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authorKartik K. Agaram <vc@akkartik.com>2015-05-06 00:19:03 -0700
committerKartik K. Agaram <vc@akkartik.com>2015-05-06 00:19:03 -0700
commit672e3e50c6ed6de161e40aa256c3fc0f2b1f7cf9 (patch)
tree5fa3d82e40137b15dec2941a3446e838ce43d3e5 /html/031address.cc.html
parent20d1c9057a559ce8db83bbc2787ca91348bcb16f (diff)
downloadmu-672e3e50c6ed6de161e40aa256c3fc0f2b1f7cf9.tar.gz
1279 - colorized rendering of the source files
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+<!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>~/Desktop/s/mu/031address.cc.html</title>
+<meta name="Generator" content="Vim/7.4">
+<meta name="plugin-version" content="vim7.4_v1">
+<meta name="syntax" content="cpp">
+<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
+<meta name="colorscheme" content="minimal">
+<style type="text/css">
+<!--
+pre { white-space: pre-wrap; font-family: monospace; color: #d0d0d0; background-color: #000000; }
+body { font-family: monospace; color: #d0d0d0; background-color: #000000; }
+* { font-size: 1em; }
+.CommentedCode { color: #6c6c6c; }
+.SalientComment { color: #00ffff; }
+.Constant { color: #008080; }
+.Comment { color: #8080ff; }
+.Delimiter { color: #c000c0; }
+.Special { color: #ff6060; }
+.Identifier { color: #008080; }
+.traceContains { color: #008000; }
+-->
+</style>
+
+<script type='text/javascript'>
+<!--
+
+-->
+</script>
+</head>
+<body>
+<pre id='vimCodeElement'>
+<span class="Comment">//: Instructions can read from addresses pointing at other locations using the</span>
+<span class="Comment">//: 'deref' property.</span>
+
+<span class="Delimiter">:(scenario copy_indirect)</span>
+recipe main [
+  <span class="Constant">1</span>:address:integer<span class="Special"> &lt;- </span>copy <span class="Constant">2</span>:literal
+  <span class="Constant">2</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
+  <span class="Comment"># This loads location 1 as an address and looks up *that* location.</span>
+  <span class="Constant">3</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>:address:integer/deref
+]
+<span class="traceContains">+run: instruction main/2</span>
+<span class="traceContains">+mem: location 1 is 2</span>
+<span class="traceContains">+mem: location 2 is 34</span>
+<span class="traceContains">+mem: storing 34 in location 3</span>
+
+<span class="Delimiter">:(before &quot;index_t base = x.value&quot; following &quot;vector&lt;long long int&gt; read_memory(reagent x)&quot;)</span>
+x = canonize<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
+
+<span class="Comment">//: similarly, write to addresses pointing at other locations using the</span>
+<span class="Comment">//: 'deref' property</span>
+<span class="Delimiter">:(scenario store_indirect)</span>
+recipe main [
+  <span class="Constant">1</span>:address:integer<span class="Special"> &lt;- </span>copy <span class="Constant">2</span>:literal
+  <span class="Constant">1</span>:address:integer/deref<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
+]
+<span class="traceContains">+run: instruction main/1</span>
+<span class="traceContains">+mem: location 1 is 2</span>
+<span class="traceContains">+mem: storing 34 in location 2</span>
+
+<span class="Delimiter">:(before &quot;index_t base = x.value&quot; following &quot;void write_memory(reagent x, vector&lt;long long int&gt; data)&quot;)</span>
+x = canonize<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
+
+<span class="Delimiter">:(code)</span>
+reagent canonize<span class="Delimiter">(</span>reagent x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>isa_literal<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span> x<span class="Delimiter">;</span>
+<span class="CommentedCode">//?   cout &lt;&lt; &quot;canonize\n&quot;; //? 1</span>
+  reagent r = x<span class="Delimiter">;</span>
+<span class="CommentedCode">//?   cout &lt;&lt; x.to_string() &lt;&lt; &quot; =&gt; &quot; &lt;&lt; r.to_string() &lt;&lt; '\n'; //? 1</span>
+  while <span class="Delimiter">(</span>has_property<span class="Delimiter">(</span>r<span class="Delimiter">,</span> <span class="Constant">&quot;deref&quot;</span><span class="Delimiter">))</span>
+    r = deref<span class="Delimiter">(</span>r<span class="Delimiter">);</span>
+  <span class="Identifier">return</span> r<span class="Delimiter">;</span>
+<span class="Delimiter">}</span>
+
+reagent deref<span class="Delimiter">(</span>reagent x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span class="CommentedCode">//?   cout &lt;&lt; &quot;deref: &quot; &lt;&lt; x.to_string() &lt;&lt; &quot;\n&quot;; //? 2</span>
+  static const type_number ADDRESS = Type_number[<span class="Constant">&quot;address&quot;</span>]<span class="Delimiter">;</span>
+  reagent result<span class="Delimiter">;</span>
+  assert<span class="Delimiter">(</span>x<span class="Delimiter">.</span>types[<span class="Constant">0</span>] == ADDRESS<span class="Delimiter">);</span>
+
+  <span class="Comment">// compute value</span>
+  result<span class="Delimiter">.</span>set_value<span class="Delimiter">(</span>Memory[x<span class="Delimiter">.</span>value]<span class="Delimiter">);</span>
+  trace<span class="Delimiter">(</span><span class="Constant">&quot;mem&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;location &quot;</span> &lt;&lt; x<span class="Delimiter">.</span>value &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
+
+  <span class="Comment">// populate types</span>
+  copy<span class="Delimiter">(</span>++x<span class="Delimiter">.</span>types<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> x<span class="Delimiter">.</span>types<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>result<span class="Delimiter">.</span>types<span class="Delimiter">,</span> result<span class="Delimiter">.</span>types<span class="Delimiter">.</span>begin<span class="Delimiter">()));</span>
+
+  <span class="Comment">// drop-one 'deref'</span>
+  index_t i = <span class="Constant">0</span><span class="Delimiter">;</span>
+  size_t len = x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>size<span class="Delimiter">();</span>
+  for <span class="Delimiter">(</span>i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; len<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties[i]<span class="Delimiter">.</span>first == <span class="Constant">&quot;deref&quot;</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+    result<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties[i]<span class="Delimiter">);</span>
+  <span class="Delimiter">}</span>
+  ++i<span class="Delimiter">;</span>  <span class="Comment">// skip first deref</span>
+  for <span class="Delimiter">(;</span> i &lt; len<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    result<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties[i]<span class="Delimiter">);</span>
+  <span class="Delimiter">}</span>
+  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
+<span class="Delimiter">}</span>
+
+<span class="SalientComment">//:: 'get' can read from container address</span>
+<span class="Delimiter">:(scenario get_indirect)</span>
+recipe main [
+  <span class="Constant">1</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">2</span>:literal
+  <span class="Constant">2</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
+  <span class="Constant">3</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
+  <span class="Constant">4</span>:integer<span class="Special"> &lt;- </span>get <span class="Constant">1</span>:address:point/deref<span class="Delimiter">,</span> <span class="Constant">0</span>:offset
+]
+<span class="traceContains">+run: instruction main/3</span>
+<span class="traceContains">+run: address to copy is 2</span>
+<span class="traceContains">+run: product 0 is 34</span>
+<span class="traceContains">+mem: storing 34 in location 4</span>
+
+<span class="Delimiter">:(scenario include_nonderef_properties)</span>
+recipe main [
+  <span class="Constant">1</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">2</span>:literal
+  <span class="Constant">2</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
+  <span class="Constant">3</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
+  <span class="Constant">4</span>:integer<span class="Special"> &lt;- </span>get <span class="Constant">1</span>:address:point/deref/foo<span class="Delimiter">,</span> <span class="Constant">0</span>:offset
+]
+<span class="traceContains">+run: instruction main/3</span>
+<span class="traceContains">+run: address to copy is 2</span>
+<span class="traceContains">+run: product 0 is 34</span>
+<span class="traceContains">+mem: storing 34 in location 4</span>
+
+<span class="Delimiter">:(after &quot;reagent base = &quot; following &quot;case GET:&quot;)</span>
+base = canonize<span class="Delimiter">(</span>base<span class="Delimiter">);</span>
+
+<span class="Delimiter">:(scenario get_address_indirect)</span>
+<span class="Comment"># 'get' can read from container address</span>
+recipe main [
+  <span class="Constant">1</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">2</span>:literal
+  <span class="Constant">2</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
+  <span class="Constant">3</span>:integer<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
+  <span class="Constant">4</span>:integer<span class="Special"> &lt;- </span>get-address <span class="Constant">1</span>:address:point/deref<span class="Delimiter">,</span> <span class="Constant">0</span>:offset
+]
+<span class="traceContains">+run: instruction main/3</span>
+<span class="traceContains">+run: address to copy is 2</span>
+<span class="traceContains">+run: product 0 is 2</span>
+
+<span class="Delimiter">:(after &quot;reagent base = &quot; following &quot;case GET_ADDRESS:&quot;)</span>
+base = canonize<span class="Delimiter">(</span>base<span class="Delimiter">);</span>
+
+<span class="SalientComment">//:: helpers</span>
+
+<span class="Delimiter">:(code)</span>
+bool has_property<span class="Delimiter">(</span>reagent x<span class="Delimiter">,</span> string name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties[i]<span class="Delimiter">.</span>first == name<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
+  <span class="Delimiter">}</span>
+  <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
+<span class="Delimiter">}</span>
+
+vector&lt;string&gt; property<span class="Delimiter">(</span>const reagent&amp; r<span class="Delimiter">,</span> const string&amp; name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  for <span class="Delimiter">(</span>index_t p = <span class="Constant">0</span><span class="Delimiter">;</span> p != r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>r<span class="Delimiter">.</span>properties[p]<span class="Delimiter">.</span>first == name<span class="Delimiter">)</span>
+      <span class="Identifier">return</span> r<span class="Delimiter">.</span>properties[p]<span class="Delimiter">.</span>second<span class="Delimiter">;</span>
+  <span class="Delimiter">}</span>
+  <span class="Identifier">return</span> vector&lt;string&gt;<span class="Delimiter">();</span>
+<span class="Delimiter">}</span>
+</pre>
+</body>
+</html>
+<!-- vim: set foldmethod=manual : -->