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| author | Kartik Agaram <vc@akkartik.com> | 2019-03-29 00:47:30 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2019-03-29 00:47:30 -0700 |
| commit | 9c1056f531217f3c1c12b3b3a648ca1cffe4beab (patch) | |
| tree | 0e5a0bd0619e481470be58c11805434c630d996b /html/subx/019functions.cc.html | |
| parent | d689ac180ad47222aa59944d42c1e26e7b2423c6 (diff) | |
| download | mu-9c1056f531217f3c1c12b3b3a648ca1cffe4beab.tar.gz | |
5033
Diffstat (limited to 'html/subx/019functions.cc.html')
| -rw-r--r-- | html/subx/019functions.cc.html | 212 |
1 files changed, 117 insertions, 95 deletions
diff --git a/html/subx/019functions.cc.html b/html/subx/019functions.cc.html index 4008c175..0ad5ce43 100644 --- a/html/subx/019functions.cc.html +++ b/html/subx/019functions.cc.html @@ -15,8 +15,6 @@ body { font-size:12pt; font-family: monospace; color: #000000; background-color: a { color:inherit; } * { font-size:12pt; font-size: 1em; } .CommentedCode { color: #8a8a8a; } -.traceContains { color: #005f00; } -.PreProc { color: #c000c0; } .LineNr { } .Constant { color: #008787; } .Delimiter { color: #c000c0; } @@ -60,99 +58,123 @@ if ('onhashchange' in window) { <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/master/subx/019functions.cc'>https://github.com/akkartik/mu/blob/master/subx/019functions.cc</a> <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">:(before "End Initialize Op Names")</span> -<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L262'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L380'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"e8"</span><span class="Delimiter">,</span> <span class="Constant">"call disp32 (call)"</span><span class="Delimiter">);</span> -<span id="L5" class="LineNr"> 5 </span> -<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario call_disp32)</span> -<span id="L7" class="LineNr"> 7 </span><span class="Special">% Reg[ESP].u = 0x64;</span> -<span id="L8" class="LineNr"> 8 </span>== <span class="Constant">0x1</span> -<span id="L9" class="LineNr"> 9 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L10" class="LineNr">10 </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="L11" class="LineNr">11 </span> <span class="Comment"># next EIP is 6</span> -<span id="L12" class="LineNr">12 </span><span class="traceContains">+run: call <a href='037heap.cc.html#L23'>imm32</a> 0x000000a0</span> -<span id="L13" class="LineNr">13 </span><span class="traceContains">+run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000060</span> -<span id="L14" class="LineNr">14 </span><span class="traceContains">+run: pushing value 0x00000006</span> -<span id="L15" class="LineNr">15 </span><span class="traceContains">+run: jumping to 0x000000a6</span> -<span id="L16" class="LineNr">16 </span> -<span id="L17" class="LineNr">17 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> -<span id="L18" class="LineNr">18 </span><span class="Normal">case</span> <span class="Constant">0xe8</span>: <span class="Delimiter">{</span> <span class="Comment">// call disp32 relative to next EIP</span> -<span id="L19" class="LineNr">19 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span> offset = <a href='011run.cc.html#L336'>next32</a><span class="Delimiter">();</span> -<span id="L20" class="LineNr">20 </span> ++<span class="Special">Callstack_depth</span><span class="Delimiter">;</span> -<span id="L21" class="LineNr">21 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call <a href='037heap.cc.html#L23'>imm32</a> 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << offset << end<span class="Delimiter">();</span> -<span id="L22" class="LineNr">22 </span><span class="CommentedCode">//? cerr << "push: EIP: " << EIP << " => " << Reg[ESP].u << '\n';</span> -<span id="L23" class="LineNr">23 </span> <a href='012elf.cc.html#L90'>push</a><span class="Delimiter">(</span>EIP<span class="Delimiter">);</span> -<span id="L24" class="LineNr">24 </span> EIP += offset<span class="Delimiter">;</span> -<span id="L25" class="LineNr">25 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << EIP << end<span class="Delimiter">();</span> -<span id="L26" class="LineNr">26 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L27" class="LineNr">27 </span><span class="Delimiter">}</span> -<span id="L28" class="LineNr">28 </span> -<span id="L29" class="LineNr">29 </span><span class="Comment">//:</span> -<span id="L30" class="LineNr">30 </span> -<span id="L31" class="LineNr">31 </span><span class="Delimiter">:(scenario call_r32)</span> -<span id="L32" class="LineNr">32 </span><span class="Special">% Reg[ESP].u = 0x64;</span> -<span id="L33" class="LineNr">33 </span><span class="Special">% Reg[EBX].u = 0x000000a0;</span> -<span id="L34" class="LineNr">34 </span>== <span class="Constant">0x1</span> -<span id="L35" class="LineNr">35 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L36" class="LineNr">36 </span> ff d3 <span class="Comment"># call function offset at EBX</span> -<span id="L37" class="LineNr">37 </span> <span class="Comment"># next EIP is 3</span> -<span id="L38" class="LineNr">38 </span><span class="traceContains">+run: call to r/m32</span> -<span id="L39" class="LineNr">39 </span><span class="traceContains">+run: r/m32 is <a href='010---vm.cc.html#L16'>EBX</a></span> -<span id="L40" class="LineNr">40 </span><span class="traceContains">+run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000060</span> -<span id="L41" class="LineNr">41 </span><span class="traceContains">+run: pushing value 0x00000003</span> -<span id="L42" class="LineNr">42 </span><span class="traceContains">+run: jumping to 0x000000a3</span> -<span id="L43" class="LineNr">43 </span> -<span id="L44" class="LineNr">44 </span><span class="Delimiter">:(before "End Op ff Subops")</span> -<span id="L45" class="LineNr">45 </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="L46" class="LineNr">46 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call to r/m32"</span> << end<span class="Delimiter">();</span> -<span id="L47" class="LineNr">47 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* offset = <a href='013direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> -<span id="L48" class="LineNr">48 </span> <a href='012elf.cc.html#L90'>push</a><span class="Delimiter">(</span>EIP<span class="Delimiter">);</span> -<span id="L49" class="LineNr">49 </span> EIP += *offset<span class="Delimiter">;</span> -<span id="L50" class="LineNr">50 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << EIP << end<span class="Delimiter">();</span> -<span id="L51" class="LineNr">51 </span> ++<span class="Special">Callstack_depth</span><span class="Delimiter">;</span> -<span id="L52" class="LineNr">52 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L53" class="LineNr">53 </span><span class="Delimiter">}</span> -<span id="L54" class="LineNr">54 </span> -<span id="L55" class="LineNr">55 </span><span class="Delimiter">:(scenario call_mem_at_r32)</span> -<span id="L56" class="LineNr">56 </span><span class="Special">% Reg[ESP].u = 0x64;</span> -<span id="L57" class="LineNr">57 </span><span class="Special">% Reg[EBX].u = 0x2000;</span> -<span id="L58" class="LineNr">58 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> -<span id="L59" class="LineNr">59 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L60" class="LineNr">60 </span> ff <span class="Constant">13</span> <span class="Comment"># call function offset at *EBX</span> -<span id="L61" class="LineNr">61 </span> <span class="Comment"># next EIP is 3</span> -<span id="L62" class="LineNr">62 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> -<span id="L63" class="LineNr">63 </span>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"># 0xa0</span> -<span id="L64" class="LineNr">64 </span><span class="traceContains">+run: call to r/m32</span> -<span id="L65" class="LineNr">65 </span><span class="traceContains">+run: effective address is 0x00002000 (EBX)</span> -<span id="L66" class="LineNr">66 </span><span class="traceContains">+run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000060</span> -<span id="L67" class="LineNr">67 </span><span class="traceContains">+run: pushing value 0x00000003</span> -<span id="L68" class="LineNr">68 </span><span class="traceContains">+run: jumping to 0x000000a3</span> -<span id="L69" class="LineNr">69 </span> -<span id="L70" class="LineNr">70 </span><span class="SalientComment">//:: ret</span> -<span id="L71" class="LineNr">71 </span> -<span id="L72" class="LineNr">72 </span><span class="Delimiter">:(before "End Initialize Op Names")</span> -<span id="L73" class="LineNr">73 </span><a href='001help.cc.html#L262'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L380'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"c3"</span><span class="Delimiter">,</span> <span class="Constant">"return from most recent unfinished call (ret)"</span><span class="Delimiter">);</span> -<span id="L74" class="LineNr">74 </span> -<span id="L75" class="LineNr">75 </span><span class="Delimiter">:(scenario ret)</span> -<span id="L76" class="LineNr">76 </span><span class="Special">% Reg[ESP].u = 0x2000;</span> -<span id="L77" class="LineNr">77 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> -<span id="L78" class="LineNr">78 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L79" class="LineNr">79 </span> c3 -<span id="L80" class="LineNr">80 </span>== <span class="Constant">0x2000</span> <span class="Comment"># data segment</span> -<span id="L81" class="LineNr">81 </span><span class="Constant">10</span> <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"># 0x10</span> -<span id="L82" class="LineNr">82 </span><span class="traceContains">+run: return</span> -<span id="L83" class="LineNr">83 </span><span class="traceContains">+run: popping value 0x00000010</span> -<span id="L84" class="LineNr">84 </span><span class="traceContains">+run: jumping to 0x00000010</span> -<span id="L85" class="LineNr">85 </span> -<span id="L86" class="LineNr">86 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> -<span id="L87" class="LineNr">87 </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="L88" class="LineNr">88 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"return"</span> << end<span class="Delimiter">();</span> -<span id="L89" class="LineNr">89 </span> --<span class="Special">Callstack_depth</span><span class="Delimiter">;</span> -<span id="L90" class="LineNr">90 </span> EIP = <a href='013direct_addressing.cc.html#L789'>pop</a><span class="Delimiter">();</span> -<span id="L91" class="LineNr">91 </span> <a href='003trace.cc.html#L98'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L433'>HEXWORD</a> << EIP << end<span class="Delimiter">();</span> -<span id="L92" class="LineNr">92 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L93" class="LineNr">93 </span><span class="Delimiter">}</span> +<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">:(before "End Initialize Op Names")</span> +<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L262'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L387'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"e8"</span><span class="Delimiter">,</span> <span class="Constant">"call <a href='040---tests.cc.html#L83'>disp32</a> (call)"</span><span class="Delimiter">);</span> +<span id="L5" class="LineNr"> 5 </span> +<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(code)</span> +<span id="L7" class="LineNr"> 7 </span><span class="Normal">void</span> <a href='019functions.cc.html#L7'>test_call_disp32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L8" class="LineNr"> 8 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u = <span class="Constant">0x64</span><span class="Delimiter">;</span> +<span id="L9" class="LineNr"> 9 </span> <a href='011run.cc.html#L86'>run</a><span class="Delimiter">(</span> +<span id="L10" class="LineNr"> 10 </span> <span class="Constant">"== 0x1\n"</span> <span class="Comment">// code segment</span> +<span id="L11" class="LineNr"> 11 </span> <span class="Comment">// op ModR/M SIB displacement immediate</span> +<span id="L12" class="LineNr"> 12 </span> <span class="Constant">" e8 a0 00 00 00 \n"</span> <span class="Comment">// call function offset at 0x000000a0</span> +<span id="L13" class="LineNr"> 13 </span> <span class="Comment">// next EIP is 6</span> +<span id="L14" class="LineNr"> 14 </span> <span class="Delimiter">);</span> +<span id="L15" class="LineNr"> 15 </span> <a href='003trace.cc.html#L266'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> +<span id="L16" class="LineNr"> 16 </span> <span class="Constant">"run: call <a href='037heap.cc.html#L23'>imm32</a> 0x000000a0\n"</span> +<span id="L17" class="LineNr"> 17 </span> <span class="Constant">"run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000060\n"</span> +<span id="L18" class="LineNr"> 18 </span> <span class="Constant">"run: pushing value 0x00000006\n"</span> +<span id="L19" class="LineNr"> 19 </span> <span class="Constant">"run: jumping to 0x000000a6\n"</span> +<span id="L20" class="LineNr"> 20 </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="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L24" class="LineNr"> 24 </span><span class="Normal">case</span> <span class="Constant">0xe8</span>: <span class="Delimiter">{</span> <span class="Comment">// call disp32 relative to next EIP</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span> <a href='039debug.cc.html#L30'>offset</a> = <a href='011run.cc.html#L366'>next32</a><span class="Delimiter">();</span> +<span id="L26" class="LineNr"> 26 </span> ++<span class="Special">Callstack_depth</span><span class="Delimiter">;</span> +<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call <a href='037heap.cc.html#L23'>imm32</a> 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << <a href='039debug.cc.html#L30'>offset</a> << end<span class="Delimiter">();</span> +<span id="L28" class="LineNr"> 28 </span><span class="CommentedCode">//? cerr << "push: EIP: " << EIP << " => " << Reg[ESP].u << '\n';</span> +<span id="L29" class="LineNr"> 29 </span> <a href='012elf.cc.html#L90'>push</a><span class="Delimiter">(</span>EIP<span class="Delimiter">);</span> +<span id="L30" class="LineNr"> 30 </span> EIP += <a href='039debug.cc.html#L30'>offset</a><span class="Delimiter">;</span> +<span id="L31" class="LineNr"> 31 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << EIP << end<span class="Delimiter">();</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L33" class="LineNr"> 33 </span><span class="Delimiter">}</span> +<span id="L34" class="LineNr"> 34 </span> +<span id="L35" class="LineNr"> 35 </span><span class="Comment">//:</span> +<span id="L36" class="LineNr"> 36 </span> +<span id="L37" class="LineNr"> 37 </span><span class="Delimiter">:(code)</span> +<span id="L38" class="LineNr"> 38 </span><span class="Normal">void</span> <a href='019functions.cc.html#L38'>test_call_r32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L39" class="LineNr"> 39 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u = <span class="Constant">0x64</span><span class="Delimiter">;</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u = <span class="Constant">0x000000a0</span><span class="Delimiter">;</span> +<span id="L41" class="LineNr"> 41 </span> <a href='011run.cc.html#L86'>run</a><span class="Delimiter">(</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Constant">"== 0x1\n"</span> <span class="Comment">// code segment</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Comment">// op ModR/M SIB displacement immediate</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Constant">" ff d3 \n"</span> <span class="Comment">// call function offset at EBX</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment">// next EIP is 3</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Delimiter">);</span> +<span id="L47" class="LineNr"> 47 </span> <a href='003trace.cc.html#L266'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Constant">"run: call to r/m32\n"</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Constant">"run: r/m32 is EBX\n"</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Constant">"run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000060\n"</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Constant">"run: pushing value 0x00000003\n"</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Constant">"run: jumping to 0x000000a3\n"</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Delimiter">);</span> +<span id="L54" class="LineNr"> 54 </span><span class="Delimiter">}</span> +<span id="L55" class="LineNr"> 55 </span> +<span id="L56" class="LineNr"> 56 </span><span class="Delimiter">:(before "End Op ff Subops")</span> +<span id="L57" class="LineNr"> 57 </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="L58" class="LineNr"> 58 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call to r/m32"</span> << end<span class="Delimiter">();</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* <a href='039debug.cc.html#L30'>offset</a> = <a href='013direct_addressing.cc.html#L38'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L60" class="LineNr"> 60 </span> <a href='012elf.cc.html#L90'>push</a><span class="Delimiter">(</span>EIP<span class="Delimiter">);</span> +<span id="L61" class="LineNr"> 61 </span> EIP += *offset<span class="Delimiter">;</span> +<span id="L62" class="LineNr"> 62 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << EIP << end<span class="Delimiter">();</span> +<span id="L63" class="LineNr"> 63 </span> ++<span class="Special">Callstack_depth</span><span class="Delimiter">;</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L65" class="LineNr"> 65 </span><span class="Delimiter">}</span> +<span id="L66" class="LineNr"> 66 </span> +<span id="L67" class="LineNr"> 67 </span><span class="Delimiter">:(code)</span> +<span id="L68" class="LineNr"> 68 </span><span class="Normal">void</span> <a href='019functions.cc.html#L68'>test_call_mem_at_r32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L69" class="LineNr"> 69 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u = <span class="Constant">0x64</span><span class="Delimiter">;</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u = <span class="Constant">0x2000</span><span class="Delimiter">;</span> +<span id="L71" class="LineNr"> 71 </span> <a href='011run.cc.html#L86'>run</a><span class="Delimiter">(</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Constant">"== 0x1\n"</span> <span class="Comment">// code segment</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Comment">// op ModR/M SIB displacement immediate</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Constant">" ff 13 \n"</span> <span class="Comment">// call function offset at *EBX</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Comment">// next EIP is 3</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Constant">"== 0x2000\n"</span> <span class="Comment">// data segment</span> +<span id="L77" class="LineNr"> 77 </span> <span class="Constant">"a0 00 00 00\n"</span> <span class="Comment">// 0x000000a0</span> +<span id="L78" class="LineNr"> 78 </span> <span class="Delimiter">);</span> +<span id="L79" class="LineNr"> 79 </span> <a href='003trace.cc.html#L266'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Constant">"run: call to r/m32\n"</span> +<span id="L81" class="LineNr"> 81 </span> <span class="Constant">"run: effective address is 0x00002000 (EBX)\n"</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Constant">"run: decrementing <a href='010---vm.cc.html#L17'>ESP</a> to 0x00000060\n"</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Constant">"run: pushing value 0x00000003\n"</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Constant">"run: jumping to 0x000000a3\n"</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Delimiter">);</span> +<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span> +<span id="L87" class="LineNr"> 87 </span> +<span id="L88" class="LineNr"> 88 </span><span class="SalientComment">//:: ret</span> +<span id="L89" class="LineNr"> 89 </span> +<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">:(before "End Initialize Op Names")</span> +<span id="L91" class="LineNr"> 91 </span><a href='001help.cc.html#L262'>put_new</a><span class="Delimiter">(</span><span class="Special"><a href='010---vm.cc.html#L387'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">"c3"</span><span class="Delimiter">,</span> <span class="Constant">"return from most recent unfinished call (ret)"</span><span class="Delimiter">);</span> +<span id="L92" class="LineNr"> 92 </span> +<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">:(code)</span> +<span id="L94" class="LineNr"> 94 </span><span class="Normal">void</span> <a href='019functions.cc.html#L94'>test_ret</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Special"><a href='010---vm.cc.html#L28'>Reg</a></span>[ESP]<span class="Delimiter">.</span>u = <span class="Constant">0x2000</span><span class="Delimiter">;</span> +<span id="L96" class="LineNr"> 96 </span> <a href='011run.cc.html#L86'>run</a><span class="Delimiter">(</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Constant">"== 0x1\n"</span> <span class="Comment">// code segment</span> +<span id="L98" class="LineNr"> 98 </span> <span class="Comment">// op ModR/M SIB displacement immediate</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Constant">" c3 \n"</span> <span class="Comment">// return</span> +<span id="L100" class="LineNr">100 </span> <span class="Constant">"== 0x2000\n"</span> <span class="Comment">// data segment</span> +<span id="L101" class="LineNr">101 </span> <span class="Constant">"10 00 00 00\n"</span> <span class="Comment">// 0x00000010</span> +<span id="L102" class="LineNr">102 </span> <span class="Delimiter">);</span> +<span id="L103" class="LineNr">103 </span> <a href='003trace.cc.html#L266'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> +<span id="L104" class="LineNr">104 </span> <span class="Constant">"run: return\n"</span> +<span id="L105" class="LineNr">105 </span> <span class="Constant">"run: popping value 0x00000010\n"</span> +<span id="L106" class="LineNr">106 </span> <span class="Constant">"run: jumping to 0x00000010\n"</span> +<span id="L107" class="LineNr">107 </span> <span class="Delimiter">);</span> +<span id="L108" class="LineNr">108 </span><span class="Delimiter">}</span> +<span id="L109" class="LineNr">109 </span> +<span id="L110" class="LineNr">110 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L111" class="LineNr">111 </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="L112" class="LineNr">112 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"return"</span> << end<span class="Delimiter">();</span> +<span id="L113" class="LineNr">113 </span> --<span class="Special">Callstack_depth</span><span class="Delimiter">;</span> +<span id="L114" class="LineNr">114 </span> EIP = <a href='013direct_addressing.cc.html#L960'>pop</a><span class="Delimiter">();</span> +<span id="L115" class="LineNr">115 </span> <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="Special">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010---vm.cc.html#L440'>HEXWORD</a> << EIP << end<span class="Delimiter">();</span> +<span id="L116" class="LineNr">116 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L117" class="LineNr">117 </span><span class="Delimiter">}</span> </pre> </body> </html> |