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authorKartik Agaram <vc@akkartik.com>2018-09-07 15:08:54 -0700
committerKartik Agaram <vc@akkartik.com>2018-09-07 15:08:54 -0700
commit608a7fa8d0faf9a3e3d182d9eabe969804443aab (patch)
tree7e1934d9ef0e8372381c306312591235c4f27110 /html/subx/020syscalls.cc.html
parenta6517ed821ff39fa56eb3b975799d22497d78a48 (diff)
downloadmu-608a7fa8d0faf9a3e3d182d9eabe969804443aab.tar.gz
4536
Diffstat (limited to 'html/subx/020syscalls.cc.html')
-rw-r--r--html/subx/020syscalls.cc.html32
1 files changed, 16 insertions, 16 deletions
diff --git a/html/subx/020syscalls.cc.html b/html/subx/020syscalls.cc.html
index c4d39b2e..9b18f151 100644
--- a/html/subx/020syscalls.cc.html
+++ b/html/subx/020syscalls.cc.html
@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="content-type" content="text/html; charset=UTF-8">
 <title>Mu - subx/020syscalls.cc</title>
-<meta name="Generator" content="Vim/7.4">
+<meta name="Generator" content="Vim/8.0">
 <meta name="plugin-version" content="vim7.4_v2">
 <meta name="syntax" content="cpp">
 <meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
@@ -15,14 +15,14 @@ body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color
 a { color:#eeeeee; text-decoration: none; }
 a:hover { text-decoration: underline; }
 * { font-size: 12pt; font-size: 1em; }
+.PreProc { color: #800080; }
+.LineNr { color: #444444; }
 .Constant { color: #00a0a0; }
-.Comment { color: #9090ff; }
-.Comment a { color:#0000ee; text-decoration:underline; }
 .Delimiter { color: #800080; }
-.LineNr { color: #444444; }
 .Identifier { color: #c0a020; }
 .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; }
-.PreProc { color: #800080; }
+.Comment { color: #9090ff; }
+.Comment a { color:#0000ee; text-decoration:underline; }
 .cSpecial { color: #008000; }
 -->
 </style>
@@ -64,9 +64,9 @@ if ('onhashchange' in window) {
 <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>  <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">90</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; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
-<span id="L7" class="LineNr">  7 </span>  <span class="Normal">uint8_t</span> code = <a href='010---vm.cc.html#L214'>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>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <span class="Constant">&quot;Unimplemented interrupt code &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L259'>HEXBYTE</a> &lt;&lt; code &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
+<span id="L7" class="LineNr">  7 </span>  <span class="Normal">uint8_t</span> <a href='031check_operands.cc.html#L14'>code</a> = <a href='010---vm.cc.html#L214'>next</a><span class="Delimiter">();</span>
+<span id="L8" class="LineNr">  8 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='031check_operands.cc.html#L14'>code</a> != <span class="Constant">0x80</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L9" class="LineNr">  9 </span>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <span class="Constant">&quot;Unimplemented interrupt <a href='031check_operands.cc.html#L14'>code</a> &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L259'>HEXBYTE</a> &lt;&lt; <a href='031check_operands.cc.html#L14'>code</a> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
 <span id="L10" class="LineNr"> 10 </span>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <span class="Constant">&quot;  Only `int 80h` supported for now.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L222'>end</a><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>
@@ -78,7 +78,7 @@ if ('onhashchange' in window) {
 <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>Reg[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>Reg[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 <a href='031check_operands.cc.html#L14'>code</a></span><span class="Comment">*/</span>Reg[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>    <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">91</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; Reg[EBX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">' '</span> &lt;&lt; Reg[ECX]<span class="Delimiter">.</span>u &lt;&lt; <span class="Constant">'/'</span> &lt;&lt; <a href='010---vm.cc.html#L123'>mem_addr_string</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">' '</span> &lt;&lt; Reg[EDX]<span class="Delimiter">.</span>u &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
@@ -127,7 +127,7 @@ if ('onhashchange' in window) {
 <span id="L67" class="LineNr"> 67 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[EAX]<span class="Delimiter">.</span>i == -<span class="Constant">1</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; strerror<span class="Delimiter">(</span>errno<span class="Delimiter">)</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
 <span id="L68" class="LineNr"> 68 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L69" class="LineNr"> 69 </span>  <span class="Normal">case</span> <span class="Constant">45</span>:  <span class="Comment">// brk: modify size of data segment</span>
-<span id="L70" class="LineNr"> 70 </span>    <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;grow <a href='011run.cc.html#L118'>data</a> segment to &quot;</span> &lt;&lt; Reg[EBX]<span class="Delimiter">.</span>u &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
+<span id="L70" class="LineNr"> 70 </span>    <a href='003trace.cc.html#L196'>trace</a><span class="Delimiter">(</span><span class="Constant">91</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;grow <a href='011run.cc.html#L122'>data</a> segment to &quot;</span> &lt;&lt; Reg[EBX]<span class="Delimiter">.</span>u &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
 <span id="L71" class="LineNr"> 71 </span>    <a href='020syscalls.cc.html#L99'>resize_mem</a><span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">new <a href='003trace.cc.html#L222'>end</a> address</span><span class="Comment">*/</span>Reg[EBX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span>
 <span id="L72" class="LineNr"> 72 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L73" class="LineNr"> 73 </span>  <span class="Normal">default</span>:
@@ -140,30 +140,30 @@ if ('onhashchange' in window) {
 <span id="L80" class="LineNr"> 80 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L80'>check_flags</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L81" class="LineNr"> 81 </span>  <span class="Normal">uint32_t</span> flags = Reg[reg]<span class="Delimiter">.</span>u<span class="Delimiter">;</span>
 <span id="L82" class="LineNr"> 82 </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="L83" class="LineNr"> 83 </span>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>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.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
+<span id="L83" class="LineNr"> 83 </span>    cerr &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>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.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
 <span id="L84" class="LineNr"> 84 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L85" class="LineNr"> 85 </span>  <span class="Delimiter">}</span>
 <span id="L86" class="LineNr"> 86 </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="L87" class="LineNr"> 87 </span>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>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>.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<span id="L87" class="LineNr"> 87 </span>    cerr &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>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></span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
 <span id="L88" class="LineNr"> 88 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L89" class="LineNr"> 89 </span>  <span class="Delimiter">}</span>
 <span id="L90" class="LineNr"> 90 </span><span class="Delimiter">}</span>
 <span id="L91" class="LineNr"> 91 </span>
 <span id="L92" class="LineNr"> 92 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L92'>check_mode</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='010---vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L93" class="LineNr"> 93 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>Reg[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="L94" class="LineNr"> 94 </span>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>EIP</a> &lt;&lt; <span class="Constant">&quot;: SubX is oblivious to file permissions; register &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L23'>reg</a> &lt;&lt; <span class="Constant">&quot; must be 0.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
+<span id="L94" class="LineNr"> 94 </span>    cerr &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>EIP</a> &lt;&lt; <span class="Constant">&quot;: SubX is oblivious to file permissions; register &quot;</span> &lt;&lt; <a href='010---vm.cc.html#L23'>reg</a> &lt;&lt; <span class="Constant">&quot; must be 0.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
 <span id="L95" class="LineNr"> 95 </span>    exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
 <span id="L96" class="LineNr"> 96 </span>  <span class="Delimiter">}</span>
 <span id="L97" class="LineNr"> 97 </span><span class="Delimiter">}</span>
 <span id="L98" class="LineNr"> 98 </span>
 <span id="L99" class="LineNr"> 99 </span><span class="Normal">void</span> <a href='020syscalls.cc.html#L99'>resize_mem</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> new_end_address<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L100" class="LineNr">100 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>new_end_address &lt; <a href='010---vm.cc.html#L94'>Mem_offset</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L100" class="LineNr">100 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>new_end_address &lt; Mem_offset<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L101" class="LineNr">101 </span>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>EIP</a> &lt;&lt; <span class="Constant">&quot;: can't shrink data segment to before code segment</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
 <span id="L102" class="LineNr">102 </span>    <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L103" class="LineNr">103 </span>  <span class="Delimiter">}</span>
-<span id="L104" class="LineNr">104 </span>  <span class="Normal">int32_t</span> new_size = new_end_address - <a href='010---vm.cc.html#L94'>Mem_offset</a><span class="Delimiter">;</span>
+<span id="L104" class="LineNr">104 </span>  <span class="Normal">int32_t</span> new_size = new_end_address - Mem_offset<span class="Delimiter">;</span>
 <span id="L105" class="LineNr">105 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>new_size &lt; <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L106" class="LineNr">106 </span>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>EIP</a> &lt;&lt; <span class="Constant">&quot;: shrinking <a href='011run.cc.html#L118'>data</a> segment is not supported.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
+<span id="L106" class="LineNr">106 </span>    <a href='003trace.cc.html#L203'>raise</a> &lt;&lt; <a href='010---vm.cc.html#L260'>HEXWORD</a> &lt;&lt; <a href='010---vm.cc.html#L29'>EIP</a> &lt;&lt; <span class="Constant">&quot;: shrinking <a href='011run.cc.html#L122'>data</a> segment is not supported.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L222'>end</a><span class="Delimiter">();</span>
 <span id="L107" class="LineNr">107 </span>    <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L108" class="LineNr">108 </span>  <span class="Delimiter">}</span>
 <span id="L109" class="LineNr">109 </span>  <a href='010---vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span>new_size<span class="Delimiter">);</span>  <span class="Comment">// will throw exception on failure</span>