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-rw-r--r--html/020syscalls.cc.html185
-rw-r--r--html/apps/mu.subx.html2
-rw-r--r--html/apps/tile.mu.html122
3 files changed, 217 insertions, 92 deletions
diff --git a/html/020syscalls.cc.html b/html/020syscalls.cc.html
index 561f1c9c..a3c5762e 100644
--- a/html/020syscalls.cc.html
+++ b/html/020syscalls.cc.html
@@ -59,128 +59,131 @@ if ('onhashchange' in window) {
 <a href='https://github.com/akkartik/mu/blob/master/020syscalls.cc'>https://github.com/akkartik/mu/blob/master/020syscalls.cc</a>
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr">  1 </span><span class="Delimiter">:(before &quot;End Initialize Op Names&quot;)</span>
-<span id="L2" class="LineNr">  2 </span>put_new<span class="Delimiter">(</span><span class="SpecialChar">Name</span><span class="Delimiter">,</span> <span class="Constant">&quot;cd&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;software interrupt (int)&quot;</span><span class="Delimiter">);</span>
+<span id="L2" class="LineNr">  2 </span><a href='001help.cc.html#L235'>put_new</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L341'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;cd&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;software interrupt (int)&quot;</span><span class="Delimiter">);</span>
 <span id="L3" class="LineNr">  3 </span>
 <span id="L4" class="LineNr">  4 </span><span class="Delimiter">:(before &quot;End Single-Byte Opcodes&quot;)</span>
 <span id="L5" class="LineNr">  5 </span><span class="Normal">case</span> <span class="Constant">0xcd</span>: <span class="Delimiter">{</span>  <span class="Comment">// int imm8 (software interrupt)</span>
-<span id="L6" class="LineNr">  6 </span>  trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;syscall&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L7" class="LineNr">  7 </span>  <span class="Normal">uint8_t</span> code = next<span class="Delimiter">();</span>
+<span id="L6" class="LineNr">  6 </span>  <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;syscall&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L7" class="LineNr">  7 </span>  <span class="Normal">uint8_t</span> code = <a href='010vm.cc.html#L324'>next</a><span class="Delimiter">();</span>
 <span id="L8" class="LineNr">  8 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>code != <span class="Constant">0x80</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L9" class="LineNr">  9 </span>    raise &lt;&lt; <span class="Constant">&quot;Unimplemented interrupt code &quot;</span> &lt;&lt; HEXBYTE &lt;&lt; code &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L10" class="LineNr"> 10 </span>    raise &lt;&lt; <span class="Constant">&quot;  Only `int 80h` supported for now.\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L9" class="LineNr">  9 </span>    <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;Unimplemented interrupt code &quot;</span> &lt;&lt; <a href='010vm.cc.html#L393'>HEXBYTE</a> &lt;&lt; code &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L10" class="LineNr"> 10 </span>    <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;  Only `int 80h` supported for now.\n&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L11" class="LineNr"> 11 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L12" class="LineNr"> 12 </span>  <span class="Delimiter">}</span>
-<span id="L13" class="LineNr"> 13 </span>  process_int80<span class="Delimiter">();</span>
+<span id="L13" class="LineNr"> 13 </span>  <a href='020syscalls.cc.html#L18'>process_int80</a><span class="Delimiter">();</span>
 <span id="L14" class="LineNr"> 14 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L15" class="LineNr"> 15 </span><span class="Delimiter">}</span>
 <span id="L16" class="LineNr"> 16 </span>
 <span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(code)</span>
-<span id="L18" class="LineNr"> 18 </span><span class="Normal">void</span> process_int80<span class="Delimiter">()</span> <span class="Delimiter">{</span>
-<span id="L19" class="LineNr"> 19 </span>  <span class="Normal">switch</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L18" class="LineNr"> 18 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L18'>process_int80</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
+<span id="L19" class="LineNr"> 19 </span>  <span class="Normal">switch</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L20" class="LineNr"> 20 </span>  <span class="Normal">case</span> <span class="Constant">1</span>:
-<span id="L21" class="LineNr"> 21 </span>    exit<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">exit code</span><span class="Comment">*/</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
+<span id="L21" class="LineNr"> 21 </span>    exit<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">exit code</span><span class="Comment">*/</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
 <span id="L22" class="LineNr"> 22 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L23" class="LineNr"> 23 </span>  <span class="Normal">case</span> <span class="Constant">3</span>:
-<span id="L24" class="LineNr"> 24 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;read: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EDX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L25" class="LineNr"> 25 </span>    <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i = read<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">memory buffer</span><span class="Comment">*/</span>mem_addr_u8<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span><span class="SpecialChar">Reg</span>[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
-<span id="L26" class="LineNr"> 26 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L27" class="LineNr"> 27 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> raise &lt;&lt; <span class="Constant">&quot;read: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L24" class="LineNr"> 24 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;read: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EDX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L25" class="LineNr"> 25 </span>    <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = read<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">memory buffer</span><span class="Comment">*/</span><a href='010vm.cc.html#L180'>mem_addr_u8</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
+<span id="L26" class="LineNr"> 26 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L27" class="LineNr"> 27 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;read: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L28" class="LineNr"> 28 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L29" class="LineNr"> 29 </span>  <span class="Normal">case</span> <span class="Constant">4</span>:
-<span id="L30" class="LineNr"> 30 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;write: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EDX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L31" class="LineNr"> 31 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; mem_addr_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="SpecialChar">Reg</span>[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L32" class="LineNr"> 32 </span>    <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i = write<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">memory buffer</span><span class="Comment">*/</span>mem_addr_u8<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span><span class="SpecialChar">Reg</span>[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
-<span id="L33" class="LineNr"> 33 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L34" class="LineNr"> 34 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> raise &lt;&lt; <span class="Constant">&quot;write: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L30" class="LineNr"> 30 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;write: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EDX]<span class="Delimiter">.</span>u &lt;&lt; end<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="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; <a href='010vm.cc.html#L222'>mem_addr_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L32" class="LineNr"> 32 </span>    <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = write<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">memory buffer</span><span class="Comment">*/</span><a href='010vm.cc.html#L180'>mem_addr_u8</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
+<span id="L33" class="LineNr"> 33 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L34" class="LineNr"> 34 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;write: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L35" class="LineNr"> 35 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L36" class="LineNr"> 36 </span>  <span class="Normal">case</span> <span class="Constant">5</span>: <span class="Delimiter">{</span>
-<span id="L37" class="LineNr"> 37 </span>    check_flags<span class="Delimiter">(</span>ECX<span class="Delimiter">);</span>
-<span id="L38" class="LineNr"> 38 </span>    check_mode<span class="Delimiter">(</span>EDX<span class="Delimiter">);</span>
-<span id="L39" class="LineNr"> 39 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;open: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L40" class="LineNr"> 40 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L41" class="LineNr"> 41 </span>    <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i = open<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span>mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">flags</span><span class="Comment">*/</span><span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">mode</span><span class="Comment">*/</span><span class="PreProc">0</span><span class="Constant">640</span><span class="Delimiter">);</span>
-<span id="L42" class="LineNr"> 42 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L43" class="LineNr"> 43 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> raise &lt;&lt; <span class="Constant">&quot;open: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L37" class="LineNr"> 37 </span>    <a href='020syscalls.cc.html#L92'>check_flags</a><span class="Delimiter">(</span><a href='010vm.cc.html#L11'>ECX</a><span class="Delimiter">);</span>
+<span id="L38" class="LineNr"> 38 </span>    <a href='020syscalls.cc.html#L104'>check_mode</a><span class="Delimiter">(</span><a href='010vm.cc.html#L12'>EDX</a><span class="Delimiter">);</span>
+<span id="L39" class="LineNr"> 39 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;open: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L40" class="LineNr"> 40 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; <a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L41" class="LineNr"> 41 </span>    <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = open<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">flags</span><span class="Comment">*/</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">mode</span><span class="Comment">*/</span><span class="PreProc">0</span><span class="Constant">640</span><span class="Delimiter">);</span>
+<span id="L42" class="LineNr"> 42 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L43" class="LineNr"> 43 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;open: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<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 class="Normal">case</span> <span class="Constant">6</span>:
-<span id="L47" class="LineNr"> 47 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;close: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L48" class="LineNr"> 48 </span>    <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i = close<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
-<span id="L49" class="LineNr"> 49 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L50" class="LineNr"> 50 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> raise &lt;&lt; <span class="Constant">&quot;close: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L47" class="LineNr"> 47 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;close: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L48" class="LineNr"> 48 </span>    <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = close<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">file descriptor</span><span class="Comment">*/</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
+<span id="L49" class="LineNr"> 49 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L50" class="LineNr"> 50 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;close: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L51" class="LineNr"> 51 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L52" class="LineNr"> 52 </span>  <span class="Normal">case</span> <span class="Constant">8</span>:
-<span id="L53" class="LineNr"> 53 </span>    check_mode<span class="Delimiter">(</span>ECX<span class="Delimiter">);</span>
-<span id="L54" class="LineNr"> 54 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;creat: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L55" class="LineNr"> 55 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L56" class="LineNr"> 56 </span>    <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i = creat<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span>mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">mode</span><span class="Comment">*/</span><span class="PreProc">0</span><span class="Constant">640</span><span class="Delimiter">);</span>
-<span id="L57" class="LineNr"> 57 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L58" class="LineNr"> 58 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> raise &lt;&lt; <span class="Constant">&quot;creat: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L53" class="LineNr"> 53 </span>    <a href='020syscalls.cc.html#L104'>check_mode</a><span class="Delimiter">(</span><a href='010vm.cc.html#L11'>ECX</a><span class="Delimiter">);</span>
+<span id="L54" class="LineNr"> 54 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;creat: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L55" class="LineNr"> 55 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; <a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L56" class="LineNr"> 56 </span>    <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = creat<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">mode</span><span class="Comment">*/</span><span class="PreProc">0</span><span class="Constant">640</span><span class="Delimiter">);</span>
+<span id="L57" class="LineNr"> 57 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L58" class="LineNr"> 58 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;creat: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L59" class="LineNr"> 59 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L60" class="LineNr"> 60 </span>  <span class="Normal">case</span> <span class="Constant">10</span>:
-<span id="L61" class="LineNr"> 61 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;unlink: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L62" class="LineNr"> 62 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L63" class="LineNr"> 63 </span>    <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i = unlink<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span>mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">));</span>
-<span id="L64" class="LineNr"> 64 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L65" class="LineNr"> 65 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> raise &lt;&lt; <span class="Constant">&quot;unlink: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L61" class="LineNr"> 61 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;unlink: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; end<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="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; <a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L63" class="LineNr"> 63 </span>    <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = unlink<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">filename</span><span class="Comment">*/</span><a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">));</span>
+<span id="L64" class="LineNr"> 64 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L65" class="LineNr"> 65 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;unlink: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L66" class="LineNr"> 66 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L67" class="LineNr"> 67 </span>  <span class="Normal">case</span> <span class="Constant">38</span>:
-<span id="L68" class="LineNr"> 68 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;rename: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; -&gt; &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L69" class="LineNr"> 69 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L70" class="LineNr"> 70 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L71" class="LineNr"> 71 </span>    <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i = rename<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">old filename</span><span class="Comment">*/</span>mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">new filename</span><span class="Comment">*/</span>mem_addr_kernel_string<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">));</span>
-<span id="L72" class="LineNr"> 72 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L73" class="LineNr"> 73 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> raise &lt;&lt; <span class="Constant">&quot;rename: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L68" class="LineNr"> 68 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;rename: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; -&gt; &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L69" class="LineNr"> 69 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; <a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L70" class="LineNr"> 70 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">&quot; =&gt; &quot;</span> &lt;&lt; <a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L71" class="LineNr"> 71 </span>    <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = rename<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">old filename</span><span class="Comment">*/</span><a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">new filename</span><span class="Comment">*/</span><a href='010vm.cc.html#L219'>mem_addr_kernel_string</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">));</span>
+<span id="L72" class="LineNr"> 72 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L73" class="LineNr"> 73 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;rename: &quot;</span> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L74" class="LineNr"> 74 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L75" class="LineNr"> 75 </span>  <span class="Normal">case</span> <span class="Constant">90</span>:  <span class="Comment">// mmap: allocate memory outside existing segment allocations</span>
-<span id="L76" class="LineNr"> 76 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;mmap: allocate new segment&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L76" class="LineNr"> 76 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;mmap: allocate new segment&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L77" class="LineNr"> 77 </span>    <span class="Comment">// Ignore most arguments for now: address hint, protection flags, sharing flags, fd, offset.</span>
 <span id="L78" class="LineNr"> 78 </span>    <span class="Comment">// We only support anonymous maps.</span>
-<span id="L79" class="LineNr"> 79 </span>    <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>u = new_segment<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">length</span><span class="Comment">*/</span>read_mem_u32<span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[EBX]<span class="Delimiter">.</span>u+<span class="Constant">0x4</span><span class="Delimiter">));</span>
-<span id="L80" class="LineNr"> 80 </span>    trace<span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L79" class="LineNr"> 79 </span>    <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>u = <a href='020syscalls.cc.html#L116'>new_segment</a><span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">length</span><span class="Comment">*/</span><a href='010vm.cc.html#L172'>read_mem_u32</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EBX]<span class="Delimiter">.</span>u+<span class="Constant">0x4</span><span class="Delimiter">));</span>
+<span id="L80" class="LineNr"> 80 </span>    <a href='003trace.cc.html#L96'>trace</a><span class="Delimiter">(</span><span class="SpecialChar">Callstack_depth</span>+<span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;result: &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>u &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L81" class="LineNr"> 81 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span id="L82" class="LineNr"> 82 </span>  <span class="Normal">default</span>:
-<span id="L83" class="LineNr"> 83 </span>    raise &lt;&lt; HEXWORD &lt;&lt; EIP &lt;&lt; <span class="Constant">&quot;: unimplemented syscall &quot;</span> &lt;&lt; <span class="SpecialChar">Reg</span>[EAX]<span class="Delimiter">.</span>u &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
-<span id="L84" class="LineNr"> 84 </span>  <span class="Delimiter">}</span>
-<span id="L85" class="LineNr"> 85 </span><span class="Delimiter">}</span>
-<span id="L86" class="LineNr"> 86 </span>
-<span id="L87" class="LineNr"> 87 </span><span class="Comment">// SubX is oblivious to file permissions, directories, symbolic links, terminals, and much else besides.</span>
-<span id="L88" class="LineNr"> 88 </span><span class="Comment">// Also ignoring any concurrency considerations for now.</span>
-<span id="L89" class="LineNr"> 89 </span><span class="Normal">void</span> check_flags<span class="Delimiter">(</span><span class="Normal">int</span> reg<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L90" class="LineNr"> 90 </span>  <span class="Normal">uint32_t</span> flags = <span class="SpecialChar">Reg</span>[reg]<span class="Delimiter">.</span>u<span class="Delimiter">;</span>
-<span id="L91" class="LineNr"> 91 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>flags != <span class="Delimiter">((</span>flags &amp; O_RDONLY<span class="Delimiter">)</span> | <span class="Delimiter">(</span>flags &amp; O_WRONLY<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L92" class="LineNr"> 92 </span>    cerr &lt;&lt; HEXWORD &lt;&lt; EIP &lt;&lt; <span class="Constant">&quot;: most POSIX flags to the open() syscall are not supported. Just O_RDONLY and O_WRONLY for now. Zero concurrent access support.\n&quot;</span><span class="Delimiter">;</span>
-<span id="L93" class="LineNr"> 93 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
-<span id="L94" class="LineNr"> 94 </span>  <span class="Delimiter">}</span>
-<span id="L95" class="LineNr"> 95 </span>  <span class="Normal">if</span> <span class="Delimiter">((</span>flags &amp; O_RDONLY<span class="Delimiter">)</span> &amp;&amp; <span class="Delimiter">(</span>flags &amp; O_WRONLY<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L96" class="LineNr"> 96 </span>    cerr &lt;&lt; HEXWORD &lt;&lt; EIP &lt;&lt; <span class="Constant">&quot;: can't open a file for both reading and writing at once. See <a href="http://man7.org/linux/man-pages/man2/open.2.html.">http://man7.org/linux/man-pages/man2/open.2.html.</a>\n&quot;</span><span class="Delimiter">;</span>
-<span id="L97" class="LineNr"> 97 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
-<span id="L98" class="LineNr"> 98 </span>  <span class="Delimiter">}</span>
-<span id="L99" class="LineNr"> 99 </span><span class="Delimiter">}</span>
-<span id="L100" class="LineNr">100 </span>
-<span id="L101" class="LineNr">101 </span><span class="Normal">void</span> check_mode<span class="Delimiter">(</span><span class="Normal">int</span> reg<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L102" class="LineNr">102 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar">Reg</span>[reg]<span class="Delimiter">.</span>u != <span class="PreProc">0</span><span class="Constant">600</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L103" class="LineNr">103 </span>    cerr &lt;&lt; HEXWORD &lt;&lt; EIP &lt;&lt; <span class="Constant">&quot;: SubX is oblivious to file permissions; register &quot;</span> &lt;&lt; reg &lt;&lt; <span class="Constant">&quot; must be 0x180.\n&quot;</span><span class="Delimiter">;</span>
-<span id="L104" class="LineNr">104 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
-<span id="L105" class="LineNr">105 </span>  <span class="Delimiter">}</span>
-<span id="L106" class="LineNr">106 </span><span class="Delimiter">}</span>
-<span id="L107" class="LineNr">107 </span>
-<span id="L108" class="LineNr">108 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
-<span id="L109" class="LineNr">109 </span><span class="Comment">// Very primitive/fixed/insecure mmap segments for now.</span>
-<span id="L110" class="LineNr">110 </span><span class="Normal">uint32_t</span> <span class="SpecialChar">Segments_allocated_above</span> = END_HEAP<span class="Delimiter">;</span>
-<span id="L111" class="LineNr">111 </span><span class="Delimiter">:(code)</span>
-<span id="L112" class="LineNr">112 </span><span class="Comment">// always allocate multiples of the segment size</span>
-<span id="L113" class="LineNr">113 </span><span class="Normal">uint32_t</span> new_segment<span class="Delimiter">(</span><span class="Normal">uint32_t</span> length<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L114" class="LineNr">114 </span>  assert<span class="Delimiter">(</span>length &gt; <span class="Constant">0</span><span class="Delimiter">);</span>
-<span id="L115" class="LineNr">115 </span>  <span class="Normal">uint32_t</span> result = <span class="Delimiter">(</span><span class="SpecialChar">Segments_allocated_above</span> - length<span class="Delimiter">)</span> &amp; <span class="Constant">0xff000000</span><span class="Delimiter">;</span>  <span class="Comment">// same number of zeroes as SEGMENT_ALIGNMENT</span>
-<span id="L116" class="LineNr">116 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>result &lt;= START_HEAP<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L117" class="LineNr">117 </span>    raise &lt;&lt; <span class="Constant">&quot;Allocated too many segments; the VM ran out of memory. &quot;</span>
-<span id="L118" class="LineNr">118 </span>          &lt;&lt; <span class="Constant">&quot;Maybe SEGMENT_ALIGNMENT can be smaller?\n&quot;</span> &lt;&lt; die<span class="Delimiter">();</span>
-<span id="L119" class="LineNr">119 </span>  <span class="Delimiter">}</span>
-<span id="L120" class="LineNr">120 </span>  <span class="SpecialChar">Mem</span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span>result<span class="Delimiter">,</span> result+length<span class="Delimiter">));</span>
-<span id="L121" class="LineNr">121 </span>  <span class="SpecialChar">Segments_allocated_above</span> = result<span class="Delimiter">;</span>
-<span id="L122" class="LineNr">122 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
-<span id="L123" class="LineNr">123 </span><span class="Delimiter">}</span>
+<span id="L82" class="LineNr"> 82 </span>  <span class="Normal">case</span> <span class="Constant">0xa2</span>:  <span class="Comment">// nanosleep</span>
+<span id="L83" class="LineNr"> 83 </span>    cerr &lt;&lt; <span class="Constant">&quot;not sleeping\n&quot;</span><span class="Delimiter">;</span>
+<span id="L84" class="LineNr"> 84 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<span id="L85" class="LineNr"> 85 </span>  <span class="Normal">default</span>:
+<span id="L86" class="LineNr"> 86 </span>    <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <a href='010vm.cc.html#L394'>HEXWORD</a> &lt;&lt; <a href='010vm.cc.html#L26'>EIP</a> &lt;&lt; <span class="Constant">&quot;: unimplemented syscall &quot;</span> &lt;&lt; <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>u &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L87" class="LineNr"> 87 </span>  <span class="Delimiter">}</span>
+<span id="L88" class="LineNr"> 88 </span><span class="Delimiter">}</span>
+<span id="L89" class="LineNr"> 89 </span>
+<span id="L90" class="LineNr"> 90 </span><span class="Comment">// SubX is oblivious to file permissions, directories, symbolic links, terminals, and much else besides.</span>
+<span id="L91" class="LineNr"> 91 </span><span class="Comment">// Also ignoring any concurrency considerations for now.</span>
+<span id="L92" class="LineNr"> 92 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L92'>check_flags</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='010vm.cc.html#L20'>reg</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L93" class="LineNr"> 93 </span>  <span class="Normal">uint32_t</span> flags = <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[reg]<span class="Delimiter">.</span>u<span class="Delimiter">;</span>
+<span id="L94" class="LineNr"> 94 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>flags != <span class="Delimiter">((</span>flags &amp; O_RDONLY<span class="Delimiter">)</span> | <span class="Delimiter">(</span>flags &amp; O_WRONLY<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<span id="L95" class="LineNr"> 95 </span>    cerr &lt;&lt; <a href='010vm.cc.html#L394'>HEXWORD</a> &lt;&lt; <a href='010vm.cc.html#L26'>EIP</a> &lt;&lt; <span class="Constant">&quot;: most POSIX flags to the open() syscall are not supported. Just O_RDONLY and O_WRONLY for now. Zero concurrent access support.\n&quot;</span><span class="Delimiter">;</span>
+<span id="L96" class="LineNr"> 96 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
+<span id="L97" class="LineNr"> 97 </span>  <span class="Delimiter">}</span>
+<span id="L98" class="LineNr"> 98 </span>  <span class="Normal">if</span> <span class="Delimiter">((</span>flags &amp; O_RDONLY<span class="Delimiter">)</span> &amp;&amp; <span class="Delimiter">(</span>flags &amp; O_WRONLY<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<span id="L99" class="LineNr"> 99 </span>    cerr &lt;&lt; <a href='010vm.cc.html#L394'>HEXWORD</a> &lt;&lt; <a href='010vm.cc.html#L26'>EIP</a> &lt;&lt; <span class="Constant">&quot;: can't open a file for both reading and writing at once. See <a href="http://man7.org/linux/man-pages/man2/open.2.html.">http://man7.org/linux/man-pages/man2/open.2.html.</a>\n&quot;</span><span class="Delimiter">;</span>
+<span id="L100" class="LineNr">100 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
+<span id="L101" class="LineNr">101 </span>  <span class="Delimiter">}</span>
+<span id="L102" class="LineNr">102 </span><span class="Delimiter">}</span>
+<span id="L103" class="LineNr">103 </span>
+<span id="L104" class="LineNr">104 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L104'>check_mode</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='010vm.cc.html#L20'>reg</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L105" class="LineNr">105 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[reg]<span class="Delimiter">.</span>u != <span class="PreProc">0</span><span class="Constant">600</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L106" class="LineNr">106 </span>    cerr &lt;&lt; <a href='010vm.cc.html#L394'>HEXWORD</a> &lt;&lt; <a href='010vm.cc.html#L26'>EIP</a> &lt;&lt; <span class="Constant">&quot;: SubX is oblivious to file permissions; register &quot;</span> &lt;&lt; <a href='010vm.cc.html#L20'>reg</a> &lt;&lt; <span class="Constant">&quot; must be 0x180.\n&quot;</span><span class="Delimiter">;</span>
+<span id="L107" class="LineNr">107 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
+<span id="L108" class="LineNr">108 </span>  <span class="Delimiter">}</span>
+<span id="L109" class="LineNr">109 </span><span class="Delimiter">}</span>
+<span id="L110" class="LineNr">110 </span>
+<span id="L111" class="LineNr">111 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
+<span id="L112" class="LineNr">112 </span><span class="Comment">// Very primitive/fixed/insecure mmap segments for now.</span>
+<span id="L113" class="LineNr">113 </span><span class="Normal">uint32_t</span> <span class="SpecialChar"><a href='020syscalls.cc.html#L113'>Segments_allocated_above</a></span> = <a href='012elf.cc.html#L151'>END_HEAP</a><span class="Delimiter">;</span>
+<span id="L114" class="LineNr">114 </span><span class="Delimiter">:(code)</span>
+<span id="L115" class="LineNr">115 </span><span class="Comment">// always allocate multiples of the segment size</span>
+<span id="L116" class="LineNr">116 </span><span class="Normal">uint32_t</span> <a href='020syscalls.cc.html#L116'>new_segment</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> length<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L117" class="LineNr">117 </span>  assert<span class="Delimiter">(</span>length &gt; <span class="Constant">0</span><span class="Delimiter">);</span>
+<span id="L118" class="LineNr">118 </span>  <span class="Normal">uint32_t</span> result = <span class="Delimiter">(</span><span class="SpecialChar"><a href='020syscalls.cc.html#L113'>Segments_allocated_above</a></span> - length<span class="Delimiter">)</span> &amp; <span class="Constant">0xff000000</span><span class="Delimiter">;</span>  <span class="Comment">// same number of zeroes as SEGMENT_ALIGNMENT</span>
+<span id="L119" class="LineNr">119 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>result &lt;= <a href='012elf.cc.html#L150'>START_HEAP</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L120" class="LineNr">120 </span>    <a href='003trace.cc.html#L226'>raise</a> &lt;&lt; <span class="Constant">&quot;Allocated too many segments; the VM ran out of memory. &quot;</span>
+<span id="L121" class="LineNr">121 </span>          &lt;&lt; <span class="Constant">&quot;Maybe <a href='010vm.cc.html#L89'>SEGMENT_ALIGNMENT</a> can be smaller?\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L173'>die</a><span class="Delimiter">();</span>
+<span id="L122" class="LineNr">122 </span>  <span class="Delimiter">}</span>
+<span id="L123" class="LineNr">123 </span>  <span class="SpecialChar"><a href='010vm.cc.html#L154'>Mem</a></span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>vma<span class="Delimiter">(</span>result<span class="Delimiter">,</span> result+length<span class="Delimiter">));</span>
+<span id="L124" class="LineNr">124 </span>  <span class="SpecialChar"><a href='020syscalls.cc.html#L113'>Segments_allocated_above</a></span> = result<span class="Delimiter">;</span>
+<span id="L125" class="LineNr">125 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
+<span id="L126" class="LineNr">126 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>
diff --git a/html/apps/mu.subx.html b/html/apps/mu.subx.html
index 13b37842..a2fdb58e 100644
--- a/html/apps/mu.subx.html
+++ b/html/apps/mu.subx.html
@@ -16213,7 +16213,7 @@ if ('onhashchange' in window) {
 <span id="L16782" class="LineNr">16782 </span>    0x11/imm32/alloc-id:fake:payload
 <span id="L16783" class="LineNr">16783 </span>    <span class="subxComment"># &quot;ff 1/subop/decrement&quot;</span>
 <span id="L16784" class="LineNr">16784 </span>    0x14/imm32/size
-<span id="L16785" class="LineNr">16785 </span>    0x66/f 0x66/f 0x31/1 0x2f/slash 0x73/s 0x75/u 0x62/b 0x6f/o 0x70/p 0x2f/slash 0x64/d 0x65/e 0x63/c 0x72/r 0x65/e 0x6d/m 0x65/e 0x6e/n 0x74/t
+<span id="L16785" class="LineNr">16785 </span>    0x66/f 0x66/f 0x20/space 0x31/1 0x2f/slash 0x73/s 0x75/u 0x62/b 0x6f/o 0x70/p 0x2f/slash 0x64/d 0x65/e 0x63/c 0x72/r 0x65/e 0x6d/m 0x65/e 0x6e/n 0x74/t
 <span id="L16786" class="LineNr">16786 </span>
 <span id="L16787" class="LineNr">16787 </span><span class="SpecialChar">Single-int-var-in-mem</span>:  <span class="subxComment"># (payload list var)</span>
 <span id="L16788" class="LineNr">16788 </span>    0x11/imm32/alloc-id:fake:payload
diff --git a/html/apps/tile.mu.html b/html/apps/tile.mu.html
new file mode 100644
index 00000000..64a7b564
--- /dev/null
+++ b/html/apps/tile.mu.html
@@ -0,0 +1,122 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<title>Mu - apps/tile.mu</title>
+<meta name="Generator" content="Vim/8.1">
+<meta name="plugin-version" content="vim8.1_v1">
+<meta name="syntax" content="none">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
+<meta name="colorscheme" content="minimal-light">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
+a { color:inherit; }
+* { font-size:12pt; font-size: 1em; }
+.LineNr { }
+.muFunction { color: #af5f00; text-decoration: underline; }
+.SpecialChar { color: #d70000; }
+.Comment { color: #005faf; }
+.Constant { color: #008787; }
+.Delimiter { color: #c000c0; }
+.PreProc { color: #c000c0; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  var lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
+-->
+</script>
+</head>
+<body onload='JumpToLine();'>
+<a href='https://github.com/akkartik/mu/blob/master/apps/tile.mu'>https://github.com/akkartik/mu/blob/master/apps/tile.mu</a>
+<pre id='vimCodeElement'>
+<span id="L1" class="LineNr"> 1 </span><span class="Comment"># little example program: animate a line in text-mode</span>
+<span id="L2" class="LineNr"> 2 </span>
+<span id="L3" class="LineNr"> 3 </span><span class="PreProc">fn</span> <span class="muFunction">main</span><span class="PreProc"> -&gt; </span>exit-status/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span>
+<span id="L4" class="LineNr"> 4 </span>  <a href='../103screen.subx.html#L75'>clear-screen</a>
+<span id="L5" class="LineNr"> 5 </span>  <a href='../103screen.subx.html#L91'>move-cursor-on-screen</a> <span class="Constant">5</span>, <span class="Constant">5</span>
+<span id="L6" class="LineNr"> 6 </span>  <a href='../103screen.subx.html#L122'>print-string-to-screen</a> <span class="Constant">&quot;_________&quot;</span>
+<span id="L7" class="LineNr"> 7 </span>  <a href='../104keyboard.subx.html#L6'>enable-keyboard-immediate-mode</a>
+<span id="L8" class="LineNr"> 8 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='../104keyboard.subx.html#L122'>read-key</a>
+<span id="L9" class="LineNr"> 9 </span>  <span class="PreProc">var</span> row/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">5</span>
+<span id="L10" class="LineNr">10 </span>  <span class="Delimiter">{</span>
+<span id="L11" class="LineNr">11 </span>    compare row, <span class="Constant">0xe</span>  <span class="Comment"># 15</span>
+<span id="L12" class="LineNr">12 </span>    <span class="PreProc">break-if-=</span>
+<span id="L13" class="LineNr">13 </span>    <a href='tile.mu.html#L24'>animate</a> row
+<span id="L14" class="LineNr">14 </span>    row <span class="SpecialChar">&lt;-</span> increment
+<span id="L15" class="LineNr">15 </span>    <a href='tile.mu.html#L47'>sleep</a> <span class="Constant">0</span> <span class="Constant">0x5f5e100</span>  <span class="Comment"># 100ms</span>
+<span id="L16" class="LineNr">16 </span>    <span class="PreProc">loop</span>
+<span id="L17" class="LineNr">17 </span>  <span class="Delimiter">}</span>
+<span id="L18" class="LineNr">18 </span>  <span class="PreProc">var</span> dummy/<span class="Constant">eax</span>: byte <span class="SpecialChar">&lt;-</span> <a href='../104keyboard.subx.html#L122'>read-key</a>
+<span id="L19" class="LineNr">19 </span>  <a href='../104keyboard.subx.html#L72'>enable-keyboard-type-mode</a>
+<span id="L20" class="LineNr">20 </span>  <a href='../103screen.subx.html#L75'>clear-screen</a>
+<span id="L21" class="LineNr">21 </span>  exit-status <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L22" class="LineNr">22 </span><span class="Delimiter">}</span>
+<span id="L23" class="LineNr">23 </span>
+<span id="L24" class="LineNr">24 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tile.mu.html#L24'>animate</a></span> row: int <span class="Delimiter">{</span>
+<span id="L25" class="LineNr">25 </span>  <span class="PreProc">var</span> col/<span class="Constant">eax</span>: int <span class="SpecialChar">&lt;-</span> copy <span class="Constant">5</span>
+<span id="L26" class="LineNr">26 </span>  <span class="Delimiter">{</span>
+<span id="L27" class="LineNr">27 </span>    compare col, <span class="Constant">0xe</span>
+<span id="L28" class="LineNr">28 </span>    <span class="PreProc">break-if-=</span>
+<span id="L29" class="LineNr">29 </span>    <a href='../103screen.subx.html#L91'>move-cursor-on-screen</a> row, col
+<span id="L30" class="LineNr">30 </span>    <a href='../103screen.subx.html#L122'>print-string-to-screen</a> <span class="Constant">&quot; &quot;</span>
+<span id="L31" class="LineNr">31 </span>    increment row
+<span id="L32" class="LineNr">32 </span>    <a href='../103screen.subx.html#L91'>move-cursor-on-screen</a> row, col
+<span id="L33" class="LineNr">33 </span>    <a href='../103screen.subx.html#L122'>print-string-to-screen</a> <span class="Constant">&quot;_&quot;</span>
+<span id="L34" class="LineNr">34 </span>    decrement row
+<span id="L35" class="LineNr">35 </span>    col <span class="SpecialChar">&lt;-</span> increment
+<span id="L36" class="LineNr">36 </span>    <span class="PreProc">loop</span>
+<span id="L37" class="LineNr">37 </span>  <span class="Delimiter">}</span>
+<span id="L38" class="LineNr">38 </span><span class="Delimiter">}</span>
+<span id="L39" class="LineNr">39 </span>
+<span id="L40" class="LineNr">40 </span><span class="PreProc">type</span> <a href='tile.mu.html#L40'>timespec</a> <span class="Delimiter">{</span>
+<span id="L41" class="LineNr">41 </span>  tv_sec: int
+<span id="L42" class="LineNr">42 </span>  tv_nsec: int
+<span id="L43" class="LineNr">43 </span><span class="Delimiter">}</span>
+<span id="L44" class="LineNr">44 </span>
+<span id="L45" class="LineNr">45 </span><span class="Comment"># prototype wrapper around syscall_nanosleep</span>
+<span id="L46" class="LineNr">46 </span><span class="Comment"># nsecs must be less than 999999999 or 0x3b9ac9ff nanoseconds</span>
+<span id="L47" class="LineNr">47 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='tile.mu.html#L47'>sleep</a></span> secs: int, nsecs: int <span class="Delimiter">{</span>
+<span id="L48" class="LineNr">48 </span>  <span class="PreProc">var</span> t: <a href='tile.mu.html#L40'>timespec</a>
+<span id="L49" class="LineNr">49 </span>  <span class="Comment"># initialize t</span>
+<span id="L50" class="LineNr">50 </span>  <span class="PreProc">var</span> tmp/<span class="Constant">eax</span>: (addr int) <span class="SpecialChar">&lt;-</span> <a href='../081table.subx.html#L26'>get</a> t, tv_sec
+<span id="L51" class="LineNr">51 </span>  <span class="PreProc">var</span> tmp2/<span class="Constant">ecx</span>: int <span class="SpecialChar">&lt;-</span> copy secs
+<span id="L52" class="LineNr">52 </span>  copy-to *tmp, tmp2
+<span id="L53" class="LineNr">53 </span>  tmp <span class="SpecialChar">&lt;-</span> <a href='../081table.subx.html#L26'>get</a> t, tv_nsec
+<span id="L54" class="LineNr">54 </span>  tmp2 <span class="SpecialChar">&lt;-</span> copy nsecs
+<span id="L55" class="LineNr">55 </span>  copy-to *tmp, tmp2
+<span id="L56" class="LineNr">56 </span>  <span class="Comment"># perform the syscall</span>
+<span id="L57" class="LineNr">57 </span>  <span class="PreProc">var</span> t-addr/<span class="Constant">ebx</span>: (addr <a href='tile.mu.html#L40'>timespec</a>) <span class="SpecialChar">&lt;-</span> address t
+<span id="L58" class="LineNr">58 </span>  <span class="PreProc">var</span> rem-addr/<span class="Constant">ecx</span>: (addr <a href='tile.mu.html#L40'>timespec</a>) <span class="SpecialChar">&lt;-</span> copy <span class="Constant">0</span>
+<span id="L59" class="LineNr">59 </span>  syscall_nanosleep
+<span id="L60" class="LineNr">60 </span><span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->