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* io: derive DynStream from RootObj (not Stream)bptato2024-03-241-4/+4
* dom: add onload content attribute to bodybptato2024-02-241-0/+1
* dom: print parse errors to consolebptato2024-02-241-6/+8
* regex: re-work compileSearchRegexbptato2024-02-171-0/+1
* js: always use var destructorbptato2024-01-291-8/+2
* js: update pragma docsbptato2024-01-241-3/+9
* js: define toStringTag properlybptato2024-01-241-3/+3
* js: allow specifying static function name, small refactoringbptato2024-01-241-58/+60
* js: small improvementsbptato2024-01-171-20/+50
* js: use Nim allocatorb
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javascript: factor out fromJSbptato2023-08-291-489/+4
* javascript: move error ctors to js/errorbptato2023-08-291-48/+0
* js: fix typobptato2023-08-291-1/+1
* Add jsdelprop, allow deletion of ActionMap propsbptato2023-08-291-2/+41
* Add jssetprop, make ActionMap editable from JSbptato2023-08-291-3/+48
* refactor: Result[T, JSError] -> JSResult[T]bptato2023-08-281-21/+20
* javascript: refactorbptato2023-08-281-390/+12
* javascript: de-ref some interfacesbptato2023-08-281-54/+47
* javascript: allow by-ref getters to non-ref objectsbptato2023-08-271-36/+161
* javascript: misc. refactoringsbptato2023-08-241-44/+32
* DOMParser: use correct URLbptato2023-08-231-5/+2
* javascript: optimize unforgeable definitionbptato2023-08-231-16/+26
* javascript: simplifybptato2023-08-211-3/+2
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/022div.cc'>https://github.com/akkartik/mu/blob/master/022div.cc</a> <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="Comment">//: helper for division operations: sign-extend EAX into EDX</span> <span id="L2" class="LineNr"> 2 </span> <span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before &quot;End Initialize Op Names&quot;)</span> <span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L235'>put_new</a><span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L355'>Name</a></span><span class="Delimiter">,</span> <span class="Constant">&quot;99&quot;</span><span class="Delimiter">,</span> <span class="Constant">&quot;sign-extend <a href='010vm.cc.html#L10'>EAX</a> into <a href='010vm.cc.html#L12'>EDX</a> (cdq)&quot;</span><span class="Delimiter">);</span> <span id="L5" class="LineNr"> 5 </span> <span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(code)</span> <span id="L7" class="LineNr"> 7 </span><span class="Normal">void</span> <a href='022div.cc.html#L7'>test_cdq</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L8" class="LineNr"> 8 </span> <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = <span class="Constant">10</span><span class="Delimiter">;</span> <span id="L9" class="LineNr"> 9 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span> <span id="L10" class="LineNr">10 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L11" class="LineNr">11 </span> <span class="Constant">&quot;99\n&quot;</span> <span id="L12" class="LineNr">12 </span> <span class="Delimiter">);</span> <span id="L13" class="LineNr">13 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L14" class="LineNr">14 </span> <span class="Constant">&quot;run: sign-extend <a href='010vm.cc.html#L10'>EAX</a> into EDX\n&quot;</span> <span id="L15" class="LineNr">15 </span> <span class="Constant">&quot;run: <a href='010vm.cc.html#L12'>EDX</a> is now 0x00000000\n&quot;</span> <span id="L16" class="LineNr">16 </span> <span class="Delimiter">);</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 Single-Byte Opcodes&quot;)</span> <span id="L20" class="LineNr">20 </span><span class="Normal">case</span> <span class="Constant">0x99</span>: <span class="Delimiter">{</span> <span class="Comment">// sign-extend EAX into EDX</span> <span id="L21" class="LineNr">21 </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;sign-extend <a href='010vm.cc.html#L10'>EAX</a> into EDX&quot;</span> &lt;&lt; end<span class="Delimiter">();</span> <span id="L22" class="LineNr">22 </span> <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EDX]<span class="Delimiter">.</span>i = <span class="Delimiter">(</span><span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i &lt; <span class="Constant">0</span><span class="Delimiter">)</span> ? -<span class="Constant">1</span> : <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L23" class="LineNr">23 </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;EDX is now 0x&quot;</span> &lt;&lt; <a href='010vm.cc.html#L408'>HEXWORD</a> &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="L24" class="LineNr">24 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span id="L25" class="LineNr">25 </span><span class="Delimiter">}</span> <span id="L26" class="LineNr">26 </span> <span id="L27" class="LineNr">27 </span><span class="Delimiter">:(code)</span> <span id="L28" class="LineNr">28 </span><span class="Normal">void</span> <a href='022div.cc.html#L28'>test_cdq_negative</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span id="L29" class="LineNr">29 </span> <span class="SpecialChar"><a href='010vm.cc.html#L25'>Reg</a></span>[EAX]<span class="Delimiter">.</span>i = -<span class="Constant">10</span><span class="Delimiter">;</span> <span id="L30" class="LineNr">30 </span> <a href='011run.cc.html#L82'>run</a><span class="Delimiter">(</span> <span id="L31" class="LineNr">31 </span> <span class="Constant">&quot;== code 0x1\n&quot;</span> <span id="L32" class="LineNr">32 </span> <span class="Constant">&quot;99\n&quot;</span> <span id="L33" class="LineNr">33 </span> <span class="Delimiter">);</span> <span id="L34" class="LineNr">34 </span> <a href='003trace.cc.html#L290'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span> <span id="L35" class="LineNr">35 </span> <span class="Constant">&quot;run: sign-extend <a href='010vm.cc.html#L10'>EAX</a> into EDX\n&quot;</span> <span id="L36" class="LineNr">36 </span> <span class="Constant">&quot;run: <a href='010vm.cc.html#L12'>EDX</a> is now 0xffffffff\n&quot;</span> <span id="L37" class="LineNr">37 </span> <span class="Delimiter">);</span> <span id="L38" class="LineNr">38 </span><span class="Delimiter">}</span> </pre> </body> </html> <!-- vim: set foldmethod=manual : -->