineNr">51 </span> <span class="subxS1Comment"># . syscall(exit, 255)</span> +<span id="L52" class="LineNr">52 </span> bb/copy-to-EBX 0xff/imm32 +<span id="L53" class="LineNr">53 </span> b8/copy-to-EAX 1/imm32/exit +<span id="L54" class="LineNr">54 </span> cd/syscall 0x80/imm8 +<span id="L55" class="LineNr">55 </span> <span class="subxComment"># never gets here</span> +<span id="L56" class="LineNr">56 </span> +<span id="L57" class="LineNr">57 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> </pre> </body> </html> |