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<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">//:: call</span>
<span id="L2" class="LineNr"> 2 </span>
<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(scenario call_imm32)</span>
<span id="L4" class="LineNr"> 4 </span><span class="Special">% Reg[ESP].u = 0x64;</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment"># op ModR/M SIB displacement immediate</span>
<span id="L6" class="LineNr"> 6 </span> e8 a0 <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># call function offset at 0x000000a0</span>
<span id="L7" class="LineNr"> 7 </span> <span class="Comment"># next EIP is 6</span>
<span id="L8" class="LineNr"> 8 </span><span class="traceContains">+run: call <a href='010core.cc.html#L219'>imm32</a> 0x000000a0</span>
<span id="L9" class="LineNr"> 9 </span><span class="traceContains">+run: decrementing <a href='010core.cc.html#L11'>ESP</a> to 0x00000060</span>
<span id="L10" class="LineNr">10 </span><span class="traceContains">+run: pushing value 0x00000006</span>
<span id="L11" class="LineNr">11 </span><span class="traceContains">+run: jumping to 0x000000a6</span>
<span id="L12" class="LineNr">12 </span>
<span id="L13" class="LineNr">13 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span>
<span id="L14" class="LineNr">14 </span><span class="Normal">case</span> <span class="Constant">0xe8</span>: <span class="Delimiter">{</span> <span class="Comment">// call imm32 relative to next EIP</span>
<span id="L15" class="LineNr">15 </span> <span class="Normal">int32_t</span> offset = <a href='010core.cc.html#L219'>imm32</a><span class="Delimiter">();</span>
<span id="L16" class="LineNr">16 </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">"call <a href='010core.cc.html#L219'>imm32</a> 0x"</span> << <a href='010core.cc.html#L244'>HEXWORD</a> << offset << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span>
<span id="L17" class="LineNr">17 </span> <a href='011direct_addressing.cc.html#L283'>push</a><span class="Delimiter">(</span><a href='010core.cc.html#L23'>EIP</a><span class="Delimiter">);</span>
<span id="L18" class="LineNr">18 </span> <a href='010core.cc.html#L23'>EIP</a> += offset<span class="Delimiter">;</span>
<span id="L19" class="LineNr">19 </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">"jumping to 0x"</span> << <a href='010core.cc.html#L244'>HEXWORD</a> << <a href='010core.cc.html#L23'>EIP</a> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span>
<span id="L20" class="LineNr">20 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L21" class="LineNr">21 </span><span class="Delimiter">}</span>
<span id="L22" class="LineNr">22 </span>
<span id="L23" class="LineNr">23 </span><span class="Comment">//:</span>
<span id="L24" class="LineNr">24 </span>
<span id="L25" class="LineNr">25 </span><span class="Delimiter">:(scenario call_r32)</span>
<span id="L26" class="LineNr">26 </span><span class="Special">% Reg[ESP].u = 0x64;</span>
<span id="L27" class="LineNr">27 </span><span class="Special">% Reg[EBX].u = 0x000000a0;</span>
<span id="L28" class="LineNr">28 </span><span class="Comment"># op ModR/M SIB displacement immediate</span>
<span id="L29" class="LineNr">29 </span> ff d3 <span class="Comment"># call function offset at EBX</span>
<span id="L30" class="LineNr">30 </span> <span class="Comment"># next EIP is 3</span>
<span id="L31" class="LineNr">31 </span><span class="traceContains">+run: call to r/m32</span>
<span id="L32" class="LineNr">32 </span><span class="traceContains">+run: r/m32 is <a href='010core.cc.html#L10'>EBX</a></span>
<span id="L33" class="LineNr">33 </span><span class="traceContains">+run: decrementing <a href='010core.cc.html#L11'>ESP</a> to 0x00000060</span>
<span id="L34" class="LineNr">34 </span><span class="traceContains">+run: pushing value 0x00000003</span>
<span id="L35" class="LineNr">35 </span><span class="traceContains">+run: jumping to 0x000000a3</span>
<span id="L36" class="LineNr">36 </span>
<span id="L37" class="LineNr">37 </span><span class="Delimiter">:(before "End Op ff Subops")</span>
<span id="L38" class="LineNr">38 </span><span class="Normal">case</span> <span class="Constant">2</span>: <span class="Delimiter">{</span> <span class="Comment">// call function pointer at r/m32</span>
<span id="L39" class="LineNr">39 </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">"call to r/m32"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span>
<span id="L40" class="LineNr">40 </span> <span class="Normal">int32_t</span>* offset = <a href='011direct_addressing.cc.html#L27'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span>
<span id="L41" class="LineNr">41 </span> <a href='011direct_addressing.cc.html#L283'>push</a><span class="Delimiter">(</span><a href='010core.cc.html#L23'>EIP</a><span class="Delimiter">);</span>
<span id="L42" class="LineNr">42 </span> <a href='010core.cc.html#L23'>EIP</a> += *offset<span class="Delimiter">;</span>
<span id="L43" class="LineNr">43 </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">"jumping to 0x"</span> << <a href='010core.cc.html#L244'>HEXWORD</a> << <a href='010core.cc.html#L23'>EIP</a> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span>
<span id="L44" class="LineNr">44 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L45" class="LineNr">45 </span><span class="Delimiter">}</span>
<span id="L46" class="LineNr">46 </span>
<span id="L47" class="LineNr">47 </span><span class="Delimiter">:(scenario call_mem_at_r32)</span>
<span id="L48" class="LineNr">48 </span><span class="Special">% Reg[ESP].u = 0x64;</span>
<span id="L49" class="LineNr">49 </span><span class="Special">% Reg[EBX].u = 0x10;</span>
<span id="L50" class="LineNr">50 </span><span class="Special">% SET_WORD_IN_MEM(0x10, 0x000000a0);</span>
<span id="L51" class="LineNr">51 </span><span class="Comment"># op ModR/M SIB displacement immediate</span>
<span id="L52" class="LineNr">52 </span> ff <span class="Constant">13</span> <span class="Comment"># call function offset at *EBX</span>
<span id="L53" class="LineNr">53 </span> <span class="Comment"># next EIP is 3</span>
<span id="L54" class="LineNr">54 </span><span class="traceContains">+run: call to r/m32</span>
<span id="L55" class="LineNr">55 </span><span class="traceContains">+run: effective address is 0x10 (EBX)</span>
<span id="L56" class="LineNr">56 </span><span class="traceContains">+run: decrementing <a href='010core.cc.html#L11'>ESP</a> to 0x00000060</span>
<span id="L57" class="LineNr">57 </span><span class="traceContains">+run: pushing value 0x00000003</span>
<span id="L58" class="LineNr">58 </span><span class="traceContains">+run: jumping to 0x000000a3</span>
<span id="L59" class="LineNr">59 </span>
<span id="L60" class="LineNr">60 </span><span class="SalientComment">//:: ret</span>
<span id="L61" class="LineNr">61 </span>
<span id="L62" class="LineNr">62 </span><span class="Delimiter">:(scenario ret)</span>
<span id="L63" class="LineNr">63 </span><span class="Special">% Reg[ESP].u = 0x60;</span>
<span id="L64" class="LineNr">64 </span><span class="Special">% SET_WORD_IN_MEM(0x60, 0x00000010);</span>
<span id="L65" class="LineNr">65 </span><span class="Comment"># op ModR/M SIB displacement immediate</span>
<span id="L66" class="LineNr">66 </span> c3
<span id="L67" class="LineNr">67 </span><span class="traceContains">+run: return</span>
<span id="L68" class="LineNr">68 </span><span class="traceContains">+run: popping value 0x00000010</span>
<span id="L69" class="LineNr">69 </span><span class="traceContains">+run: jumping to 0x00000010</span>
<span id="L70" class="LineNr">70 </span>
<span id="L71" class="LineNr">71 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span>
<span id="L72" class="LineNr">72 </span><span class="Normal">case</span> <span class="Constant">0xc3</span>: <span class="Delimiter">{</span> <span class="Comment">// return from a call</span>
<span id="L73" class="LineNr">73 </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">"return"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span>
<span id="L74" class="LineNr">74 </span> <a href='010core.cc.html#L23'>EIP</a> = <a href='011direct_addressing.cc.html#L316'>pop</a><span class="Delimiter">();</span>
<span id="L75" class="LineNr">75 </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">"jumping to 0x"</span> << <a href='010core.cc.html#L244'>HEXWORD</a> << <a href='010core.cc.html#L23'>EIP</a> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span>
<span id="L76" class="LineNr">76 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L77" class="LineNr">77 </span><span class="Delimiter">}</span>
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