diff options
Diffstat (limited to 'html/subx/012indirect_addressing.cc.html')
| -rw-r--r-- | html/subx/012indirect_addressing.cc.html | 75 |
1 files changed, 34 insertions, 41 deletions
diff --git a/html/subx/012indirect_addressing.cc.html b/html/subx/012indirect_addressing.cc.html index 35dd62ab..781b9ad2 100644 --- a/html/subx/012indirect_addressing.cc.html +++ b/html/subx/012indirect_addressing.cc.html @@ -412,53 +412,46 @@ if ('onhashchange' in window) { <span id="L347" class="LineNr">347 </span><span class="Special">% Reg[ESP].u = 0x14;</span> <span id="L348" class="LineNr">348 </span><span class="Comment"># op ModRM SIB displacement immediate</span> <span id="L349" class="LineNr">349 </span> ff <span class="Constant">30</span> <span class="Comment"># push *EAX (reg 0) to stack</span> -<span id="L350" class="LineNr">350 </span><span class="traceContains">+run: push effective address</span> +<span id="L350" class="LineNr">350 </span><span class="traceContains">+run: <a href='011direct_addressing.cc.html#L244'>push</a> effective address</span> <span id="L351" class="LineNr">351 </span><span class="traceContains">+run: effective address is mem at address 0x60 (reg 0)</span> -<span id="L352" class="LineNr">352 </span><span class="traceContains">+run: <a href='010core.cc.html#L11'>ESP</a> is now 0x00000010</span> -<span id="L353" class="LineNr">353 </span><span class="traceContains">+run: <a href='003trace.cc.html#L74'>contents</a> at <a href='010core.cc.html#L11'>ESP</a>: 0x000000af</span> +<span id="L352" class="LineNr">352 </span><span class="traceContains">+run: decrementing <a href='010core.cc.html#L11'>ESP</a> to 0x00000010</span> +<span id="L353" class="LineNr">353 </span><span class="traceContains">+run: pushing value 0x000000af</span> <span id="L354" class="LineNr">354 </span> <span id="L355" class="LineNr">355 </span><span class="Delimiter">:(before "End Op ff Subops")</span> <span id="L356" class="LineNr">356 </span><span class="Normal">case</span> <span class="Constant">6</span>: <span class="Delimiter">{</span> <span id="L357" class="LineNr">357 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push effective address"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> <span id="L358" class="LineNr">358 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* val = <a href='011direct_addressing.cc.html#L26'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L359" class="LineNr">359 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pushing value 0x"</span> << <a href='010core.cc.html#L230'>HEXWORD</a> << *val << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L360" class="LineNr">360 </span> Reg[ESP]<span class="Delimiter">.</span>u -= <span class="Constant">4</span><span class="Delimiter">;</span> -<span id="L361" class="LineNr">361 </span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">))</span> = *val<span class="Delimiter">;</span> -<span id="L362" class="LineNr">362 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"ESP is now 0x"</span> << <a href='010core.cc.html#L230'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L363" class="LineNr">363 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"contents at <a href='010core.cc.html#L11'>ESP</a>: 0x"</span> << <a href='010core.cc.html#L230'>HEXWORD</a> << *<span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">))</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L364" class="LineNr">364 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L365" class="LineNr">365 </span><span class="Delimiter">}</span> -<span id="L366" class="LineNr">366 </span> -<span id="L367" class="LineNr">367 </span><span class="SalientComment">//:: pop</span> -<span id="L368" class="LineNr">368 </span> -<span id="L369" class="LineNr">369 </span><span class="Delimiter">:(scenario pop_mem_at_r32)</span> -<span id="L370" class="LineNr">370 </span><span class="Special">% Reg[0].i = 0x60;</span> -<span id="L371" class="LineNr">371 </span><span class="Special">% Reg[ESP].u = 0x10;</span> -<span id="L372" class="LineNr">372 </span><span class="Special">% SET_WORD_IN_MEM(0x10, 0x00000030);</span> -<span id="L373" class="LineNr">373 </span><span class="Comment"># op ModRM SIB displacement immediate</span> -<span id="L374" class="LineNr">374 </span> <span class="Constant">8f</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># pop stack into *EAX (reg 0)</span> -<span id="L375" class="LineNr">375 </span><span class="traceContains">+run: pop into effective address</span> -<span id="L376" class="LineNr">376 </span><span class="traceContains">+run: effective address is mem at address 0x60 (reg 0)</span> -<span id="L377" class="LineNr">377 </span><span class="traceContains">+run: storing 0x00000030</span> -<span id="L378" class="LineNr">378 </span><span class="traceContains">+run: <a href='010core.cc.html#L11'>ESP</a> is now 0x00000014</span> -<span id="L379" class="LineNr">379 </span> -<span id="L380" class="LineNr">380 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> -<span id="L381" class="LineNr">381 </span><span class="Normal">case</span> <span class="Constant">0x8f</span>: <span class="Delimiter">{</span> <span class="Comment">// pop stack into r/m32</span> -<span id="L382" class="LineNr">382 </span> <span class="Normal">uint8_t</span> modrm = <a href='010core.cc.html#L214'>next</a><span class="Delimiter">();</span> -<span id="L383" class="LineNr">383 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> -<span id="L384" class="LineNr">384 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L385" class="LineNr">385 </span> <span class="Conceal">¦</span> <span class="Normal">case</span> <span class="Constant">0</span>: <span class="Delimiter">{</span> -<span id="L386" class="LineNr">386 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pop into effective address"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L387" class="LineNr">387 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">int32_t</span>* dest = <a href='011direct_addressing.cc.html#L26'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L388" class="LineNr">388 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> *dest = *<span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">));</span> -<span id="L389" class="LineNr">389 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010core.cc.html#L230'>HEXWORD</a> << *dest << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L390" class="LineNr">390 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> Reg[ESP]<span class="Delimiter">.</span>u += <span class="Constant">4</span><span class="Delimiter">;</span> -<span id="L391" class="LineNr">391 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"ESP is now 0x"</span> << <a href='010core.cc.html#L230'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L392" class="LineNr">392 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L393" class="LineNr">393 </span> <span class="Conceal">¦</span> <span class="Delimiter">}</span> -<span id="L394" class="LineNr">394 </span> <span class="Delimiter">}</span> -<span id="L395" class="LineNr">395 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L396" class="LineNr">396 </span><span class="Delimiter">}</span> +<span id="L359" class="LineNr">359 </span> <a href='011direct_addressing.cc.html#L244'>push</a><span class="Delimiter">(</span>*val<span class="Delimiter">);</span> +<span id="L360" class="LineNr">360 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L361" class="LineNr">361 </span><span class="Delimiter">}</span> +<span id="L362" class="LineNr">362 </span> +<span id="L363" class="LineNr">363 </span><span class="SalientComment">//:: pop</span> +<span id="L364" class="LineNr">364 </span> +<span id="L365" class="LineNr">365 </span><span class="Delimiter">:(scenario pop_mem_at_r32)</span> +<span id="L366" class="LineNr">366 </span><span class="Special">% Reg[0].i = 0x60;</span> +<span id="L367" class="LineNr">367 </span><span class="Special">% Reg[ESP].u = 0x10;</span> +<span id="L368" class="LineNr">368 </span><span class="Special">% SET_WORD_IN_MEM(0x10, 0x00000030);</span> +<span id="L369" class="LineNr">369 </span><span class="Comment"># op ModRM SIB displacement immediate</span> +<span id="L370" class="LineNr">370 </span> <span class="Constant">8f</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># pop stack into *EAX (reg 0)</span> +<span id="L371" class="LineNr">371 </span><span class="traceContains">+run: <a href='011direct_addressing.cc.html#L277'>pop</a> into effective address</span> +<span id="L372" class="LineNr">372 </span><span class="traceContains">+run: effective address is mem at address 0x60 (reg 0)</span> +<span id="L373" class="LineNr">373 </span><span class="traceContains">+run: popping value 0x00000030</span> +<span id="L374" class="LineNr">374 </span><span class="traceContains">+run: incrementing <a href='010core.cc.html#L11'>ESP</a> to 0x00000014</span> +<span id="L375" class="LineNr">375 </span> +<span id="L376" class="LineNr">376 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L377" class="LineNr">377 </span><span class="Normal">case</span> <span class="Constant">0x8f</span>: <span class="Delimiter">{</span> <span class="Comment">// pop stack into r/m32</span> +<span id="L378" class="LineNr">378 </span> <span class="Normal">uint8_t</span> modrm = <a href='010core.cc.html#L214'>next</a><span class="Delimiter">();</span> +<span id="L379" class="LineNr">379 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L380" class="LineNr">380 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L381" class="LineNr">381 </span> <span class="Conceal">¦</span> <span class="Normal">case</span> <span class="Constant">0</span>: <span class="Delimiter">{</span> +<span id="L382" class="LineNr">382 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pop into effective address"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> +<span id="L383" class="LineNr">383 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">int32_t</span>* dest = <a href='011direct_addressing.cc.html#L26'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L384" class="LineNr">384 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> *dest = <a href='011direct_addressing.cc.html#L277'>pop</a><span class="Delimiter">();</span> +<span id="L385" class="LineNr">385 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L386" class="LineNr">386 </span> <span class="Conceal">¦</span> <span class="Delimiter">}</span> +<span id="L387" class="LineNr">387 </span> <span class="Delimiter">}</span> +<span id="L388" class="LineNr">388 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L389" class="LineNr">389 </span><span class="Delimiter">}</span> </pre> </body> </html> |