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<a href='https://github.com/akkartik/mu/blob/master/subx/002test.cc'>https://github.com/akkartik/mu/blob/master/subx/002test.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr">  1 </span><span class="Comment">//: A simple test harness. To create new tests, define functions starting with</span>
<span id="L2" class="LineNr">  2 </span><span class="Comment">//: 'test_'. To run all tests so defined, run:</span>
<span id="L3" class="LineNr">  3 </span><span class="Comment">//:   $ ./mu test</span>
<span id="L4" class="LineNr">  4 </span><span class="Comment">//:</span>
<span id="L5" class="LineNr">  5 </span><span class="Comment">//: Every layer should include tests, and can reach into previous layers.</span>
<span id="L6" class="LineNr">  6 </span><span class="Comment">//: However, it seems like a good idea never to reach into tests from previous</span>
<span id="L7" class="LineNr">  7 </span><span class="Comment">//: layers. Every test should be a contract that always passes as originally</span>
<span id="L8" class="LineNr">  8 </span><span class="Comment">//: written, regardless of any later layers. Avoid writing 'temporary' tests</span>
<span id="L9" class="LineNr">  9 </span><span class="Comment">//: that are only meant to work until some layer.</span>
<span id="L10" class="LineNr"> 10 </span>
<span id="L11" class="LineNr"> 11 </span><span class="Delimiter">:(before &quot;End Types&quot;)</span>
<span id="L12" class="LineNr"> 12 </span><span class="Normal">typedef</span> <span class="Normal">void</span> <span class="Delimiter">(</span>*test_fn<span class="Delimiter">)(</span><span class="Normal">void</span><span class="Delimiter">);</span>
<span id="L13" class="LineNr"> 13 </span><span class="Delimiter">:(before &quot;Globals&quot;)</span>
<span id="L14" class="LineNr"> 14 </span><span class="Comment">// move a global ahead into types that we can't generate an extern declaration for</span>
<span id="L15" class="LineNr"> 15 </span><span class="Normal">const</span> <a href='002test.cc.html#L12'>test_fn</a> <span class="Special"><a href='002test.cc.html#L15'>Tests</a></span>[] = <span class="Delimiter">{</span>
<span id="L16" class="LineNr"> 16 </span>  <span class="PreProc">#include </span><span class="Constant">&quot;test_list&quot;</span>  <span class="Comment">// auto-generated; see 'build*' scripts</span>
<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">};</span>
<span id="L18" class="LineNr"> 18 </span>
<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
<span id="L20" class="LineNr"> 20 </span><span class="Normal">bool</span> <span class="Special"><a href='002test.cc.html#L20'>Run_tests</a></span> = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L21" class="LineNr"> 21 </span><span class="Normal">bool</span> <span class="Special"><a href='002test.cc.html#L21'>Passed</a></span> = <span class="Constant">true</span><span class="Delimiter">;</span>  <span class="Comment">// set this to false inside any test to indicate failure</span>
<span id="L22" class="LineNr"> 22 </span>
<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
<span id="L24" class="LineNr"> 24 </span><span class="PreProc">#define CHECK(</span><span class="Special">X</span><span class="PreProc">) \</span>
<span id="L25" class="LineNr"> 25 </span><span class="PreProc">  </span><span class="Normal">if</span><span class="PreProc"> (</span><span class="Special"><a href='002test.cc.html#L21'>Passed</a></span><span class="PreProc"> &amp;&amp; !(</span><span class="Special">X</span><span class="PreProc">)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
<span id="L26" class="LineNr"> 26 </span><span class="PreProc">    cerr &lt;&lt; </span><span class="Constant">&quot;\nF - &quot;</span><span class="PreProc"> &lt;&lt; __FUNCTION__ &lt;&lt; </span><span class="Constant">&quot;(&quot;</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">__FILE__</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot;:&quot;</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">__LINE__</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot;): &quot;</span><span class="PreProc"> &lt;&lt; #</span><span class="Special">X</span><span class="PreProc"> &lt;&lt; </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span id="L27" class="LineNr"> 27 </span><span class="PreProc">    </span><span class="Special"><a href='002test.cc.html#L21'>Passed</a></span><span class="PreProc"> = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span id="L28" class="LineNr"> 28 </span><span class="PreProc">    </span><span class="Identifier">return</span><span class="Delimiter">;</span><span class="PreProc">  </span><span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span><span class="PreProc"> \</span>
<span id="L29" class="LineNr"> 29 </span><span class="PreProc">  </span><span class="Delimiter">}</span>
<span id="L30" class="LineNr"> 30 </span>
<span id="L31" class="LineNr"> 31 </span><span class="PreProc">#define CHECK_EQ(</span><span class="Special">X</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Special">Y</span><span class="PreProc">) \</span>
<span id="L32" class="LineNr"> 32 </span><span class="PreProc">  </span><span class="Normal">if</span><span class="PreProc"> (</span><span class="Special"><a href='002test.cc.html#L21'>Passed</a></span><span class="PreProc"> &amp;&amp; (</span><span class="Special">X</span><span class="PreProc">) != (</span><span class="Special">Y</span><span class="PreProc">)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span>
<span id="L33" class="LineNr"> 33 </span><span class="PreProc">    cerr &lt;&lt; </span><span class="Constant">&quot;\nF - &quot;</span><span class="PreProc"> &lt;&lt; __FUNCTION__ &lt;&lt; </span><span class="Constant">&quot;(&quot;</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">__FILE__</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot;:&quot;</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">__LINE__</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot;): &quot;</span><span class="PreProc"> &lt;&lt; #</span><span class="Special">X</span><span class="PreProc"> &lt;&lt; </span><span class="Constant">&quot; == &quot;</span><span class="PreProc"> &lt;&lt; #</span><span class="Special">Y</span><span class="PreProc"> &lt;&lt; </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span id="L34" class="LineNr"> 34 </span><span class="PreProc">    cerr &lt;&lt; </span><span class="Constant">&quot;  got &quot;</span><span class="PreProc"> &lt;&lt; (</span><span class="Special">X</span><span class="PreProc">) &lt;&lt; </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc">  </span><span class="Comment">/*</span><span class="Comment"> BEWARE: multiple eval </span><span class="Comment">*/</span><span class="PreProc"> \</span>
<span id="L35" class="LineNr"> 35 </span><span class="PreProc">    </span><span class="Special"><a href='002test.cc.html#L21'>Passed</a></span><span class="PreProc"> = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</span>
<span id="L36" class="LineNr"> 36 </span><span class="PreProc">    </span><span class="Identifier">return</span><span class="Delimiter">;</span><span class="PreProc">  </span><span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span><span class="PreProc"> \</span>
<span id="L37" class="LineNr"> 37 </span><span class="PreProc">  </span><span class="Delimiter">}</span>
<span id="L38" class="LineNr"> 38 </span>
<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">:(before &quot;End Reset&quot;)</span>
<span id="L40" class="LineNr"> 40 </span><span class="Special"><a href='002test.cc.html#L21'>Passed</a></span> = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L41" class="LineNr"> 41 </span>
<span id="L42" class="LineNr"> 42 </span><span class="Delimiter">:(before &quot;End Commandline Parsing&quot;)</span>
<span id="L43" class="LineNr"> 43 </span><span class="Normal">if</span> <span class="Delimiter">(</span>argc &gt; <span class="Constant">1</span> &amp;&amp; <a href='001help.cc.html#L98'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">&quot;test&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L44" class="LineNr"> 44 </span>  <span class="Special"><a href='002test.cc.html#L20'>Run_tests</a></span> = <span class="Constant">true</span><span class="Delimiter">;</span>  --argc<span class="Delimiter">;</span>  ++argv<span class="Delimiter">;</span>  <span class="Comment">// shift 'test' out of commandline args</span>
<span id="L45" class="LineNr"> 45 </span><span class="Delimiter">}</span>
<span id="L46" class="LineNr"> 46 </span>
<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">:(before &quot;End Main&quot;)</span>
<span id="L48" class="LineNr"> 48 </span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L20'>Run_tests</a></span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L49" class="LineNr"> 49 </span>  <span class="Comment">// Test Runs</span>
<span id="L50" class="LineNr"> 50 </span>  <span class="Comment">// we run some tests and then exit; assume no state need be maintained afterward</span>
<span id="L51" class="LineNr"> 51 </span>
<span id="L52" class="LineNr"> 52 </span>  <span class="Normal">long</span> num_failures = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L53" class="LineNr"> 53 </span>  <span class="Comment">// End Test Run Initialization</span>
<span id="L54" class="LineNr"> 54 </span>  <span class="Normal">time_t</span> t<span class="Delimiter">;</span>  time<span class="Delimiter">(</span>&amp;t<span class="Delimiter">);</span>
<span id="L55" class="LineNr"> 55 </span>  cerr &lt;&lt; <span class="Constant">&quot;C tests: &quot;</span> &lt;&lt; ctime<span class="Delimiter">(</span>&amp;t<span class="Delimiter">);</span>
<span id="L56" class="LineNr"> 56 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i=<span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L15'>Tests</a></span><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L15'>Tests</a></span>[<span class="Constant">0</span>]<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L57" class="LineNr"> 57 </span><span class="CommentedCode">//?     cerr &lt;&lt; &quot;running &quot; &lt;&lt; Test_names[i] &lt;&lt; '\n';</span>
<span id="L58" class="LineNr"> 58 </span>    <a href='002test.cc.html#L81'>run_test</a><span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L59" class="LineNr"> 59 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L21'>Passed</a></span><span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">'.'</span><span class="Delimiter">;</span>
<span id="L60" class="LineNr"> 60 </span>    <span class="Normal">else</span> ++num_failures<span class="Delimiter">;</span>
<span id="L61" class="LineNr"> 61 </span>  <span class="Delimiter">}</span>
<span id="L62" class="LineNr"> 62 </span>  cerr &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L63" class="LineNr"> 63 </span>  <span class="Comment">// End Tests</span>
<span id="L64" class="LineNr"> 64 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>num_failures &gt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L65" class="LineNr"> 65 </span>    cerr &lt;&lt; num_failures &lt;&lt; <span class="Constant">&quot; failure&quot;</span>
<span id="L66" class="LineNr"> 66 </span>         &lt;&lt; <span class="Delimiter">(</span>num_failures &gt; <span class="Constant">1</span> ? <span class="Constant">&quot;s&quot;</span> : <span class="Constant">&quot;&quot;</span><span class="Delimiter">)</span>
<span id="L67" class="LineNr"> 67 </span>         &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L68" class="LineNr"> 68 </span>    <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L69" class="LineNr"> 69 </span>  <span class="Delimiter">}</span>
<span id="L70" class="LineNr"> 70 </span>  <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L71" class="LineNr"> 71 </span><span class="Delimiter">}</span>
<span id="L72" class="LineNr"> 72 </span>
<span id="L73" class="LineNr"> 73 </span><span class="Delimiter">:(after &quot;End Main&quot;)</span>
<span id="L74" class="LineNr"> 74 </span><span class="Comment">//: Raise other unrecognized sub-commands as errors.</span>
<span id="L75" class="LineNr"> 75 </span><span class="Comment">//: We couldn't do this until now because we want `./subx test` to always</span>
<span id="L76" class="LineNr"> 76 </span><span class="Comment">//: succeed, no matter how many layers are included in the build.</span>
<span id="L77" class="LineNr"> 77 </span>cerr &lt;&lt; <span class="Constant">&quot;nothing to do\n&quot;</span><span class="Delimiter">;</span>
<span id="L78" class="LineNr"> 78 </span><span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L79" class="LineNr"> 79 </span>
<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(code)</span>
<span id="L81" class="LineNr"> 81 </span><span class="Normal">void</span> <a href='002test.cc.html#L81'>run_test</a><span class="Delimiter">(</span><span class="Normal">size_t</span> i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L82" class="LineNr"> 82 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>i &gt;= <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L15'>Tests</a></span><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L15'>Tests</a></span>[<span class="Constant">0</span>]<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L83" class="LineNr"> 83 </span>    cerr &lt;&lt; <span class="Constant">&quot;no test &quot;</span> &lt;&lt; i &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L84" class="LineNr"> 84 </span>    <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L85" class="LineNr"> 85 </span>  <span class="Delimiter">}</span>
<span id="L86" class="LineNr"> 86 </span>  <a href='000organization.cc.html#L148'>reset</a><span class="Delimiter">();</span>
<span id="L87" class="LineNr"> 87 </span>  <span class="Comment">// End Test Setup</span>
<span id="L88" class="LineNr"> 88 </span>  <span class="Delimiter">(</span>*<span class="Special"><a href='002test.cc.html#L15'>Tests</a></span>[i]<span class="Delimiter">)();</span>
<span id="L89" class="LineNr"> 89 </span>  <span class="Comment">// End Test Teardown</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="Comment">//: Convenience: run a single test</span>
<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">:(before &quot;Globals&quot;)</span>
<span id="L94" class="LineNr"> 94 </span><span class="Comment">// Names for each element of the 'Tests' global, respectively.</span>
<span id="L95" class="LineNr"> 95 </span><span class="Normal">const</span> string <span class="Special"><a href='002test.cc.html#L95'>Test_names</a></span>[] = <span class="Delimiter">{</span>
<span id="L96" class="LineNr"> 96 </span>  <span class="PreProc">#include </span><span class="Constant">&quot;test_name_list&quot;</span>  <span class="Comment">// auto-generated; see 'build*' scripts</span>
<span id="L97" class="LineNr"> 97 </span><span class="Delimiter">};</span>
<span id="L98" class="LineNr"> 98 </span><span class="Delimiter">:(after &quot;Test Runs&quot;)</span>
<span id="L99" class="LineNr"> 99 </span>string <a href='002test.cc.html#L99'>maybe_single_test_to_run</a> = argv[argc-<span class="Constant">1</span>]<span class="Delimiter">;</span>
<span id="L100" class="LineNr">100 </span><span class="Normal">if</span> <span class="Delimiter">(</span>!starts_with<span class="Delimiter">(</span><a href='002test.cc.html#L99'>maybe_single_test_to_run</a><span class="Delimiter">,</span> <span class="Constant">&quot;test_&quot;</span><span class="Delimiter">))</span>
<span id="L101" class="LineNr">101 </span>  <a href='002test.cc.html#L99'>maybe_single_test_to_run</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">&quot;test_&quot;</span><span class="Delimiter">);</span>
<span id="L102" class="LineNr">102 </span><span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">size_t</span> i=<span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L15'>Tests</a></span><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L15'>Tests</a></span>[<span class="Constant">0</span>]<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L103" class="LineNr">103 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L95'>Test_names</a></span>[i] == <a href='002test.cc.html#L99'>maybe_single_test_to_run</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L104" class="LineNr">104 </span>    <a href='002test.cc.html#L81'>run_test</a><span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L105" class="LineNr">105 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special"><a href='002test.cc.html#L21'>Passed</a></span><span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">&quot;.\n&quot;</span><span class="Delimiter">;</span>
<span id="L106" class="LineNr">106 </span>    <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L107" class="LineNr">107 </span>  <span class="Delimiter">}</span>
<span id="L108" class="LineNr">108 </span><span class="Delimiter">}</span>
<span id="L109" class="LineNr">109 </span>
<span id="L110" class="LineNr">110 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
<span id="L111" class="LineNr">111 </span><span class="PreProc">#include </span><span class="Constant">&lt;stdlib.h&gt;</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
e ESI with ECX</span> <span id="L168" class="LineNr">168 </span> 7d/jump-if-greater-or-equal $_buffer-4:end/disp8 <span id="L169" class="LineNr">169 </span> <span class="subxComment"># if (out &gt;= outend) break # for now silently ignore filled up buffer</span> <span id="L170" class="LineNr">170 </span> 39/compare 3/mod/direct 7/rm32/EDI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/EDX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare EDI with EDX</span> <span id="L171" class="LineNr">171 </span> 7d/jump-if-greater-or-equal $_buffer-4:end/disp8 <span id="L172" class="LineNr">172 </span> <span class="subxComment"># *out = *in</span> <span id="L173" class="LineNr">173 </span> 8a/copy-byte 0/mod/indirect 6/rm32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/BL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at *ESI to BL</span> <span id="L174" class="LineNr">174 </span> 88/copy-byte 0/mod/indirect 7/rm32/EDI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/BL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at BL to *EDI</span> <span id="L175" class="LineNr">175 </span> <span class="subxComment"># ++num_bytes_buffered</span> <span id="L176" class="LineNr">176 </span> 40/increment-EAX <span id="L177" class="LineNr">177 </span> <span class="subxComment"># ++in</span> <span id="L178" class="LineNr">178 </span> 46/increment-ESI <span id="L179" class="LineNr">179 </span> <span class="subxComment"># ++out</span> <span id="L180" class="LineNr">180 </span> 47/increment-EDI <span id="L181" class="LineNr">181 </span> eb/jump $_buffer-4:loop/disp8 <span id="L182" class="LineNr">182 </span><span class="Constant">$_buffer-4:end</span>: <span id="L183" class="LineNr">183 </span> <span class="subxS1Comment"># . restore registers</span> <span id="L184" class="LineNr">184 </span> 5f/pop-to-EDI <span id="L185" class="LineNr">185 </span> 5e/pop-to-ESI <span id="L186" class="LineNr">186 </span> 5b/pop-to-EBX <span id="L187" class="LineNr">187 </span> 5a/pop-to-EDX <span id="L188" class="LineNr">188 </span> 59/pop-to-ECX <span id="L189" class="LineNr">189 </span> <span class="subxS1Comment"># . epilog</span> <span id="L190" class="LineNr">190 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy EBP to ESP</span> <span id="L191" class="LineNr">191 </span> 5d/pop-to-EBP <span id="L192" class="LineNr">192 </span> c3/return <span id="L193" class="LineNr">193 </span> <span id="L194" class="LineNr">194 </span> <span id="L195" class="LineNr">195 </span><span class="subxComment"># idea: a clear-if-empty method on streams that clears only if f-&gt;read == f-&gt;write</span> <span id="L196" class="LineNr">196 </span><span class="subxComment"># Unclear how I'd use it, though. Callers seem to need the check anyway.</span> <span id="L197" class="LineNr">197 </span><span class="subxComment"># Maybe a better helper would be 'empty-stream?'</span> <span id="L198" class="LineNr">198 </span> <span id="L199" class="LineNr">199 </span><span class="subxMinorFunction">_read</span>: <span class="subxComment"># fd : int, s : (address stream) -&gt; num-bytes-read/EAX</span> <span id="L200" class="LineNr">200 </span> <span class="subxS1Comment"># . prolog</span> <span id="L201" class="LineNr">201 </span> 55/push-EBP <span id="L202" class="LineNr">202 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ESP to EBP</span> <span id="L203" class="LineNr">203 </span> <span class="subxS1Comment"># . save registers</span> <span id="L204" class="LineNr">204 </span> 51/push-ECX <span id="L205" class="LineNr">205 </span> 52/push-EDX <span id="L206" class="LineNr">206 </span> 53/push-EBX <span id="L207" class="LineNr">207 </span> 56/push-ESI <span id="L208" class="LineNr">208 </span> <span class="subxComment"># ESI = s</span> <span id="L209" class="LineNr">209 </span> 8b/copy 1/mod/*+disp8 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/ESI 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(EBP+12) to ESI</span> <span id="L210" class="LineNr">210 </span> <span class="subxComment"># EAX = s-&gt;write</span> <span id="L211" class="LineNr">211 </span> 8b/copy 0/mod/indirect 6/rm32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/EAX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy *ESI to EAX</span> <span id="L212" class="LineNr">212 </span> <span class="subxComment"># EDX = s-&gt;length</span> <span id="L213" class="LineNr">213 </span> 8b/copy 1/mod/*+disp8 6/rm32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/EDX 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(ESI+8) to EDX</span> <span id="L214" class="LineNr">214 </span> <span class="subxComment"># syscall(read, fd, &amp;s-&gt;data[s-&gt;write], s-&gt;length - s-&gt;write)</span> <span id="L215" class="LineNr">215 </span> <span class="subxS2Comment"># . . fd : EBX</span> <span id="L216" class="LineNr">216 </span> 8b/copy 1/mod/*+disp8 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/EBX 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(EBP+8) to EBX</span> <span id="L217" class="LineNr">217 </span> <span class="subxS2Comment"># . . data : ECX = &amp;s-&gt;data[s-&gt;write]</span> <span id="L218" class="LineNr">218 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/ESI 0/index/EAX <span class="Normal"> . </span> 1/r32/ECX 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy ESI+EAX+12 to ECX</span> <span id="L219" class="LineNr">219 </span> <span class="subxS2Comment"># . . size : EDX = s-&gt;length - s-&gt;write</span> <span id="L220" class="LineNr">220 </span> 29/subtract 3/mod/direct 2/rm32/EDX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/EAX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># subtract EAX from EDX</span> <span id="L221" class="LineNr">221 </span> <span class="subxS2Comment"># . . syscall</span> <span id="L222" class="LineNr">222 </span> b8/copy-to-EAX 3/imm32/read <span id="L223" class="LineNr">223 </span> cd/syscall 0x80/imm8 <span id="L224" class="LineNr">224 </span> <span class="subxComment"># add the result EAX to s-&gt;write</span> <span id="L225" class="LineNr">225 </span> 01/add 0/mod/indirect 6/rm32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/EAX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># add EAX to *ESI</span> <span id="L226" class="LineNr">226 </span><span class="Constant">$_read:end</span>: <span id="L227" class="LineNr">227 </span> <span class="subxS1Comment"># . restore registers</span> <span id="L228" class="LineNr">228 </span> 5e/pop-to-ESI <span id="L229" class="LineNr">229 </span> 5b/pop-to-EBX <span id="L230" class="LineNr">230 </span> 5a/pop-to-EDX <span id="L231" class="LineNr">231 </span> 59/pop-to-ECX <span id="L232" class="LineNr">232 </span> <span class="subxS1Comment"># . epilog</span> <span id="L233" class="LineNr">233 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy EBP to ESP</span> <span id="L234" class="LineNr">234 </span> 5d/pop-to-EBP <span id="L235" class="LineNr">235 </span> c3/return <span id="L236" class="LineNr">236 </span> <span id="L237" class="LineNr">237 </span> <span class="subxComment"># Two options:</span> <span id="L238" class="LineNr">238 </span> <span class="subxComment"># 1 (what we have above):</span> <span id="L239" class="LineNr">239 </span> <span class="subxComment"># ECX = s</span> <span id="L240" class="LineNr">240 </span> <span class="subxComment"># EAX = s-&gt;write</span> <span id="L241" class="LineNr">241 </span> <span class="subxComment"># EDX = s-&gt;length</span> <span id="L242" class="LineNr">242 </span> <span class="subxComment"># # syscall</span> <span id="L243" class="LineNr">243 </span> <span class="subxComment"># ECX = lea ECX+EAX+12</span> <span id="L244" class="LineNr">244 </span> <span class="subxComment"># EDX = sub EDX EAX</span> <span id="L245" class="LineNr">245 </span> <span class="subxComment">#</span> <span id="L246" class="LineNr">246 </span> <span class="subxComment"># 2:</span> <span id="L247" class="LineNr">247 </span> <span class="subxComment"># ECX = s</span> <span id="L248" class="LineNr">248 </span> <span class="subxComment"># EDX = s-&gt;length</span> <span id="L249" class="LineNr">249 </span> <span class="subxComment"># ECX = &amp;s-&gt;data</span> <span id="L250" class="LineNr">250 </span> <span class="subxComment"># # syscall</span> <span id="L251" class="LineNr">251 </span> <span class="subxComment"># ECX = add ECX, s-&gt;write</span> <span id="L252" class="LineNr">252 </span> <span class="subxComment"># EDX = sub EDX, s-&gt;write</span> <span id="L253" class="LineNr">253 </span> <span class="subxComment">#</span> <span id="L254" class="LineNr">254 </span> <span class="subxComment"># Not much to choose between the two? Option 2 performs a duplicate load to</span> <span id="L255" class="LineNr">255 </span> <span class="subxComment"># use one less register, but doesn't increase the amount of spilling (ECX</span> <span id="L256" class="LineNr">256 </span> <span class="subxComment"># and EDX must be used, and EAX must be clobbered anyway).</span> <span id="L257" class="LineNr">257 </span> <span id="L258" class="LineNr">258 </span><span class="subxH1Comment"># - tests</span> <span id="L259" class="LineNr">259 </span> <span id="L260" class="LineNr">260 </span><span class="subxTest">test-read-single</span>: <span id="L261" class="LineNr">261 </span> <span class="subxH1Comment"># - write a single character into _test-stream, then read from it</span> <span id="L262" class="LineNr">262 </span> <span class="subxComment"># clear-stream(_test-stream)</span> <span id="L263" class="LineNr">263 </span> <span class="subxS2Comment"># . . push args</span> <span id="L264" class="LineNr">264 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L265" class="LineNr">265 </span> <span class="subxS2Comment"># . . call</span> <span id="L266" class="LineNr">266 </span> e8/call <a href='055stream.subx.html#L17'>clear-stream</a>/disp32 <span id="L267" class="LineNr">267 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L268" class="LineNr">268 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> <span id="L269" class="LineNr">269 </span> <span class="subxComment"># clear-stream(_test-tmp-stream)</span> <span id="L270" class="LineNr">270 </span> <span class="subxS2Comment"># . . push args</span> <span id="L271" class="LineNr">271 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L272" class="LineNr">272 </span> <span class="subxS2Comment"># . . call</span> <span id="L273" class="LineNr">273 </span> e8/call <a href='055stream.subx.html#L17'>clear-stream</a>/disp32 <span id="L274" class="LineNr">274 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L275" class="LineNr">275 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> <span id="L276" class="LineNr">276 </span> <span class="subxComment"># write(_test-stream, &quot;Ab&quot;)</span> <span id="L277" class="LineNr">277 </span> <span class="subxS2Comment"># . . push args</span> <span id="L278" class="LineNr">278 </span> 68/push <span class="Constant">&quot;Ab&quot;</span>/imm32 <span id="L279" class="LineNr">279 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L280" class="LineNr">280 </span> <span class="subxS2Comment"># . . call</span> <span id="L281" class="LineNr">281 </span> e8/call <a href='057write.subx.html#L24'>write</a>/disp32 <span id="L282" class="LineNr">282 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L283" class="LineNr">283 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L284" class="LineNr">284 </span> <span class="subxComment"># EAX = read(_test-stream, _test-tmp-stream)</span> <span id="L285" class="LineNr">285 </span> <span class="subxS2Comment"># . . push args</span> <span id="L286" class="LineNr">286 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L287" class="LineNr">287 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L288" class="LineNr">288 </span> <span class="subxS2Comment"># . . call</span> <span id="L289" class="LineNr">289 </span> e8/call <a href='060read.subx.html#L48'>read</a>/disp32 <span id="L290" class="LineNr">290 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L291" class="LineNr">291 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L292" class="LineNr">292 </span> <span class="subxComment"># check-ints-equal(EAX, 2, msg)</span> <span id="L293" class="LineNr">293 </span> <span class="subxS2Comment"># . . push args</span> <span id="L294" class="LineNr">294 </span> 68/push <span class="Constant">&quot;F - <a href='060read.subx.html#L260'>test-read-single</a>: return EAX&quot;</span>/imm32 <span id="L295" class="LineNr">295 </span> 68/push 2/imm32 <span id="L296" class="LineNr">296 </span> 50/push-EAX <span id="L297" class="LineNr">297 </span> <span class="subxS2Comment"># . . call</span> <span id="L298" class="LineNr">298 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 <span id="L299" class="LineNr">299 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L300" class="LineNr">300 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> <span id="L301" class="LineNr">301 </span> <span class="subxComment"># check-stream-equal(_test-tmp-stream, &quot;Ab&quot;, msg)</span> <span id="L302" class="LineNr">302 </span> <span class="subxS2Comment"># . . push args</span> <span id="L303" class="LineNr">303 </span> 68/push <span class="Constant">&quot;F - test-read-single&quot;</span>/imm32 <span id="L304" class="LineNr">304 </span> 68/push <span class="Constant">&quot;Ab&quot;</span>/imm32 <span id="L305" class="LineNr">305 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L306" class="LineNr">306 </span> <span class="subxS2Comment"># . . call</span> <span id="L307" class="LineNr">307 </span> e8/call <a href='058stream-equal.subx.html#L199'>check-stream-equal</a>/disp32 <span id="L308" class="LineNr">308 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L309" class="LineNr">309 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> <span id="L310" class="LineNr">310 </span> <span class="subxComment"># end</span> <span id="L311" class="LineNr">311 </span> c3/return <span id="L312" class="LineNr">312 </span> <span id="L313" class="LineNr">313 </span><span class="subxTest">test-read-is-stateful</span>: <span id="L314" class="LineNr">314 </span> <span class="subxH1Comment"># - make two consecutive reads, check that their results are appended</span> <span id="L315" class="LineNr">315 </span> <span class="subxComment"># clear-stream(_test-stream)</span> <span id="L316" class="LineNr">316 </span> <span class="subxS2Comment"># . . push args</span> <span id="L317" class="LineNr">317 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L318" class="LineNr">318 </span> <span class="subxS2Comment"># . . call</span> <span id="L319" class="LineNr">319 </span> e8/call <a href='055stream.subx.html#L17'>clear-stream</a>/disp32 <span id="L320" class="LineNr">320 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L321" class="LineNr">321 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> <span id="L322" class="LineNr">322 </span> <span class="subxComment"># clear-stream(_test-tmp-stream)</span> <span id="L323" class="LineNr">323 </span> <span class="subxS2Comment"># . . push args</span> <span id="L324" class="LineNr">324 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L325" class="LineNr">325 </span> <span class="subxS2Comment"># . . call</span> <span id="L326" class="LineNr">326 </span> e8/call <a href='055stream.subx.html#L17'>clear-stream</a>/disp32 <span id="L327" class="LineNr">327 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L328" class="LineNr">328 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> <span id="L329" class="LineNr">329 </span> <span class="subxComment"># write(_test-stream, &quot;C&quot;)</span> <span id="L330" class="LineNr">330 </span> <span class="subxS2Comment"># . . push args</span> <span id="L331" class="LineNr">331 </span> 68/push <span class="Constant">&quot;C&quot;</span>/imm32 <span id="L332" class="LineNr">332 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L333" class="LineNr">333 </span> <span class="subxS2Comment"># . . call</span> <span id="L334" class="LineNr">334 </span> e8/call <a href='057write.subx.html#L24'>write</a>/disp32 <span id="L335" class="LineNr">335 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L336" class="LineNr">336 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L337" class="LineNr">337 </span> <span class="subxComment"># read(_test-stream, _test-tmp-stream)</span> <span id="L338" class="LineNr">338 </span> <span class="subxS2Comment"># . . push args</span> <span id="L339" class="LineNr">339 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L340" class="LineNr">340 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L341" class="LineNr">341 </span> <span class="subxS2Comment"># . . call</span> <span id="L342" class="LineNr">342 </span> e8/call <a href='060read.subx.html#L48'>read</a>/disp32 <span id="L343" class="LineNr">343 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L344" class="LineNr">344 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L345" class="LineNr">345 </span> <span class="subxComment"># write(_test-stream, &quot;D&quot;)</span> <span id="L346" class="LineNr">346 </span> <span class="subxS2Comment"># . . push args</span> <span id="L347" class="LineNr">347 </span> 68/push <span class="Constant">&quot;D&quot;</span>/imm32 <span id="L348" class="LineNr">348 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L349" class="LineNr">349 </span> <span class="subxS2Comment"># . . call</span> <span id="L350" class="LineNr">350 </span> e8/call <a href='057write.subx.html#L24'>write</a>/disp32 <span id="L351" class="LineNr">351 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L352" class="LineNr">352 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L353" class="LineNr">353 </span> <span class="subxComment"># read(_test-stream, _test-tmp-stream)</span> <span id="L354" class="LineNr">354 </span> <span class="subxS2Comment"># . . push args</span> <span id="L355" class="LineNr">355 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L356" class="LineNr">356 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L357" class="LineNr">357 </span> <span class="subxS2Comment"># . . call</span> <span id="L358" class="LineNr">358 </span> e8/call <a href='060read.subx.html#L48'>read</a>/disp32 <span id="L359" class="LineNr">359 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L360" class="LineNr">360 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L361" class="LineNr">361 </span> <span class="subxComment"># check-stream-equal(_test-tmp-stream, &quot;CD&quot;, msg)</span> <span id="L362" class="LineNr">362 </span> <span class="subxS2Comment"># . . push args</span> <span id="L363" class="LineNr">363 </span> 68/push <span class="Constant">&quot;F - test-read-is-stateful&quot;</span>/imm32 <span id="L364" class="LineNr">364 </span> 68/push <span class="Constant">&quot;CD&quot;</span>/imm32 <span id="L365" class="LineNr">365 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L366" class="LineNr">366 </span> <span class="subxS2Comment"># . . call</span> <span id="L367" class="LineNr">367 </span> e8/call <a href='058stream-equal.subx.html#L199'>check-stream-equal</a>/disp32 <span id="L368" class="LineNr">368 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L369" class="LineNr">369 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> <span id="L370" class="LineNr">370 </span> <span class="subxComment"># end</span> <span id="L371" class="LineNr">371 </span> c3/return <span id="L372" class="LineNr">372 </span> <span id="L373" class="LineNr">373 </span><span class="subxTest">test-read-returns-0-on-end-of-file</span>: <span id="L374" class="LineNr">374 </span> <span class="subxH1Comment"># - read after hitting end-of-file, check that result is 0</span> <span id="L375" class="LineNr">375 </span> <span class="subxComment"># setup</span> <span id="L376" class="LineNr">376 </span> <span class="subxS1Comment"># . clear-stream(_test-stream)</span> <span id="L377" class="LineNr">377 </span> <span class="subxS2Comment"># . . push args</span> <span id="L378" class="LineNr">378 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L379" class="LineNr">379 </span> <span class="subxS2Comment"># . . call</span> <span id="L380" class="LineNr">380 </span> e8/call <a href='055stream.subx.html#L17'>clear-stream</a>/disp32 <span id="L381" class="LineNr">381 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L382" class="LineNr">382 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> <span id="L383" class="LineNr">383 </span> <span class="subxS1Comment"># . clear-stream(_test-tmp-stream)</span> <span id="L384" class="LineNr">384 </span> <span class="subxS2Comment"># . . push args</span> <span id="L385" class="LineNr">385 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L386" class="LineNr">386 </span> <span class="subxS2Comment"># . . call</span> <span id="L387" class="LineNr">387 </span> e8/call <a href='055stream.subx.html#L17'>clear-stream</a>/disp32 <span id="L388" class="LineNr">388 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L389" class="LineNr">389 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to ESP</span> <span id="L390" class="LineNr">390 </span> <span class="subxS1Comment"># . write(_test-stream, &quot;Ab&quot;)</span> <span id="L391" class="LineNr">391 </span> <span class="subxS2Comment"># . . push args</span> <span id="L392" class="LineNr">392 </span> 68/push <span class="Constant">&quot;Ab&quot;</span>/imm32 <span id="L393" class="LineNr">393 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L394" class="LineNr">394 </span> <span class="subxS2Comment"># . . call</span> <span id="L395" class="LineNr">395 </span> e8/call <a href='057write.subx.html#L24'>write</a>/disp32 <span id="L396" class="LineNr">396 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L397" class="LineNr">397 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L398" class="LineNr">398 </span> <span class="subxComment"># first read gets to end-of-file</span> <span id="L399" class="LineNr">399 </span> <span class="subxS1Comment"># . read(_test-stream, _test-tmp-stream)</span> <span id="L400" class="LineNr">400 </span> <span class="subxS2Comment"># . . push args</span> <span id="L401" class="LineNr">401 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L402" class="LineNr">402 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L403" class="LineNr">403 </span> <span class="subxS2Comment"># . . call</span> <span id="L404" class="LineNr">404 </span> e8/call <a href='060read.subx.html#L48'>read</a>/disp32 <span id="L405" class="LineNr">405 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L406" class="LineNr">406 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L407" class="LineNr">407 </span> <span class="subxComment"># second read</span> <span id="L408" class="LineNr">408 </span> <span class="subxS1Comment"># . read(_test-stream, _test-tmp-stream)</span> <span id="L409" class="LineNr">409 </span> <span class="subxS2Comment"># . . push args</span> <span id="L410" class="LineNr">410 </span> 68/push <a href='060read.subx.html#L430'>_test-tmp-stream</a>/imm32 <span id="L411" class="LineNr">411 </span> 68/push <a href='057write.subx.html#L148'>_test-stream</a>/imm32 <span id="L412" class="LineNr">412 </span> <span class="subxS2Comment"># . . call</span> <span id="L413" class="LineNr">413 </span> e8/call <a href='060read.subx.html#L48'>read</a>/disp32 <span id="L414" class="LineNr">414 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L415" class="LineNr">415 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> <span id="L416" class="LineNr">416 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> <span id="L417" class="LineNr">417 </span> <span class="subxS2Comment"># . . push args</span> <span id="L418" class="LineNr">418 </span> 68/push <span class="Constant">&quot;F - test-read-returns-0-on-end-of-file&quot;</span>/imm32 <span id="L419" class="LineNr">419 </span> 68/push 0/imm32 <span id="L420" class="LineNr">420 </span> 50/push-EAX <span id="L421" class="LineNr">421 </span> <span class="subxS2Comment"># . . call</span> <span id="L422" class="LineNr">422 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 <span id="L423" class="LineNr">423 </span> <span class="subxS2Comment"># . . discard args</span> <span id="L424" class="LineNr">424 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> <span id="L425" class="LineNr">425 </span> <span class="subxComment"># end</span> <span id="L426" class="LineNr">426 </span> c3/return <span id="L427" class="LineNr">427 </span> <span id="L428" class="LineNr">428 </span>== data <span id="L429" class="LineNr">429 </span> <span id="L430" class="LineNr">430 </span><span class="subxMinorFunction">_test-tmp-stream</span>: <span id="L431" class="LineNr">431 </span> <span class="subxComment"># current write index</span> <span id="L432" class="LineNr">432 </span> 0/imm32 <span id="L433" class="LineNr">433 </span> <span class="subxComment"># current read index</span> <span id="L434" class="LineNr">434 </span> 0/imm32 <span id="L435" class="LineNr">435 </span> <span class="subxComment"># length</span> <span id="L436" class="LineNr">436 </span> 8/imm32 <span id="L437" class="LineNr">437 </span> <span class="subxComment"># data</span> <span id="L438" class="LineNr">438 </span> 00 00 00 00 00 00 00 00 <span class="subxComment"># 8 bytes</span> <span id="L439" class="LineNr">439 </span> <span id="L440" class="LineNr">440 </span><span class="subxS2Comment"># . . vim&#0058;nowrap:textwidth=0</span> </pre> </body> </html> <!-- vim: set foldmethod=manual : -->