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author | Kartik Agaram <vc@akkartik.com> | 2020-09-11 00:59:56 -0700 |
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committer | Kartik Agaram <vc@akkartik.com> | 2020-09-11 00:59:56 -0700 |
commit | 91a5f3e10300fd84db26690095329592de0942d7 (patch) | |
tree | 892f8d2f339f834ff6a8269e1fe098750c99090d /html/302stack_allocate.subx.html | |
parent | 3a4be20aba860bb62db3271b8e157bcc807514b0 (diff) | |
download | mu-91a5f3e10300fd84db26690095329592de0942d7.tar.gz |
6774
Diffstat (limited to 'html/302stack_allocate.subx.html')
-rw-r--r-- | html/302stack_allocate.subx.html | 47 |
1 files changed, 23 insertions, 24 deletions
diff --git a/html/302stack_allocate.subx.html b/html/302stack_allocate.subx.html index 550952fc..1029ffb0 100644 --- a/html/302stack_allocate.subx.html +++ b/html/302stack_allocate.subx.html @@ -90,33 +90,32 @@ if ('onhashchange' in window) { <span id="L33" class="LineNr">33 </span><span class="subxComment"># n must be positive</span> <span id="L34" class="LineNr">34 </span><span class="subxFunction">push-n-zero-bytes</span>: <span class="subxComment"># n: int</span> <span id="L35" class="LineNr">35 </span><span class="Constant">$push-n-zero-bytes:prologue</span>: -<span id="L36" class="LineNr">36 </span> 89/<- *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L59'>Push-n-zero-bytes-ebp</a></span> 5/r32/ebp <span class="subxComment"># spill ebp without affecting stack</span> +<span id="L36" class="LineNr">36 </span> 89/<- *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L56'>Push-n-zero-bytes-ebp</a></span> 5/r32/ebp <span class="subxComment"># spill ebp without affecting stack</span> <span id="L37" class="LineNr">37 </span> 89/<- %ebp 4/r32/esp <span id="L38" class="LineNr">38 </span><span class="Constant">$push-n-zero-bytes:copy-ra</span>: <span id="L39" class="LineNr">39 </span> <span class="subxComment"># -- esp = ebp</span> -<span id="L40" class="LineNr">40 </span> 50/push-eax -<span id="L41" class="LineNr">41 </span> <span class="subxComment"># -- esp+8 = ebp+4</span> -<span id="L42" class="LineNr">42 </span> <span class="subxComment"># -- esp+4 = ebp</span> -<span id="L43" class="LineNr">43 </span> 8b/-> *(esp+4) 0/r32/eax -<span id="L44" class="LineNr">44 </span> 2b/subtract *(ebp+4) 4/r32/esp -<span id="L45" class="LineNr">45 </span> <span class="subxComment"># -- esp+4+n = ebp</span> -<span id="L46" class="LineNr">46 </span> 89/<- *(esp+4) 0/r32/eax -<span id="L47" class="LineNr">47 </span> 58/pop-to-eax -<span id="L48" class="LineNr">48 </span> <span class="subxComment"># -- esp+n = ebp</span> -<span id="L49" class="LineNr">49 </span><span class="Constant">$push-n-zero-bytes:bulk-cleaning</span>: -<span id="L50" class="LineNr">50 </span> 89/<- *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L61'>Push-n-zero-bytes-esp</a></span> 4/r32/esp -<span id="L51" class="LineNr">51 </span> 81 0/subop/add *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L61'>Push-n-zero-bytes-esp</a></span> 4/imm32 -<span id="L52" class="LineNr">52 </span> 81 0/subop/add *(ebp+4) 4/imm32 -<span id="L53" class="LineNr">53 </span> (<a href='120allocate.subx.html#L877'>zero-out</a> *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L61'>Push-n-zero-bytes-esp</a></span> *(ebp+4)) <span class="subxComment"># n+4</span> -<span id="L54" class="LineNr">54 </span><span class="Constant">$push-n-zero-bytes:epilogue</span>: -<span id="L55" class="LineNr">55 </span> 8b/-> *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L59'>Push-n-zero-bytes-ebp</a></span> 5/r32/ebp <span class="subxComment"># restore spill</span> -<span id="L56" class="LineNr">56 </span> c3/return -<span id="L57" class="LineNr">57 </span> -<span id="L58" class="LineNr">58 </span>== data -<span id="L59" class="LineNr">59 </span><span class="SpecialChar">Push-n-zero-bytes-ebp</span>: <span class="subxComment"># (addr int)</span> -<span id="L60" class="LineNr">60 </span> 0/imm32 -<span id="L61" class="LineNr">61 </span><span class="SpecialChar">Push-n-zero-bytes-esp</span>: <span class="subxComment"># (addr int)</span> -<span id="L62" class="LineNr">62 </span> 0/imm32 +<span id="L40" class="LineNr">40 </span> 89/<- *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L60'>Push-n-zero-bytes-eax</a></span> 0/r32/eax +<span id="L41" class="LineNr">41 </span> 8b/-> *esp 0/r32/eax +<span id="L42" class="LineNr">42 </span> 2b/subtract *(ebp+4) 4/r32/esp +<span id="L43" class="LineNr">43 </span> <span class="subxComment"># -- esp+n = ebp</span> +<span id="L44" class="LineNr">44 </span> 89/<- *esp 0/r32/eax +<span id="L45" class="LineNr">45 </span> 8b/-> *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L60'>Push-n-zero-bytes-eax</a></span> 0/r32/eax +<span id="L46" class="LineNr">46 </span><span class="Constant">$push-n-zero-bytes:bulk-cleaning</span>: +<span id="L47" class="LineNr">47 </span> 89/<- *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L58'>Push-n-zero-bytes-esp</a></span> 4/r32/esp +<span id="L48" class="LineNr">48 </span> 81 0/subop/add *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L58'>Push-n-zero-bytes-esp</a></span> 4/imm32 +<span id="L49" class="LineNr">49 </span> 81 0/subop/add *(ebp+4) 4/imm32 +<span id="L50" class="LineNr">50 </span> (<a href='120allocate.subx.html#L877'>zero-out</a> *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L58'>Push-n-zero-bytes-esp</a></span> *(ebp+4)) <span class="subxComment"># n+4</span> +<span id="L51" class="LineNr">51 </span><span class="Constant">$push-n-zero-bytes:epilogue</span>: +<span id="L52" class="LineNr">52 </span> 8b/-> *<span class="SpecialChar"><a href='302stack_allocate.subx.html#L56'>Push-n-zero-bytes-ebp</a></span> 5/r32/ebp <span class="subxComment"># restore spill</span> +<span id="L53" class="LineNr">53 </span> c3/return +<span id="L54" class="LineNr">54 </span> +<span id="L55" class="LineNr">55 </span>== data +<span id="L56" class="LineNr">56 </span><span class="SpecialChar">Push-n-zero-bytes-ebp</span>: <span class="subxComment"># (addr int)</span> +<span id="L57" class="LineNr">57 </span> 0/imm32 +<span id="L58" class="LineNr">58 </span><span class="SpecialChar">Push-n-zero-bytes-esp</span>: <span class="subxComment"># (addr int)</span> +<span id="L59" class="LineNr">59 </span> 0/imm32 +<span id="L60" class="LineNr">60 </span><span class="SpecialChar">Push-n-zero-bytes-eax</span>: +<span id="L61" class="LineNr">61 </span> 0/imm32 </pre> </body> </html> |