Kartik K. Agaram
parent
9ecbcc552e
commit
099ed980c4
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@ -284,7 +284,7 @@ if ('onhashchange' in window) {
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<span id="L219" class="LineNr">219 </span>
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<span id="L220" class="LineNr">220 </span><span class="Delimiter">:(scenario push_r32)</span>
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<span id="L221" class="LineNr">221 </span><span class="Special">% Reg[ESP].u = 0x64;</span>
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<span id="L222" class="LineNr">222 </span><span class="Special">% Reg[EBX].i = 10;</span>
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<span id="L222" class="LineNr">222 </span><span class="Special">% Reg[EBX].i = 0x0000000a;</span>
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<span id="L223" class="LineNr">223 </span><span class="Comment"># op ModRM SIB displacement immediate</span>
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<span id="L224" class="LineNr">224 </span> <span class="Constant">53</span> <span class="Comment"># push EBX (reg 3) to stack</span>
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<span id="L225" class="LineNr">225 </span><span class="traceContains">+run: push <a href='010core.cc.html#L17'>reg</a> 3</span>
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@ -311,6 +311,35 @@ if ('onhashchange' in window) {
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<span id="L246" class="LineNr">246 </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>
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<span id="L247" class="LineNr">247 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
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<span id="L248" class="LineNr">248 </span><span class="Delimiter">}</span>
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<span id="L249" class="LineNr">249 </span>
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<span id="L250" class="LineNr">250 </span><span class="SalientComment">//:: pop</span>
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<span id="L251" class="LineNr">251 </span>
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<span id="L252" class="LineNr">252 </span><span class="Delimiter">:(scenario pop_r32)</span>
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<span id="L253" class="LineNr">253 </span><span class="Special">% Reg[ESP].u = 0x60;</span>
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<span id="L254" class="LineNr">254 </span><span class="Special">% SET_WORD_IN_MEM(0x60, 0x0000000a);</span>
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<span id="L255" class="LineNr">255 </span><span class="Comment"># op ModRM SIB displacement immediate</span>
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<span id="L256" class="LineNr">256 </span> 5b <span class="Comment"># pop stack to EBX (reg 3)</span>
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<span id="L257" class="LineNr">257 </span><span class="traceContains">+run: pop into <a href='010core.cc.html#L17'>reg</a> 3</span>
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<span id="L258" class="LineNr">258 </span><span class="traceContains">+run: popping value 0x0000000a</span>
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<span id="L259" class="LineNr">259 </span><span class="traceContains">+run: <a href='010core.cc.html#L11'>ESP</a> is now 0x00000064</span>
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<span id="L260" class="LineNr">260 </span>
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<span id="L261" class="LineNr">261 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span>
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<span id="L262" class="LineNr">262 </span><span class="Normal">case</span> <span class="Constant">0x58</span>:
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<span id="L263" class="LineNr">263 </span><span class="Normal">case</span> <span class="Constant">0x59</span>:
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<span id="L264" class="LineNr">264 </span><span class="Normal">case</span> <span class="Constant">0x5a</span>:
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<span id="L265" class="LineNr">265 </span><span class="Normal">case</span> <span class="Constant">0x5b</span>:
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<span id="L266" class="LineNr">266 </span><span class="Normal">case</span> <span class="Constant">0x5c</span>:
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<span id="L267" class="LineNr">267 </span><span class="Normal">case</span> <span class="Constant">0x5d</span>:
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<span id="L268" class="LineNr">268 </span><span class="Normal">case</span> <span class="Constant">0x5e</span>:
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<span id="L269" class="LineNr">269 </span><span class="Normal">case</span> <span class="Constant">0x5f</span>: <span class="Delimiter">{</span> <span class="Comment">// pop stack into r32</span>
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<span id="L270" class="LineNr">270 </span> <span class="Normal">uint8_t</span> <a href='010core.cc.html#L17'>reg</a> = op & <span class="Constant">0x7</span><span class="Delimiter">;</span>
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<span id="L271" class="LineNr">271 </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 <a href='010core.cc.html#L17'>reg</a> "</span> << <a href='010core.cc.html#L232'>NUM</a><span class="Delimiter">(</span><a href='010core.cc.html#L17'>reg</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span>
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<span id="L272" class="LineNr">272 </span> Reg[reg]<span class="Delimiter">.</span>u = *<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>
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<span id="L273" class="LineNr">273 </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">"popping value 0x"</span> << <a href='010core.cc.html#L230'>HEXWORD</a> << Reg[reg]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span>
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<span id="L274" class="LineNr">274 </span> Reg[ESP]<span class="Delimiter">.</span>u += <span class="Constant">4</span><span class="Delimiter">;</span>
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<span id="L275" class="LineNr">275 </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>
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<span id="L276" class="LineNr">276 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
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<span id="L277" class="LineNr">277 </span><span class="Delimiter">}</span>
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</pre>
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</body>
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</html>
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@ -429,6 +429,36 @@ if ('onhashchange' in window) {
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<span id="L364" class="LineNr">364 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
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<span id="L365" class="LineNr">365 </span><span class="Delimiter">}</span>
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<span id="L366" class="LineNr">366 </span>
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<span id="L367" class="LineNr">367 </span><span class="SalientComment">//:: pop</span>
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<span id="L368" class="LineNr">368 </span>
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<span id="L369" class="LineNr">369 </span><span class="Delimiter">:(scenario pop_mem_at_r32)</span>
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<span id="L370" class="LineNr">370 </span><span class="Special">% Reg[0].i = 0x60;</span>
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<span id="L371" class="LineNr">371 </span><span class="Special">% Reg[ESP].u = 0x10;</span>
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<span id="L372" class="LineNr">372 </span><span class="Special">% SET_WORD_IN_MEM(0x10, 0x00000030);</span>
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<span id="L373" class="LineNr">373 </span><span class="Comment"># op ModRM SIB displacement immediate</span>
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<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>
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<span id="L375" class="LineNr">375 </span><span class="traceContains">+run: pop into effective address</span>
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<span id="L376" class="LineNr">376 </span><span class="traceContains">+run: effective address is mem at address 0x60 (reg 0)</span>
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<span id="L377" class="LineNr">377 </span><span class="traceContains">+run: storing 0x00000030</span>
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<span id="L378" class="LineNr">378 </span><span class="traceContains">+run: <a href='010core.cc.html#L11'>ESP</a> is now 0x00000014</span>
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<span id="L379" class="LineNr">379 </span>
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<span id="L380" class="LineNr">380 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<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>
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<span id="L392" class="LineNr">392 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
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<span id="L393" class="LineNr">393 </span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
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<span id="L394" class="LineNr">394 </span> <span class="Delimiter">}</span>
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<span id="L395" class="LineNr">395 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
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<span id="L396" class="LineNr">396 </span><span class="Delimiter">}</span>
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</pre>
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</body>
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</html>
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@ -219,7 +219,7 @@ case 0x89: { // copy r32 to r/m32
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:(scenario push_r32)
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% Reg[ESP].u = 0x64;
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% Reg[EBX].i = 10;
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% Reg[EBX].i = 0x0000000a;
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# op ModRM SIB displacement immediate
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53 # push EBX (reg 3) to stack
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+run: push reg 3
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@ -246,3 +246,32 @@ case 0x57: { // push r32 to stack
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trace(2, "run") << "contents at ESP: 0x" << HEXWORD << *reinterpret_cast<uint32_t*>(&Mem.at(Reg[ESP].u)) << end();
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break;
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}
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//:: pop
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:(scenario pop_r32)
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% Reg[ESP].u = 0x60;
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% SET_WORD_IN_MEM(0x60, 0x0000000a);
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# op ModRM SIB displacement immediate
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5b # pop stack to EBX (reg 3)
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+run: pop into reg 3
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+run: popping value 0x0000000a
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+run: ESP is now 0x00000064
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:(before "End Single-Byte Opcodes")
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case 0x58:
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case 0x59:
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case 0x5a:
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case 0x5b:
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case 0x5c:
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case 0x5d:
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case 0x5e:
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case 0x5f: { // pop stack into r32
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uint8_t reg = op & 0x7;
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trace(2, "run") << "pop into reg " << NUM(reg) << end();
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Reg[reg].u = *reinterpret_cast<uint32_t*>(&Mem.at(Reg[ESP].u));
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trace(2, "run") << "popping value 0x" << HEXWORD << Reg[reg].u << end();
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Reg[ESP].u += 4;
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trace(2, "run") << "ESP is now 0x" << HEXWORD << Reg[ESP].u << end();
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break;
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}
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@ -364,3 +364,33 @@ case 6: {
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break;
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}
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//:: pop
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:(scenario pop_mem_at_r32)
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% Reg[0].i = 0x60;
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% Reg[ESP].u = 0x10;
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% SET_WORD_IN_MEM(0x10, 0x00000030);
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# op ModRM SIB displacement immediate
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8f 00 # pop stack into *EAX (reg 0)
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+run: pop into effective address
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+run: effective address is mem at address 0x60 (reg 0)
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+run: storing 0x00000030
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+run: ESP is now 0x00000014
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:(before "End Single-Byte Opcodes")
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case 0x8f: { // pop stack into r/m32
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uint8_t modrm = next();
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uint8_t subop = (modrm>>3)&0x7;
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switch (subop) {
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case 0: {
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trace(2, "run") << "pop into effective address" << end();
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int32_t* dest = effective_address(modrm);
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*dest = *reinterpret_cast<uint32_t*>(&Mem.at(Reg[ESP].u));
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trace(2, "run") << "storing 0x" << HEXWORD << *dest << end();
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Reg[ESP].u += 4;
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trace(2, "run") << "ESP is now 0x" << HEXWORD << Reg[ESP].u << end();
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break;
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}
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}
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break;
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}
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