diff options
| author | Kartik Agaram <vc@akkartik.com> | 2018-07-27 17:07:52 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2018-07-27 17:08:29 -0700 |
| commit | 5fe060d582d4a82444243a28b18085c971a85628 (patch) | |
| tree | 7a13eb020d0a9cab5d4195da931a373f575229ab /html/subx | |
| parent | 013d95266d563a3f531c13eba6d2a6bfe18f8808 (diff) | |
| download | mu-5fe060d582d4a82444243a28b18085c971a85628.tar.gz | |
4447
Diffstat (limited to 'html/subx')
22 files changed, 6024 insertions, 998 deletions
diff --git a/html/subx/000organization.cc.html b/html/subx/000organization.cc.html index 7bc3557c..2c0c0877 100644 --- a/html/subx/000organization.cc.html +++ b/html/subx/000organization.cc.html @@ -15,14 +15,13 @@ 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; } -.Delimiter { color: #800080; } +.Constant { color: #00a0a0; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } -.Constant { color: #00a0a0; } +.Delimiter { color: #800080; } .LineNr { color: #444444; } .Identifier { color: #c0a020; } .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } -.PreProc { color: #800080; } .cSpecial { color: #008000; } --> </style> @@ -158,7 +157,7 @@ if ('onhashchange' in window) { <span id="L98" class="LineNr"> 98 </span><span class="Comment">// functions in any order. Just be sure to declare each function header all on</span> <span id="L99" class="LineNr"> 99 </span><span class="Comment">// one line, ending with the '{'. Our auto-generation scripts are too minimal</span> <span id="L100" class="LineNr">100 </span><span class="Comment">// and simple-minded to handle anything else.</span> -<span id="L101" class="LineNr">101 </span><span class="PreProc">#include </span><span class="Constant">"function_list"</span> <span class="Comment">// by convention, files ending with '_list' are auto-generated</span> +<span id="L101" class="LineNr">101 </span><span class="Comment">#include "function_list" // by convention, files ending with '_list' are auto-generated</span> <span id="L102" class="LineNr">102 </span> <span id="L103" class="LineNr">103 </span><span class="Comment">// Globals</span> <span id="L104" class="LineNr">104 </span><span class="Comment">//</span> @@ -171,46 +170,55 @@ if ('onhashchange' in window) { <span id="L111" class="LineNr">111 </span><span class="Comment">// End Globals</span> <span id="L112" class="LineNr">112 </span> <span id="L113" class="LineNr">113 </span><span class="Normal">int</span> <a href='000organization.cc.html#L113'>main</a><span class="Delimiter">(</span><span class="Normal">int</span> argc<span class="Delimiter">,</span> <span class="Normal">char</span>* argv[]<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L114" class="LineNr">114 </span> atexit<span class="Delimiter">(</span><a href='000organization.cc.html#L139'>reset</a><span class="Delimiter">);</span> -<span id="L115" class="LineNr">115 </span> <span class="Comment">// run on a 32-bit system</span> +<span id="L114" class="LineNr">114 </span> atexit<span class="Delimiter">(</span><a href='000organization.cc.html#L148'>reset</a><span class="Delimiter">);</span> +<span id="L115" class="LineNr">115 </span> <span class="Comment">// we require a 32-bit little-endian system</span> <span id="L116" class="LineNr">116 </span> assert<span class="Delimiter">(</span><span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">int</span><span class="Delimiter">)</span> == <span class="Constant">4</span><span class="Delimiter">);</span> <span id="L117" class="LineNr">117 </span> assert<span class="Delimiter">(</span><span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">float</span><span class="Delimiter">)</span> == <span class="Constant">4</span><span class="Delimiter">);</span> -<span id="L118" class="LineNr">118 </span> <a href='000organization.cc.html#L143'>assert_little_endian</a><span class="Delimiter">();</span> +<span id="L118" class="LineNr">118 </span> <a href='000organization.cc.html#L152'>assert_little_endian</a><span class="Delimiter">();</span> <span id="L119" class="LineNr">119 </span> <span id="L120" class="LineNr">120 </span> <span class="Comment">// End One-time Setup</span> <span id="L121" class="LineNr">121 </span> <span id="L122" class="LineNr">122 </span> <span class="Comment">// Commandline Parsing</span> <span id="L123" class="LineNr">123 </span> <span class="Comment">// End Commandline Parsing</span> <span id="L124" class="LineNr">124 </span> -<span id="L125" class="LineNr">125 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// End Main</span> -<span id="L126" class="LineNr">126 </span><span class="Delimiter">}</span> -<span id="L127" class="LineNr">127 </span> -<span id="L128" class="LineNr">128 </span><span class="Comment">// Unit Tests</span> -<span id="L129" class="LineNr">129 </span><span class="Comment">// End Unit Tests</span> -<span id="L130" class="LineNr">130 </span> -<span id="L131" class="LineNr">131 </span><span class="Comment">//: our first directive; insert the following headers at the start of the program</span> -<span id="L132" class="LineNr">132 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L133" class="LineNr">133 </span><span class="PreProc">#include </span><span class="Constant"><assert.h></span> -<span id="L134" class="LineNr">134 </span><span class="PreProc">#include </span><span class="Constant"><stdlib.h></span> -<span id="L135" class="LineNr">135 </span> -<span id="L136" class="LineNr">136 </span><span class="Comment">//: Without directives or with the :(code) directive, lines get added at the</span> -<span id="L137" class="LineNr">137 </span><span class="Comment">//: end.</span> -<span id="L138" class="LineNr">138 </span><span class="Delimiter">:(code)</span> -<span id="L139" class="LineNr">139 </span><span class="Normal">void</span> <a href='000organization.cc.html#L139'>reset</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L140" class="LineNr">140 </span> <span class="Comment">// End Reset</span> -<span id="L141" class="LineNr">141 </span><span class="Delimiter">}</span> -<span id="L142" class="LineNr">142 </span> -<span id="L143" class="LineNr">143 </span><span class="Normal">void</span> <a href='000organization.cc.html#L143'>assert_little_endian</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L144" class="LineNr">144 </span> <span class="Normal">const</span> <span class="Normal">int</span> x = <span class="Constant">1</span><span class="Delimiter">;</span> -<span id="L145" class="LineNr">145 </span> <span class="Normal">const</span> <span class="Normal">char</span>* y = <span class="Normal">reinterpret_cast</span><<span class="Normal">const</span> <span class="Normal">char</span>*><span class="Delimiter">(</span>&x<span class="Delimiter">);</span> -<span id="L146" class="LineNr">146 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*y != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L147" class="LineNr">147 </span> cerr << <span class="Constant">"the SubX VM only runs on little-endian processors. Do you have Intel (or AMD or Atom) inside?</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L148" class="LineNr">148 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L149" class="LineNr">149 </span> <span class="Delimiter">}</span> +<span id="L125" class="LineNr">125 </span> <span class="Comment">// End Main</span> +<span id="L126" class="LineNr">126 </span> +<span id="L127" class="LineNr">127 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L128" class="LineNr">128 </span><span class="Delimiter">}</span> +<span id="L129" class="LineNr">129 </span> +<span id="L130" class="LineNr">130 </span><span class="Comment">// Unit Tests</span> +<span id="L131" class="LineNr">131 </span><span class="Comment">// End Unit Tests</span> +<span id="L132" class="LineNr">132 </span> +<span id="L133" class="LineNr">133 </span><span class="Comment">//: our first directive; insert the following headers at the start of the program</span> +<span id="L134" class="LineNr">134 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L135" class="LineNr">135 </span><span class="Comment">#include <assert.h></span> +<span id="L136" class="LineNr">136 </span><span class="Comment">#include <stdlib.h></span> +<span id="L137" class="LineNr">137 </span> +<span id="L138" class="LineNr">138 </span><span class="Comment">//: Without directives or with the :(code) directive, lines get added at the</span> +<span id="L139" class="LineNr">139 </span><span class="Comment">//: end.</span> +<span id="L140" class="LineNr">140 </span><span class="Comment">//:</span> +<span id="L141" class="LineNr">141 </span><span class="Comment">//: Regardless of where functions are defined, we can call them anywhere we</span> +<span id="L142" class="LineNr">142 </span><span class="Comment">//: like as long as we format the function header in a specific way: put it</span> +<span id="L143" class="LineNr">143 </span><span class="Comment">//: all on a single line without indent, end the line with ') {' and no</span> +<span id="L144" class="LineNr">144 </span><span class="Comment">//: trailing whitespace. As long as functions uniformly start this way, our</span> +<span id="L145" class="LineNr">145 </span><span class="Comment">//: 'build' script contains a little command to automatically generate</span> +<span id="L146" class="LineNr">146 </span><span class="Comment">//: declarations for them.</span> +<span id="L147" class="LineNr">147 </span><span class="Delimiter">:(code)</span> +<span id="L148" class="LineNr">148 </span><span class="Normal">void</span> <a href='000organization.cc.html#L148'>reset</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L149" class="LineNr">149 </span> <span class="Comment">// End Reset</span> <span id="L150" class="LineNr">150 </span><span class="Delimiter">}</span> -<span id="L151" class="LineNr">151 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L152" class="LineNr">152 </span><span class="PreProc">#include</span><span class="Constant"><iostream></span> -<span id="L153" class="LineNr">153 </span><span class="Normal">using</span> std::cerr<span class="Delimiter">;</span> +<span id="L151" class="LineNr">151 </span> +<span id="L152" class="LineNr">152 </span><span class="Normal">void</span> <a href='000organization.cc.html#L152'>assert_little_endian</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L153" class="LineNr">153 </span> <span class="Normal">const</span> <span class="Normal">int</span> x = <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L154" class="LineNr">154 </span> <span class="Normal">const</span> <span class="Normal">char</span>* y = <span class="Normal">reinterpret_cast</span><<span class="Normal">const</span> <span class="Normal">char</span>*><span class="Delimiter">(</span>&x<span class="Delimiter">);</span> +<span id="L155" class="LineNr">155 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*y != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L156" class="LineNr">156 </span> cerr << <span class="Constant">"SubX requires a little-endian processor. Do you have Intel (or AMD or Atom) inside?</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L157" class="LineNr">157 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L158" class="LineNr">158 </span> <span class="Delimiter">}</span> +<span id="L159" class="LineNr">159 </span><span class="Delimiter">}</span> +<span id="L160" class="LineNr">160 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L161" class="LineNr">161 </span><span class="Comment">#include<iostream></span> +<span id="L162" class="LineNr">162 </span><span class="Normal">using</span> std::cerr<span class="Delimiter">;</span> </pre> </body> </html> diff --git a/html/subx/001help.cc.html b/html/subx/001help.cc.html index da5d00c5..03a2160c 100644 --- a/html/subx/001help.cc.html +++ b/html/subx/001help.cc.html @@ -16,7 +16,6 @@ a { color:#eeeeee; text-decoration: none; } a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .Constant { color: #00a0a0; } -.SalientComment { color: #00ffff; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .Delimiter { color: #800080; } @@ -64,210 +63,284 @@ if ('onhashchange' in window) { <span id="L2" class="LineNr"> 2 </span><span class="Comment">//: This should give you a sense for what to look forward to in later layers.</span> <span id="L3" class="LineNr"> 3 </span> <span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(before "End Commandline Parsing")</span> -<span id="L5" class="LineNr"> 5 </span><span class="Normal">if</span> <span class="Delimiter">(</span>argc <= <span class="Constant">1</span> || <a href='001help.cc.html#L23'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"--help"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L5" class="LineNr"> 5 </span><span class="Normal">if</span> <span class="Delimiter">(</span>argc <= <span class="Constant">1</span> || <a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"--help"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> <span id="L6" class="LineNr"> 6 </span> <span class="Comment">//: this is the functionality later layers will provide</span> <span id="L7" class="LineNr"> 7 </span> <span class="Comment">// currently no automated tests for commandline arg parsing</span> -<span id="L8" class="LineNr"> 8 </span> cerr << <span class="Constant">"Usage:</span><span class="cSpecial">\n</span><span class="Constant">"</span> -<span id="L9" class="LineNr"> 9 </span> << <span class="Constant">" subx test</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L10" class="LineNr"> 10 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L11" class="LineNr"> 11 </span><span class="Delimiter">}</span> -<span id="L12" class="LineNr"> 12 </span> -<span id="L13" class="LineNr"> 13 </span><span class="SalientComment">//:: Helper function used by the above fragment of code (and later layers too,</span> -<span id="L14" class="LineNr"> 14 </span><span class="SalientComment">//:: who knows?).</span> -<span id="L15" class="LineNr"> 15 </span><span class="Comment">//: The :(code) directive appends function definitions to the end of the</span> -<span id="L16" class="LineNr"> 16 </span><span class="Comment">//: project. Regardless of where functions are defined, we can call them</span> -<span id="L17" class="LineNr"> 17 </span><span class="Comment">//: anywhere we like as long as we format the function header in a specific</span> -<span id="L18" class="LineNr"> 18 </span><span class="Comment">//: way: put it all on a single line without indent, end the line with ') {'</span> -<span id="L19" class="LineNr"> 19 </span><span class="Comment">//: and no trailing whitespace. As long as functions uniformly start this</span> -<span id="L20" class="LineNr"> 20 </span><span class="Comment">//: way, our 'build' script contains a little command to automatically</span> -<span id="L21" class="LineNr"> 21 </span><span class="Comment">//: generate declarations for them.</span> -<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(code)</span> -<span id="L23" class="LineNr"> 23 </span><span class="Normal">bool</span> <a href='001help.cc.html#L23'>is_equal</a><span class="Delimiter">(</span><span class="Normal">char</span>* s<span class="Delimiter">,</span> <span class="Normal">const</span> <span class="Normal">char</span>* lit<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L24" class="LineNr"> 24 </span> <span class="Identifier">return</span> strncmp<span class="Delimiter">(</span>s<span class="Delimiter">,</span> lit<span class="Delimiter">,</span> strlen<span class="Delimiter">(</span>lit<span class="Delimiter">))</span> == <span class="Constant">0</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="Normal">bool</span> <a href='001help.cc.html#L27'>starts_with</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">,</span> <span class="Normal">const</span> string& pat<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L28" class="LineNr"> 28 </span> string::const_iterator a=s<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> b=pat<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> -<span id="L29" class="LineNr"> 29 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">nada</span><span class="Comment">*/</span><span class="Delimiter">;</span> a!=s<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">()</span> && b!=pat<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> ++a<span class="Delimiter">,</span> ++b<span class="Delimiter">)</span> -<span id="L30" class="LineNr"> 30 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*a != *b<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L31" class="LineNr"> 31 </span> <span class="Identifier">return</span> b == pat<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span> -<span id="L33" class="LineNr"> 33 </span> -<span id="L34" class="LineNr"> 34 </span><span class="Comment">//: I'll throw some style conventions here for want of a better place for them.</span> -<span id="L35" class="LineNr"> 35 </span><span class="Comment">//: As a rule I hate style guides. Do what you want, that's my motto. But since</span> -<span id="L36" class="LineNr"> 36 </span><span class="Comment">//: we're dealing with C/C++, the one big thing we want to avoid is undefined</span> -<span id="L37" class="LineNr"> 37 </span><span class="Comment">//: behavior. If a compiler ever encounters undefined behavior it can make</span> -<span id="L38" class="LineNr"> 38 </span><span class="Comment">//: your program do anything it wants.</span> -<span id="L39" class="LineNr"> 39 </span><span class="Comment">//:</span> -<span id="L40" class="LineNr"> 40 </span><span class="Comment">//: For reference, my checklist of undefined behaviors to watch out for:</span> -<span id="L41" class="LineNr"> 41 </span><span class="Comment">//: out-of-bounds access</span> -<span id="L42" class="LineNr"> 42 </span><span class="Comment">//: uninitialized variables</span> -<span id="L43" class="LineNr"> 43 </span><span class="Comment">//: use after free</span> -<span id="L44" class="LineNr"> 44 </span><span class="Comment">//: dereferencing invalid pointers: null, a new of size 0, others</span> -<span id="L45" class="LineNr"> 45 </span><span class="Comment">//:</span> -<span id="L46" class="LineNr"> 46 </span><span class="Comment">//: casting a large number to a type too small to hold it</span> -<span id="L47" class="LineNr"> 47 </span><span class="Comment">//:</span> -<span id="L48" class="LineNr"> 48 </span><span class="Comment">//: integer overflow</span> -<span id="L49" class="LineNr"> 49 </span><span class="Comment">//: division by zero and other undefined expressions</span> -<span id="L50" class="LineNr"> 50 </span><span class="Comment">//: left-shift by negative count</span> -<span id="L51" class="LineNr"> 51 </span><span class="Comment">//: shifting values by more than or equal to the number of bits they contain</span> -<span id="L52" class="LineNr"> 52 </span><span class="Comment">//: bitwise operations on signed numbers</span> -<span id="L53" class="LineNr"> 53 </span><span class="Comment">//:</span> -<span id="L54" class="LineNr"> 54 </span><span class="Comment">//: Converting pointers to types of different alignment requirements</span> -<span id="L55" class="LineNr"> 55 </span><span class="Comment">//: T* -> void* -> T*: defined</span> -<span id="L56" class="LineNr"> 56 </span><span class="Comment">//: T* -> U* -> T*: defined if non-function pointers and alignment requirements are same</span> -<span id="L57" class="LineNr"> 57 </span><span class="Comment">//: function pointers may be cast to other function pointers</span> -<span id="L58" class="LineNr"> 58 </span><span class="Comment">//:</span> -<span id="L59" class="LineNr"> 59 </span><span class="Comment">//: Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast)</span> -<span id="L60" class="LineNr"> 60 </span><span class="Comment">//:</span> -<span id="L61" class="LineNr"> 61 </span><span class="Comment">//: To guard against these, some conventions:</span> -<span id="L62" class="LineNr"> 62 </span><span class="Comment">//:</span> -<span id="L63" class="LineNr"> 63 </span><span class="Comment">//: 0. Initialize all primitive variables in functions and constructors.</span> -<span id="L64" class="LineNr"> 64 </span><span class="Comment">//:</span> -<span id="L65" class="LineNr"> 65 </span><span class="Comment">//: 1. Minimize use of pointers and pointer arithmetic. Avoid 'new' and</span> -<span id="L66" class="LineNr"> 66 </span><span class="Comment">//: 'delete' as far as possible. Rely on STL to perform memory management to</span> -<span id="L67" class="LineNr"> 67 </span><span class="Comment">//: avoid use-after-free issues (and memory leaks).</span> -<span id="L68" class="LineNr"> 68 </span><span class="Comment">//:</span> -<span id="L69" class="LineNr"> 69 </span><span class="Comment">//: 2. Avoid naked arrays to avoid out-of-bounds access. Never use operator[]</span> -<span id="L70" class="LineNr"> 70 </span><span class="Comment">//: except with map. Use at() with STL vectors and so on.</span> -<span id="L71" class="LineNr"> 71 </span><span class="Comment">//:</span> -<span id="L72" class="LineNr"> 72 </span><span class="Comment">//: 3. Valgrind all the things.</span> -<span id="L73" class="LineNr"> 73 </span><span class="Comment">//:</span> -<span id="L74" class="LineNr"> 74 </span><span class="Comment">//: 4. Avoid unsigned numbers. Not strictly an undefined-behavior issue, but</span> -<span id="L75" class="LineNr"> 75 </span><span class="Comment">//: the extra range doesn't matter, and it's one less confusing category of</span> -<span id="L76" class="LineNr"> 76 </span><span class="Comment">//: interaction gotchas to worry about.</span> -<span id="L77" class="LineNr"> 77 </span><span class="Comment">//:</span> -<span id="L78" class="LineNr"> 78 </span><span class="Comment">//: Corollary: don't use the size() method on containers, since it returns an</span> -<span id="L79" class="LineNr"> 79 </span><span class="Comment">//: unsigned and that'll cause warnings about mixing signed and unsigned,</span> -<span id="L80" class="LineNr"> 80 </span><span class="Comment">//: yadda-yadda. Instead use this macro below to perform an unsafe cast to</span> -<span id="L81" class="LineNr"> 81 </span><span class="Comment">//: signed. We'll just give up immediately if a container's ever too large.</span> -<span id="L82" class="LineNr"> 82 </span><span class="Comment">//: Basically, Mu is not concerned about this being a little slower than it</span> -<span id="L83" class="LineNr"> 83 </span><span class="Comment">//: could be. (<a href="https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7">https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7</a>)</span> -<span id="L84" class="LineNr"> 84 </span><span class="Comment">//:</span> -<span id="L85" class="LineNr"> 85 </span><span class="Comment">//: Addendum to corollary: We're going to uniformly use int everywhere, to</span> -<span id="L86" class="LineNr"> 86 </span><span class="Comment">//: indicate that we're oblivious to number size, and since Clang on 32-bit</span> -<span id="L87" class="LineNr"> 87 </span><span class="Comment">//: platforms doesn't yet support multiplication over 64-bit integers, and</span> -<span id="L88" class="LineNr"> 88 </span><span class="Comment">//: since multiplying two integers seems like a more common situation to end</span> -<span id="L89" class="LineNr"> 89 </span><span class="Comment">//: up in than integer overflow.</span> -<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L91" class="LineNr"> 91 </span><span class="PreProc">#define SIZE(X) (assert((X)</span><span class="Delimiter">.</span><span class="PreProc">size() < (</span><span class="Constant">1LL</span><span class="PreProc"><<(</span><span class="Normal">sizeof</span><span class="PreProc">(</span><span class="Normal">int</span><span class="PreProc">)*</span><span class="Constant">8</span><span class="PreProc">-</span><span class="Constant">2</span><span class="PreProc">)))</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Normal">static_cast</span><span class="PreProc"><</span><span class="Normal">int</span><span class="PreProc">>((X)</span><span class="Delimiter">.</span><span class="PreProc">size()))</span> +<span id="L8" class="LineNr"> 8 </span> cerr << get<span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"usage"</span><span class="Delimiter">);</span> +<span id="L9" class="LineNr"> 9 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L10" class="LineNr"> 10 </span><span class="Delimiter">}</span> +<span id="L11" class="LineNr"> 11 </span> +<span id="L12" class="LineNr"> 12 </span><span class="Comment">//: Support for option parsing.</span> +<span id="L13" class="LineNr"> 13 </span><span class="Comment">//: Options always begin with '--' and are always the first arguments. An</span> +<span id="L14" class="LineNr"> 14 </span><span class="Comment">//: option will never follow a non-option.</span> +<span id="L15" class="LineNr"> 15 </span><span class="Normal">char</span>** <a href='001help.cc.html#L15'>arg</a> = &argv[<span class="Constant">1</span>]<span class="Delimiter">;</span> +<span id="L16" class="LineNr"> 16 </span><span class="Normal">while</span> <span class="Delimiter">(</span>argc > <span class="Constant">1</span> && <a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span>*arg<span class="Delimiter">,</span> <span class="Constant">"--"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L17" class="LineNr"> 17 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">)</span> +<span id="L18" class="LineNr"> 18 </span> <span class="Delimiter">;</span> <span class="Comment">// no-op branch just so any further additions can consistently always start with 'else'</span> +<span id="L19" class="LineNr"> 19 </span> <span class="Comment">// End Commandline Options(*arg)</span> +<span id="L20" class="LineNr"> 20 </span> <span class="Normal">else</span> +<span id="L21" class="LineNr"> 21 </span> cerr << <span class="Constant">"skipping unknown option "</span> << *arg << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L22" class="LineNr"> 22 </span> --argc<span class="Delimiter">;</span> ++argv<span class="Delimiter">;</span> ++arg<span class="Delimiter">;</span> +<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">}</span> +<span id="L24" class="LineNr"> 24 </span> +<span id="L25" class="LineNr"> 25 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"help"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>argc == <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L27" class="LineNr"> 27 </span> cerr << <span class="Constant">"help on what?</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L28" class="LineNr"> 28 </span> <a href='001help.cc.html#L46'>help_contents</a><span class="Delimiter">();</span> +<span id="L29" class="LineNr"> 29 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Delimiter">}</span> +<span id="L31" class="LineNr"> 31 </span> string key<span class="Delimiter">(</span>argv[<span class="Constant">2</span>]<span class="Delimiter">);</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Comment">// End Help Special-cases(key)</span> +<span id="L33" class="LineNr"> 33 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L247'>contains_key</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> key<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L34" class="LineNr"> 34 </span> cerr << get<span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> key<span class="Delimiter">);</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Delimiter">}</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L38" class="LineNr"> 38 </span> cerr << <span class="Constant">"No help found for '"</span> << key << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L39" class="LineNr"> 39 </span> <a href='001help.cc.html#L46'>help_contents</a><span class="Delimiter">();</span> +<span id="L40" class="LineNr"> 40 </span> cerr << <span class="Constant">"Please check your command for typos.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L41" class="LineNr"> 41 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Delimiter">}</span> +<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="Delimiter">:(code)</span> +<span id="L46" class="LineNr"> 46 </span><span class="Normal">void</span> <a href='001help.cc.html#L46'>help_contents</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L47" class="LineNr"> 47 </span> cerr << <span class="Constant">"Available top-level topics:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L48" class="LineNr"> 48 </span> cerr << <span class="Constant">" usage</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Comment">// End Help Contents</span> +<span id="L50" class="LineNr"> 50 </span><span class="Delimiter">}</span> +<span id="L51" class="LineNr"> 51 </span> +<span id="L52" class="LineNr"> 52 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L53" class="LineNr"> 53 </span>map<string<span class="Delimiter">,</span> string> <a href='001help.cc.html#L53'>Help</a><span class="Delimiter">;</span> +<span id="L54" class="LineNr"> 54 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L55" class="LineNr"> 55 </span><span class="Comment">#include <map></span> +<span id="L56" class="LineNr"> 56 </span><span class="Normal">using</span> std::map<span class="Delimiter">;</span> +<span id="L57" class="LineNr"> 57 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L58" class="LineNr"> 58 </span><a href='001help.cc.html#L60'>init_help</a><span class="Delimiter">();</span> +<span id="L59" class="LineNr"> 59 </span><span class="Delimiter">:(code)</span> +<span id="L60" class="LineNr"> 60 </span><span class="Normal">void</span> <a href='001help.cc.html#L60'>init_help</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L61" class="LineNr"> 61 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"usage"</span><span class="Delimiter">,</span> +<span id="L62" class="LineNr"> 62 </span> <span class="Constant">"Welcome to SubX, a better way to <a href='011run.cc.html#L94'>program</a> in machine code.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L63" class="LineNr"> 63 </span> <span class="Constant">"SubX uses a subset of the x86 instruction set. SubX programs will <a href='011run.cc.html#L78'>run</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Constant">"without modification on Linux computers.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L65" class="LineNr"> 65 </span> <span class="Constant">"It provides a better experience and better error messages than</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L66" class="LineNr"> 66 </span> <span class="Constant">"programming directly in machine code, but you have to stick to the</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L67" class="LineNr"> 67 </span> <span class="Constant">"instructions it supports.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L68" class="LineNr"> 68 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L69" class="LineNr"> 69 </span> <span class="Constant">"== Ways to invoke subx</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Constant">"- Run tests:</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L71" class="LineNr"> 71 </span> <span class="Constant">" subx test</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Constant">"- See this message:</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Constant">" subx --help</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Constant">"- Convert a textual SubX <a href='011run.cc.html#L94'>program</a> into a standard ELF binary that you can</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Constant">" <a href='011run.cc.html#L78'>run</a> on your computer:</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Constant">" subx translate <input 'source' file> <output ELF binary></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L77" class="LineNr"> 77 </span> <span class="Constant">"- Run a SubX binary using SubX itself (for better error messages):</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L78" class="LineNr"> 78 </span> <span class="Constant">" subx <a href='011run.cc.html#L78'>run</a> <ELF binary></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L79" class="LineNr"> 79 </span> <span class="Constant">"Add '--trace' to any of these commands to also emit a <a href='003trace.cc.html#L189'>trace</a>, for debugging purposes.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Constant">"However, options starting with '--' must always come before any other arguments.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L81" class="LineNr"> 81 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Constant">"To <a href='011run.cc.html#L103'>start</a> learning how to write SubX programs, <a href='011run.cc.html#L78'>run</a>:</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Constant">" subx help</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Delimiter">);</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Comment">// End Help Texts</span> +<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span> +<span id="L87" class="LineNr"> 87 </span> +<span id="L88" class="LineNr"> 88 </span><span class="Delimiter">:(code)</span> +<span id="L89" class="LineNr"> 89 </span><span class="Normal">bool</span> <a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span><span class="Normal">char</span>* s<span class="Delimiter">,</span> <span class="Normal">const</span> <span class="Normal">char</span>* lit<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L90" class="LineNr"> 90 </span> <span class="Identifier">return</span> strncmp<span class="Delimiter">(</span>s<span class="Delimiter">,</span> lit<span class="Delimiter">,</span> strlen<span class="Delimiter">(</span>lit<span class="Delimiter">))</span> == <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L91" class="LineNr"> 91 </span><span class="Delimiter">}</span> <span id="L92" class="LineNr"> 92 </span> -<span id="L93" class="LineNr"> 93 </span><span class="Comment">//: 5. Integer overflow is guarded against at runtime using the -ftrapv flag</span> -<span id="L94" class="LineNr"> 94 </span><span class="Comment">//: to the compiler, supported by Clang (GCC version only works sometimes:</span> -<span id="L95" class="LineNr"> 95 </span><span class="Comment">//: <a href="http://stackoverflow.com/questions/20851061/how-to-make-gcc-ftrapv-work">http://stackoverflow.com/questions/20851061/how-to-make-gcc-ftrapv-work</a>).</span> -<span id="L96" class="LineNr"> 96 </span><span class="Delimiter">:(before "atexit(reset)")</span> -<span id="L97" class="LineNr"> 97 </span><a href='001help.cc.html#L102'>initialize_signal_handlers</a><span class="Delimiter">();</span> <span class="Comment">// not always necessary, but doesn't hurt</span> -<span id="L98" class="LineNr"> 98 </span><span class="CommentedCode">//? cerr << INT_MAX+1 << '\n'; // test overflow</span> -<span id="L99" class="LineNr"> 99 </span><span class="CommentedCode">//? assert(false); // test SIGABRT</span> -<span id="L100" class="LineNr">100 </span><span class="Delimiter">:(code)</span> -<span id="L101" class="LineNr">101 </span><span class="Comment">// based on <a href="https://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c">https://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c</a></span> -<span id="L102" class="LineNr">102 </span><span class="Normal">void</span> <a href='001help.cc.html#L102'>initialize_signal_handlers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L103" class="LineNr">103 </span> <span class="Normal">struct</span> sigaction action<span class="Delimiter">;</span> -<span id="L104" class="LineNr">104 </span> bzero<span class="Delimiter">(</span>&action<span class="Delimiter">,</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>action<span class="Delimiter">));</span> -<span id="L105" class="LineNr">105 </span> action<span class="Delimiter">.</span>sa_sigaction = <a href='001help.cc.html#L110'>dump_and_exit</a><span class="Delimiter">;</span> -<span id="L106" class="LineNr">106 </span> sigemptyset<span class="Delimiter">(</span>&action<span class="Delimiter">.</span>sa_mask<span class="Delimiter">);</span> -<span id="L107" class="LineNr">107 </span> sigaction<span class="Delimiter">(</span><span class="Constant">SIGABRT</span><span class="Delimiter">,</span> &action<span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">);</span> <span class="Comment">// assert() failure or integer overflow on linux (with -ftrapv)</span> -<span id="L108" class="LineNr">108 </span> sigaction<span class="Delimiter">(</span><span class="Constant">SIGILL</span><span class="Delimiter">,</span> &action<span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">);</span> <span class="Comment">// integer overflow on OS X (with -ftrapv)</span> -<span id="L109" class="LineNr">109 </span><span class="Delimiter">}</span> -<span id="L110" class="LineNr">110 </span><span class="Normal">void</span> <a href='001help.cc.html#L110'>dump_and_exit</a><span class="Delimiter">(</span><span class="Normal">int</span> sig<span class="Delimiter">,</span> <a href='001help.cc.html#L208'>unused</a> siginfo_t* dummy1<span class="Delimiter">,</span> <a href='001help.cc.html#L208'>unused</a> <span class="Normal">void</span>* dummy2<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L111" class="LineNr">111 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>sig<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L112" class="LineNr">112 </span> <span class="Normal">case</span> <span class="Constant">SIGABRT</span>: -<span id="L113" class="LineNr">113 </span><span class="PreProc"> #ifndef __APPLE__</span> -<span id="L114" class="LineNr">114 </span> cerr << <span class="Constant">"SIGABRT: might be an integer overflow if it wasn't an assert() failure</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L115" class="LineNr">115 </span> _Exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L116" class="LineNr">116 </span><span class="PreProc"> #endif</span> -<span id="L117" class="LineNr">117 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L118" class="LineNr">118 </span> <span class="Normal">case</span> <span class="Constant">SIGILL</span>: -<span id="L119" class="LineNr">119 </span><span class="PreProc"> #ifdef __APPLE__</span> -<span id="L120" class="LineNr">120 </span> cerr << <span class="Constant">"SIGILL: most likely caused by integer overflow</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L121" class="LineNr">121 </span> _Exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L122" class="LineNr">122 </span><span class="PreProc"> #endif</span> -<span id="L123" class="LineNr">123 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L124" class="LineNr">124 </span> <span class="Normal">default</span>: -<span id="L125" class="LineNr">125 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L126" class="LineNr">126 </span> <span class="Delimiter">}</span> -<span id="L127" class="LineNr">127 </span><span class="Delimiter">}</span> -<span id="L128" class="LineNr">128 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L129" class="LineNr">129 </span><span class="PreProc">#include </span><span class="Constant"><signal.h></span> -<span id="L130" class="LineNr">130 </span> -<span id="L131" class="LineNr">131 </span><span class="Comment">//: For good measure we'll also enable SIGFPE.</span> -<span id="L132" class="LineNr">132 </span><span class="Delimiter">:(before "atexit(reset)")</span> -<span id="L133" class="LineNr">133 </span><a href='001help.cc.html#L146'>feenableexcept</a><span class="Delimiter">(</span>FE_OVERFLOW | FE_UNDERFLOW<span class="Delimiter">);</span> -<span id="L134" class="LineNr">134 </span><span class="CommentedCode">//? assert(sizeof(int) == 4 && sizeof(float) == 4);</span> -<span id="L135" class="LineNr">135 </span><span class="CommentedCode">//? // | exp | mantissa</span> -<span id="L136" class="LineNr">136 </span><span class="CommentedCode">//? int smallest_subnormal = 0b00000000000000000000000000000001;</span> -<span id="L137" class="LineNr">137 </span><span class="CommentedCode">//? float smallest_subnormal_f = *reinterpret_cast<float*>(&smallest_subnormal);</span> -<span id="L138" class="LineNr">138 </span><span class="CommentedCode">//? cerr << "ε: " << smallest_subnormal_f << '\n';</span> -<span id="L139" class="LineNr">139 </span><span class="CommentedCode">//? cerr << "ε/2: " << smallest_subnormal_f/2 << " (underflow)\n"; // test SIGFPE</span> -<span id="L140" class="LineNr">140 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L141" class="LineNr">141 </span><span class="PreProc">#include </span><span class="Constant"><fenv.h></span> -<span id="L142" class="LineNr">142 </span><span class="Delimiter">:(code)</span> -<span id="L143" class="LineNr">143 </span><span class="PreProc">#ifdef __APPLE__</span> -<span id="L144" class="LineNr">144 </span><span class="Comment">// Public domain polyfill for feenableexcept on OS X</span> -<span id="L145" class="LineNr">145 </span><span class="Comment">// <a href="http://www-personal.umich.edu/~williams/archive/computation/fe-handling-example.c">http://www-personal.umich.edu/~williams/archive/computation/fe-handling-example.c</a></span> -<span id="L146" class="LineNr">146 </span><span class="Normal">int</span> <a href='001help.cc.html#L146'>feenableexcept</a><span class="Delimiter">(</span><span class="Normal">unsigned</span> <span class="Normal">int</span> excepts<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L147" class="LineNr">147 </span> <span class="Normal">static</span> fenv_t fenv<span class="Delimiter">;</span> -<span id="L148" class="LineNr">148 </span> <span class="Normal">unsigned</span> <span class="Normal">int</span> new_excepts = excepts & FE_ALL_EXCEPT<span class="Delimiter">;</span> -<span id="L149" class="LineNr">149 </span> <span class="Normal">unsigned</span> <span class="Normal">int</span> old_excepts<span class="Delimiter">;</span> -<span id="L150" class="LineNr">150 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>fegetenv<span class="Delimiter">(</span>&fenv<span class="Delimiter">))</span> <span class="Identifier">return</span> -<span class="Constant">1</span><span class="Delimiter">;</span> -<span id="L151" class="LineNr">151 </span> old_excepts = fenv<span class="Delimiter">.</span>__control & FE_ALL_EXCEPT<span class="Delimiter">;</span> -<span id="L152" class="LineNr">152 </span> fenv<span class="Delimiter">.</span>__control &= ~new_excepts<span class="Delimiter">;</span> -<span id="L153" class="LineNr">153 </span> fenv<span class="Delimiter">.</span>__mxcsr &= ~<span class="Delimiter">(</span>new_excepts << <span class="Constant">7</span><span class="Delimiter">);</span> -<span id="L154" class="LineNr">154 </span> <span class="Identifier">return</span> fesetenv<span class="Delimiter">(</span>&fenv<span class="Delimiter">)</span> ? -<span class="Constant">1</span> : old_excepts<span class="Delimiter">;</span> -<span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span> -<span id="L156" class="LineNr">156 </span><span class="PreProc">#endif</span> -<span id="L157" class="LineNr">157 </span> -<span id="L158" class="LineNr">158 </span><span class="Comment">//: 6. Map's operator[] being non-const is fucking evil.</span> -<span id="L159" class="LineNr">159 </span><span class="Delimiter">:(before "Globals")</span> <span class="Comment">// can't generate prototypes for these</span> -<span id="L160" class="LineNr">160 </span><span class="Comment">// from <a href="http://stackoverflow.com/questions/152643/idiomatic-c-for-reading-from-a-const-map">http://stackoverflow.com/questions/152643/idiomatic-c-for-reading-from-a-const-map</a></span> -<span id="L161" class="LineNr">161 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type& get<span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L162" class="LineNr">162 </span> <span class="Normal">typename</span> T::iterator iter<span class="Delimiter">(</span>map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">));</span> -<span id="L163" class="LineNr">163 </span> assert<span class="Delimiter">(</span>iter != map<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">());</span> -<span id="L164" class="LineNr">164 </span> <span class="Identifier">return</span> iter<span class="Delimiter">-></span>second<span class="Delimiter">;</span> -<span id="L165" class="LineNr">165 </span><span class="Delimiter">}</span> -<span id="L166" class="LineNr">166 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type <span class="Normal">const</span>& get<span class="Delimiter">(</span><span class="Normal">const</span> T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L167" class="LineNr">167 </span> <span class="Normal">typename</span> T::const_iterator iter<span class="Delimiter">(</span>map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">));</span> -<span id="L168" class="LineNr">168 </span> assert<span class="Delimiter">(</span>iter != map<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">());</span> -<span id="L169" class="LineNr">169 </span> <span class="Identifier">return</span> iter<span class="Delimiter">-></span>second<span class="Delimiter">;</span> -<span id="L170" class="LineNr">170 </span><span class="Delimiter">}</span> -<span id="L171" class="LineNr">171 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type <span class="Normal">const</span>& <a href='001help.cc.html#L171'>put</a><span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">,</span> <span class="Normal">typename</span> T::mapped_type <span class="Normal">const</span>& value<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L172" class="LineNr">172 </span> map[key] = value<span class="Delimiter">;</span> -<span id="L173" class="LineNr">173 </span> <span class="Identifier">return</span> map[key]<span class="Delimiter">;</span> -<span id="L174" class="LineNr">174 </span><span class="Delimiter">}</span> -<span id="L175" class="LineNr">175 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">bool</span> <a href='001help.cc.html#L175'>contains_key</a><span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L176" class="LineNr">176 </span> <span class="Identifier">return</span> map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">)</span> != map<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span> -<span id="L178" class="LineNr">178 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type& <a href='001help.cc.html#L178'>get_or_insert</a><span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L179" class="LineNr">179 </span> <span class="Identifier">return</span> map[key]<span class="Delimiter">;</span> -<span id="L180" class="LineNr">180 </span><span class="Delimiter">}</span> -<span id="L181" class="LineNr">181 </span><span class="Comment">//: The contract: any container that relies on get_or_insert should never call</span> -<span id="L182" class="LineNr">182 </span><span class="Comment">//: contains_key.</span> -<span id="L183" class="LineNr">183 </span> -<span id="L184" class="LineNr">184 </span><span class="Comment">//: 7. istreams are a royal pain in the arse. You have to be careful about</span> -<span id="L185" class="LineNr">185 </span><span class="Comment">//: what subclass you try to putback into. You have to watch out for the pesky</span> -<span id="L186" class="LineNr">186 </span><span class="Comment">//: failbit and badbit. Just avoid eof() and use this helper instead.</span> -<span id="L187" class="LineNr">187 </span><span class="Delimiter">:(code)</span> -<span id="L188" class="LineNr">188 </span><span class="Normal">bool</span> <a href='001help.cc.html#L188'>has_data</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L189" class="LineNr">189 </span> <span class="Identifier">return</span> in && !in<span class="Delimiter">.</span>eof<span class="Delimiter">();</span> -<span id="L190" class="LineNr">190 </span><span class="Delimiter">}</span> -<span id="L191" class="LineNr">191 </span> -<span id="L192" class="LineNr">192 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L193" class="LineNr">193 </span><span class="PreProc">#include </span><span class="Constant"><assert.h></span> -<span id="L194" class="LineNr">194 </span> -<span id="L195" class="LineNr">195 </span><span class="PreProc">#include </span><span class="Constant"><iostream></span> -<span id="L196" class="LineNr">196 </span><span class="Normal">using</span> std::istream<span class="Delimiter">;</span> -<span id="L197" class="LineNr">197 </span><span class="Normal">using</span> std::ostream<span class="Delimiter">;</span> -<span id="L198" class="LineNr">198 </span><span class="Normal">using</span> std::iostream<span class="Delimiter">;</span> -<span id="L199" class="LineNr">199 </span><span class="Normal">using</span> std::cin<span class="Delimiter">;</span> -<span id="L200" class="LineNr">200 </span><span class="Normal">using</span> std::cout<span class="Delimiter">;</span> -<span id="L201" class="LineNr">201 </span><span class="Normal">using</span> std::cerr<span class="Delimiter">;</span> -<span id="L202" class="LineNr">202 </span><span class="PreProc">#include </span><span class="Constant"><iomanip></span> -<span id="L203" class="LineNr">203 </span> -<span id="L204" class="LineNr">204 </span><span class="PreProc">#include </span><span class="Constant"><string.h></span> -<span id="L205" class="LineNr">205 </span><span class="PreProc">#include </span><span class="Constant"><string></span> -<span id="L206" class="LineNr">206 </span><span class="Normal">using</span> std::string<span class="Delimiter">;</span> -<span id="L207" class="LineNr">207 </span> -<span id="L208" class="LineNr">208 </span><span class="PreProc">#define unused __attribute__((unused))</span> +<span id="L93" class="LineNr"> 93 </span><span class="Normal">bool</span> <a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">,</span> <span class="Normal">const</span> string& pat<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L94" class="LineNr"> 94 </span> string::const_iterator a=s<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> b=pat<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">nada</span><span class="Comment">*/</span><span class="Delimiter">;</span> a!=s<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">()</span> && b!=pat<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++a<span class="Delimiter">,</span> ++b<span class="Delimiter">)</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*a != *b<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Identifier">return</span> b == pat<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L98" class="LineNr"> 98 </span><span class="Delimiter">}</span> +<span id="L99" class="LineNr"> 99 </span> +<span id="L100" class="LineNr">100 </span><span class="Comment">//: I'll throw some style conventions here for want of a better place for them.</span> +<span id="L101" class="LineNr">101 </span><span class="Comment">//: As a rule I hate style guides. Do what you want, that's my motto. But since</span> +<span id="L102" class="LineNr">102 </span><span class="Comment">//: we're dealing with C/C++, the one big thing we want to avoid is undefined</span> +<span id="L103" class="LineNr">103 </span><span class="Comment">//: behavior. If a compiler ever encounters undefined behavior it can make</span> +<span id="L104" class="LineNr">104 </span><span class="Comment">//: your program do anything it wants.</span> +<span id="L105" class="LineNr">105 </span><span class="Comment">//:</span> +<span id="L106" class="LineNr">106 </span><span class="Comment">//: For reference, my checklist of undefined behaviors to watch out for:</span> +<span id="L107" class="LineNr">107 </span><span class="Comment">//: out-of-bounds access</span> +<span id="L108" class="LineNr">108 </span><span class="Comment">//: uninitialized variables</span> +<span id="L109" class="LineNr">109 </span><span class="Comment">//: use after free</span> +<span id="L110" class="LineNr">110 </span><span class="Comment">//: dereferencing invalid pointers: null, a new of size 0, others</span> +<span id="L111" class="LineNr">111 </span><span class="Comment">//:</span> +<span id="L112" class="LineNr">112 </span><span class="Comment">//: casting a large number to a type too small to hold it</span> +<span id="L113" class="LineNr">113 </span><span class="Comment">//:</span> +<span id="L114" class="LineNr">114 </span><span class="Comment">//: integer overflow</span> +<span id="L115" class="LineNr">115 </span><span class="Comment">//: division by zero and other undefined expressions</span> +<span id="L116" class="LineNr">116 </span><span class="Comment">//: left-shift by negative count</span> +<span id="L117" class="LineNr">117 </span><span class="Comment">//: shifting values by more than or equal to the number of bits they contain</span> +<span id="L118" class="LineNr">118 </span><span class="Comment">//: bitwise operations on signed numbers</span> +<span id="L119" class="LineNr">119 </span><span class="Comment">//:</span> +<span id="L120" class="LineNr">120 </span><span class="Comment">//: Converting pointers to types of different alignment requirements</span> +<span id="L121" class="LineNr">121 </span><span class="Comment">//: T* -> void* -> T*: defined</span> +<span id="L122" class="LineNr">122 </span><span class="Comment">//: T* -> U* -> T*: defined if non-function pointers and alignment requirements are same</span> +<span id="L123" class="LineNr">123 </span><span class="Comment">//: function pointers may be cast to other function pointers</span> +<span id="L124" class="LineNr">124 </span><span class="Comment">//:</span> +<span id="L125" class="LineNr">125 </span><span class="Comment">//: Casting a numeric value into a value that can't be represented by the target type (either directly or via static_cast)</span> +<span id="L126" class="LineNr">126 </span><span class="Comment">//:</span> +<span id="L127" class="LineNr">127 </span><span class="Comment">//: To guard against these, some conventions:</span> +<span id="L128" class="LineNr">128 </span><span class="Comment">//:</span> +<span id="L129" class="LineNr">129 </span><span class="Comment">//: 0. Initialize all primitive variables in functions and constructors.</span> +<span id="L130" class="LineNr">130 </span><span class="Comment">//:</span> +<span id="L131" class="LineNr">131 </span><span class="Comment">//: 1. Minimize use of pointers and pointer arithmetic. Avoid 'new' and</span> +<span id="L132" class="LineNr">132 </span><span class="Comment">//: 'delete' as far as possible. Rely on STL to perform memory management to</span> +<span id="L133" class="LineNr">133 </span><span class="Comment">//: avoid use-after-free issues (and memory leaks).</span> +<span id="L134" class="LineNr">134 </span><span class="Comment">//:</span> +<span id="L135" class="LineNr">135 </span><span class="Comment">//: 2. Avoid naked arrays to avoid out-of-bounds access. Never use operator[]</span> +<span id="L136" class="LineNr">136 </span><span class="Comment">//: except with map. Use at() with STL vectors and so on.</span> +<span id="L137" class="LineNr">137 </span><span class="Comment">//:</span> +<span id="L138" class="LineNr">138 </span><span class="Comment">//: 3. Valgrind all the things.</span> +<span id="L139" class="LineNr">139 </span><span class="Comment">//:</span> +<span id="L140" class="LineNr">140 </span><span class="Comment">//: 4. Avoid unsigned numbers. Not strictly an undefined-behavior issue, but</span> +<span id="L141" class="LineNr">141 </span><span class="Comment">//: the extra range doesn't matter, and it's one less confusing category of</span> +<span id="L142" class="LineNr">142 </span><span class="Comment">//: interaction gotchas to worry about.</span> +<span id="L143" class="LineNr">143 </span><span class="Comment">//:</span> +<span id="L144" class="LineNr">144 </span><span class="Comment">//: Corollary: don't use the size() method on containers, since it returns an</span> +<span id="L145" class="LineNr">145 </span><span class="Comment">//: unsigned and that'll cause warnings about mixing signed and unsigned,</span> +<span id="L146" class="LineNr">146 </span><span class="Comment">//: yadda-yadda. Instead use this macro below to perform an unsafe cast to</span> +<span id="L147" class="LineNr">147 </span><span class="Comment">//: signed. We'll just give up immediately if a container's ever too large.</span> +<span id="L148" class="LineNr">148 </span><span class="Comment">//: Basically, Mu is not concerned about this being a little slower than it</span> +<span id="L149" class="LineNr">149 </span><span class="Comment">//: could be. (<a href="https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7">https://gist.github.com/rygorous/e0f055bfb74e3d5f0af20690759de5a7</a>)</span> +<span id="L150" class="LineNr">150 </span><span class="Comment">//:</span> +<span id="L151" class="LineNr">151 </span><span class="Comment">//: Addendum to corollary: We're going to uniformly use int everywhere, to</span> +<span id="L152" class="LineNr">152 </span><span class="Comment">//: indicate that we're oblivious to number size, and since Clang on 32-bit</span> +<span id="L153" class="LineNr">153 </span><span class="Comment">//: platforms doesn't yet support multiplication over 64-bit integers, and</span> +<span id="L154" class="LineNr">154 </span><span class="Comment">//: since multiplying two integers seems like a more common situation to end</span> +<span id="L155" class="LineNr">155 </span><span class="Comment">//: up in than integer overflow.</span> +<span id="L156" class="LineNr">156 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L157" class="LineNr">157 </span><span class="Comment">#define SIZE(X) (assert((X).size() < (1LL<<(sizeof(int)*8-2))), static_cast<int>((X).size()))</span> +<span id="L158" class="LineNr">158 </span> +<span id="L159" class="LineNr">159 </span><span class="Comment">//: 5. Integer overflow is guarded against at runtime using the -ftrapv flag</span> +<span id="L160" class="LineNr">160 </span><span class="Comment">//: to the compiler, supported by Clang (GCC version only works sometimes:</span> +<span id="L161" class="LineNr">161 </span><span class="Comment">//: <a href="http://stackoverflow.com/questions/20851061/how-to-make-gcc-ftrapv-work">http://stackoverflow.com/questions/20851061/how-to-make-gcc-ftrapv-work</a>).</span> +<span id="L162" class="LineNr">162 </span><span class="Delimiter">:(before "atexit(reset)")</span> +<span id="L163" class="LineNr">163 </span><a href='001help.cc.html#L168'>initialize_signal_handlers</a><span class="Delimiter">();</span> <span class="Comment">// not always necessary, but doesn't hurt</span> +<span id="L164" class="LineNr">164 </span><span class="CommentedCode">//? cerr << INT_MAX+1 << '\n'; // test overflow</span> +<span id="L165" class="LineNr">165 </span><span class="CommentedCode">//? assert(false); // test SIGABRT</span> +<span id="L166" class="LineNr">166 </span><span class="Delimiter">:(code)</span> +<span id="L167" class="LineNr">167 </span><span class="Comment">// based on <a href="https://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c">https://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c</a></span> +<span id="L168" class="LineNr">168 </span><span class="Normal">void</span> <a href='001help.cc.html#L168'>initialize_signal_handlers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L169" class="LineNr">169 </span> <span class="Normal">struct</span> sigaction action<span class="Delimiter">;</span> +<span id="L170" class="LineNr">170 </span> bzero<span class="Delimiter">(</span>&action<span class="Delimiter">,</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>action<span class="Delimiter">));</span> +<span id="L171" class="LineNr">171 </span> action<span class="Delimiter">.</span>sa_sigaction = <a href='001help.cc.html#L176'>dump_and_exit</a><span class="Delimiter">;</span> +<span id="L172" class="LineNr">172 </span> sigemptyset<span class="Delimiter">(</span>&action<span class="Delimiter">.</span>sa_mask<span class="Delimiter">);</span> +<span id="L173" class="LineNr">173 </span> sigaction<span class="Delimiter">(</span><span class="Constant">SIGABRT</span><span class="Delimiter">,</span> &action<span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">);</span> <span class="Comment">// assert() failure or integer overflow on linux (with -ftrapv)</span> +<span id="L174" class="LineNr">174 </span> sigaction<span class="Delimiter">(</span><span class="Constant">SIGILL</span><span class="Delimiter">,</span> &action<span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">);</span> <span class="Comment">// integer overflow on OS X (with -ftrapv)</span> +<span id="L175" class="LineNr">175 </span><span class="Delimiter">}</span> +<span id="L176" class="LineNr">176 </span><span class="Normal">void</span> <a href='001help.cc.html#L176'>dump_and_exit</a><span class="Delimiter">(</span><span class="Normal">int</span> sig<span class="Delimiter">,</span> siginfo_t* <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">,</span> <span class="Normal">void</span>* <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L177" class="LineNr">177 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>sig<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L178" class="LineNr">178 </span> <span class="Normal">case</span> <span class="Constant">SIGABRT</span>: +<span id="L179" class="LineNr">179 </span><span class="PreProc"> #ifndef __APPLE__</span> +<span id="L180" class="LineNr">180 </span> cerr << <span class="Constant">"SIGABRT: might be an integer overflow if it wasn't an assert() failure</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L181" class="LineNr">181 </span> _Exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L182" class="LineNr">182 </span><span class="PreProc"> #endif</span> +<span id="L183" class="LineNr">183 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L184" class="LineNr">184 </span> <span class="Normal">case</span> <span class="Constant">SIGILL</span>: +<span id="L185" class="LineNr">185 </span><span class="PreProc"> #ifdef __APPLE__</span> +<span id="L186" class="LineNr">186 </span> cerr << <span class="Constant">"SIGILL: most likely caused by integer overflow</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L187" class="LineNr">187 </span> _Exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L188" class="LineNr">188 </span><span class="PreProc"> #endif</span> +<span id="L189" class="LineNr">189 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L190" class="LineNr">190 </span> <span class="Normal">default</span>: +<span id="L191" class="LineNr">191 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L192" class="LineNr">192 </span> <span class="Delimiter">}</span> +<span id="L193" class="LineNr">193 </span><span class="Delimiter">}</span> +<span id="L194" class="LineNr">194 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L195" class="LineNr">195 </span><span class="Comment">#include <signal.h></span> +<span id="L196" class="LineNr">196 </span> +<span id="L197" class="LineNr">197 </span><span class="Comment">//: For good measure we'll also enable SIGFPE.</span> +<span id="L198" class="LineNr">198 </span><span class="Delimiter">:(before "atexit(reset)")</span> +<span id="L199" class="LineNr">199 </span><a href='001help.cc.html#L212'>feenableexcept</a><span class="Delimiter">(</span>FE_OVERFLOW | FE_UNDERFLOW<span class="Delimiter">);</span> +<span id="L200" class="LineNr">200 </span><span class="CommentedCode">//? assert(sizeof(int) == 4 && sizeof(float) == 4);</span> +<span id="L201" class="LineNr">201 </span><span class="CommentedCode">//? // | exp | mantissa</span> +<span id="L202" class="LineNr">202 </span><span class="CommentedCode">//? int smallest_subnormal = 0b00000000000000000000000000000001;</span> +<span id="L203" class="LineNr">203 </span><span class="CommentedCode">//? float smallest_subnormal_f = *reinterpret_cast<float*>(&smallest_subnormal);</span> +<span id="L204" class="LineNr">204 </span><span class="CommentedCode">//? cerr << "ε: " << smallest_subnormal_f << '\n';</span> +<span id="L205" class="LineNr">205 </span><span class="CommentedCode">//? cerr << "ε/2: " << smallest_subnormal_f/2 << " (underflow)\n"; // test SIGFPE</span> +<span id="L206" class="LineNr">206 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L207" class="LineNr">207 </span><span class="Comment">#include <fenv.h></span> +<span id="L208" class="LineNr">208 </span><span class="Delimiter">:(code)</span> +<span id="L209" class="LineNr">209 </span><span class="Comment">#ifdef __APPLE__</span> +<span id="L210" class="LineNr">210 </span><span class="Comment">// Public domain polyfill for feenableexcept on OS X</span> +<span id="L211" class="LineNr">211 </span><span class="Comment">// <a href="http://www-personal.umich.edu/~williams/archive/computation/fe-handling-example.c">http://www-personal.umich.edu/~williams/archive/computation/fe-handling-example.c</a></span> +<span id="L212" class="LineNr">212 </span><span class="Normal">int</span> <a href='001help.cc.html#L212'>feenableexcept</a><span class="Delimiter">(</span><span class="Normal">unsigned</span> <span class="Normal">int</span> excepts<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L213" class="LineNr">213 </span> <span class="Normal">static</span> fenv_t fenv<span class="Delimiter">;</span> +<span id="L214" class="LineNr">214 </span> <span class="Normal">unsigned</span> <span class="Normal">int</span> new_excepts = excepts & FE_ALL_EXCEPT<span class="Delimiter">;</span> +<span id="L215" class="LineNr">215 </span> <span class="Normal">unsigned</span> <span class="Normal">int</span> old_excepts<span class="Delimiter">;</span> +<span id="L216" class="LineNr">216 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>fegetenv<span class="Delimiter">(</span>&fenv<span class="Delimiter">))</span> <span class="Identifier">return</span> -<span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L217" class="LineNr">217 </span> old_excepts = fenv<span class="Delimiter">.</span>__control & FE_ALL_EXCEPT<span class="Delimiter">;</span> +<span id="L218" class="LineNr">218 </span> fenv<span class="Delimiter">.</span>__control &= ~new_excepts<span class="Delimiter">;</span> +<span id="L219" class="LineNr">219 </span> fenv<span class="Delimiter">.</span>__mxcsr &= ~<span class="Delimiter">(</span>new_excepts << <span class="Constant">7</span><span class="Delimiter">);</span> +<span id="L220" class="LineNr">220 </span> <span class="Identifier">return</span> fesetenv<span class="Delimiter">(</span>&fenv<span class="Delimiter">)</span> ? -<span class="Constant">1</span> : old_excepts<span class="Delimiter">;</span> +<span id="L221" class="LineNr">221 </span><span class="Delimiter">}</span> +<span id="L222" class="LineNr">222 </span><span class="Comment">#endif</span> +<span id="L223" class="LineNr">223 </span> +<span id="L224" class="LineNr">224 </span><span class="Comment">//: 6. Map's operator[] being non-const is fucking evil.</span> +<span id="L225" class="LineNr">225 </span><span class="Delimiter">:(before "Globals")</span> <span class="Comment">// can't generate prototypes for these</span> +<span id="L226" class="LineNr">226 </span><span class="Comment">// from <a href="http://stackoverflow.com/questions/152643/idiomatic-c-for-reading-from-a-const-map">http://stackoverflow.com/questions/152643/idiomatic-c-for-reading-from-a-const-map</a></span> +<span id="L227" class="LineNr">227 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type& get<span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L228" class="LineNr">228 </span> <span class="Normal">typename</span> T::iterator iter<span class="Delimiter">(</span>map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">));</span> +<span id="L229" class="LineNr">229 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>iter == map<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L230" class="LineNr">230 </span> cerr << <span class="Constant">"get couldn't find key '"</span> << key << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L231" class="LineNr">231 </span> assert<span class="Delimiter">(</span>iter != map<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">());</span> +<span id="L232" class="LineNr">232 </span> <span class="Delimiter">}</span> +<span id="L233" class="LineNr">233 </span> <span class="Identifier">return</span> iter<span class="Delimiter">-></span>second<span class="Delimiter">;</span> +<span id="L234" class="LineNr">234 </span><span class="Delimiter">}</span> +<span id="L235" class="LineNr">235 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type <span class="Normal">const</span>& get<span class="Delimiter">(</span><span class="Normal">const</span> T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L236" class="LineNr">236 </span> <span class="Normal">typename</span> T::const_iterator iter<span class="Delimiter">(</span>map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">));</span> +<span id="L237" class="LineNr">237 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>iter == map<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L238" class="LineNr">238 </span> cerr << <span class="Constant">"get couldn't find key '"</span> << key << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L239" class="LineNr">239 </span> assert<span class="Delimiter">(</span>iter != map<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">());</span> +<span id="L240" class="LineNr">240 </span> <span class="Delimiter">}</span> +<span id="L241" class="LineNr">241 </span> <span class="Identifier">return</span> iter<span class="Delimiter">-></span>second<span class="Delimiter">;</span> +<span id="L242" class="LineNr">242 </span><span class="Delimiter">}</span> +<span id="L243" class="LineNr">243 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type <span class="Normal">const</span>& <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">,</span> <span class="Normal">typename</span> T::mapped_type <span class="Normal">const</span>& value<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L244" class="LineNr">244 </span> map[key] = value<span class="Delimiter">;</span> +<span id="L245" class="LineNr">245 </span> <span class="Identifier">return</span> map[key]<span class="Delimiter">;</span> +<span id="L246" class="LineNr">246 </span><span class="Delimiter">}</span> +<span id="L247" class="LineNr">247 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">bool</span> <a href='001help.cc.html#L247'>contains_key</a><span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L248" class="LineNr">248 </span> <span class="Identifier">return</span> map<span class="Delimiter">.</span>find<span class="Delimiter">(</span>key<span class="Delimiter">)</span> != map<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L249" class="LineNr">249 </span><span class="Delimiter">}</span> +<span id="L250" class="LineNr">250 </span><span class="Normal">template</span><<span class="Normal">typename</span> T> <span class="Normal">typename</span> T::mapped_type& <a href='001help.cc.html#L250'>get_or_insert</a><span class="Delimiter">(</span>T& map<span class="Delimiter">,</span> <span class="Normal">typename</span> T::key_type <span class="Normal">const</span>& key<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L251" class="LineNr">251 </span> <span class="Identifier">return</span> map[key]<span class="Delimiter">;</span> +<span id="L252" class="LineNr">252 </span><span class="Delimiter">}</span> +<span id="L253" class="LineNr">253 </span><span class="Comment">//: The contract: any container that relies on get_or_insert should never call</span> +<span id="L254" class="LineNr">254 </span><span class="Comment">//: contains_key.</span> +<span id="L255" class="LineNr">255 </span> +<span id="L256" class="LineNr">256 </span><span class="Comment">//: 7. istreams are a royal pain in the arse. You have to be careful about</span> +<span id="L257" class="LineNr">257 </span><span class="Comment">//: what subclass you try to putback into. You have to watch out for the pesky</span> +<span id="L258" class="LineNr">258 </span><span class="Comment">//: failbit and badbit. Just avoid eof() and use this helper instead.</span> +<span id="L259" class="LineNr">259 </span><span class="Delimiter">:(code)</span> +<span id="L260" class="LineNr">260 </span><span class="Normal">bool</span> <a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>istream& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L261" class="LineNr">261 </span> <span class="Identifier">return</span> in && !in<span class="Delimiter">.</span>eof<span class="Delimiter">();</span> +<span id="L262" class="LineNr">262 </span><span class="Delimiter">}</span> +<span id="L263" class="LineNr">263 </span> +<span id="L264" class="LineNr">264 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L265" class="LineNr">265 </span><span class="Comment">#include <assert.h></span> +<span id="L266" class="LineNr">266 </span> +<span id="L267" class="LineNr">267 </span><span class="Comment">#include <iostream></span> +<span id="L268" class="LineNr">268 </span><span class="Normal">using</span> std::istream<span class="Delimiter">;</span> +<span id="L269" class="LineNr">269 </span><span class="Normal">using</span> std::ostream<span class="Delimiter">;</span> +<span id="L270" class="LineNr">270 </span><span class="Normal">using</span> std::iostream<span class="Delimiter">;</span> +<span id="L271" class="LineNr">271 </span><span class="Normal">using</span> std::cin<span class="Delimiter">;</span> +<span id="L272" class="LineNr">272 </span><span class="Normal">using</span> std::cout<span class="Delimiter">;</span> +<span id="L273" class="LineNr">273 </span><span class="Normal">using</span> std::cerr<span class="Delimiter">;</span> +<span id="L274" class="LineNr">274 </span><span class="Comment">#include <iomanip></span> +<span id="L275" class="LineNr">275 </span> +<span id="L276" class="LineNr">276 </span><span class="Comment">#include <string.h></span> +<span id="L277" class="LineNr">277 </span><span class="Comment">#include <string></span> +<span id="L278" class="LineNr">278 </span><span class="Normal">using</span> std::string<span class="Delimiter">;</span> +<span id="L279" class="LineNr">279 </span> +<span id="L280" class="LineNr">280 </span><span class="Comment">#include <algorithm></span> +<span id="L281" class="LineNr">281 </span><span class="Normal">using</span> std::min<span class="Delimiter">;</span> +<span id="L282" class="LineNr">282 </span><span class="Normal">using</span> std::max<span class="Delimiter">;</span> </pre> </body> </html> diff --git a/html/subx/002test.cc.html b/html/subx/002test.cc.html index 59ee6642..89d83fe0 100644 --- a/html/subx/002test.cc.html +++ b/html/subx/002test.cc.html @@ -59,92 +59,117 @@ if ('onhashchange' in window) { </head> <body onload='JumpToLine();'> <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 "End Types")</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 "Globals")</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> Tests[] = <span class="Delimiter">{</span> -<span id="L16" class="LineNr">16 </span><span class="PreProc"> #include </span><span class="Constant">"test_list"</span> <span class="Comment">// auto-generated; see 'build' script</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 "End Globals")</span> -<span id="L20" class="LineNr">20 </span><span class="Normal">bool</span> <a href='002test.cc.html#L20'>Run_tests</a> = <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L21" class="LineNr">21 </span><span class="Normal">bool</span> <a href='002test.cc.html#L21'>Passed</a> = <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 "End Includes")</span> -<span id="L24" class="LineNr">24 </span><span class="PreProc">#define CHECK(X) \</span> -<span id="L25" class="LineNr">25 </span><span class="PreProc"> </span><span class="Normal">if</span><span class="PreProc"> (Passed && !(X)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span> -<span id="L26" class="LineNr">26 </span><span class="PreProc"> cerr << </span><span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span><span class="PreProc"> << __FUNCTION__ << </span><span class="Constant">"("</span><span class="PreProc"> << </span><span class="Constant">__FILE__</span><span class="PreProc"> << </span><span class="Constant">":"</span><span class="PreProc"> << </span><span class="Constant">__LINE__</span><span class="PreProc"> << </span><span class="Constant">"): "</span><span class="PreProc"> << #X << </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> \</span> -<span id="L27" class="LineNr">27 </span><span class="PreProc"> <a href='002test.cc.html#L21'>Passed</a> = </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(X</span><span class="Delimiter">,</span><span class="PreProc"> Y) \</span> -<span id="L32" class="LineNr">32 </span><span class="PreProc"> </span><span class="Normal">if</span><span class="PreProc"> (Passed && (X) != (Y)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span> -<span id="L33" class="LineNr">33 </span><span class="PreProc"> cerr << </span><span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span><span class="PreProc"> << __FUNCTION__ << </span><span class="Constant">"("</span><span class="PreProc"> << </span><span class="Constant">__FILE__</span><span class="PreProc"> << </span><span class="Constant">":"</span><span class="PreProc"> << </span><span class="Constant">__LINE__</span><span class="PreProc"> << </span><span class="Constant">"): "</span><span class="PreProc"> << #X << </span><span class="Constant">" == "</span><span class="PreProc"> << #Y << </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 << </span><span class="Constant">" got "</span><span class="PreProc"> << (X) << </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"> <a href='002test.cc.html#L21'>Passed</a> = </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 "End Reset")</span> -<span id="L40" class="LineNr">40 </span><a href='002test.cc.html#L21'>Passed</a> = <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 "End Commandline Parsing")</span> -<span id="L43" class="LineNr">43 </span><span class="Normal">if</span> <span class="Delimiter">(</span>argc > <span class="Constant">1</span> && <a href='001help.cc.html#L23'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"test"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L44" class="LineNr">44 </span> <a href='002test.cc.html#L20'>Run_tests</a> = <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 "End Main")</span> -<span id="L48" class="LineNr">48 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L20'>Run_tests</a><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>&t<span class="Delimiter">);</span> -<span id="L55" class="LineNr">55 </span> cerr << <span class="Constant">"C tests: "</span> << ctime<span class="Delimiter">(</span>&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 < <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='002test.cc.html#L15'>Tests</a><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests[<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 << "running .build/test_list line " << (i+1) << '\n';</span> -<span id="L58" class="LineNr">58 </span> <a href='002test.cc.html#L74'>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><a href='002test.cc.html#L21'>Passed</a><span class="Delimiter">)</span> cerr << <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 << <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 > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L65" class="LineNr">65 </span> cerr << num_failures << <span class="Constant">" failure"</span> -<span id="L66" class="LineNr">66 </span> << <span class="Delimiter">(</span>num_failures > <span class="Constant">1</span> ? <span class="Constant">"s"</span> : <span class="Constant">""</span><span class="Delimiter">)</span> -<span id="L67" class="LineNr">67 </span> << <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">:(code)</span> -<span id="L74" class="LineNr">74 </span><span class="Normal">void</span> <a href='002test.cc.html#L74'>run_test</a><span class="Delimiter">(</span><span class="Normal">size_t</span> i<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L75" class="LineNr">75 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i >= <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='002test.cc.html#L15'>Tests</a><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests[<span class="Constant">0</span>]<span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L76" class="LineNr">76 </span> cerr << <span class="Constant">"no test "</span> << i << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L77" class="LineNr">77 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L78" class="LineNr">78 </span> <span class="Delimiter">}</span> -<span id="L79" class="LineNr">79 </span> <a href='000organization.cc.html#L139'>reset</a><span class="Delimiter">();</span> -<span id="L80" class="LineNr">80 </span> <span class="Comment">// End Test Setup</span> -<span id="L81" class="LineNr">81 </span> <span class="Delimiter">(</span>*Tests[i]<span class="Delimiter">)();</span> -<span id="L82" class="LineNr">82 </span> <span class="Comment">// End Test Teardown</span> -<span id="L83" class="LineNr">83 </span><span class="Delimiter">}</span> -<span id="L84" class="LineNr">84 </span> -<span id="L85" class="LineNr">85 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L86" class="LineNr">86 </span><span class="PreProc">#include </span><span class="Constant"><stdlib.h></span> +<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 "End Types")</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 "Globals")</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> Tests[] = <span class="Delimiter">{</span> +<span id="L16" class="LineNr"> 16 </span><span class="PreProc"> #include </span><span class="Constant">"test_list"</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 "End Globals")</span> +<span id="L20" class="LineNr"> 20 </span><span class="Normal">bool</span> <a href='002test.cc.html#L20'>Run_tests</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L21" class="LineNr"> 21 </span><span class="Normal">bool</span> <a href='002test.cc.html#L21'>Passed</a> =<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 "End Includes")</span> +<span id="L24" class="LineNr"> 24 </span><span class="Comment">#define CHECK(X) \</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L21'>Passed</a> && !<span class="Delimiter">(</span>X<span class="Delimiter">))</span> <span class="Delimiter">{</span> \ +<span id="L26" class="LineNr"> 26 </span> cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << __FUNCTION__ << <span class="Constant">"("</span> << <span class="Constant">__FILE__</span> << <span class="Constant">":"</span> << <span class="Constant">__LINE__</span> << <span class="Constant">"): "</span> << <span class="Comment">#X << '\n'; \</span> +<span id="L27" class="LineNr"> 27 </span> <a href='002test.cc.html#L21'>Passed</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> \ +<span id="L28" class="LineNr"> 28 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span> \ +<span id="L29" class="LineNr"> 29 </span> <span class="Delimiter">}</span> +<span id="L30" class="LineNr"> 30 </span> +<span id="L31" class="LineNr"> 31 </span><span class="Comment">#define CHECK_EQ(X, Y) \</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L21'>Passed</a> && <span class="Delimiter">(</span>X<span class="Delimiter">)</span> != <span class="Delimiter">(</span>Y<span class="Delimiter">))</span> <span class="Delimiter">{</span> \ +<span id="L33" class="LineNr"> 33 </span> cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << __FUNCTION__ << <span class="Constant">"("</span> << <span class="Constant">__FILE__</span> << <span class="Constant">":"</span> << <span class="Constant">__LINE__</span> << <span class="Constant">"): "</span> << <span class="Comment">#X << " == " << #Y << '\n'; \</span> +<span id="L34" class="LineNr"> 34 </span> cerr << <span class="Constant">" got "</span> << <span class="Delimiter">(</span>X<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> BEWARE: multiple eval </span><span class="Comment">*/</span> \ +<span id="L35" class="LineNr"> 35 </span> <a href='002test.cc.html#L21'>Passed</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> \ +<span id="L36" class="LineNr"> 36 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span> \ +<span id="L37" class="LineNr"> 37 </span> <span class="Delimiter">}</span> +<span id="L38" class="LineNr"> 38 </span> +<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">:(before "End Reset")</span> +<span id="L40" class="LineNr"> 40 </span><a href='002test.cc.html#L21'>Passed</a> =<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 "End Commandline Parsing")</span> +<span id="L43" class="LineNr"> 43 </span><span class="Normal">if</span> <span class="Delimiter">(</span>argc > <span class="Constant">1</span> && <a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"test"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L44" class="LineNr"> 44 </span> <a href='002test.cc.html#L20'>Run_tests</a> =<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 "End Main")</span> +<span id="L48" class="LineNr"> 48 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L20'>Run_tests</a><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>&t<span class="Delimiter">);</span> +<span id="L55" class="LineNr"> 55 </span> cerr << <span class="Constant">"C tests: "</span> << ctime<span class="Delimiter">(</span>&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 < <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='002test.cc.html#L15'>Tests</a><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests[<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 << "running " << Test_names[i] << '\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><a href='002test.cc.html#L21'>Passed</a><span class="Delimiter">)</span> cerr << <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 << <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 > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L65" class="LineNr"> 65 </span> cerr << num_failures << <span class="Constant">" failure"</span> +<span id="L66" class="LineNr"> 66 </span> << <span class="Delimiter">(</span>num_failures > <span class="Constant">1</span> ? <span class="Constant">"s"</span> : <span class="Constant">""</span><span class="Delimiter">)</span> +<span id="L67" class="LineNr"> 67 </span> << <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 "End Main")</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 << <span class="Constant">"nothing to do</span><span class="cSpecial">\n</span><span class="Constant">"</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 >= <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='002test.cc.html#L15'>Tests</a><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests[<span class="Constant">0</span>]<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L83" class="LineNr"> 83 </span> cerr << <span class="Constant">"no test "</span> << i << <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>*Tests[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 "Globals")</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 Test_names[] = <span class="Delimiter">{</span> +<span id="L96" class="LineNr"> 96 </span><span class="PreProc"> #include </span><span class="Constant">"test_name_list"</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 "Test Runs")</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">"test_"</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">"test_"</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 < <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='002test.cc.html#L15'>Tests</a><span class="Delimiter">)</span>/<span class="Normal">sizeof</span><span class="Delimiter">(</span>Tests[<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>Test_names[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><a href='002test.cc.html#L21'>Passed</a><span class="Delimiter">)</span> cerr << <span class="Constant">".</span><span class="cSpecial">\n</span><span class="Constant">"</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 "End Includes")</span> +<span id="L111" class="LineNr">111 </span><span class="Comment">#include <stdlib.h></span> </pre> </body> </html> diff --git a/html/subx/003trace.cc.html b/html/subx/003trace.cc.html index da4d4f00..6fb7af1a 100644 --- a/html/subx/003trace.cc.html +++ b/html/subx/003trace.cc.html @@ -22,7 +22,6 @@ a:hover { text-decoration: underline; } .LineNr { color: #444444; } .Identifier { color: #c0a020; } .Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } -.PreProc { color: #800080; } .cSpecial { color: #008000; } --> </style> @@ -137,325 +136,346 @@ if ('onhashchange' in window) { <span id="L77" class="LineNr"> 77 </span><span class="Delimiter">};</span> <span id="L78" class="LineNr"> 78 </span> <span id="L79" class="LineNr"> 79 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L80" class="LineNr"> 80 </span><span class="Normal">bool</span> Hide_errors = <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L81" class="LineNr"> 81 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L81'>Dump_trace</a> = <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L82" class="LineNr"> 82 </span>string <a href='003trace.cc.html#L82'>Dump_label</a> = <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L80" class="LineNr"> 80 </span><span class="Normal">bool</span> Hide_errors =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// if set, don't print even error trace lines to screen</span> +<span id="L81" class="LineNr"> 81 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L81'>Dump_trace</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// if set, print trace lines to screen</span> +<span id="L82" class="LineNr"> 82 </span>string <a href='003trace.cc.html#L82'>Dump_label</a> = <span class="Constant">""</span><span class="Delimiter">;</span> <span class="Comment">// if set, print trace lines matching a single label to screen</span> <span id="L83" class="LineNr"> 83 </span><span class="Delimiter">:(before "End Reset")</span> -<span id="L84" class="LineNr"> 84 </span>Hide_errors = <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L85" class="LineNr"> 85 </span><a href='003trace.cc.html#L81'>Dump_trace</a> = <span class="Constant">false</span><span class="Delimiter">;</span> +<span id="L84" class="LineNr"> 84 </span>Hide_errors =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L85" class="LineNr"> 85 </span><a href='003trace.cc.html#L81'>Dump_trace</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> <span id="L86" class="LineNr"> 86 </span><a href='003trace.cc.html#L82'>Dump_label</a> = <span class="Constant">""</span><span class="Delimiter">;</span> <span id="L87" class="LineNr"> 87 </span> -<span id="L88" class="LineNr"> 88 </span><span class="Delimiter">:(before "End Types")</span> -<span id="L89" class="LineNr"> 89 </span><span class="Comment">// Pre-define some global constants that trace_stream needs to know about.</span> -<span id="L90" class="LineNr"> 90 </span><span class="Comment">// Since they're in the Types section, they'll be included in any cleaved</span> -<span id="L91" class="LineNr"> 91 </span><span class="Comment">// compilation units. So no extern linkage.</span> -<span id="L92" class="LineNr"> 92 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='003trace.cc.html#L92'>Max_depth</a> = <span class="Constant">9999</span><span class="Delimiter">;</span> -<span id="L93" class="LineNr"> 93 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='003trace.cc.html#L93'>Error_depth</a> = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// definitely always print errors</span> -<span id="L94" class="LineNr"> 94 </span> -<span id="L95" class="LineNr"> 95 </span><span class="Normal">struct</span> trace_stream <span class="Delimiter">{</span> -<span id="L96" class="LineNr"> 96 </span> vector<trace_line> <a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">;</span> -<span id="L97" class="LineNr"> 97 </span> <span class="Comment">// accumulator for current line</span> -<span id="L98" class="LineNr"> 98 </span> ostringstream* <a href='003trace.cc.html#L98'>curr_stream</a><span class="Delimiter">;</span> -<span id="L99" class="LineNr"> 99 </span> string <a href='003trace.cc.html#L99'>curr_label</a><span class="Delimiter">;</span> -<span id="L100" class="LineNr">100 </span> <span class="Normal">int</span> <a href='003trace.cc.html#L100'>curr_depth</a><span class="Delimiter">;</span> -<span id="L101" class="LineNr">101 </span> <span class="Normal">int</span> <a href='003trace.cc.html#L101'>callstack_depth</a><span class="Delimiter">;</span> -<span id="L102" class="LineNr">102 </span> <span class="Normal">int</span> <a href='003trace.cc.html#L102'>collect_depth</a><span class="Delimiter">;</span> -<span id="L103" class="LineNr">103 </span> ofstream <a href='003trace.cc.html#L103'>null_stream</a><span class="Delimiter">;</span> <span class="Comment">// never opens a file, so writes silently fail</span> -<span id="L104" class="LineNr">104 </span> trace_stream<span class="Delimiter">()</span> :<a href='003trace.cc.html#L98'>curr_stream</a><span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> <a href='003trace.cc.html#L100'>curr_depth</a><span class="Delimiter">(</span><a href='003trace.cc.html#L92'>Max_depth</a><span class="Delimiter">),</span> <a href='003trace.cc.html#L101'>callstack_depth</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <a href='003trace.cc.html#L102'>collect_depth</a><span class="Delimiter">(</span><a href='003trace.cc.html#L92'>Max_depth</a><span class="Delimiter">)</span> <span class="Delimiter">{}</span> -<span id="L105" class="LineNr">105 </span> <a href='003trace.cc.html#L105'>~trace_stream</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L98'>curr_stream</a><span class="Delimiter">)</span> <span class="Normal">delete</span> <a href='003trace.cc.html#L98'>curr_stream</a><span class="Delimiter">;</span> <span class="Delimiter">}</span> -<span id="L106" class="LineNr">106 </span> -<span id="L107" class="LineNr">107 </span> ostream& stream<span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L108" class="LineNr">108 </span> <span class="Identifier">return</span> stream<span class="Delimiter">(</span><a href='003trace.cc.html#L92'>Max_depth</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L73'>label</a><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> ostream& stream<span class="Delimiter">(</span><span class="Normal">int</span> <a href='003trace.cc.html#L72'>depth</a><span class="Delimiter">,</span> string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L112" class="LineNr">112 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L72'>depth</a> > <a href='003trace.cc.html#L102'>collect_depth</a><span class="Delimiter">)</span> <span class="Identifier">return</span> <a href='003trace.cc.html#L103'>null_stream</a><span class="Delimiter">;</span> -<span id="L113" class="LineNr">113 </span> <a href='003trace.cc.html#L98'>curr_stream</a> = <span class="Normal">new</span> ostringstream<span class="Delimiter">;</span> -<span id="L114" class="LineNr">114 </span> <a href='003trace.cc.html#L99'>curr_label</a> = <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">;</span> -<span id="L115" class="LineNr">115 </span> <a href='003trace.cc.html#L100'>curr_depth</a> = <a href='003trace.cc.html#L72'>depth</a><span class="Delimiter">;</span> -<span id="L116" class="LineNr">116 </span> <span class="Identifier">return</span> *curr_stream<span class="Delimiter">;</span> -<span id="L117" class="LineNr">117 </span> <span class="Delimiter">}</span> -<span id="L118" class="LineNr">118 </span> -<span id="L119" class="LineNr">119 </span> <span class="Comment">// be sure to call this before messing with curr_stream or curr_label</span> -<span id="L120" class="LineNr">120 </span> <span class="Normal">void</span> <a href='003trace.cc.html#L126'>newline</a><span class="Delimiter">();</span> -<span id="L121" class="LineNr">121 </span> <span class="Comment">// useful for debugging</span> -<span id="L122" class="LineNr">122 </span> string <a href='003trace.cc.html#L142'>readable_contents</a><span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">);</span> <span class="Comment">// empty label = show everything</span> -<span id="L123" class="LineNr">123 </span><span class="Delimiter">};</span> -<span id="L124" class="LineNr">124 </span> -<span id="L125" class="LineNr">125 </span><span class="Delimiter">:(code)</span> -<span id="L126" class="LineNr">126 </span><span class="Normal">void</span> trace_stream::<a href='003trace.cc.html#L126'>newline</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L127" class="LineNr">127 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!curr_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> -<span id="L128" class="LineNr">128 </span> string curr_contents = <a href='003trace.cc.html#L98'>curr_stream</a><span class="Delimiter">-></span>str<span class="Delimiter">();</span> -<span id="L129" class="LineNr">129 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!curr_contents<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L130" class="LineNr">130 </span> <a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>trace_line<span class="Delimiter">(</span><a href='003trace.cc.html#L100'>curr_depth</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><a href='003trace.cc.html#L99'>curr_label</a><span class="Delimiter">),</span> curr_contents<span class="Delimiter">));</span> <span class="Comment">// preserve indent in contents</span> -<span id="L131" class="LineNr">131 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>!Hide_errors && <a href='003trace.cc.html#L99'>curr_label</a> == <span class="Constant">"error"</span><span class="Delimiter">)</span> -<span id="L132" class="LineNr">132 </span> || <a href='003trace.cc.html#L81'>Dump_trace</a> -<span id="L133" class="LineNr">133 </span> || <span class="Delimiter">(</span>!Dump_label<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> && <a href='003trace.cc.html#L99'>curr_label</a> == <a href='003trace.cc.html#L82'>Dump_label</a><span class="Delimiter">))</span> -<span id="L134" class="LineNr">134 </span> cerr << <a href='003trace.cc.html#L99'>curr_label</a> << <span class="Constant">": "</span> << curr_contents << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L135" class="LineNr">135 </span> <span class="Delimiter">}</span> -<span id="L136" class="LineNr">136 </span> <span class="Normal">delete</span> <a href='003trace.cc.html#L98'>curr_stream</a><span class="Delimiter">;</span> -<span id="L137" class="LineNr">137 </span> <a href='003trace.cc.html#L98'>curr_stream</a> = <span class="Constant">NULL</span><span class="Delimiter">;</span> -<span id="L138" class="LineNr">138 </span> <a href='003trace.cc.html#L99'>curr_label</a><span class="Delimiter">.</span>clear<span class="Delimiter">();</span> -<span id="L139" class="LineNr">139 </span> <a href='003trace.cc.html#L100'>curr_depth</a> = <a href='003trace.cc.html#L92'>Max_depth</a><span class="Delimiter">;</span> -<span id="L140" class="LineNr">140 </span><span class="Delimiter">}</span> -<span id="L141" class="LineNr">141 </span> -<span id="L142" class="LineNr">142 </span>string trace_stream::<a href='003trace.cc.html#L142'>readable_contents</a><span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L143" class="LineNr">143 </span> ostringstream output<span class="Delimiter">;</span> -<span id="L144" class="LineNr">144 </span> <a href='003trace.cc.html#L73'>label</a> = <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">);</span> -<span id="L145" class="LineNr">145 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> -<span id="L146" class="LineNr">146 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || <a href='003trace.cc.html#L73'>label</a> == p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L147" class="LineNr">147 </span> output << std::setw<span class="Delimiter">(</span><span class="Constant">4</span><span class="Delimiter">)</span> << p<span class="Delimiter">-></span><a href='003trace.cc.html#L72'>depth</a> << <span class="Constant">' '</span> << p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a> << <span class="Constant">": "</span> << p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> -<span id="L148" class="LineNr">148 </span> <span class="Delimiter">}</span> -<span id="L149" class="LineNr">149 </span> <span class="Identifier">return</span> output<span class="Delimiter">.</span>str<span class="Delimiter">();</span> -<span id="L150" class="LineNr">150 </span><span class="Delimiter">}</span> -<span id="L151" class="LineNr">151 </span> -<span id="L152" class="LineNr">152 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L153" class="LineNr">153 </span>trace_stream* <a href='003trace.cc.html#L153'>Trace_stream</a> = <span class="Constant">NULL</span><span class="Delimiter">;</span> -<span id="L154" class="LineNr">154 </span><span class="Normal">int</span> <a href='003trace.cc.html#L154'>Trace_errors</a> = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// used only when Trace_stream is NULL</span> -<span id="L155" class="LineNr">155 </span> -<span id="L156" class="LineNr">156 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L157" class="LineNr">157 </span><span class="PreProc">#define CLEAR_TRACE </span><span class="Normal">delete</span><span class="PreProc"> Trace_stream</span><span class="Delimiter">,</span><span class="PreProc"> Trace_stream = </span><span class="Normal">new</span><span class="PreProc"> trace_stream</span><span class="Delimiter">;</span> -<span id="L158" class="LineNr">158 </span> -<span id="L159" class="LineNr">159 </span><span class="Comment">// Top-level helper. IMPORTANT: can't nest</span> -<span id="L160" class="LineNr">160 </span><span class="PreProc">#define trace(</span><span class="Delimiter">...</span><span class="PreProc">) !Trace_stream ? cerr </span><span class="Comment">/*</span><span class="Comment">print nothing</span><span class="Comment">*/</span><span class="PreProc"> : Trace_stream</span><span class="Delimiter">-></span><span class="PreProc">stream(__VA_ARGS__)</span> -<span id="L161" class="LineNr">161 </span> -<span id="L162" class="LineNr">162 </span><span class="Comment">// Just for debugging; 'git log' should never show any calls to 'dbg'.</span> -<span id="L163" class="LineNr">163 </span><span class="PreProc">#define dbg trace(</span><span class="Constant">0</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Constant">"a"</span><span class="PreProc">)</span> -<span id="L164" class="LineNr">164 </span><span class="PreProc">#define DUMP(label) </span><span class="Normal">if</span><span class="PreProc"> (Trace_stream) cerr << Trace_stream</span><span class="Delimiter">-></span><span class="PreProc">readable_contents(label)</span><span class="Delimiter">;</span> -<span id="L165" class="LineNr">165 </span> -<span id="L166" class="LineNr">166 </span><span class="Comment">// Errors are a special layer.</span> -<span id="L167" class="LineNr">167 </span><span class="PreProc">#define raise (!Trace_stream ? (++Trace_errors</span><span class="Delimiter">,</span><span class="PreProc">cerr) </span><span class="Comment">/*</span><span class="Comment">do print</span><span class="Comment">*/</span><span class="PreProc"> : Trace_stream</span><span class="Delimiter">-></span><span class="PreProc">stream(Error_depth</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Constant">"error"</span><span class="PreProc">))</span> -<span id="L168" class="LineNr">168 </span><span class="Comment">// If we aren't yet sure how to deal with some corner case, use assert_for_now</span> -<span id="L169" class="LineNr">169 </span><span class="Comment">// to indicate that it isn't an inviolable invariant.</span> -<span id="L170" class="LineNr">170 </span><span class="PreProc">#define assert_for_now assert</span> -<span id="L171" class="LineNr">171 </span> -<span id="L172" class="LineNr">172 </span><span class="Comment">// Inside tests, fail any tests that displayed (unexpected) errors.</span> -<span id="L173" class="LineNr">173 </span><span class="Comment">// Expected errors in tests should always be hidden and silently checked for.</span> -<span id="L174" class="LineNr">174 </span><span class="Delimiter">:(before "End Test Teardown")</span> -<span id="L175" class="LineNr">175 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L21'>Passed</a> && !Hide_errors && <a href='003trace.cc.html#L179'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> -<span id="L176" class="LineNr">176 </span> <a href='002test.cc.html#L21'>Passed</a> = <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span> -<span id="L178" class="LineNr">178 </span><span class="Delimiter">:(code)</span> -<span id="L179" class="LineNr">179 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L179'>trace_contains_errors</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L180" class="LineNr">180 </span> <span class="Identifier">return</span> <a href='003trace.cc.html#L154'>Trace_errors</a> > <span class="Constant">0</span> || trace_count<span class="Delimiter">(</span><span class="Constant">"error"</span><span class="Delimiter">)</span> > <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L181" class="LineNr">181 </span><span class="Delimiter">}</span> -<span id="L182" class="LineNr">182 </span> -<span id="L183" class="LineNr">183 </span><span class="Delimiter">:(before "End Types")</span> -<span id="L184" class="LineNr">184 </span><span class="Normal">struct</span> <a href='003trace.cc.html#L184'>end</a> <span class="Delimiter">{};</span> -<span id="L185" class="LineNr">185 </span><span class="Delimiter">:(code)</span> -<span id="L186" class="LineNr">186 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> <a href='001help.cc.html#L208'>unused</a> <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L187" class="LineNr">187 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">)</span> <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L126'>newline</a><span class="Delimiter">();</span> -<span id="L188" class="LineNr">188 </span> <span class="Identifier">return</span> os<span class="Delimiter">;</span> -<span id="L189" class="LineNr">189 </span><span class="Delimiter">}</span> +<span id="L88" class="LineNr"> 88 </span><span class="Comment">//: Support for tracing an entire run.</span> +<span id="L89" class="LineNr"> 89 </span><span class="Comment">//: Traces can have a lot of overhead, so only turn them on when asked.</span> +<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">:(before "End Commandline Options(*arg)")</span> +<span id="L91" class="LineNr"> 91 </span><span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>*arg<span class="Delimiter">,</span> <span class="Constant">"--trace"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L92" class="LineNr"> 92 </span> <a href='003trace.cc.html#L221'>Save_trace</a> =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">}</span> +<span id="L94" class="LineNr"> 94 </span><span class="Delimiter">:(before "End Commandline Parsing")</span> +<span id="L95" class="LineNr"> 95 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L221'>Save_trace</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L96" class="LineNr"> 96 </span> cerr << <span class="Constant">"initializing <a href='003trace.cc.html#L189'>trace</a></span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L97" class="LineNr"> 97 </span> <a href='003trace.cc.html#L182'>Trace_stream</a> = <span class="Normal">new</span> trace_stream<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">:(code)</span> +<span id="L100" class="LineNr">100 </span><span class="Normal">void</span> <a href='003trace.cc.html#L100'>cleanup_main</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L101" class="LineNr">101 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L102" class="LineNr">102 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L221'>Save_trace</a><span class="Delimiter">)</span> +<span id="L103" class="LineNr">103 </span> <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L141'>save</a><span class="Delimiter">();</span> +<span id="L104" class="LineNr">104 </span> <span class="Normal">delete</span> <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">;</span> +<span id="L105" class="LineNr">105 </span> <a href='003trace.cc.html#L182'>Trace_stream</a> = <span class="Constant">NULL</span><span class="Delimiter">;</span> +<span id="L106" class="LineNr">106 </span><span class="Delimiter">}</span> +<span id="L107" class="LineNr">107 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L108" class="LineNr">108 </span>atexit<span class="Delimiter">(</span><a href='003trace.cc.html#L100'>cleanup_main</a><span class="Delimiter">);</span> +<span id="L109" class="LineNr">109 </span> +<span id="L110" class="LineNr">110 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L111" class="LineNr">111 </span><span class="Comment">// Pre-define some global constants that trace_stream needs to know about.</span> +<span id="L112" class="LineNr">112 </span><span class="Comment">// Since they're in the Types section, they'll be included in any cleaved</span> +<span id="L113" class="LineNr">113 </span><span class="Comment">// compilation units. So no extern linkage.</span> +<span id="L114" class="LineNr">114 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='003trace.cc.html#L114'>Max_depth</a> = <span class="Constant">9999</span><span class="Delimiter">;</span> +<span id="L115" class="LineNr">115 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='003trace.cc.html#L115'>Error_depth</a> = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// definitely always print errors</span> +<span id="L116" class="LineNr">116 </span> +<span id="L117" class="LineNr">117 </span><span class="Normal">struct</span> trace_stream <span class="Delimiter">{</span> +<span id="L118" class="LineNr">118 </span> vector<trace_line> <a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">;</span> +<span id="L119" class="LineNr">119 </span> <span class="Comment">// accumulator for current line</span> +<span id="L120" class="LineNr">120 </span> ostringstream* <a href='003trace.cc.html#L120'>curr_stream</a><span class="Delimiter">;</span> +<span id="L121" class="LineNr">121 </span> string <a href='003trace.cc.html#L121'>curr_label</a><span class="Delimiter">;</span> +<span id="L122" class="LineNr">122 </span> <span class="Normal">int</span> <a href='003trace.cc.html#L122'>curr_depth</a><span class="Delimiter">;</span> +<span id="L123" class="LineNr">123 </span> <span class="Normal">int</span> <a href='003trace.cc.html#L123'>callstack_depth</a><span class="Delimiter">;</span> +<span id="L124" class="LineNr">124 </span> <span class="Normal">int</span> <a href='003trace.cc.html#L124'>collect_depth</a><span class="Delimiter">;</span> +<span id="L125" class="LineNr">125 </span> ofstream<span class="Constant"> null</span>_stream<span class="Delimiter">;</span> <span class="Comment">// never opens a file, so writes silently fail</span> +<span id="L126" class="LineNr">126 </span> trace_stream<span class="Delimiter">()</span> :<a href='003trace.cc.html#L120'>curr_stream</a><span class="Delimiter">(</span><span class="Constant">NULL</span><span class="Delimiter">),</span> <a href='003trace.cc.html#L122'>curr_depth</a><span class="Delimiter">(</span><a href='003trace.cc.html#L114'>Max_depth</a><span class="Delimiter">),</span> <a href='003trace.cc.html#L123'>callstack_depth</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <a href='003trace.cc.html#L124'>collect_depth</a><span class="Delimiter">(</span><a href='003trace.cc.html#L114'>Max_depth</a><span class="Delimiter">)</span> <span class="Delimiter">{}</span> +<span id="L127" class="LineNr">127 </span> <a href='003trace.cc.html#L127'>~trace_stream</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L120'>curr_stream</a><span class="Delimiter">)</span> <span class="Normal">delete</span> <a href='003trace.cc.html#L120'>curr_stream</a><span class="Delimiter">;</span> <span class="Delimiter">}</span> +<span id="L128" class="LineNr">128 </span> +<span id="L129" class="LineNr">129 </span> ostream& stream<span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L130" class="LineNr">130 </span> <span class="Identifier">return</span> stream<span class="Delimiter">(</span><a href='003trace.cc.html#L114'>Max_depth</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">);</span> +<span id="L131" class="LineNr">131 </span> <span class="Delimiter">}</span> +<span id="L132" class="LineNr">132 </span> +<span id="L133" class="LineNr">133 </span> ostream& stream<span class="Delimiter">(</span><span class="Normal">int</span> <a href='003trace.cc.html#L72'>depth</a><span class="Delimiter">,</span> string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L134" class="LineNr">134 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L72'>depth</a> > <a href='003trace.cc.html#L124'>collect_depth</a><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> null</span>_stream<span class="Delimiter">;</span> +<span id="L135" class="LineNr">135 </span> <a href='003trace.cc.html#L120'>curr_stream</a> = <span class="Normal">new</span> ostringstream<span class="Delimiter">;</span> +<span id="L136" class="LineNr">136 </span> <a href='003trace.cc.html#L121'>curr_label</a> = <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">;</span> +<span id="L137" class="LineNr">137 </span> <a href='003trace.cc.html#L122'>curr_depth</a> = <a href='003trace.cc.html#L72'>depth</a><span class="Delimiter">;</span> +<span id="L138" class="LineNr">138 </span> <span class="Identifier">return</span> *curr_stream<span class="Delimiter">;</span> +<span id="L139" class="LineNr">139 </span> <span class="Delimiter">}</span> +<span id="L140" class="LineNr">140 </span> +<span id="L141" class="LineNr">141 </span> <span class="Normal">void</span> <a href='003trace.cc.html#L141'>save</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L142" class="LineNr">142 </span> cerr << <span class="Constant">"saving <a href='003trace.cc.html#L189'>trace</a> to 'last_run'</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L143" class="LineNr">143 </span> ofstream fout<span class="Delimiter">(</span><span class="Constant">"last_run"</span><span class="Delimiter">);</span> +<span id="L144" class="LineNr">144 </span> fout << <a href='003trace.cc.html#L171'>readable_contents</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L145" class="LineNr">145 </span> fout<span class="Delimiter">.</span>close<span class="Delimiter">();</span> +<span id="L146" class="LineNr">146 </span> <span class="Delimiter">}</span> +<span id="L147" class="LineNr">147 </span> +<span id="L148" class="LineNr">148 </span> <span class="Comment">// be sure to call this before messing with curr_stream or curr_label</span> +<span id="L149" class="LineNr">149 </span> <span class="Normal">void</span> <a href='003trace.cc.html#L155'>newline</a><span class="Delimiter">();</span> +<span id="L150" class="LineNr">150 </span> <span class="Comment">// useful for debugging</span> +<span id="L151" class="LineNr">151 </span> string <a href='003trace.cc.html#L171'>readable_contents</a><span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">);</span> <span class="Comment">// empty label = show everything</span> +<span id="L152" class="LineNr">152 </span><span class="Delimiter">};</span> +<span id="L153" class="LineNr">153 </span> +<span id="L154" class="LineNr">154 </span><span class="Delimiter">:(code)</span> +<span id="L155" class="LineNr">155 </span><span class="Normal">void</span> trace_stream::<a href='003trace.cc.html#L155'>newline</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L156" class="LineNr">156 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!curr_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L157" class="LineNr">157 </span> string curr_contents = <a href='003trace.cc.html#L120'>curr_stream</a><span class="Delimiter">-></span>str<span class="Delimiter">();</span> +<span id="L158" class="LineNr">158 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!curr_contents<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L159" class="LineNr">159 </span> <a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>trace_line<span class="Delimiter">(</span><a href='003trace.cc.html#L122'>curr_depth</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><a href='003trace.cc.html#L121'>curr_label</a><span class="Delimiter">),</span> curr_contents<span class="Delimiter">));</span> <span class="Comment">// preserve indent in contents</span> +<span id="L160" class="LineNr">160 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>!Hide_errors && <a href='003trace.cc.html#L121'>curr_label</a> == <span class="Constant">"error"</span><span class="Delimiter">)</span> +<span id="L161" class="LineNr">161 </span> || <a href='003trace.cc.html#L81'>Dump_trace</a> +<span id="L162" class="LineNr">162 </span> || <span class="Delimiter">(</span>!Dump_label<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> && <a href='003trace.cc.html#L121'>curr_label</a> == <a href='003trace.cc.html#L82'>Dump_label</a><span class="Delimiter">))</span> +<span id="L163" class="LineNr">163 </span> cerr << <a href='003trace.cc.html#L121'>curr_label</a> << <span class="Constant">": "</span> << curr_contents << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L164" class="LineNr">164 </span> <span class="Delimiter">}</span> +<span id="L165" class="LineNr">165 </span> <span class="Normal">delete</span> <a href='003trace.cc.html#L120'>curr_stream</a><span class="Delimiter">;</span> +<span id="L166" class="LineNr">166 </span> <a href='003trace.cc.html#L120'>curr_stream</a> = <span class="Constant">NULL</span><span class="Delimiter">;</span> +<span id="L167" class="LineNr">167 </span> <a href='003trace.cc.html#L121'>curr_label</a><span class="Delimiter">.</span>clear<span class="Delimiter">();</span> +<span id="L168" class="LineNr">168 </span> <a href='003trace.cc.html#L122'>curr_depth</a> = <a href='003trace.cc.html#L114'>Max_depth</a><span class="Delimiter">;</span> +<span id="L169" class="LineNr">169 </span><span class="Delimiter">}</span> +<span id="L170" class="LineNr">170 </span> +<span id="L171" class="LineNr">171 </span>string trace_stream::<a href='003trace.cc.html#L171'>readable_contents</a><span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L172" class="LineNr">172 </span> ostringstream output<span class="Delimiter">;</span> +<span id="L173" class="LineNr">173 </span> <a href='003trace.cc.html#L73'>label</a> = <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">);</span> +<span id="L174" class="LineNr">174 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L175" class="LineNr">175 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">.</span>empty<span class="Delimiter">()</span> || <a href='003trace.cc.html#L73'>label</a> == p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L176" class="LineNr">176 </span> output << std::setw<span class="Delimiter">(</span><span class="Constant">4</span><span class="Delimiter">)</span> << p<span class="Delimiter">-></span><a href='003trace.cc.html#L72'>depth</a> << <span class="Constant">' '</span> << p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a> << <span class="Constant">": "</span> << p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L177" class="LineNr">177 </span> <span class="Delimiter">}</span> +<span id="L178" class="LineNr">178 </span> <span class="Identifier">return</span> output<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L179" class="LineNr">179 </span><span class="Delimiter">}</span> +<span id="L180" class="LineNr">180 </span> +<span id="L181" class="LineNr">181 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L182" class="LineNr">182 </span>trace_stream* <a href='003trace.cc.html#L182'>Trace_stream</a> = <span class="Constant">NULL</span><span class="Delimiter">;</span> +<span id="L183" class="LineNr">183 </span><span class="Normal">int</span> <a href='003trace.cc.html#L183'>Trace_errors</a> = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// used only when Trace_stream is NULL</span> +<span id="L184" class="LineNr">184 </span> +<span id="L185" class="LineNr">185 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L186" class="LineNr">186 </span><span class="Comment">#define CLEAR_TRACE delete Trace_stream, Trace_stream = new trace_stream;</span> +<span id="L187" class="LineNr">187 </span> +<span id="L188" class="LineNr">188 </span><span class="Comment">// Top-level helper. IMPORTANT: can't nest</span> +<span id="L189" class="LineNr">189 </span><span class="Comment">#define trace(...) !Trace_stream ? cerr /*print nothing*/ : Trace_stream->stream(__VA_ARGS__)</span> <span id="L190" class="LineNr">190 </span> -<span id="L191" class="LineNr">191 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L192" class="LineNr">192 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L192'>Save_trace</a> = <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L193" class="LineNr">193 </span> -<span id="L194" class="LineNr">194 </span><span class="Comment">// Trace_stream is a resource, lease_tracer uses RAII to manage it.</span> -<span id="L195" class="LineNr">195 </span><span class="Delimiter">:(before "End Types")</span> -<span id="L196" class="LineNr">196 </span><span class="Normal">struct</span> lease_tracer <span class="Delimiter">{</span> -<span id="L197" class="LineNr">197 </span> lease_tracer<span class="Delimiter">();</span> -<span id="L198" class="LineNr">198 </span> <a href='003trace.cc.html#L202'>~lease_tracer</a><span class="Delimiter">();</span> -<span id="L199" class="LineNr">199 </span><span class="Delimiter">};</span> -<span id="L200" class="LineNr">200 </span><span class="Delimiter">:(code)</span> -<span id="L201" class="LineNr">201 </span>lease_tracer::lease_tracer<span class="Delimiter">()</span> <span class="Delimiter">{</span> <a href='003trace.cc.html#L153'>Trace_stream</a> = <span class="Normal">new</span> trace_stream<span class="Delimiter">;</span> <span class="Delimiter">}</span> -<span id="L202" class="LineNr">202 </span>lease_tracer::<a href='003trace.cc.html#L202'>~lease_tracer</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L203" class="LineNr">203 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// in case tests close Trace_stream</span> -<span id="L204" class="LineNr">204 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L192'>Save_trace</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L205" class="LineNr">205 </span> ofstream fout<span class="Delimiter">(</span><span class="Constant">"last_trace"</span><span class="Delimiter">);</span> -<span id="L206" class="LineNr">206 </span> fout << <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L142'>readable_contents</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L207" class="LineNr">207 </span> fout<span class="Delimiter">.</span>close<span class="Delimiter">();</span> -<span id="L208" class="LineNr">208 </span> <span class="Delimiter">}</span> -<span id="L209" class="LineNr">209 </span> <span class="Normal">delete</span> <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L153'>Trace_stream</a> = <span class="Constant">NULL</span><span class="Delimiter">;</span> +<span id="L191" class="LineNr">191 </span><span class="Comment">// Just for debugging; 'git log' should never show any calls to 'dbg'.</span> +<span id="L192" class="LineNr">192 </span><span class="Comment">#define dbg trace(0, "a")</span> +<span id="L193" class="LineNr">193 </span><span class="Comment">#define DUMP(label) if (Trace_stream) cerr << Trace_stream->readable_contents(label);</span> +<span id="L194" class="LineNr">194 </span> +<span id="L195" class="LineNr">195 </span><span class="Comment">// Errors are a special layer.</span> +<span id="L196" class="LineNr">196 </span><span class="Comment">#define raise (!Trace_stream ? (++Trace_errors,cerr) /*do print*/ : Trace_stream->stream(Error_depth, "error"))</span> +<span id="L197" class="LineNr">197 </span><span class="Comment">// If we aren't yet sure how to deal with some corner case, use assert_for_now</span> +<span id="L198" class="LineNr">198 </span><span class="Comment">// to indicate that it isn't an inviolable invariant.</span> +<span id="L199" class="LineNr">199 </span><span class="Comment">#define assert_for_now assert</span> +<span id="L200" class="LineNr">200 </span> +<span id="L201" class="LineNr">201 </span><span class="Comment">// Inside tests, fail any tests that displayed (unexpected) errors.</span> +<span id="L202" class="LineNr">202 </span><span class="Comment">// Expected errors in tests should always be hidden and silently checked for.</span> +<span id="L203" class="LineNr">203 </span><span class="Delimiter">:(before "End Test Teardown")</span> +<span id="L204" class="LineNr">204 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L21'>Passed</a> && !Hide_errors && <a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L205" class="LineNr">205 </span> <a href='002test.cc.html#L21'>Passed</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L206" class="LineNr">206 </span><span class="Delimiter">}</span> +<span id="L207" class="LineNr">207 </span><span class="Delimiter">:(code)</span> +<span id="L208" class="LineNr">208 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L209" class="LineNr">209 </span> <span class="Identifier">return</span> <a href='003trace.cc.html#L183'>Trace_errors</a> > <span class="Constant">0</span> || trace_count<span class="Delimiter">(</span><span class="Constant">"error"</span><span class="Delimiter">)</span> > <span class="Constant">0</span><span class="Delimiter">;</span> <span id="L210" class="LineNr">210 </span><span class="Delimiter">}</span> -<span id="L211" class="LineNr">211 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L212" class="LineNr">212 </span><span class="PreProc">#define START_TRACING_UNTIL_END_OF_SCOPE lease_tracer leased_tracer</span><span class="Delimiter">;</span> -<span id="L213" class="LineNr">213 </span><span class="Delimiter">:(before "End Test Setup")</span> -<span id="L214" class="LineNr">214 </span><a href='003trace.cc.html#L212'>START_TRACING_UNTIL_END_OF_SCOPE</a> -<span id="L215" class="LineNr">215 </span> -<span id="L216" class="LineNr">216 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L217" class="LineNr">217 </span><span class="PreProc">#define CHECK_TRACE_CONTENTS(</span><span class="Delimiter">...</span><span class="PreProc">) check_trace_contents(__FUNCTION__</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Constant">__FILE__</span><span class="Delimiter">,</span><span class="PreProc"> </span><span class="Constant">__LINE__</span><span class="Delimiter">,</span><span class="PreProc"> __VA_ARGS__)</span> -<span id="L218" class="LineNr">218 </span> -<span id="L219" class="LineNr">219 </span><span class="PreProc">#define CHECK_TRACE_CONTAINS_ERRORS() CHECK(trace_contains_errors())</span> -<span id="L220" class="LineNr">220 </span><span class="PreProc">#define CHECK_TRACE_DOESNT_CONTAIN_ERRORS() \</span> -<span id="L221" class="LineNr">221 </span><span class="PreProc"> </span><span class="Normal">if</span><span class="PreProc"> (Passed && trace_contains_errors()) </span><span class="Delimiter">{</span><span class="PreProc"> \</span> -<span id="L222" class="LineNr">222 </span><span class="PreProc"> cerr << </span><span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span><span class="PreProc"> << __FUNCTION__ << </span><span class="Constant">"("</span><span class="PreProc"> << </span><span class="Constant">__FILE__</span><span class="PreProc"> << </span><span class="Constant">":"</span><span class="PreProc"> << </span><span class="Constant">__LINE__</span><span class="PreProc"> << </span><span class="Constant">"): unexpected errors</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span><span class="PreProc"> \</span> -<span id="L223" class="LineNr">223 </span><span class="PreProc"> DUMP(</span><span class="Constant">"error"</span><span class="PreProc">)</span><span class="Delimiter">;</span><span class="PreProc"> \</span> -<span id="L224" class="LineNr">224 </span><span class="PreProc"> <a href='002test.cc.html#L21'>Passed</a> = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</span> -<span id="L225" class="LineNr">225 </span><span class="PreProc"> </span><span class="Identifier">return</span><span class="Delimiter">;</span><span class="PreProc"> \</span> -<span id="L226" class="LineNr">226 </span><span class="PreProc"> </span><span class="Delimiter">}</span> -<span id="L227" class="LineNr">227 </span> -<span id="L228" class="LineNr">228 </span><span class="PreProc">#define CHECK_TRACE_COUNT(label</span><span class="Delimiter">,</span><span class="PreProc"> count) \</span> -<span id="L229" class="LineNr">229 </span><span class="PreProc"> </span><span class="Normal">if</span><span class="PreProc"> (Passed && trace_count(label) != (count)) </span><span class="Delimiter">{</span><span class="PreProc"> \</span> -<span id="L230" class="LineNr">230 </span><span class="PreProc"> cerr << </span><span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span><span class="PreProc"> << __FUNCTION__ << </span><span class="Constant">"("</span><span class="PreProc"> << </span><span class="Constant">__FILE__</span><span class="PreProc"> << </span><span class="Constant">":"</span><span class="PreProc"> << </span><span class="Constant">__LINE__</span><span class="PreProc"> << </span><span class="Constant">"): trace_count of "</span><span class="PreProc"> << <a href='003trace.cc.html#L73'>label</a> << </span><span class="Constant">" should be "</span><span class="PreProc"> << count << </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> \</span> -<span id="L231" class="LineNr">231 </span><span class="PreProc"> cerr << </span><span class="Constant">" got "</span><span class="PreProc"> << trace_count(label) << </span><span class="cSpecial">'\n'</span><span class="Delimiter">;</span><span class="PreProc"> </span><span class="Comment">/*</span><span class="Comment"> multiple eval </span><span class="Comment">*/</span><span class="PreProc"> \</span> -<span id="L232" class="LineNr">232 </span><span class="PreProc"> DUMP(label)</span><span class="Delimiter">;</span><span class="PreProc"> \</span> -<span id="L233" class="LineNr">233 </span><span class="PreProc"> <a href='002test.cc.html#L21'>Passed</a> = </span><span class="Constant">false</span><span class="Delimiter">;</span><span class="PreProc"> \</span> -<span id="L234" class="LineNr">234 </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="L235" class="LineNr">235 </span><span class="PreProc"> </span><span class="Delimiter">}</span> -<span id="L236" class="LineNr">236 </span> -<span id="L237" class="LineNr">237 </span><span class="PreProc">#define CHECK_TRACE_DOESNT_CONTAIN(</span><span class="Delimiter">...</span><span class="PreProc">) CHECK(trace_doesnt_contain(__VA_ARGS__))</span> -<span id="L238" class="LineNr">238 </span> -<span id="L239" class="LineNr">239 </span><span class="Delimiter">:(code)</span> -<span id="L240" class="LineNr">240 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L240'>check_trace_contents</a><span class="Delimiter">(</span>string FUNCTION<span class="Delimiter">,</span> string <span class="Normal">FILE</span><span class="Delimiter">,</span> <span class="Normal">int</span> LINE<span class="Delimiter">,</span> string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L241" class="LineNr">241 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L242" class="LineNr">242 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L243" class="LineNr">243 </span> vector<string> expected_lines = <a href='003trace.cc.html#L330'>split</a><span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">"^D"</span><span class="Delimiter">);</span> -<span id="L244" class="LineNr">244 </span> <span class="Normal">int</span> curr_expected_line = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L245" class="LineNr">245 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>curr_expected_line < <a href='001help.cc.html#L91'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">)</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span> -<span id="L246" class="LineNr">246 </span> ++curr_expected_line<span class="Delimiter">;</span> -<span id="L247" class="LineNr">247 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_expected_line == <a href='001help.cc.html#L91'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> -<span id="L248" class="LineNr">248 </span> string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">;</span> -<span id="L249" class="LineNr">249 </span> <a href='003trace.cc.html#L272'>split_label_contents</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">),</span> &label<span class="Delimiter">,</span> &contents<span class="Delimiter">);</span> -<span id="L250" class="LineNr">250 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L251" class="LineNr">251 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a> != p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L252" class="LineNr">252 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L74'>contents</a> != <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L253" class="LineNr">253 </span> ++curr_expected_line<span class="Delimiter">;</span> -<span id="L254" class="LineNr">254 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>curr_expected_line < <a href='001help.cc.html#L91'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">)</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span> -<span id="L255" class="LineNr">255 </span> ++curr_expected_line<span class="Delimiter">;</span> -<span id="L256" class="LineNr">256 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_expected_line == <a href='001help.cc.html#L91'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> -<span id="L257" class="LineNr">257 </span> <a href='003trace.cc.html#L272'>split_label_contents</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">),</span> &label<span class="Delimiter">,</span> &contents<span class="Delimiter">);</span> -<span id="L258" class="LineNr">258 </span> <span class="Delimiter">}</span> -<span id="L259" class="LineNr">259 </span> -<span id="L260" class="LineNr">260 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L285'>line_exists_anywhere</a><span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> -<span id="L261" class="LineNr">261 </span> cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << FUNCTION << <span class="Constant">"("</span> << <span class="Normal">FILE</span> << <span class="Constant">":"</span> << LINE << <span class="Constant">"): line ["</span> << <a href='003trace.cc.html#L73'>label</a> << <span class="Constant">": "</span> << <a href='003trace.cc.html#L74'>contents</a> << <span class="Constant">"] out of order in <a href='003trace.cc.html#L160'>trace</a>:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L262" class="LineNr">262 </span> <a href='003trace.cc.html#L164'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L263" class="LineNr">263 </span> <span class="Delimiter">}</span> -<span id="L264" class="LineNr">264 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> -<span id="L265" class="LineNr">265 </span> cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << FUNCTION << <span class="Constant">"("</span> << <span class="Normal">FILE</span> << <span class="Constant">":"</span> << LINE << <span class="Constant">"): missing ["</span> << <a href='003trace.cc.html#L74'>contents</a> << <span class="Constant">"] in <a href='003trace.cc.html#L160'>trace</a>:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> -<span id="L266" class="LineNr">266 </span> <a href='003trace.cc.html#L164'>DUMP</a><span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">);</span> -<span id="L267" class="LineNr">267 </span> <span class="Delimiter">}</span> -<span id="L268" class="LineNr">268 </span> <a href='002test.cc.html#L21'>Passed</a> = <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L269" class="LineNr">269 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L270" class="LineNr">270 </span><span class="Delimiter">}</span> -<span id="L271" class="LineNr">271 </span> -<span id="L272" class="LineNr">272 </span><span class="Normal">void</span> <a href='003trace.cc.html#L272'>split_label_contents</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">,</span> string* <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> string* <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L273" class="LineNr">273 </span> <span class="Normal">static</span> <span class="Normal">const</span> string delim<span class="Delimiter">(</span><span class="Constant">": "</span><span class="Delimiter">);</span> -<span id="L274" class="LineNr">274 </span> <span class="Normal">size_t</span> pos = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> -<span id="L275" class="LineNr">275 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>pos == string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L276" class="LineNr">276 </span> *label = <span class="Constant">""</span><span class="Delimiter">;</span> -<span id="L277" class="LineNr">277 </span> *contents = <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>s<span class="Delimiter">);</span> -<span id="L278" class="LineNr">278 </span> <span class="Delimiter">}</span> -<span id="L279" class="LineNr">279 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> -<span id="L280" class="LineNr">280 </span> *label = <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> pos<span class="Delimiter">));</span> -<span id="L281" class="LineNr">281 </span> *contents = <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span>pos+SIZE<span class="Delimiter">(</span>delim<span class="Delimiter">)));</span> +<span id="L211" class="LineNr">211 </span> +<span id="L212" class="LineNr">212 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L213" class="LineNr">213 </span><span class="Normal">struct</span> <a href='003trace.cc.html#L213'>end</a> <span class="Delimiter">{};</span> +<span id="L214" class="LineNr">214 </span><span class="Delimiter">:(code)</span> +<span id="L215" class="LineNr">215 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> <a href='003trace.cc.html#L213'>end</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L216" class="LineNr">216 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">)</span> <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L155'>newline</a><span class="Delimiter">();</span> +<span id="L217" class="LineNr">217 </span> <span class="Identifier">return</span> os<span class="Delimiter">;</span> +<span id="L218" class="LineNr">218 </span><span class="Delimiter">}</span> +<span id="L219" class="LineNr">219 </span> +<span id="L220" class="LineNr">220 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L221" class="LineNr">221 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L221'>Save_trace</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// if set, write out trace to disk</span> +<span id="L222" class="LineNr">222 </span> +<span id="L223" class="LineNr">223 </span><span class="Comment">// Trace_stream is a resource, lease_tracer uses RAII to manage it.</span> +<span id="L224" class="LineNr">224 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L225" class="LineNr">225 </span><span class="Normal">struct</span> lease_tracer <span class="Delimiter">{</span> +<span id="L226" class="LineNr">226 </span> lease_tracer<span class="Delimiter">();</span> +<span id="L227" class="LineNr">227 </span> <a href='003trace.cc.html#L231'>~lease_tracer</a><span class="Delimiter">();</span> +<span id="L228" class="LineNr">228 </span><span class="Delimiter">};</span> +<span id="L229" class="LineNr">229 </span><span class="Delimiter">:(code)</span> +<span id="L230" class="LineNr">230 </span>lease_tracer::lease_tracer<span class="Delimiter">()</span> <span class="Delimiter">{</span> <a href='003trace.cc.html#L182'>Trace_stream</a> = <span class="Normal">new</span> trace_stream<span class="Delimiter">;</span> <span class="Delimiter">}</span> +<span id="L231" class="LineNr">231 </span>lease_tracer::<a href='003trace.cc.html#L231'>~lease_tracer</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L232" class="LineNr">232 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L221'>Save_trace</a><span class="Delimiter">)</span> <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L141'>save</a><span class="Delimiter">();</span> +<span id="L233" class="LineNr">233 </span> <span class="Normal">delete</span> <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L182'>Trace_stream</a> = <span class="Constant">NULL</span><span class="Delimiter">;</span> +<span id="L234" class="LineNr">234 </span><span class="Delimiter">}</span> +<span id="L235" class="LineNr">235 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L236" class="LineNr">236 </span><span class="Comment">#define START_TRACING_UNTIL_END_OF_SCOPE lease_tracer leased_tracer;</span> +<span id="L237" class="LineNr">237 </span><span class="Delimiter">:(before "End Test Setup")</span> +<span id="L238" class="LineNr">238 </span><a href='003trace.cc.html#L236'>START_TRACING_UNTIL_END_OF_SCOPE</a> +<span id="L239" class="LineNr">239 </span> +<span id="L240" class="LineNr">240 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L241" class="LineNr">241 </span><span class="Comment">#define CHECK_TRACE_CONTENTS(...) check_trace_contents(__FUNCTION__, __FILE__, __LINE__, __VA_ARGS__)</span> +<span id="L242" class="LineNr">242 </span> +<span id="L243" class="LineNr">243 </span><span class="Comment">#define CHECK_TRACE_CONTAINS_ERRORS() CHECK(trace_contains_errors())</span> +<span id="L244" class="LineNr">244 </span><span class="Comment">#define CHECK_TRACE_DOESNT_CONTAIN_ERRORS() \</span> +<span id="L245" class="LineNr">245 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L21'>Passed</a> && <a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> \ +<span id="L246" class="LineNr">246 </span> cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << __FUNCTION__ << <span class="Constant">"("</span> << <span class="Constant">__FILE__</span> << <span class="Constant">":"</span> << <span class="Constant">__LINE__</span> << <span class="Constant">"): unexpected errors</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> \ +<span id="L247" class="LineNr">247 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><span class="Constant">"error"</span><span class="Delimiter">);</span> \ +<span id="L248" class="LineNr">248 </span> <a href='002test.cc.html#L21'>Passed</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> \ +<span id="L249" class="LineNr">249 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> \ +<span id="L250" class="LineNr">250 </span> <span class="Delimiter">}</span> +<span id="L251" class="LineNr">251 </span> +<span id="L252" class="LineNr">252 </span><span class="Comment">#define CHECK_TRACE_COUNT(label, count) \</span> +<span id="L253" class="LineNr">253 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='002test.cc.html#L21'>Passed</a> && trace_count<span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> != <span class="Delimiter">(</span>count<span class="Delimiter">))</span> <span class="Delimiter">{</span> \ +<span id="L254" class="LineNr">254 </span> cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << __FUNCTION__ << <span class="Constant">"("</span> << <span class="Constant">__FILE__</span> << <span class="Constant">":"</span> << <span class="Constant">__LINE__</span> << <span class="Constant">"): trace_count of "</span> << <a href='003trace.cc.html#L73'>label</a> << <span class="Constant">" should be "</span> << count << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> \ +<span id="L255" class="LineNr">255 </span> cerr << <span class="Constant">" got "</span> << trace_count<span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> multiple eval </span><span class="Comment">*/</span> \ +<span id="L256" class="LineNr">256 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">);</span> \ +<span id="L257" class="LineNr">257 </span> <a href='002test.cc.html#L21'>Passed</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> \ +<span id="L258" class="LineNr">258 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">/*</span><span class="Comment"> Currently we stop at the very first failure. </span><span class="Comment">*/</span> \ +<span id="L259" class="LineNr">259 </span> <span class="Delimiter">}</span> +<span id="L260" class="LineNr">260 </span> +<span id="L261" class="LineNr">261 </span><span class="Comment">#define CHECK_TRACE_DOESNT_CONTAIN(...) CHECK(trace_doesnt_contain(__VA_ARGS__))</span> +<span id="L262" class="LineNr">262 </span> +<span id="L263" class="LineNr">263 </span><span class="Delimiter">:(code)</span> +<span id="L264" class="LineNr">264 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L264'>check_trace_contents</a><span class="Delimiter">(</span>string FUNCTION<span class="Delimiter">,</span> string <span class="Normal">FILE</span><span class="Delimiter">,</span> <span class="Normal">int</span> LINE<span class="Delimiter">,</span> string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L265" class="LineNr">265 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L266" class="LineNr">266 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L267" class="LineNr">267 </span> vector<string> expected_lines = <a href='003trace.cc.html#L354'>split</a><span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">"^D"</span><span class="Delimiter">);</span> +<span id="L268" class="LineNr">268 </span> <span class="Normal">int</span> curr_expected_line = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L269" class="LineNr">269 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>curr_expected_line < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">)</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span> +<span id="L270" class="LineNr">270 </span> ++curr_expected_line<span class="Delimiter">;</span> +<span id="L271" class="LineNr">271 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_expected_line == <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L272" class="LineNr">272 </span> string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">;</span> +<span id="L273" class="LineNr">273 </span> <a href='003trace.cc.html#L296'>split_label_contents</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">),</span> &label<span class="Delimiter">,</span> &contents<span class="Delimiter">);</span> +<span id="L274" class="LineNr">274 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L275" class="LineNr">275 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a> != p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L276" class="LineNr">276 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L74'>contents</a> != <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L277" class="LineNr">277 </span> ++curr_expected_line<span class="Delimiter">;</span> +<span id="L278" class="LineNr">278 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>curr_expected_line < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">)</span> && expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>empty<span class="Delimiter">())</span> +<span id="L279" class="LineNr">279 </span> ++curr_expected_line<span class="Delimiter">;</span> +<span id="L280" class="LineNr">280 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_expected_line == <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L281" class="LineNr">281 </span> <a href='003trace.cc.html#L296'>split_label_contents</a><span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">),</span> &label<span class="Delimiter">,</span> &contents<span class="Delimiter">);</span> <span id="L282" class="LineNr">282 </span> <span class="Delimiter">}</span> -<span id="L283" class="LineNr">283 </span><span class="Delimiter">}</span> -<span id="L284" class="LineNr">284 </span> -<span id="L285" class="LineNr">285 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L285'>line_exists_anywhere</a><span class="Delimiter">(</span><span class="Normal">const</span> string& <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <span class="Normal">const</span> string& <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L286" class="LineNr">286 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L287" class="LineNr">287 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a> != p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> -<span id="L288" class="LineNr">288 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L74'>contents</a> == <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span> -<span id="L289" class="LineNr">289 </span> <span class="Delimiter">}</span> -<span id="L290" class="LineNr">290 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span> -<span id="L291" class="LineNr">291 </span><span class="Delimiter">}</span> -<span id="L292" class="LineNr">292 </span> -<span id="L293" class="LineNr">293 </span><span class="Normal">int</span> trace_count<span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L294" class="LineNr">294 </span> <span class="Identifier">return</span> trace_count<span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L295" class="LineNr">295 </span><span class="Delimiter">}</span> -<span id="L296" class="LineNr">296 </span> -<span id="L297" class="LineNr">297 </span><span class="Normal">int</span> trace_count<span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> string line<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L298" class="LineNr">298 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L299" class="LineNr">299 </span> <span class="Normal">long</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L300" class="LineNr">300 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L301" class="LineNr">301 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a> == p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L302" class="LineNr">302 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>line == <span class="Constant">""</span> || <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>line<span class="Delimiter">)</span> == <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> -<span id="L303" class="LineNr">303 </span> ++result<span class="Delimiter">;</span> -<span id="L304" class="LineNr">304 </span> <span class="Delimiter">}</span> -<span id="L305" class="LineNr">305 </span> <span class="Delimiter">}</span> -<span id="L306" class="LineNr">306 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L283" class="LineNr">283 </span> +<span id="L284" class="LineNr">284 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L309'>line_exists_anywhere</a><span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L285" class="LineNr">285 </span> cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << FUNCTION << <span class="Constant">"("</span> << <span class="Normal">FILE</span> << <span class="Constant">":"</span> << LINE << <span class="Constant">"): <a href='011run.cc.html#L108'>line</a> ["</span> << <a href='003trace.cc.html#L73'>label</a> << <span class="Constant">": "</span> << <a href='003trace.cc.html#L74'>contents</a> << <span class="Constant">"] out of order in <a href='003trace.cc.html#L189'>trace</a>:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L286" class="LineNr">286 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L287" class="LineNr">287 </span> <span class="Delimiter">}</span> +<span id="L288" class="LineNr">288 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L289" class="LineNr">289 </span> cerr << <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">F - "</span> << FUNCTION << <span class="Constant">"("</span> << <span class="Normal">FILE</span> << <span class="Constant">":"</span> << LINE << <span class="Constant">"): missing ["</span> << <a href='003trace.cc.html#L74'>contents</a> << <span class="Constant">"] in <a href='003trace.cc.html#L189'>trace</a>:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L290" class="LineNr">290 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">);</span> +<span id="L291" class="LineNr">291 </span> <span class="Delimiter">}</span> +<span id="L292" class="LineNr">292 </span> <a href='002test.cc.html#L21'>Passed</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L293" class="LineNr">293 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L294" class="LineNr">294 </span><span class="Delimiter">}</span> +<span id="L295" class="LineNr">295 </span> +<span id="L296" class="LineNr">296 </span><span class="Normal">void</span> <a href='003trace.cc.html#L296'>split_label_contents</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">,</span> string* <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> string* <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L297" class="LineNr">297 </span> <span class="Normal">static</span> <span class="Normal">const</span> string delim<span class="Delimiter">(</span><span class="Constant">": "</span><span class="Delimiter">);</span> +<span id="L298" class="LineNr">298 </span> <span class="Normal">size_t</span> pos = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> +<span id="L299" class="LineNr">299 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>pos == string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L300" class="LineNr">300 </span> *label = <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L301" class="LineNr">301 </span> *contents = <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span>s<span class="Delimiter">);</span> +<span id="L302" class="LineNr">302 </span> <span class="Delimiter">}</span> +<span id="L303" class="LineNr">303 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L304" class="LineNr">304 </span> *label = <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> pos<span class="Delimiter">));</span> +<span id="L305" class="LineNr">305 </span> *contents = <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span>pos+SIZE<span class="Delimiter">(</span>delim<span class="Delimiter">)));</span> +<span id="L306" class="LineNr">306 </span> <span class="Delimiter">}</span> <span id="L307" class="LineNr">307 </span><span class="Delimiter">}</span> <span id="L308" class="LineNr">308 </span> -<span id="L309" class="LineNr">309 </span><span class="Normal">int</span> <a href='003trace.cc.html#L309'>trace_count_prefix</a><span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> string prefix<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L310" class="LineNr">310 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L311" class="LineNr">311 </span> <span class="Normal">long</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L312" class="LineNr">312 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L153'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L96'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L313" class="LineNr">313 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a> == p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L314" class="LineNr">314 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L27'>starts_with</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">),</span> <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span>prefix<span class="Delimiter">)))</span> -<span id="L315" class="LineNr">315 </span> ++result<span class="Delimiter">;</span> -<span id="L316" class="LineNr">316 </span> <span class="Delimiter">}</span> -<span id="L317" class="LineNr">317 </span> <span class="Delimiter">}</span> -<span id="L318" class="LineNr">318 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L309" class="LineNr">309 </span><span class="Normal">bool</span> <a href='003trace.cc.html#L309'>line_exists_anywhere</a><span class="Delimiter">(</span><span class="Normal">const</span> string& <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <span class="Normal">const</span> string& <a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L310" class="LineNr">310 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L311" class="LineNr">311 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a> != p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L312" class="LineNr">312 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L74'>contents</a> == <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L313" class="LineNr">313 </span> <span class="Delimiter">}</span> +<span id="L314" class="LineNr">314 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L315" class="LineNr">315 </span><span class="Delimiter">}</span> +<span id="L316" class="LineNr">316 </span> +<span id="L317" class="LineNr">317 </span><span class="Normal">int</span> trace_count<span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L318" class="LineNr">318 </span> <span class="Identifier">return</span> trace_count<span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <span class="Constant">""</span><span class="Delimiter">);</span> <span id="L319" class="LineNr">319 </span><span class="Delimiter">}</span> <span id="L320" class="LineNr">320 </span> -<span id="L321" class="LineNr">321 </span><span class="Normal">bool</span> trace_doesnt_contain<span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> string line<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L322" class="LineNr">322 </span> <span class="Identifier">return</span> trace_count<span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> line<span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">;</span> -<span id="L323" class="LineNr">323 </span><span class="Delimiter">}</span> -<span id="L324" class="LineNr">324 </span> -<span id="L325" class="LineNr">325 </span><span class="Normal">bool</span> trace_doesnt_contain<span class="Delimiter">(</span>string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L326" class="LineNr">326 </span> vector<string> tmp = <a href='003trace.cc.html#L345'>split_first</a><span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">": "</span><span class="Delimiter">);</span> -<span id="L327" class="LineNr">327 </span> <span class="Identifier">return</span> trace_doesnt_contain<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span> -<span id="L328" class="LineNr">328 </span><span class="Delimiter">}</span> -<span id="L329" class="LineNr">329 </span> -<span id="L330" class="LineNr">330 </span>vector<string> <a href='003trace.cc.html#L330'>split</a><span class="Delimiter">(</span>string s<span class="Delimiter">,</span> string delim<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L331" class="LineNr">331 </span> vector<string> result<span class="Delimiter">;</span> -<span id="L332" class="LineNr">332 </span> <span class="Normal">size_t</span> begin=<span class="Constant">0</span><span class="Delimiter">,</span> end=s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> -<span id="L333" class="LineNr">333 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L334" class="LineNr">334 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L184'>end</a> == string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L335" class="LineNr">335 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> begin<span class="Delimiter">,</span> string::npos<span class="Delimiter">));</span> -<span id="L336" class="LineNr">336 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L337" class="LineNr">337 </span> <span class="Delimiter">}</span> -<span id="L338" class="LineNr">338 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> begin<span class="Delimiter">,</span> end-begin<span class="Delimiter">));</span> -<span id="L339" class="LineNr">339 </span> begin = end+SIZE<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> -<span id="L340" class="LineNr">340 </span> <a href='003trace.cc.html#L184'>end</a> = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">,</span> begin<span class="Delimiter">);</span> +<span id="L321" class="LineNr">321 </span><span class="Normal">int</span> trace_count<span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> string <a href='011run.cc.html#L108'>line</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L322" class="LineNr">322 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L323" class="LineNr">323 </span> <span class="Normal">long</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L324" class="LineNr">324 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L325" class="LineNr">325 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a> == p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L326" class="LineNr">326 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='011run.cc.html#L108'>line</a> == <span class="Constant">""</span> || <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><a href='011run.cc.html#L108'>line</a><span class="Delimiter">)</span> == <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">))</span> +<span id="L327" class="LineNr">327 </span> ++result<span class="Delimiter">;</span> +<span id="L328" class="LineNr">328 </span> <span class="Delimiter">}</span> +<span id="L329" class="LineNr">329 </span> <span class="Delimiter">}</span> +<span id="L330" class="LineNr">330 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L331" class="LineNr">331 </span><span class="Delimiter">}</span> +<span id="L332" class="LineNr">332 </span> +<span id="L333" class="LineNr">333 </span><span class="Normal">int</span> <a href='003trace.cc.html#L333'>trace_count_prefix</a><span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> string prefix<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L334" class="LineNr">334 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L335" class="LineNr">335 </span> <span class="Normal">long</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L336" class="LineNr">336 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>vector<trace_line>::iterator p = <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L118'>past_lines</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L337" class="LineNr">337 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a> == p<span class="Delimiter">-></span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L338" class="LineNr">338 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span>p<span class="Delimiter">-></span><a href='003trace.cc.html#L74'>contents</a><span class="Delimiter">),</span> <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span>prefix<span class="Delimiter">)))</span> +<span id="L339" class="LineNr">339 </span> ++result<span class="Delimiter">;</span> +<span id="L340" class="LineNr">340 </span> <span class="Delimiter">}</span> <span id="L341" class="LineNr">341 </span> <span class="Delimiter">}</span> <span id="L342" class="LineNr">342 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> <span id="L343" class="LineNr">343 </span><span class="Delimiter">}</span> <span id="L344" class="LineNr">344 </span> -<span id="L345" class="LineNr">345 </span>vector<string> <a href='003trace.cc.html#L345'>split_first</a><span class="Delimiter">(</span>string s<span class="Delimiter">,</span> string delim<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L346" class="LineNr">346 </span> vector<string> result<span class="Delimiter">;</span> -<span id="L347" class="LineNr">347 </span> <span class="Normal">size_t</span> end=s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> -<span id="L348" class="LineNr">348 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">));</span> -<span id="L349" class="LineNr">349 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L184'>end</a> != string::npos<span class="Delimiter">)</span> -<span id="L350" class="LineNr">350 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> end+SIZE<span class="Delimiter">(</span>delim<span class="Delimiter">),</span> string::npos<span class="Delimiter">));</span> -<span id="L351" class="LineNr">351 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L345" class="LineNr">345 </span><span class="Normal">bool</span> trace_doesnt_contain<span class="Delimiter">(</span>string <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> string <a href='011run.cc.html#L108'>line</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L346" class="LineNr">346 </span> <span class="Identifier">return</span> trace_count<span class="Delimiter">(</span><a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> <a href='011run.cc.html#L108'>line</a><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L347" class="LineNr">347 </span><span class="Delimiter">}</span> +<span id="L348" class="LineNr">348 </span> +<span id="L349" class="LineNr">349 </span><span class="Normal">bool</span> trace_doesnt_contain<span class="Delimiter">(</span>string expected<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L350" class="LineNr">350 </span> vector<string> tmp = <a href='003trace.cc.html#L369'>split_first</a><span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">": "</span><span class="Delimiter">);</span> +<span id="L351" class="LineNr">351 </span> <span class="Identifier">return</span> trace_doesnt_contain<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span> <span id="L352" class="LineNr">352 </span><span class="Delimiter">}</span> <span id="L353" class="LineNr">353 </span> -<span id="L354" class="LineNr">354 </span>string <a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L355" class="LineNr">355 </span> string::const_iterator first = s<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> -<span id="L356" class="LineNr">356 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>first != s<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*first<span class="Delimiter">))</span> -<span id="L357" class="LineNr">357 </span> ++first<span class="Delimiter">;</span> -<span id="L358" class="LineNr">358 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>first == s<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> -<span id="L359" class="LineNr">359 </span> -<span id="L360" class="LineNr">360 </span> string::const_iterator last = --s<span class="Delimiter">.</span><a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L361" class="LineNr">361 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>last != s<span class="Delimiter">.</span>begin<span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*last<span class="Delimiter">))</span> -<span id="L362" class="LineNr">362 </span> --last<span class="Delimiter">;</span> -<span id="L363" class="LineNr">363 </span> ++last<span class="Delimiter">;</span> -<span id="L364" class="LineNr">364 </span> <span class="Identifier">return</span> string<span class="Delimiter">(</span>first<span class="Delimiter">,</span> last<span class="Delimiter">);</span> -<span id="L365" class="LineNr">365 </span><span class="Delimiter">}</span> -<span id="L366" class="LineNr">366 </span> -<span id="L367" class="LineNr">367 </span><span class="Delimiter">:(before "End Includes")</span> -<span id="L368" class="LineNr">368 </span><span class="PreProc">#include </span><span class="Constant"><vector></span> -<span id="L369" class="LineNr">369 </span><span class="Normal">using</span> std::vector<span class="Delimiter">;</span> -<span id="L370" class="LineNr">370 </span><span class="PreProc">#include </span><span class="Constant"><list></span> -<span id="L371" class="LineNr">371 </span><span class="Normal">using</span> std::list<span class="Delimiter">;</span> -<span id="L372" class="LineNr">372 </span><span class="PreProc">#include </span><span class="Constant"><map></span> -<span id="L373" class="LineNr">373 </span><span class="Normal">using</span> std::map<span class="Delimiter">;</span> -<span id="L374" class="LineNr">374 </span><span class="PreProc">#include </span><span class="Constant"><set></span> -<span id="L375" class="LineNr">375 </span><span class="Normal">using</span> std::set<span class="Delimiter">;</span> -<span id="L376" class="LineNr">376 </span><span class="PreProc">#include </span><span class="Constant"><algorithm></span> +<span id="L354" class="LineNr">354 </span>vector<string> <a href='003trace.cc.html#L354'>split</a><span class="Delimiter">(</span>string s<span class="Delimiter">,</span> string delim<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L355" class="LineNr">355 </span> vector<string> result<span class="Delimiter">;</span> +<span id="L356" class="LineNr">356 </span> <span class="Normal">size_t</span> begin=<span class="Constant">0</span><span class="Delimiter">,</span> end=s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> +<span id="L357" class="LineNr">357 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L358" class="LineNr">358 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L213'>end</a> == string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L359" class="LineNr">359 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> begin<span class="Delimiter">,</span> string::npos<span class="Delimiter">));</span> +<span id="L360" class="LineNr">360 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L361" class="LineNr">361 </span> <span class="Delimiter">}</span> +<span id="L362" class="LineNr">362 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> begin<span class="Delimiter">,</span> end-begin<span class="Delimiter">));</span> +<span id="L363" class="LineNr">363 </span> begin = end+SIZE<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> +<span id="L364" class="LineNr">364 </span> <a href='003trace.cc.html#L213'>end</a> = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">,</span> begin<span class="Delimiter">);</span> +<span id="L365" class="LineNr">365 </span> <span class="Delimiter">}</span> +<span id="L366" class="LineNr">366 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L367" class="LineNr">367 </span><span class="Delimiter">}</span> +<span id="L368" class="LineNr">368 </span> +<span id="L369" class="LineNr">369 </span>vector<string> <a href='003trace.cc.html#L369'>split_first</a><span class="Delimiter">(</span>string s<span class="Delimiter">,</span> string delim<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L370" class="LineNr">370 </span> vector<string> result<span class="Delimiter">;</span> +<span id="L371" class="LineNr">371 </span> <span class="Normal">size_t</span> end=s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>delim<span class="Delimiter">);</span> +<span id="L372" class="LineNr">372 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">));</span> +<span id="L373" class="LineNr">373 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L213'>end</a> != string::npos<span class="Delimiter">)</span> +<span id="L374" class="LineNr">374 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>string<span class="Delimiter">(</span>s<span class="Delimiter">,</span> end+SIZE<span class="Delimiter">(</span>delim<span class="Delimiter">),</span> string::npos<span class="Delimiter">));</span> +<span id="L375" class="LineNr">375 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L376" class="LineNr">376 </span><span class="Delimiter">}</span> <span id="L377" class="LineNr">377 </span> -<span id="L378" class="LineNr">378 </span><span class="PreProc">#include </span><span class="Constant"><sstream></span> -<span id="L379" class="LineNr">379 </span><span class="Normal">using</span> std::istringstream<span class="Delimiter">;</span> -<span id="L380" class="LineNr">380 </span><span class="Normal">using</span> std::ostringstream<span class="Delimiter">;</span> -<span id="L381" class="LineNr">381 </span> -<span id="L382" class="LineNr">382 </span><span class="PreProc">#include </span><span class="Constant"><fstream></span> -<span id="L383" class="LineNr">383 </span><span class="Normal">using</span> std::ifstream<span class="Delimiter">;</span> -<span id="L384" class="LineNr">384 </span><span class="Normal">using</span> std::ofstream<span class="Delimiter">;</span> -<span id="L385" class="LineNr">385 </span> -<span id="L386" class="LineNr">386 </span><span class="Delimiter">:(before "End Globals")</span> -<span id="L387" class="LineNr">387 </span><span class="Comment">//: In future layers we'll use the depth field as follows:</span> -<span id="L388" class="LineNr">388 </span><span class="Comment">//:</span> -<span id="L389" class="LineNr">389 </span><span class="Comment">//: Errors will be depth 0.</span> -<span id="L390" class="LineNr">390 </span><span class="Comment">//: Mu 'applications' will be able to use depths 1-100 as they like.</span> -<span id="L391" class="LineNr">391 </span><span class="Comment">//: Primitive statements will occupy 101-9989</span> -<span id="L392" class="LineNr">392 </span><span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> <a href='003trace.cc.html#L392'>Initial_callstack_depth</a> = <span class="Constant">101</span><span class="Delimiter">;</span> -<span id="L393" class="LineNr">393 </span><span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> <a href='003trace.cc.html#L393'>Max_callstack_depth</a> = <span class="Constant">9989</span><span class="Delimiter">;</span> -<span id="L394" class="LineNr">394 </span><span class="Comment">//: Finally, details of primitive Mu statements will occupy depth 9990-9999</span> -<span id="L395" class="LineNr">395 </span><span class="Comment">//: (more on that later as well)</span> -<span id="L396" class="LineNr">396 </span><span class="Comment">//:</span> -<span id="L397" class="LineNr">397 </span><span class="Comment">//: This framework should help us hide some details at each level, mixing</span> -<span id="L398" class="LineNr">398 </span><span class="Comment">//: static ideas like layers with the dynamic notion of call-stack depth.</span> +<span id="L378" class="LineNr">378 </span>string <a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L379" class="LineNr">379 </span> string::const_iterator first = s<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> +<span id="L380" class="LineNr">380 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>first != s<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*first<span class="Delimiter">))</span> +<span id="L381" class="LineNr">381 </span> ++first<span class="Delimiter">;</span> +<span id="L382" class="LineNr">382 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>first == s<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L383" class="LineNr">383 </span> +<span id="L384" class="LineNr">384 </span> string::const_iterator last = --s<span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L385" class="LineNr">385 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>last != s<span class="Delimiter">.</span>begin<span class="Delimiter">()</span> && isspace<span class="Delimiter">(</span>*last<span class="Delimiter">))</span> +<span id="L386" class="LineNr">386 </span> --last<span class="Delimiter">;</span> +<span id="L387" class="LineNr">387 </span> ++last<span class="Delimiter">;</span> +<span id="L388" class="LineNr">388 </span> <span class="Identifier">return</span> string<span class="Delimiter">(</span>first<span class="Delimiter">,</span> last<span class="Delimiter">);</span> +<span id="L389" class="LineNr">389 </span><span class="Delimiter">}</span> +<span id="L390" class="LineNr">390 </span> +<span id="L391" class="LineNr">391 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L392" class="LineNr">392 </span><span class="Comment">#include <vector></span> +<span id="L393" class="LineNr">393 </span><span class="Normal">using</span> std::vector<span class="Delimiter">;</span> +<span id="L394" class="LineNr">394 </span><span class="Comment">#include <list></span> +<span id="L395" class="LineNr">395 </span><span class="Normal">using</span> std::list<span class="Delimiter">;</span> +<span id="L396" class="LineNr">396 </span><span class="Comment">#include <set></span> +<span id="L397" class="LineNr">397 </span><span class="Normal">using</span> std::set<span class="Delimiter">;</span> +<span id="L398" class="LineNr">398 </span> +<span id="L399" class="LineNr">399 </span><span class="Comment">#include <sstream></span> +<span id="L400" class="LineNr">400 </span><span class="Normal">using</span> std::istringstream<span class="Delimiter">;</span> +<span id="L401" class="LineNr">401 </span><span class="Normal">using</span> std::ostringstream<span class="Delimiter">;</span> +<span id="L402" class="LineNr">402 </span> +<span id="L403" class="LineNr">403 </span><span class="Comment">#include <fstream></span> +<span id="L404" class="LineNr">404 </span><span class="Normal">using</span> std::ifstream<span class="Delimiter">;</span> +<span id="L405" class="LineNr">405 </span><span class="Normal">using</span> std::ofstream<span class="Delimiter">;</span> +<span id="L406" class="LineNr">406 </span> +<span id="L407" class="LineNr">407 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L408" class="LineNr">408 </span><span class="Comment">//: In future layers we'll use the depth field as follows:</span> +<span id="L409" class="LineNr">409 </span><span class="Comment">//:</span> +<span id="L410" class="LineNr">410 </span><span class="Comment">//: Errors will be depth 0.</span> +<span id="L411" class="LineNr">411 </span><span class="Comment">//: Mu 'applications' will be able to use depths 1-100 as they like.</span> +<span id="L412" class="LineNr">412 </span><span class="Comment">//: Primitive statements will occupy 101-9989</span> +<span id="L413" class="LineNr">413 </span><span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> <a href='003trace.cc.html#L413'>Initial_callstack_depth</a> = <span class="Constant">101</span><span class="Delimiter">;</span> +<span id="L414" class="LineNr">414 </span><span class="Normal">extern</span> <span class="Normal">const</span> <span class="Normal">int</span> <a href='003trace.cc.html#L414'>Max_callstack_depth</a> = <span class="Constant">9989</span><span class="Delimiter">;</span> +<span id="L415" class="LineNr">415 </span><span class="Comment">//: Finally, details of primitive Mu statements will occupy depth 9990-9999</span> +<span id="L416" class="LineNr">416 </span><span class="Comment">//: (more on that later as well)</span> +<span id="L417" class="LineNr">417 </span><span class="Comment">//:</span> +<span id="L418" class="LineNr">418 </span><span class="Comment">//: This framework should help us hide some details at each level, mixing</span> +<span id="L419" class="LineNr">419 </span><span class="Comment">//: static ideas like layers with the dynamic notion of call-stack depth.</span> </pre> </body> </html> diff --git a/html/subx/003trace.test.cc.html b/html/subx/003trace.test.cc.html index 621dab4d..72ec2c33 100644 --- a/html/subx/003trace.test.cc.html +++ b/html/subx/003trace.test.cc.html @@ -57,66 +57,66 @@ if ('onhashchange' in window) { <body onload='JumpToLine();'> <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L1'>test_trace_check_compares</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L2" class="LineNr"> 2 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L3" class="LineNr"> 3 </span> <a href='003trace.cc.html#L217'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer: foo"</span><span class="Delimiter">);</span> +<span id="L2" class="LineNr"> 2 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L3" class="LineNr"> 3 </span> <a href='003trace.cc.html#L241'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer: foo"</span><span class="Delimiter">);</span> <span id="L4" class="LineNr"> 4 </span><span class="Delimiter">}</span> <span id="L5" class="LineNr"> 5 </span> <span id="L6" class="LineNr"> 6 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L6'>test_trace_check_ignores_other_layers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L7" class="LineNr"> 7 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L8" class="LineNr"> 8 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 2"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L9" class="LineNr"> 9 </span> <a href='003trace.cc.html#L217'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> -<span id="L10" class="LineNr"> 10 </span> <a href='003trace.cc.html#L237'>CHECK_TRACE_DOESNT_CONTAIN</a><span class="Delimiter">(</span><span class="Constant">"test layer 2: foo"</span><span class="Delimiter">);</span> +<span id="L7" class="LineNr"> 7 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L8" class="LineNr"> 8 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 2"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L9" class="LineNr"> 9 </span> <a href='003trace.cc.html#L241'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> +<span id="L10" class="LineNr"> 10 </span> <a href='003trace.cc.html#L261'>CHECK_TRACE_DOESNT_CONTAIN</a><span class="Delimiter">(</span><span class="Constant">"test layer 2: foo"</span><span class="Delimiter">);</span> <span id="L11" class="LineNr"> 11 </span><span class="Delimiter">}</span> <span id="L12" class="LineNr"> 12 </span> <span id="L13" class="LineNr"> 13 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L13'>test_trace_check_ignores_leading_whitespace</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L14" class="LineNr"> 14 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">" foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> +<span id="L14" class="LineNr"> 14 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">" foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> <span id="L15" class="LineNr"> 15 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">too little whitespace</span><span class="Comment">*/</span><span class="Constant">"foo"</span><span class="Delimiter">),</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L16" class="LineNr"> 16 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">too much whitespace</span><span class="Comment">*/</span><span class="Constant">" foo"</span><span class="Delimiter">),</span> <span class="Constant">1</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="Normal">void</span> <a href='003trace.test.cc.html#L19'>test_trace_check_ignores_other_lines</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L20" class="LineNr"> 20 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L217'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> +<span id="L20" class="LineNr"> 20 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L241'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> <span id="L23" class="LineNr"> 23 </span><span class="Delimiter">}</span> <span id="L24" class="LineNr"> 24 </span> <span id="L25" class="LineNr"> 25 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L25'>test_trace_check_ignores_other_lines2</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L26" class="LineNr"> 26 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L28" class="LineNr"> 28 </span> <a href='003trace.cc.html#L217'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: bar"</span><span class="Delimiter">);</span> +<span id="L26" class="LineNr"> 26 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L27" class="LineNr"> 27 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L28" class="LineNr"> 28 </span> <a href='003trace.cc.html#L241'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: bar"</span><span class="Delimiter">);</span> <span id="L29" class="LineNr"> 29 </span><span class="Delimiter">}</span> <span id="L30" class="LineNr"> 30 </span> <span id="L31" class="LineNr"> 31 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L31'>test_trace_ignores_trailing_whitespace</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L32" class="LineNr"> 32 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L33" class="LineNr"> 33 </span> <a href='003trace.cc.html#L217'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> +<span id="L32" class="LineNr"> 32 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L33" class="LineNr"> 33 </span> <a href='003trace.cc.html#L241'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> <span id="L34" class="LineNr"> 34 </span><span class="Delimiter">}</span> <span id="L35" class="LineNr"> 35 </span> <span id="L36" class="LineNr"> 36 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L36'>test_trace_ignores_trailing_whitespace2</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L37" class="LineNr"> 37 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo "</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L38" class="LineNr"> 38 </span> <a href='003trace.cc.html#L217'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> +<span id="L37" class="LineNr"> 37 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo "</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L38" class="LineNr"> 38 </span> <a href='003trace.cc.html#L241'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo"</span><span class="Delimiter">);</span> <span id="L39" class="LineNr"> 39 </span><span class="Delimiter">}</span> <span id="L40" class="LineNr"> 40 </span> <span id="L41" class="LineNr"> 41 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L41'>test_trace_orders_across_layers</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L42" class="LineNr"> 42 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L43" class="LineNr"> 43 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 2"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L44" class="LineNr"> 44 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"qux"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L45" class="LineNr"> 45 </span> <a href='003trace.cc.html#L217'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo^Dtest layer 2: bar^Dtest layer 1: qux^D"</span><span class="Delimiter">);</span> +<span id="L42" class="LineNr"> 42 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L43" class="LineNr"> 43 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 2"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L44" class="LineNr"> 44 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"qux"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L45" class="LineNr"> 45 </span> <a href='003trace.cc.html#L241'>CHECK_TRACE_CONTENTS</a><span class="Delimiter">(</span><span class="Constant">"test layer 1: foo^Dtest layer 2: bar^Dtest layer 1: qux^D"</span><span class="Delimiter">);</span> <span id="L46" class="LineNr"> 46 </span><span class="Delimiter">}</span> <span id="L47" class="LineNr"> 47 </span> <span id="L48" class="LineNr"> 48 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L48'>test_trace_supports_count</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L49" class="LineNr"> 49 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> +<span id="L49" class="LineNr"> 49 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> <span id="L51" class="LineNr"> 51 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">,</span> <span class="Constant">"foo"</span><span class="Delimiter">),</span> <span class="Constant">2</span><span class="Delimiter">);</span> <span id="L52" class="LineNr"> 52 </span><span class="Delimiter">}</span> <span id="L53" class="LineNr"> 53 </span> <span id="L54" class="LineNr"> 54 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L54'>test_trace_supports_count2</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L55" class="LineNr"> 55 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> +<span id="L55" class="LineNr"> 55 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"bar"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> <span id="L57" class="LineNr"> 57 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">),</span> <span class="Constant">2</span><span class="Delimiter">);</span> <span id="L58" class="LineNr"> 58 </span><span class="Delimiter">}</span> <span id="L59" class="LineNr"> 59 </span> <span id="L60" class="LineNr"> 60 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L60'>test_trace_count_ignores_trailing_whitespace</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L61" class="LineNr"> 61 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> +<span id="L61" class="LineNr"> 61 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">)</span> << <span class="Constant">"foo</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> <span id="L62" class="LineNr"> 62 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span><span class="Constant">"test layer 1"</span><span class="Delimiter">,</span> <span class="Constant">"foo"</span><span class="Delimiter">),</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L63" class="LineNr"> 63 </span><span class="Delimiter">}</span> <span id="L64" class="LineNr"> 64 </span> @@ -131,26 +131,26 @@ if ('onhashchange' in window) { <span id="L73" class="LineNr"> 73 </span><span class="Comment">// can't check trace because trace methods call 'split'</span> <span id="L74" class="LineNr"> 74 </span> <span id="L75" class="LineNr"> 75 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L75'>test_split_returns_at_least_one_elem</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L76" class="LineNr"> 76 </span> vector<string> result = <a href='003trace.cc.html#L330'>split</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span> +<span id="L76" class="LineNr"> 76 </span> vector<string> result = <a href='003trace.cc.html#L354'>split</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span> <span id="L77" class="LineNr"> 77 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L78" class="LineNr"> 78 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">""</span><span class="Delimiter">);</span> <span id="L79" class="LineNr"> 79 </span><span class="Delimiter">}</span> <span id="L80" class="LineNr"> 80 </span> <span id="L81" class="LineNr"> 81 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L81'>test_split_returns_entire_input_when_no_delim</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L82" class="LineNr"> 82 </span> vector<string> result = <a href='003trace.cc.html#L330'>split</a><span class="Delimiter">(</span><span class="Constant">"abc"</span><span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span> +<span id="L82" class="LineNr"> 82 </span> vector<string> result = <a href='003trace.cc.html#L354'>split</a><span class="Delimiter">(</span><span class="Constant">"abc"</span><span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span> <span id="L83" class="LineNr"> 83 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">1</span><span class="Delimiter">);</span> <span id="L84" class="LineNr"> 84 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">"abc"</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="Normal">void</span> <a href='003trace.test.cc.html#L87'>test_split_works</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L88" class="LineNr"> 88 </span> vector<string> result = <a href='003trace.cc.html#L330'>split</a><span class="Delimiter">(</span><span class="Constant">"abc,def"</span><span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span> +<span id="L88" class="LineNr"> 88 </span> vector<string> result = <a href='003trace.cc.html#L354'>split</a><span class="Delimiter">(</span><span class="Constant">"abc,def"</span><span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span> <span id="L89" class="LineNr"> 89 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">2</span><span class="Delimiter">);</span> <span id="L90" class="LineNr"> 90 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">"abc"</span><span class="Delimiter">);</span> <span id="L91" class="LineNr"> 91 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> <span class="Constant">"def"</span><span class="Delimiter">);</span> <span id="L92" class="LineNr"> 92 </span><span class="Delimiter">}</span> <span id="L93" class="LineNr"> 93 </span> <span id="L94" class="LineNr"> 94 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L94'>test_split_works2</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L95" class="LineNr"> 95 </span> vector<string> result = <a href='003trace.cc.html#L330'>split</a><span class="Delimiter">(</span><span class="Constant">"abc,def,ghi"</span><span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span> +<span id="L95" class="LineNr"> 95 </span> vector<string> result = <a href='003trace.cc.html#L354'>split</a><span class="Delimiter">(</span><span class="Constant">"abc,def,ghi"</span><span class="Delimiter">,</span> <span class="Constant">","</span><span class="Delimiter">);</span> <span id="L96" class="LineNr"> 96 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">3</span><span class="Delimiter">);</span> <span id="L97" class="LineNr"> 97 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">"abc"</span><span class="Delimiter">);</span> <span id="L98" class="LineNr"> 98 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> <span class="Constant">"def"</span><span class="Delimiter">);</span> @@ -158,7 +158,7 @@ if ('onhashchange' in window) { <span id="L100" class="LineNr">100 </span><span class="Delimiter">}</span> <span id="L101" class="LineNr">101 </span> <span id="L102" class="LineNr">102 </span><span class="Normal">void</span> <a href='003trace.test.cc.html#L102'>test_split_handles_multichar_delim</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L103" class="LineNr">103 </span> vector<string> result = <a href='003trace.cc.html#L330'>split</a><span class="Delimiter">(</span><span class="Constant">"abc,,def,,ghi"</span><span class="Delimiter">,</span> <span class="Constant">",,"</span><span class="Delimiter">);</span> +<span id="L103" class="LineNr">103 </span> vector<string> result = <a href='003trace.cc.html#L354'>split</a><span class="Delimiter">(</span><span class="Constant">"abc,,def,,ghi"</span><span class="Delimiter">,</span> <span class="Constant">",,"</span><span class="Delimiter">);</span> <span id="L104" class="LineNr">104 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>size<span class="Delimiter">(),</span> <span class="Constant">3</span><span class="Delimiter">);</span> <span id="L105" class="LineNr">105 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> <span class="Constant">"abc"</span><span class="Delimiter">);</span> <span id="L106" class="LineNr">106 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">),</span> <span class="Constant">"def"</span><span class="Delimiter">);</span> @@ -166,19 +166,19 @@ if ('onhashchange' in window) { <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="Normal">void</span> <a href='003trace.test.cc.html#L110'>test_trim</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L111" class="LineNr">111 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">),</span> <span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L112" class="LineNr">112 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">" "</span><span class="Delimiter">),</span> <span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L113" class="LineNr">113 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">" "</span><span class="Delimiter">),</span> <span class="Constant">""</span><span class="Delimiter">);</span> -<span id="L114" class="LineNr">114 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">"a"</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> -<span id="L115" class="LineNr">115 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">" a"</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> -<span id="L116" class="LineNr">116 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">" a"</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> -<span id="L117" class="LineNr">117 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">" ab"</span><span class="Delimiter">),</span> <span class="Constant">"ab"</span><span class="Delimiter">);</span> -<span id="L118" class="LineNr">118 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">"a "</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> -<span id="L119" class="LineNr">119 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">"a "</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> -<span id="L120" class="LineNr">120 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">"ab "</span><span class="Delimiter">),</span> <span class="Constant">"ab"</span><span class="Delimiter">);</span> -<span id="L121" class="LineNr">121 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">" a "</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> -<span id="L122" class="LineNr">122 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">" a "</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> -<span id="L123" class="LineNr">123 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L354'>trim</a><span class="Delimiter">(</span><span class="Constant">" ab "</span><span class="Delimiter">),</span> <span class="Constant">"ab"</span><span class="Delimiter">);</span> +<span id="L111" class="LineNr">111 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">),</span> <span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L112" class="LineNr">112 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">" "</span><span class="Delimiter">),</span> <span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L113" class="LineNr">113 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">" "</span><span class="Delimiter">),</span> <span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L114" class="LineNr">114 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">"a"</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> +<span id="L115" class="LineNr">115 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">" a"</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> +<span id="L116" class="LineNr">116 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">" a"</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> +<span id="L117" class="LineNr">117 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">" ab"</span><span class="Delimiter">),</span> <span class="Constant">"ab"</span><span class="Delimiter">);</span> +<span id="L118" class="LineNr">118 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">"a "</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> +<span id="L119" class="LineNr">119 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">"a "</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> +<span id="L120" class="LineNr">120 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">"ab "</span><span class="Delimiter">),</span> <span class="Constant">"ab"</span><span class="Delimiter">);</span> +<span id="L121" class="LineNr">121 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">" a "</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> +<span id="L122" class="LineNr">122 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">" a "</span><span class="Delimiter">),</span> <span class="Constant">"a"</span><span class="Delimiter">);</span> +<span id="L123" class="LineNr">123 </span> <a href='002test.cc.html#L31'>CHECK_EQ</a><span class="Delimiter">(</span><a href='003trace.cc.html#L378'>trim</a><span class="Delimiter">(</span><span class="Constant">" ab "</span><span class="Delimiter">),</span> <span class="Constant">"ab"</span><span class="Delimiter">);</span> <span id="L124" class="LineNr">124 </span><span class="Delimiter">}</span> </pre> </body> diff --git a/html/subx/010vm.cc.html b/html/subx/010vm.cc.html new file mode 100644 index 00000000..3c1aa5f3 --- /dev/null +++ b/html/subx/010vm.cc.html @@ -0,0 +1,296 @@ +<!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 - subx/010vm.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.SalientComment { color: #00ffff; } +.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; } +.CommentedCode { color: #6c6c6c; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Core data structures for simulating the SubX VM (subset of an x86 processor)</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">//:</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: At the lowest level ("level 1") of abstraction, SubX executes x86</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment">//: instructions provided in the form of an array of bytes, loaded into memory</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: starting at a specific address.</span> +<span id="L6" class="LineNr"> 6 </span> +<span id="L7" class="LineNr"> 7 </span><span class="SalientComment">//:: registers</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment">//: assume segment registers are hard-coded to 0</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment">//: no floating-point, MMX, etc. yet</span> +<span id="L10" class="LineNr"> 10 </span> +<span id="L11" class="LineNr"> 11 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L12" class="LineNr"> 12 </span><span class="Normal">enum</span> <span class="Delimiter">{</span> +<span id="L13" class="LineNr"> 13 </span> <a href='010vm.cc.html#L13'>EAX</a><span class="Delimiter">,</span> +<span id="L14" class="LineNr"> 14 </span> <a href='010vm.cc.html#L14'>ECX</a><span class="Delimiter">,</span> +<span id="L15" class="LineNr"> 15 </span> <a href='010vm.cc.html#L15'>EDX</a><span class="Delimiter">,</span> +<span id="L16" class="LineNr"> 16 </span> <a href='010vm.cc.html#L16'>EBX</a><span class="Delimiter">,</span> +<span id="L17" class="LineNr"> 17 </span> <a href='010vm.cc.html#L17'>ESP</a><span class="Delimiter">,</span> +<span id="L18" class="LineNr"> 18 </span> <a href='010vm.cc.html#L18'>EBP</a><span class="Delimiter">,</span> +<span id="L19" class="LineNr"> 19 </span> <a href='010vm.cc.html#L19'>ESI</a><span class="Delimiter">,</span> +<span id="L20" class="LineNr"> 20 </span> <a href='010vm.cc.html#L20'>EDI</a><span class="Delimiter">,</span> +<span id="L21" class="LineNr"> 21 </span> <a href='010vm.cc.html#L21'>NUM_INT_REGISTERS</a><span class="Delimiter">,</span> +<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">};</span> +<span id="L23" class="LineNr"> 23 </span><span class="Normal">union</span> <a href='010vm.cc.html#L23'>reg</a> <span class="Delimiter">{</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Normal">int32_t</span> i<span class="Delimiter">;</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Normal">uint32_t</span> u<span class="Delimiter">;</span> +<span id="L26" class="LineNr"> 26 </span><span class="Delimiter">};</span> +<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L28" class="LineNr"> 28 </span><a href='010vm.cc.html#L23'>reg</a> Reg[NUM_INT_REGISTERS] = <span class="Delimiter">{</span> <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">}</span> <span class="Delimiter">};</span> +<span id="L29" class="LineNr"> 29 </span><span class="Normal">uint32_t</span> <a href='010vm.cc.html#L29'>EIP</a> = <span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// preserve null pointer</span> +<span id="L30" class="LineNr"> 30 </span><span class="Delimiter">:(before "End Reset")</span> +<span id="L31" class="LineNr"> 31 </span>bzero<span class="Delimiter">(</span><a href='010vm.cc.html#L28'>Reg</a><span class="Delimiter">,</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span><a href='010vm.cc.html#L28'>Reg</a><span class="Delimiter">));</span> +<span id="L32" class="LineNr"> 32 </span><a href='010vm.cc.html#L29'>EIP</a> = <span class="Constant">1</span><span class="Delimiter">;</span> <span class="Comment">// preserve null pointer</span> +<span id="L33" class="LineNr"> 33 </span> +<span id="L34" class="LineNr"> 34 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span> +<span id="L35" class="LineNr"> 35 </span>cerr << <span class="Constant">" registers</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L36" class="LineNr"> 36 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Texts")</span> +<span id="L37" class="LineNr"> 37 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"registers"</span><span class="Delimiter">,</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Constant">"SubX currently supports eight 32-bit integer registers: R0 to R7.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L39" class="LineNr"> 39 </span> <span class="Constant">"R4 (ESP) contains the top of the stack.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L41" class="LineNr"> 41 </span> <span class="Constant">"There's also a register for the address of the currently executing</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Constant">"instruction. It is modified by jumps.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Constant">"Various instructions modify one or more of three 1-bit 'flag' registers,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Constant">"as a side-effect:</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Constant">"- the sign flag (SF): usually set if an arithmetic result is negative, or</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Constant">" <a href='000organization.cc.html#L148'>reset</a> if not.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Constant">"- the zero flag (ZF): usually set if a result is zero, or <a href='000organization.cc.html#L148'>reset</a> if not.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Constant">"- the overflow flag (OF): usually set if an arithmetic result overflows.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Constant">"The flag bits are read by conditional jumps.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Constant">"We don't support non-integer (floating-point) registers yet.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L53" class="LineNr"> 53 </span><span class="Delimiter">);</span> +<span id="L54" class="LineNr"> 54 </span> +<span id="L55" class="LineNr"> 55 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L56" class="LineNr"> 56 </span><span class="Comment">// the subset of x86 flag registers we care about</span> +<span id="L57" class="LineNr"> 57 </span><span class="Normal">bool</span> SF =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// sign flag</span> +<span id="L58" class="LineNr"> 58 </span><span class="Normal">bool</span> ZF =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// zero flag</span> +<span id="L59" class="LineNr"> 59 </span><span class="Normal">bool</span> <a href='010vm.cc.html#L59'>OF</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> <span class="Comment">// overflow flag</span> +<span id="L60" class="LineNr"> 60 </span><span class="Delimiter">:(before "End Reset")</span> +<span id="L61" class="LineNr"> 61 </span>SF = ZF = <a href='010vm.cc.html#L59'>OF</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L62" class="LineNr"> 62 </span> +<span id="L63" class="LineNr"> 63 </span><span class="Comment">//: how the flag registers are updated after each instruction</span> +<span id="L64" class="LineNr"> 64 </span> +<span id="L65" class="LineNr"> 65 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L66" class="LineNr"> 66 </span><span class="Comment">// Combine 'arg1' and 'arg2' with arithmetic operation 'op' and store the</span> +<span id="L67" class="LineNr"> 67 </span><span class="Comment">// result in 'arg1', then update flags.</span> +<span id="L68" class="LineNr"> 68 </span><span class="Comment">// beware: no side-effects in args</span> +<span id="L69" class="LineNr"> 69 </span><span class="Comment">#define BINARY_ARITHMETIC_OP(op, arg1, arg2) { \</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Comment">/*</span><span class="Comment"> arg1 and arg2 must be signed </span><span class="Comment">*/</span> \ +<span id="L71" class="LineNr"> 71 </span> <span class="Normal">int64_t</span> tmp = arg1 op arg2<span class="Delimiter">;</span> \ +<span id="L72" class="LineNr"> 72 </span> arg1 = arg1 op arg2<span class="Delimiter">;</span> \ +<span id="L73" class="LineNr"> 73 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg1 << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> \ +<span id="L74" class="LineNr"> 74 </span> SF = <span class="Delimiter">(</span>arg1 < <span class="Constant">0</span><span class="Delimiter">);</span> \ +<span id="L75" class="LineNr"> 75 </span> ZF = <span class="Delimiter">(</span>arg1 == <span class="Constant">0</span><span class="Delimiter">);</span> \ +<span id="L76" class="LineNr"> 76 </span> <a href='010vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>arg1 != tmp<span class="Delimiter">);</span> \ +<span id="L77" class="LineNr"> 77 </span><span class="Delimiter">}</span> +<span id="L78" class="LineNr"> 78 </span> +<span id="L79" class="LineNr"> 79 </span><span class="Comment">// Combine 'arg1' and 'arg2' with bitwise operation 'op' and store the result</span> +<span id="L80" class="LineNr"> 80 </span><span class="Comment">// in 'arg1', then update flags.</span> +<span id="L81" class="LineNr"> 81 </span><span class="Comment">#define BINARY_BITWISE_OP(op, arg1, arg2) { \</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Comment">/*</span><span class="Comment"> arg1 and arg2 must be unsigned </span><span class="Comment">*/</span> \ +<span id="L83" class="LineNr"> 83 </span> arg1 = arg1 op arg2<span class="Delimiter">;</span> \ +<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg1 << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> \ +<span id="L85" class="LineNr"> 85 </span> SF = <span class="Delimiter">(</span>arg1 >> <span class="Constant">31</span><span class="Delimiter">);</span> \ +<span id="L86" class="LineNr"> 86 </span> ZF = <span class="Delimiter">(</span>arg1 == <span class="Constant">0</span><span class="Delimiter">);</span> \ +<span id="L87" class="LineNr"> 87 </span> <a href='010vm.cc.html#L59'>OF</a> =<span class="Constant"> false</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="SalientComment">//:: simulated RAM</span> +<span id="L91" class="LineNr"> 91 </span> +<span id="L92" class="LineNr"> 92 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L93" class="LineNr"> 93 </span>vector<<span class="Normal">uint8_t</span>> <a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">;</span> +<span id="L94" class="LineNr"> 94 </span><span class="Normal">uint32_t</span> <a href='010vm.cc.html#L94'>Mem_offset</a> = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L95" class="LineNr"> 95 </span><span class="Normal">uint32_t</span> <a href='010vm.cc.html#L95'>End_of_program</a> = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L96" class="LineNr"> 96 </span><span class="Delimiter">:(before "End Reset")</span> +<span id="L97" class="LineNr"> 97 </span><a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>clear<span class="Delimiter">();</span> +<span id="L98" class="LineNr"> 98 </span><a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1024</span><span class="Delimiter">);</span> +<span id="L99" class="LineNr"> 99 </span><a href='010vm.cc.html#L94'>Mem_offset</a> = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L100" class="LineNr">100 </span><a href='010vm.cc.html#L95'>End_of_program</a> = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L101" class="LineNr">101 </span><span class="Delimiter">:(code)</span> +<span id="L102" class="LineNr">102 </span><span class="Comment">// These helpers depend on Mem being laid out contiguously (so you can't use a</span> +<span id="L103" class="LineNr">103 </span><span class="Comment">// map, etc.) and on the host also being little-endian.</span> +<span id="L104" class="LineNr">104 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span> <a href='010vm.cc.html#L104'>read_mem_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L105" class="LineNr">105 </span> <span class="Identifier">return</span> <a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">);</span> +<span id="L106" class="LineNr">106 </span><span class="Delimiter">}</span> +<span id="L107" class="LineNr">107 </span><span class="Normal">inline</span> <span class="Normal">int8_t</span> <a href='010vm.cc.html#L107'>read_mem_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L108" class="LineNr">108 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">int8_t</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> +<span id="L109" class="LineNr">109 </span><span class="Delimiter">}</span> +<span id="L110" class="LineNr">110 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span> <a href='010vm.cc.html#L110'>read_mem_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L111" class="LineNr">111 </span> <span class="Identifier">return</span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> +<span id="L112" class="LineNr">112 </span><span class="Delimiter">}</span> +<span id="L113" class="LineNr">113 </span><span class="Normal">inline</span> <span class="Normal">int32_t</span> <a href='010vm.cc.html#L113'>read_mem_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L114" class="LineNr">114 </span> <span class="Identifier">return</span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">int32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> +<span id="L115" class="LineNr">115 </span><span class="Delimiter">}</span> +<span id="L116" class="LineNr">116 </span> +<span id="L117" class="LineNr">117 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span>* <a href='010vm.cc.html#L117'>mem_addr_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L118" class="LineNr">118 </span> <span class="Identifier">return</span> &Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">);</span> +<span id="L119" class="LineNr">119 </span><span class="Delimiter">}</span> +<span id="L120" class="LineNr">120 </span><span class="Normal">inline</span> <span class="Normal">int8_t</span>* <a href='010vm.cc.html#L120'>mem_addr_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L121" class="LineNr">121 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">int8_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> +<span id="L122" class="LineNr">122 </span><span class="Delimiter">}</span> +<span id="L123" class="LineNr">123 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span>* <a href='010vm.cc.html#L123'>mem_addr_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L124" class="LineNr">124 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> +<span id="L125" class="LineNr">125 </span><span class="Delimiter">}</span> +<span id="L126" class="LineNr">126 </span><span class="Normal">inline</span> <span class="Normal">int32_t</span>* <a href='010vm.cc.html#L126'>mem_addr_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L127" class="LineNr">127 </span> <span class="Identifier">return</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">int32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">));</span> +<span id="L128" class="LineNr">128 </span><span class="Delimiter">}</span> +<span id="L129" class="LineNr">129 </span> +<span id="L130" class="LineNr">130 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010vm.cc.html#L130'>write_mem_u8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L131" class="LineNr">131 </span> <a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">)</span> = val<span class="Delimiter">;</span> +<span id="L132" class="LineNr">132 </span><span class="Delimiter">}</span> +<span id="L133" class="LineNr">133 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010vm.cc.html#L133'>write_mem_i8</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">int8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L134" class="LineNr">134 </span> <a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">)</span> = <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>><span class="Delimiter">(</span>val<span class="Delimiter">);</span> +<span id="L135" class="LineNr">135 </span><span class="Delimiter">}</span> +<span id="L136" class="LineNr">136 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010vm.cc.html#L136'>write_mem_u32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L137" class="LineNr">137 </span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">uint32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">))</span> = val<span class="Delimiter">;</span> +<span id="L138" class="LineNr">138 </span><span class="Delimiter">}</span> +<span id="L139" class="LineNr">139 </span><span class="Normal">inline</span> <span class="Normal">void</span> <a href='010vm.cc.html#L139'>write_mem_i32</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> addr<span class="Delimiter">,</span> <span class="Normal">int32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L140" class="LineNr">140 </span> *<span class="Normal">reinterpret_cast</span><<span class="Normal">int32_t</span>*><span class="Delimiter">(</span>&Mem<span class="Delimiter">.</span>at<span class="Delimiter">(</span>addr-Mem_offset<span class="Delimiter">))</span> = val<span class="Delimiter">;</span> +<span id="L141" class="LineNr">141 </span><span class="Delimiter">}</span> +<span id="L142" class="LineNr">142 </span> +<span id="L143" class="LineNr">143 </span><span class="SalientComment">//:: core interpreter loop</span> +<span id="L144" class="LineNr">144 </span> +<span id="L145" class="LineNr">145 </span><span class="Delimiter">:(code)</span> +<span id="L146" class="LineNr">146 </span><span class="Comment">// skeleton of how x86 instructions are decoded</span> +<span id="L147" class="LineNr">147 </span><span class="Normal">void</span> <a href='010vm.cc.html#L147'>run_one_instruction</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L148" class="LineNr">148 </span> <span class="Normal">uint8_t</span> op=<span class="Constant">0</span><span class="Delimiter">,</span> op2=<span class="Constant">0</span><span class="Delimiter">,</span> op3=<span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L149" class="LineNr">149 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"inst: 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << <a href='010vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L150" class="LineNr">150 </span><span class="CommentedCode">//? cerr << "inst: 0x" << EIP << '\n';</span> +<span id="L151" class="LineNr">151 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>op = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L152" class="LineNr">152 </span> <span class="Normal">case</span> <span class="Constant">0xf4</span>: <span class="Comment">// hlt</span> +<span id="L153" class="LineNr">153 </span> <a href='010vm.cc.html#L29'>EIP</a> = <a href='010vm.cc.html#L95'>End_of_program</a><span class="Delimiter">;</span> +<span id="L154" class="LineNr">154 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L155" class="LineNr">155 </span> <span class="Comment">// End Single-Byte Opcodes</span> +<span id="L156" class="LineNr">156 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: +<span id="L157" class="LineNr">157 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L158" class="LineNr">158 </span> <span class="Comment">// End Two-Byte Opcodes Starting With 0f</span> +<span id="L159" class="LineNr">159 </span> <span class="Normal">default</span>: +<span id="L160" class="LineNr">160 </span> cerr << <span class="Constant">"unrecognized second opcode after 0f: "</span> << <a href='010vm.cc.html#L227'>HEXBYTE</a> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L161" class="LineNr">161 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L162" class="LineNr">162 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L163" class="LineNr">163 </span> <span class="Delimiter">}</span> +<span id="L164" class="LineNr">164 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L165" class="LineNr">165 </span> <span class="Normal">case</span> <span class="Constant">0xf3</span>: +<span id="L166" class="LineNr">166 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op2 = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L167" class="LineNr">167 </span> <span class="Comment">// End Two-Byte Opcodes Starting With f3</span> +<span id="L168" class="LineNr">168 </span> <span class="Normal">case</span> <span class="Constant">0x0f</span>: +<span id="L169" class="LineNr">169 </span> <span class="Normal">switch</span><span class="Delimiter">(</span>op3 = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L170" class="LineNr">170 </span> <span class="Comment">// End Three-Byte Opcodes Starting With f3 0f</span> +<span id="L171" class="LineNr">171 </span> <span class="Normal">default</span>: +<span id="L172" class="LineNr">172 </span> cerr << <span class="Constant">"unrecognized third opcode after f3 0f: "</span> << <a href='010vm.cc.html#L227'>HEXBYTE</a> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>op3<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L173" class="LineNr">173 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L174" class="LineNr">174 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L175" class="LineNr">175 </span> <span class="Delimiter">}</span> +<span id="L176" class="LineNr">176 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L177" class="LineNr">177 </span> <span class="Normal">default</span>: +<span id="L178" class="LineNr">178 </span> cerr << <span class="Constant">"unrecognized second opcode after f3: "</span> << <a href='010vm.cc.html#L227'>HEXBYTE</a> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>op2<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L179" class="LineNr">179 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L180" class="LineNr">180 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L181" class="LineNr">181 </span> <span class="Delimiter">}</span> +<span id="L182" class="LineNr">182 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L183" class="LineNr">183 </span> <span class="Normal">default</span>: +<span id="L184" class="LineNr">184 </span> cerr << <span class="Constant">"unrecognized opcode: "</span> << <a href='010vm.cc.html#L227'>HEXBYTE</a> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L185" class="LineNr">185 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span> +<span id="L186" class="LineNr">186 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L187" class="LineNr">187 </span> <span class="Delimiter">}</span> +<span id="L188" class="LineNr">188 </span><span class="Delimiter">}</span> +<span id="L189" class="LineNr">189 </span> +<span id="L190" class="LineNr">190 </span><span class="Normal">inline</span> <span class="Normal">uint8_t</span> <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L191" class="LineNr">191 </span> <span class="Identifier">return</span> <a href='010vm.cc.html#L104'>read_mem_u8</a><span class="Delimiter">(</span>EIP++<span class="Delimiter">);</span> +<span id="L192" class="LineNr">192 </span><span class="Delimiter">}</span> +<span id="L193" class="LineNr">193 </span> +<span id="L194" class="LineNr">194 </span><span class="Comment">//: start tracking supported opcodes</span> +<span id="L195" class="LineNr">195 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L196" class="LineNr">196 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010vm.cc.html#L196'>name</a><span class="Delimiter">;</span> +<span id="L197" class="LineNr">197 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">;</span> +<span id="L198" class="LineNr">198 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010vm.cc.html#L198'>name_f3</a><span class="Delimiter">;</span> +<span id="L199" class="LineNr">199 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> string> <a href='010vm.cc.html#L199'>name_f3_0f</a><span class="Delimiter">;</span> +<span id="L200" class="LineNr">200 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L201" class="LineNr">201 </span><a href='010vm.cc.html#L203'>init_op_names</a><span class="Delimiter">();</span> +<span id="L202" class="LineNr">202 </span><span class="Delimiter">:(code)</span> +<span id="L203" class="LineNr">203 </span><span class="Normal">void</span> <a href='010vm.cc.html#L203'>init_op_names</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L204" class="LineNr">204 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"f4"</span><span class="Delimiter">,</span> <span class="Constant">"halt"</span><span class="Delimiter">);</span> +<span id="L205" class="LineNr">205 </span> <span class="Comment">// End Initialize Op Names(name)</span> +<span id="L206" class="LineNr">206 </span><span class="Delimiter">}</span> +<span id="L207" class="LineNr">207 </span> +<span id="L208" class="LineNr">208 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Special-cases(key)")</span> +<span id="L209" class="LineNr">209 </span><span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">"opcodes"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L210" class="LineNr">210 </span> cerr << <span class="Constant">"Opcodes currently supported by SubX:</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L211" class="LineNr">211 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010vm.cc.html#L196'>name</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010vm.cc.html#L196'>name</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L212" class="LineNr">212 </span> cerr << <span class="Constant">" "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L213" class="LineNr">213 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L214" class="LineNr">214 </span> cerr << <span class="Constant">" 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L215" class="LineNr">215 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010vm.cc.html#L198'>name_f3</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010vm.cc.html#L198'>name_f3</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L216" class="LineNr">216 </span> cerr << <span class="Constant">" f3 "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L217" class="LineNr">217 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> string>::iterator p = <a href='010vm.cc.html#L199'>name_f3_0f</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='010vm.cc.html#L199'>name_f3_0f</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L218" class="LineNr">218 </span> cerr << <span class="Constant">" f3 0f "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">": "</span> << p<span class="Delimiter">-></span>second << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L219" class="LineNr">219 </span> cerr << <span class="Constant">"Run `subx help instructions` for details on <a href='011run.cc.html#L109'>words</a> like 'r32' and 'disp8'.</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L220" class="LineNr">220 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L221" class="LineNr">221 </span><span class="Delimiter">}</span> +<span id="L222" class="LineNr">222 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span> +<span id="L223" class="LineNr">223 </span>cerr << <span class="Constant">" opcodes</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L224" class="LineNr">224 </span> +<span id="L225" class="LineNr">225 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L226" class="LineNr">226 </span><span class="Comment">#include <iomanip></span> +<span id="L227" class="LineNr">227 </span><span class="Comment">#define HEXBYTE std::hex << std::setw(2) << std::setfill('0')</span> +<span id="L228" class="LineNr">228 </span><span class="Comment">#define HEXWORD std::hex << std::setw(8) << std::setfill('0')</span> +<span id="L229" class="LineNr">229 </span><span class="Comment">// ugly that iostream doesn't print uint8_t as an integer</span> +<span id="L230" class="LineNr">230 </span><span class="Comment">#define NUM(X) static_cast<int>(X)</span> +<span id="L231" class="LineNr">231 </span><span class="Comment">#include <stdint.h></span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/011run.cc.html b/html/subx/011run.cc.html new file mode 100644 index 00000000..0f5aec0f --- /dev/null +++ b/html/subx/011run.cc.html @@ -0,0 +1,325 @@ +<!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 - subx/011run.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.SalientComment { color: #00ffff; } +.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; } +.traceContains { color: #008000; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Running SubX programs on the VM.</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: (Not to be confused with the 'run' subcommand for running ELF binaries on</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment">//: the VM. That comes later.)</span> +<span id="L5" class="LineNr"> 5 </span> +<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Texts")</span> +<span id="L7" class="LineNr"> 7 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"syntax"</span><span class="Delimiter">,</span> +<span id="L8" class="LineNr"> 8 </span> <span class="Constant">"SubX programs consist of <a href='011run.cc.html#L95'>segments</a>, each segment in turn consisting of lines.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L9" class="LineNr"> 9 </span> <span class="Constant">"Line-endings are significant; each <a href='011run.cc.html#L108'>line</a> should contain a single</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L10" class="LineNr"> 10 </span> <span class="Constant">"instruction, macro or directive.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L11" class="LineNr"> 11 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L12" class="LineNr"> 12 </span> <span class="Constant">"Comments <a href='011run.cc.html#L103'>start</a> with the '#' character. It should be at the <a href='011run.cc.html#L103'>start</a> of a <a href='011run.cc.html#L113'>word</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L13" class="LineNr"> 13 </span> <span class="Constant">"(start of <a href='011run.cc.html#L108'>line</a>, or following a space).</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L14" class="LineNr"> 14 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L15" class="LineNr"> 15 </span> <span class="Constant">"Each segment starts with a header <a href='011run.cc.html#L108'>line</a>: a '==' delimiter followed by the</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L16" class="LineNr"> 16 </span> <span class="Constant">"starting address for the segment.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L17" class="LineNr"> 17 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L18" class="LineNr"> 18 </span> <span class="Constant">"The starting address for a segment has some finicky requirements. But just</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L19" class="LineNr"> 19 </span> <span class="Constant">"start with a round number, and `subx` will try to guide you to a valid</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L20" class="LineNr"> 20 </span> <span class="Constant">"configuration.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L21" class="LineNr"> 21 </span> <span class="Constant">"A good rule of thumb is to try to <a href='011run.cc.html#L103'>start</a> the first segment at the default</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L22" class="LineNr"> 22 </span> <span class="Constant">"address of 0x08048000, and to <a href='011run.cc.html#L103'>start</a> each subsequent segment at least 0x1000</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Constant">"(most common page size) bytes after the last.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Constant">"If a segment occupies than 0x1000 bytes you'll need to push subsequent</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Constant">"segments further down.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L26" class="LineNr"> 26 </span> <span class="Constant">"Currently only the first segment contains executable code (because it gets</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L27" class="LineNr"> 27 </span> <span class="Constant">"annoying to have to change addresses in later <a href='011run.cc.html#L95'>segments</a> every time an earlier</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Constant">"one changes length; one of those finicky requirements).</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L29" class="LineNr"> 29 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Constant">"Lines consist of a series of words. Words can contain arbitrary metadata</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L31" class="LineNr"> 31 </span> <span class="Constant">"after a '/', but they can never contain whitespace. Metadata has no effect</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Constant">"at runtime, but can be handy when rewriting macros.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L33" class="LineNr"> 33 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Constant">"Check out some examples in this directory (ex*.subx)</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Constant">"Programming in machine code can be annoying, but let's see if we can make</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Constant">"it nice enough to be able to write a compiler in it.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L37" class="LineNr"> 37 </span><span class="Delimiter">);</span> +<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span> +<span id="L39" class="LineNr"> 39 </span>cerr << <span class="Constant">" syntax</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L40" class="LineNr"> 40 </span> +<span id="L41" class="LineNr"> 41 </span><span class="Delimiter">:(scenario add_imm32_to_eax)</span> +<span id="L42" class="LineNr"> 42 </span><span class="Comment"># At the lowest level, SubX programs are a series of hex bytes, each</span> +<span id="L43" class="LineNr"> 43 </span><span class="Comment"># (variable-length) instruction on one line.</span> +<span id="L44" class="LineNr"> 44 </span><span class="Comment">#</span> +<span id="L45" class="LineNr"> 45 </span><span class="Comment"># Later we'll make things nicer using macros. But you'll always be able to</span> +<span id="L46" class="LineNr"> 46 </span><span class="Comment"># insert hex bytes out of instructions.</span> +<span id="L47" class="LineNr"> 47 </span><span class="Comment">#</span> +<span id="L48" class="LineNr"> 48 </span><span class="Comment"># As you can see, comments start with '#' and are ignored.</span> +<span id="L49" class="LineNr"> 49 </span> +<span id="L50" class="LineNr"> 50 </span><span class="Comment"># Segment headers start with '==', specifying the hex address where they</span> +<span id="L51" class="LineNr"> 51 </span><span class="Comment"># begin. The first segment is always assumed to be code.</span> +<span id="L52" class="LineNr"> 52 </span>== <span class="Constant">0x1</span> +<span id="L53" class="LineNr"> 53 </span> +<span id="L54" class="LineNr"> 54 </span><span class="Comment"># We don't show it here, but all lines can have metadata after a ':'.</span> +<span id="L55" class="LineNr"> 55 </span><span class="Comment"># All words can have metadata after a '/'. No spaces allowed in word metadata, of course.</span> +<span id="L56" class="LineNr"> 56 </span><span class="Comment"># Metadata doesn't directly form instructions, but some macros may look at it.</span> +<span id="L57" class="LineNr"> 57 </span><span class="Comment"># Unrecognized metadata never causes errors, so you can also use it for</span> +<span id="L58" class="LineNr"> 58 </span><span class="Comment"># documentation.</span> +<span id="L59" class="LineNr"> 59 </span> +<span id="L60" class="LineNr"> 60 </span><span class="Comment"># Within the code segment, x86 instructions consist of the following parts (see cheatsheet.pdf):</span> +<span id="L61" class="LineNr"> 61 </span><span class="Comment"># opcode ModR/M SIB displacement immediate</span> +<span id="L62" class="LineNr"> 62 </span><span class="Comment"># instruction mod, reg, Reg/Mem bits scale, index, base</span> +<span id="L63" class="LineNr"> 63 </span><span class="Comment"># 1-3 bytes 0/1 byte 0/1 byte 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L64" class="LineNr"> 64 </span> <span class="PreProc">0</span><span class="Constant">5</span> 0a 0b 0c 0d <span class="Comment"># add 0x0d0c0b0a to EAX</span> +<span id="L65" class="LineNr"> 65 </span> +<span id="L66" class="LineNr"> 66 </span><span class="Comment"># This program, when run, causes the following events in the trace:</span> +<span id="L67" class="LineNr"> 67 </span><span class="traceContains">+load: 0x00000001 -> 05</span> +<span id="L68" class="LineNr"> 68 </span><span class="traceContains">+load: 0x00000002 -> 0a</span> +<span id="L69" class="LineNr"> 69 </span><span class="traceContains">+load: 0x00000003 -> 0b</span> +<span id="L70" class="LineNr"> 70 </span><span class="traceContains">+load: 0x00000004 -> 0c</span> +<span id="L71" class="LineNr"> 71 </span><span class="traceContains">+load: 0x00000005 -> 0d</span> +<span id="L72" class="LineNr"> 72 </span><span class="traceContains">+run: add <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a to <a href='010vm.cc.html#L23'>reg</a> <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L73" class="LineNr"> 73 </span><span class="traceContains">+run: storing 0x0d0c0b0a</span> +<span id="L74" class="LineNr"> 74 </span> +<span id="L75" class="LineNr"> 75 </span><span class="Delimiter">:(code)</span> +<span id="L76" class="LineNr"> 76 </span><span class="Comment">// top-level helper for scenarios: parse the input, transform any macros, load</span> +<span id="L77" class="LineNr"> 77 </span><span class="Comment">// the final hex bytes into memory, run it</span> +<span id="L78" class="LineNr"> 78 </span><span class="Normal">void</span> <a href='011run.cc.html#L78'>run</a><span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L79" class="LineNr"> 79 </span> <a href='011run.cc.html#L94'>program</a> p<span class="Delimiter">;</span> +<span id="L80" class="LineNr"> 80 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> +<span id="L81" class="LineNr"> 81 </span> <a href='011run.cc.html#L122'>parse</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// if any stage raises errors, stop immediately</span> +<span id="L83" class="LineNr"> 83 </span> transform<span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L85" class="LineNr"> 85 </span> <a href='011run.cc.html#L195'>load</a><span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L86" class="LineNr"> 86 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L87" class="LineNr"> 87 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='010vm.cc.html#L29'>EIP</a> < <a href='010vm.cc.html#L95'>End_of_program</a><span class="Delimiter">)</span> +<span id="L88" class="LineNr"> 88 </span> <a href='010vm.cc.html#L147'>run_one_instruction</a><span class="Delimiter">();</span> +<span id="L89" class="LineNr"> 89 </span><span class="Delimiter">}</span> +<span id="L90" class="LineNr"> 90 </span> +<span id="L91" class="LineNr"> 91 </span><span class="SalientComment">//:: core data structures</span> +<span id="L92" class="LineNr"> 92 </span> +<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L94" class="LineNr"> 94 </span><span class="Normal">struct</span> <a href='011run.cc.html#L94'>program</a> <span class="Delimiter">{</span> +<span id="L95" class="LineNr"> 95 </span> vector<segment> <a href='011run.cc.html#L95'>segments</a><span class="Delimiter">;</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Comment">// random ideas for other things we may eventually need</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Comment">//map<name, address> globals;</span> +<span id="L98" class="LineNr"> 98 </span> <span class="Comment">//vector<recipe> recipes;</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Comment">//map<string, type_info> types;</span> +<span id="L100" class="LineNr">100 </span><span class="Delimiter">};</span> +<span id="L101" class="LineNr">101 </span><span class="Delimiter">:(before "struct program")</span> +<span id="L102" class="LineNr">102 </span><span class="Normal">struct</span> segment <span class="Delimiter">{</span> +<span id="L103" class="LineNr">103 </span> <span class="Normal">uint32_t</span> <a href='011run.cc.html#L103'>start</a><span class="Delimiter">;</span> +<span id="L104" class="LineNr">104 </span> vector<line> <a href='011run.cc.html#L104'>lines</a><span class="Delimiter">;</span> +<span id="L105" class="LineNr">105 </span> segment<span class="Delimiter">()</span> :<a href='011run.cc.html#L103'>start</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span> +<span id="L106" class="LineNr">106 </span><span class="Delimiter">};</span> +<span id="L107" class="LineNr">107 </span><span class="Delimiter">:(before "struct segment")</span> +<span id="L108" class="LineNr">108 </span><span class="Normal">struct</span> <a href='011run.cc.html#L108'>line</a> <span class="Delimiter">{</span> +<span id="L109" class="LineNr">109 </span> vector<word> <a href='011run.cc.html#L109'>words</a><span class="Delimiter">;</span> +<span id="L110" class="LineNr">110 </span> vector<string> metadata<span class="Delimiter">;</span> +<span id="L111" class="LineNr">111 </span><span class="Delimiter">};</span> +<span id="L112" class="LineNr">112 </span><span class="Delimiter">:(before "struct line")</span> +<span id="L113" class="LineNr">113 </span><span class="Normal">struct</span> <a href='011run.cc.html#L113'>word</a> <span class="Delimiter">{</span> +<span id="L114" class="LineNr">114 </span> string <a href='011run.cc.html#L114'>original</a><span class="Delimiter">;</span> +<span id="L115" class="LineNr">115 </span> string <a href='011run.cc.html#L115'>data</a><span class="Delimiter">;</span> +<span id="L116" class="LineNr">116 </span> vector<string> metadata<span class="Delimiter">;</span> +<span id="L117" class="LineNr">117 </span><span class="Delimiter">};</span> +<span id="L118" class="LineNr">118 </span> +<span id="L119" class="LineNr">119 </span><span class="SalientComment">//:: parse</span> +<span id="L120" class="LineNr">120 </span> +<span id="L121" class="LineNr">121 </span><span class="Delimiter">:(code)</span> +<span id="L122" class="LineNr">122 </span><span class="Normal">void</span> <a href='011run.cc.html#L122'>parse</a><span class="Delimiter">(</span>istream& fin<span class="Delimiter">,</span> program& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L123" class="LineNr">123 </span> vector<line> l<span class="Delimiter">;</span> +<span id="L124" class="LineNr">124 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L125" class="LineNr">125 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>fin<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L126" class="LineNr">126 </span> string line_data<span class="Delimiter">;</span> +<span id="L127" class="LineNr">127 </span> getline<span class="Delimiter">(</span>fin<span class="Delimiter">,</span> line_data<span class="Delimiter">);</span> +<span id="L128" class="LineNr">128 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"line: "</span> << line_data << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L129" class="LineNr">129 </span> istringstream lin<span class="Delimiter">(</span>line_data<span class="Delimiter">);</span> +<span id="L130" class="LineNr">130 </span> vector<word> w<span class="Delimiter">;</span> +<span id="L131" class="LineNr">131 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L260'>has_data</a><span class="Delimiter">(</span>lin<span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L132" class="LineNr">132 </span> string word_data<span class="Delimiter">;</span> +<span id="L133" class="LineNr">133 </span> lin >> word_data<span class="Delimiter">;</span> +<span id="L134" class="LineNr">134 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L135" class="LineNr">135 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data == <span class="Constant">"=="</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L136" class="LineNr">136 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!l<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L137" class="LineNr">137 </span> assert<span class="Delimiter">(</span>!out<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">());</span> +<span id="L138" class="LineNr">138 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"flushing to segment"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L139" class="LineNr">139 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>l<span class="Delimiter">);</span> +<span id="L140" class="LineNr">140 </span> <span class="Delimiter">}</span> +<span id="L141" class="LineNr">141 </span> segment s<span class="Delimiter">;</span> +<span id="L142" class="LineNr">142 </span> lin >> std::hex >> s<span class="Delimiter">.</span><a href='011run.cc.html#L103'>start</a><span class="Delimiter">;</span> +<span id="L143" class="LineNr">143 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"new segment from "</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << s<span class="Delimiter">.</span><a href='011run.cc.html#L103'>start</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L144" class="LineNr">144 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>s<span class="Delimiter">);</span> +<span id="L145" class="LineNr">145 </span> <span class="Comment">// todo?</span> +<span id="L146" class="LineNr">146 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> <span class="Comment">// skip rest of line</span> +<span id="L147" class="LineNr">147 </span> <span class="Delimiter">}</span> +<span id="L148" class="LineNr">148 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data[<span class="Constant">0</span>] == <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L149" class="LineNr">149 </span> <span class="Comment">// todo: line metadata</span> +<span id="L150" class="LineNr">150 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L151" class="LineNr">151 </span> <span class="Delimiter">}</span> +<span id="L152" class="LineNr">152 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>word_data[<span class="Constant">0</span>] == <span class="Constant">'#'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L153" class="LineNr">153 </span> <span class="Comment">// comment</span> +<span id="L154" class="LineNr">154 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L155" class="LineNr">155 </span> <span class="Delimiter">}</span> +<span id="L156" class="LineNr">156 </span> w<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L113'>word</a><span class="Delimiter">());</span> +<span id="L157" class="LineNr">157 </span> w<span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L114'>original</a> = word_data<span class="Delimiter">;</span> +<span id="L158" class="LineNr">158 </span> istringstream win<span class="Delimiter">(</span>word_data<span class="Delimiter">);</span> +<span id="L159" class="LineNr">159 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>getline<span class="Delimiter">(</span>win<span class="Delimiter">,</span> w<span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L160" class="LineNr">160 </span> string m<span class="Delimiter">;</span> +<span id="L161" class="LineNr">161 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>getline<span class="Delimiter">(</span>win<span class="Delimiter">,</span> m<span class="Delimiter">,</span> <span class="Constant">'/'</span><span class="Delimiter">))</span> +<span id="L162" class="LineNr">162 </span> w<span class="Delimiter">.</span>back<span class="Delimiter">().</span>metadata<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>m<span class="Delimiter">);</span> +<span id="L163" class="LineNr">163 </span> <span class="Delimiter">}</span> +<span id="L164" class="LineNr">164 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"new <a href='011run.cc.html#L113'>word</a>: "</span> << w<span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L115'>data</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L165" class="LineNr">165 </span> <span class="Delimiter">}</span> +<span id="L166" class="LineNr">166 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!w<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L167" class="LineNr">167 </span> l<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='011run.cc.html#L108'>line</a><span class="Delimiter">());</span> +<span id="L168" class="LineNr">168 </span> l<span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>w<span class="Delimiter">);</span> +<span id="L169" class="LineNr">169 </span> <span class="Delimiter">}</span> +<span id="L170" class="LineNr">170 </span> <span class="Delimiter">}</span> +<span id="L171" class="LineNr">171 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!l<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L172" class="LineNr">172 </span> assert<span class="Delimiter">(</span>!out<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">());</span> +<span id="L173" class="LineNr">173 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"flushing to segment"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L174" class="LineNr">174 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>back<span class="Delimiter">().</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>l<span class="Delimiter">);</span> +<span id="L175" class="LineNr">175 </span> <span class="Delimiter">}</span> +<span id="L176" class="LineNr">176 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"parse"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span> +<span id="L178" class="LineNr">178 </span> +<span id="L179" class="LineNr">179 </span><span class="SalientComment">//:: transform</span> +<span id="L180" class="LineNr">180 </span> +<span id="L181" class="LineNr">181 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L182" class="LineNr">182 </span><span class="Normal">typedef</span> <span class="Normal">void</span> <span class="Delimiter">(</span>*transform_fn<span class="Delimiter">)(</span>program&<span class="Delimiter">);</span> +<span id="L183" class="LineNr">183 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L184" class="LineNr">184 </span>vector<transform_fn> <a href='011run.cc.html#L184'>Transform</a><span class="Delimiter">;</span> +<span id="L185" class="LineNr">185 </span> +<span id="L186" class="LineNr">186 </span><span class="Normal">void</span> transform<span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L187" class="LineNr">187 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L188" class="LineNr">188 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> t = <span class="Constant">0</span><span class="Delimiter">;</span> t < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='011run.cc.html#L184'>Transform</a><span class="Delimiter">);</span> ++t<span class="Delimiter">)</span> +<span id="L189" class="LineNr">189 </span> <span class="Delimiter">(</span>*Transform<span class="Delimiter">.</span>at<span class="Delimiter">(</span>t<span class="Delimiter">))(</span>p<span class="Delimiter">);</span> +<span id="L190" class="LineNr">190 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L191" class="LineNr">191 </span><span class="Delimiter">}</span> +<span id="L192" class="LineNr">192 </span> +<span id="L193" class="LineNr">193 </span><span class="SalientComment">//:: load</span> +<span id="L194" class="LineNr">194 </span> +<span id="L195" class="LineNr">195 </span><span class="Normal">void</span> <a href='011run.cc.html#L195'>load</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L196" class="LineNr">196 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"begin"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L197" class="LineNr">197 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L198" class="LineNr">198 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"no code to <a href='011run.cc.html#L78'>run</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L199" class="LineNr">199 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L200" class="LineNr">200 </span> <span class="Delimiter">}</span> +<span id="L201" class="LineNr">201 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L202" class="LineNr">202 </span> <span class="Normal">const</span> segment& seg = p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L203" class="LineNr">203 </span> <span class="Normal">uint32_t</span> addr = seg<span class="Delimiter">.</span><a href='011run.cc.html#L103'>start</a><span class="Delimiter">;</span> +<span id="L204" class="LineNr">204 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"loading segment "</span> << i << <span class="Constant">" from "</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << addr << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L205" class="LineNr">205 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>seg<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L206" class="LineNr">206 </span> <span class="Normal">const</span> line& l = seg<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L207" class="LineNr">207 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> k = <span class="Constant">0</span><span class="Delimiter">;</span> k < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>l<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++k<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L208" class="LineNr">208 </span> <span class="Normal">const</span> word& w = l<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>k<span class="Delimiter">);</span> +<span id="L209" class="LineNr">209 </span> <span class="Normal">uint8_t</span> val = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L210" class="LineNr">210 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L211" class="LineNr">211 </span> <a href='010vm.cc.html#L130'>write_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">,</span> val<span class="Delimiter">);</span> +<span id="L212" class="LineNr">212 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << addr << <span class="Constant">" -> "</span> << <a href='010vm.cc.html#L227'>HEXBYTE</a> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span><a href='010vm.cc.html#L104'>read_mem_u8</a><span class="Delimiter">(</span>addr<span class="Delimiter">))</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L213" class="LineNr">213 </span> ++addr<span class="Delimiter">;</span> +<span id="L214" class="LineNr">214 </span> <span class="Delimiter">}</span> +<span id="L215" class="LineNr">215 </span> <span class="Delimiter">}</span> +<span id="L216" class="LineNr">216 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i == <span class="Constant">0</span><span class="Delimiter">)</span> <a href='010vm.cc.html#L95'>End_of_program</a> = addr<span class="Delimiter">;</span> +<span id="L217" class="LineNr">217 </span> <span class="Delimiter">}</span> +<span id="L218" class="LineNr">218 </span> <a href='010vm.cc.html#L29'>EIP</a> = p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L103'>start</a><span class="Delimiter">;</span> +<span id="L219" class="LineNr">219 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"load"</span><span class="Delimiter">)</span> << <span class="Constant">"done"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L220" class="LineNr">220 </span><span class="Delimiter">}</span> +<span id="L221" class="LineNr">221 </span> +<span id="L222" class="LineNr">222 </span><span class="Normal">uint8_t</span> <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L223" class="LineNr">223 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span> +<span id="L224" class="LineNr">224 </span> <span class="Normal">int</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L225" class="LineNr">225 </span> in >> std::hex >> result<span class="Delimiter">;</span> +<span id="L226" class="LineNr">226 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L227" class="LineNr">227 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"invalid hex "</span> << s << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L228" class="LineNr">228 </span> <span class="Identifier">return</span> <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> +<span id="L229" class="LineNr">229 </span> <span class="Delimiter">}</span> +<span id="L230" class="LineNr">230 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result > <span class="Constant">0xff</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L231" class="LineNr">231 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"invalid hex byte "</span> << std::hex << result << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L232" class="LineNr">232 </span> <span class="Identifier">return</span> <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> +<span id="L233" class="LineNr">233 </span> <span class="Delimiter">}</span> +<span id="L234" class="LineNr">234 </span> <span class="Identifier">return</span> <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>><span class="Delimiter">(</span>result<span class="Delimiter">);</span> +<span id="L235" class="LineNr">235 </span><span class="Delimiter">}</span> +<span id="L236" class="LineNr">236 </span> +<span id="L237" class="LineNr">237 </span><span class="SalientComment">//:: run</span> +<span id="L238" class="LineNr">238 </span> +<span id="L239" class="LineNr">239 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L240" class="LineNr">240 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"05"</span><span class="Delimiter">,</span> <span class="Constant">"add <a href='011run.cc.html#L253'>imm32</a> to R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L241" class="LineNr">241 </span> +<span id="L242" class="LineNr">242 </span><span class="Comment">//: our first opcode</span> +<span id="L243" class="LineNr">243 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L244" class="LineNr">244 </span><span class="Normal">case</span> <span class="Constant">0x05</span>: <span class="Delimiter">{</span> <span class="Comment">// add imm32 to EAX</span> +<span id="L245" class="LineNr">245 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L246" class="LineNr">246 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <span class="Constant">" to <a href='010vm.cc.html#L23'>reg</a> EAX"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L247" class="LineNr">247 </span> <a href='010vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L248" class="LineNr">248 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L249" class="LineNr">249 </span><span class="Delimiter">}</span> +<span id="L250" class="LineNr">250 </span> +<span id="L251" class="LineNr">251 </span><span class="Delimiter">:(code)</span> +<span id="L252" class="LineNr">252 </span><span class="Comment">// read a 32-bit immediate in little-endian order from the instruction stream</span> +<span id="L253" class="LineNr">253 </span><span class="Normal">int32_t</span> <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L254" class="LineNr">254 </span> <span class="Normal">int32_t</span> result = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L255" class="LineNr">255 </span> result |= <span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">()</span><<<span class="Constant">8</span><span class="Delimiter">);</span> +<span id="L256" class="LineNr">256 </span> result |= <span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">()</span><<<span class="Constant">16</span><span class="Delimiter">);</span> +<span id="L257" class="LineNr">257 </span> result |= <span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">()</span><<<span class="Constant">24</span><span class="Delimiter">);</span> +<span id="L258" class="LineNr">258 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L259" class="LineNr">259 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/012direct_addressing.cc.html b/html/subx/012direct_addressing.cc.html new file mode 100644 index 00000000..2ec9add6 --- /dev/null +++ b/html/subx/012direct_addressing.cc.html @@ -0,0 +1,464 @@ +<!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 - subx/012direct_addressing.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.Special { color: #c00000; } +.SalientComment { color: #00ffff; } +.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; } +.traceContains { color: #008000; } +.Error { color: #ffffff; background-color: #ff6060; padding-bottom: 1px; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: operating directly on a register</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"01"</span><span class="Delimiter">,</span> <span class="Constant">"add r32 to rm32"</span><span class="Delimiter">);</span> +<span id="L5" class="LineNr"> 5 </span> +<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario add_r32_to_r32)</span> +<span id="L7" class="LineNr"> 7 </span><span class="Special">% Reg[EAX].i = 0x10;</span> +<span id="L8" class="LineNr"> 8 </span><span class="Special">% Reg[EBX].i = 1;</span> +<span id="L9" class="LineNr"> 9 </span>== <span class="Constant">0x1</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L11" class="LineNr"> 11 </span> <span class="PreProc">0</span><span class="Constant">1</span> d8 <span class="Comment"># add EBX to EAX</span> +<span id="L12" class="LineNr"> 12 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L13" class="LineNr"> 13 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L16" class="LineNr"> 16 </span> +<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L18" class="LineNr"> 18 </span><span class="Normal">case</span> <span class="Constant">0x01</span>: <span class="Delimiter">{</span> <span class="Comment">// add r32 to r/m32</span> +<span id="L19" class="LineNr"> 19 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L20" class="LineNr"> 20 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" to r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L22" class="LineNr"> 22 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L23" class="LineNr"> 23 </span> <a href='010vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>i<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="Comment">// Implement tables 2-2 and 2-3 in the Intel manual, Volume 2.</span> +<span id="L29" class="LineNr"> 29 </span><span class="Comment">// We return a pointer so that instructions can write to multiple bytes in</span> +<span id="L30" class="LineNr"> 30 </span><span class="Comment">// 'Mem' at once.</span> +<span id="L31" class="LineNr"> 31 </span><span class="Normal">int32_t</span>* <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> modrm<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Normal">uint8_t</span> mod = <span class="Delimiter">(</span>modrm>><span class="Constant">6</span><span class="Delimiter">);</span> +<span id="L33" class="LineNr"> 33 </span> <span class="Comment">// ignore middle 3 'reg opcode' bits</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Normal">uint8_t</span> rm = modrm & <span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">uint32_t</span> addr = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>mod<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">case</span> <span class="Constant">3</span>: +<span id="L38" class="LineNr"> 38 </span> <span class="Comment">// mod 3 is just register direct addressing</span> +<span id="L39" class="LineNr"> 39 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"r/m32 is "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Identifier">return</span> &Reg[rm]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> +<span id="L41" class="LineNr"> 41 </span> <span class="Comment">// End Mod Special-cases(addr)</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Normal">default</span>: +<span id="L43" class="LineNr"> 43 </span> cerr << <span class="Constant">"unrecognized mod bits: "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>mod<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L44" class="LineNr"> 44 </span> exit<span class="Delimiter">(</span><span class="Constant">1</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="Comment">//: other mods are indirect, and they'll set addr appropriately</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Identifier">return</span> <a href='010vm.cc.html#L126'>mem_addr_i32</a><span class="Delimiter">(</span>addr<span class="Delimiter">);</span> +<span id="L48" class="LineNr"> 48 </span><span class="Delimiter">}</span> +<span id="L49" class="LineNr"> 49 </span> +<span id="L50" class="LineNr"> 50 </span>string <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> r<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>r<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Normal">case</span> <span class="Constant">0</span>: <span class="Identifier">return</span> <span class="Constant">"EAX"</span><span class="Delimiter">;</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Normal">case</span> <span class="Constant">1</span>: <span class="Identifier">return</span> <span class="Constant">"ECX"</span><span class="Delimiter">;</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Normal">case</span> <span class="Constant">2</span>: <span class="Identifier">return</span> <span class="Constant">"EDX"</span><span class="Delimiter">;</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Normal">case</span> <span class="Constant">3</span>: <span class="Identifier">return</span> <span class="Constant">"EBX"</span><span class="Delimiter">;</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Normal">case</span> <span class="Constant">4</span>: <span class="Identifier">return</span> <span class="Constant">"ESP"</span><span class="Delimiter">;</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Normal">case</span> <span class="Constant">5</span>: <span class="Identifier">return</span> <span class="Constant">"EBP"</span><span class="Delimiter">;</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Normal">case</span> <span class="Constant">6</span>: <span class="Identifier">return</span> <span class="Constant">"ESI"</span><span class="Delimiter">;</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Normal">case</span> <span class="Constant">7</span>: <span class="Identifier">return</span> <span class="Constant">"EDI"</span><span class="Delimiter">;</span> +<span id="L60" class="LineNr"> 60 </span> <span class="Normal">default</span>: <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"invalid register "</span> << r << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Delimiter">}</span> +<span id="L62" class="LineNr"> 62 </span><span class="Delimiter">}</span> +<span id="L63" class="LineNr"> 63 </span> +<span id="L64" class="LineNr"> 64 </span><span class="SalientComment">//:: subtract</span> +<span id="L65" class="LineNr"> 65 </span> +<span id="L66" class="LineNr"> 66 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L67" class="LineNr"> 67 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"29"</span><span class="Delimiter">,</span> <span class="Constant">"subtract r32 from rm32"</span><span class="Delimiter">);</span> +<span id="L68" class="LineNr"> 68 </span> +<span id="L69" class="LineNr"> 69 </span><span class="Delimiter">:(scenario subtract_r32_from_r32)</span> +<span id="L70" class="LineNr"> 70 </span><span class="Special">% Reg[EAX].i = 10;</span> +<span id="L71" class="LineNr"> 71 </span><span class="Special">% Reg[EBX].i = 1;</span> +<span id="L72" class="LineNr"> 72 </span>== <span class="Constant">0x1</span> +<span id="L73" class="LineNr"> 73 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Constant">29</span> d8 <span class="Comment"># subtract EBX from EAX</span> +<span id="L75" class="LineNr"> 75 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L76" class="LineNr"> 76 </span><span class="traceContains">+run: subtract <a href='010vm.cc.html#L16'>EBX</a> from r/m32</span> +<span id="L77" class="LineNr"> 77 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L78" class="LineNr"> 78 </span><span class="traceContains">+run: storing 0x00000009</span> +<span id="L79" class="LineNr"> 79 </span> +<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L81" class="LineNr"> 81 </span><span class="Normal">case</span> <span class="Constant">0x29</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract r32 from r/m32</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" from r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L86" class="LineNr"> 86 </span> <a href='010vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>i<span class="Delimiter">);</span> +<span id="L87" class="LineNr"> 87 </span> <span class="Identifier">break</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="SalientComment">//:: and</span> +<span id="L91" class="LineNr"> 91 </span> +<span id="L92" class="LineNr"> 92 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L93" class="LineNr"> 93 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"21"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise AND of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L94" class="LineNr"> 94 </span> +<span id="L95" class="LineNr"> 95 </span><span class="Delimiter">:(scenario and_r32_with_r32)</span> +<span id="L96" class="LineNr"> 96 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> +<span id="L97" class="LineNr"> 97 </span><span class="Special">% Reg[EBX].i = 0x000000ff;</span> +<span id="L98" class="LineNr"> 98 </span>== <span class="Constant">0x1</span> +<span id="L99" class="LineNr"> 99 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L100" class="LineNr">100 </span> <span class="Constant">21</span> d8 <span class="Comment"># and EBX with destination EAX</span> +<span id="L101" class="LineNr">101 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L102" class="LineNr">102 </span><span class="traceContains">+run: and <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L103" class="LineNr">103 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L104" class="LineNr">104 </span><span class="traceContains">+run: storing 0x0000000d</span> +<span id="L105" class="LineNr">105 </span> +<span id="L106" class="LineNr">106 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L107" class="LineNr">107 </span><span class="Normal">case</span> <span class="Constant">0x21</span>: <span class="Delimiter">{</span> <span class="Comment">// and r32 with r/m32</span> +<span id="L108" class="LineNr">108 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L109" class="LineNr">109 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L110" class="LineNr">110 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L111" class="LineNr">111 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L112" class="LineNr">112 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L113" class="LineNr">113 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L114" class="LineNr">114 </span><span class="Delimiter">}</span> +<span id="L115" class="LineNr">115 </span> +<span id="L116" class="LineNr">116 </span><span class="SalientComment">//:: or</span> +<span id="L117" class="LineNr">117 </span> +<span id="L118" class="LineNr">118 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L119" class="LineNr">119 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"09"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise OR of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L120" class="LineNr">120 </span> +<span id="L121" class="LineNr">121 </span><span class="Delimiter">:(scenario or_r32_with_r32)</span> +<span id="L122" class="LineNr">122 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> +<span id="L123" class="LineNr">123 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> +<span id="L124" class="LineNr">124 </span>== <span class="Constant">0x1</span> +<span id="L125" class="LineNr">125 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L126" class="LineNr">126 </span> <span class="Error">09</span> d8 <span class="Comment"># or EBX with destination EAX</span> +<span id="L127" class="LineNr">127 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L128" class="LineNr">128 </span><span class="traceContains">+run: or <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L129" class="LineNr">129 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L130" class="LineNr">130 </span><span class="traceContains">+run: storing 0xaabbccdd</span> +<span id="L131" class="LineNr">131 </span> +<span id="L132" class="LineNr">132 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L133" class="LineNr">133 </span><span class="Normal">case</span> <span class="Constant">0x09</span>: <span class="Delimiter">{</span> <span class="Comment">// or r32 with r/m32</span> +<span id="L134" class="LineNr">134 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L135" class="LineNr">135 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L136" class="LineNr">136 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L137" class="LineNr">137 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L138" class="LineNr">138 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L139" class="LineNr">139 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L140" class="LineNr">140 </span><span class="Delimiter">}</span> +<span id="L141" class="LineNr">141 </span> +<span id="L142" class="LineNr">142 </span><span class="SalientComment">//:: xor</span> +<span id="L143" class="LineNr">143 </span> +<span id="L144" class="LineNr">144 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L145" class="LineNr">145 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"31"</span><span class="Delimiter">,</span> <span class="Constant">"rm32 = bitwise XOR of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L146" class="LineNr">146 </span> +<span id="L147" class="LineNr">147 </span><span class="Delimiter">:(scenario xor_r32_with_r32)</span> +<span id="L148" class="LineNr">148 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> +<span id="L149" class="LineNr">149 </span><span class="Special">% Reg[EBX].i = 0xaabbc0d0;</span> +<span id="L150" class="LineNr">150 </span>== <span class="Constant">0x1</span> +<span id="L151" class="LineNr">151 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L152" class="LineNr">152 </span> <span class="Constant">31</span> d8 <span class="Comment"># xor EBX with destination EAX</span> +<span id="L153" class="LineNr">153 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L154" class="LineNr">154 </span><span class="traceContains">+run: xor <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L155" class="LineNr">155 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L156" class="LineNr">156 </span><span class="traceContains">+run: storing 0xa0b0ccdd</span> +<span id="L157" class="LineNr">157 </span> +<span id="L158" class="LineNr">158 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L159" class="LineNr">159 </span><span class="Normal">case</span> <span class="Constant">0x31</span>: <span class="Delimiter">{</span> <span class="Comment">// xor r32 with r/m32</span> +<span id="L160" class="LineNr">160 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L161" class="LineNr">161 </span> <span class="Normal">uint8_t</span> arg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L162" class="LineNr">162 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L163" class="LineNr">163 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L164" class="LineNr">164 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>^<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> Reg[arg2]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L165" class="LineNr">165 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L166" class="LineNr">166 </span><span class="Delimiter">}</span> +<span id="L167" class="LineNr">167 </span> +<span id="L168" class="LineNr">168 </span><span class="SalientComment">//:: not</span> +<span id="L169" class="LineNr">169 </span> +<span id="L170" class="LineNr">170 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L171" class="LineNr">171 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"f7"</span><span class="Delimiter">,</span> <span class="Constant">"bitwise complement of rm32"</span><span class="Delimiter">);</span> +<span id="L172" class="LineNr">172 </span> +<span id="L173" class="LineNr">173 </span><span class="Delimiter">:(scenario not_r32)</span> +<span id="L174" class="LineNr">174 </span><span class="Special">% Reg[EBX].i = 0x0f0f00ff;</span> +<span id="L175" class="LineNr">175 </span>== <span class="Constant">0x1</span> +<span id="L176" class="LineNr">176 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L177" class="LineNr">177 </span> f7 c3 <span class="Comment"># not EBX</span> +<span id="L178" class="LineNr">178 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 000 (unused) 011 (dest EBX)</span> +<span id="L179" class="LineNr">179 </span><span class="traceContains">+run: 'not' of r/m32</span> +<span id="L180" class="LineNr">180 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L181" class="LineNr">181 </span><span class="traceContains">+run: storing 0xf0f0ff00</span> +<span id="L182" class="LineNr">182 </span> +<span id="L183" class="LineNr">183 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L184" class="LineNr">184 </span><span class="Normal">case</span> <span class="Constant">0xf7</span>: <span class="Delimiter">{</span> <span class="Comment">// xor r32 with r/m32</span> +<span id="L185" class="LineNr">185 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L186" class="LineNr">186 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"'not' of r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L187" class="LineNr">187 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L188" class="LineNr">188 </span> *arg1 = ~<span class="Delimiter">(</span>*arg1<span class="Delimiter">);</span> +<span id="L189" class="LineNr">189 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << *arg1 << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L190" class="LineNr">190 </span> SF = <span class="Delimiter">(</span>*arg1 >> <span class="Constant">31</span><span class="Delimiter">);</span> +<span id="L191" class="LineNr">191 </span> ZF = <span class="Delimiter">(</span>*arg1 == <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L192" class="LineNr">192 </span> <a href='010vm.cc.html#L59'>OF</a> =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L193" class="LineNr">193 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L194" class="LineNr">194 </span><span class="Delimiter">}</span> +<span id="L195" class="LineNr">195 </span> +<span id="L196" class="LineNr">196 </span><span class="SalientComment">//:: compare (cmp)</span> +<span id="L197" class="LineNr">197 </span> +<span id="L198" class="LineNr">198 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L199" class="LineNr">199 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"39"</span><span class="Delimiter">,</span> <span class="Constant">"set SF if rm32 < r32"</span><span class="Delimiter">);</span> +<span id="L200" class="LineNr">200 </span> +<span id="L201" class="LineNr">201 </span><span class="Delimiter">:(scenario compare_r32_with_r32_greater)</span> +<span id="L202" class="LineNr">202 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> +<span id="L203" class="LineNr">203 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c07;</span> +<span id="L204" class="LineNr">204 </span>== <span class="Constant">0x1</span> +<span id="L205" class="LineNr">205 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L206" class="LineNr">206 </span> <span class="Constant">39</span> d8 <span class="Comment"># compare EBX with EAX</span> +<span id="L207" class="LineNr">207 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L208" class="LineNr">208 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L209" class="LineNr">209 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L210" class="LineNr">210 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> +<span id="L211" class="LineNr">211 </span> +<span id="L212" class="LineNr">212 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L213" class="LineNr">213 </span><span class="Normal">case</span> <span class="Constant">0x39</span>: <span class="Delimiter">{</span> <span class="Comment">// set SF if r/m32 < r32</span> +<span id="L214" class="LineNr">214 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L215" class="LineNr">215 </span> <span class="Normal">uint8_t</span> reg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L216" class="LineNr">216 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L217" class="LineNr">217 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L218" class="LineNr">218 </span> <span class="Normal">int32_t</span> arg2 = Reg[reg2]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> +<span id="L219" class="LineNr">219 </span> <span class="Normal">int32_t</span> tmp1 = *arg1 - arg2<span class="Delimiter">;</span> +<span id="L220" class="LineNr">220 </span> SF = <span class="Delimiter">(</span>tmp1 < <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L221" class="LineNr">221 </span> ZF = <span class="Delimiter">(</span>tmp1 == <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L222" class="LineNr">222 </span> <span class="Normal">int64_t</span> tmp2 = *arg1 - arg2<span class="Delimiter">;</span> +<span id="L223" class="LineNr">223 </span> <a href='010vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>tmp1 != tmp2<span class="Delimiter">);</span> +<span id="L224" class="LineNr">224 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010vm.cc.html#L59'>OF</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L225" class="LineNr">225 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L226" class="LineNr">226 </span><span class="Delimiter">}</span> +<span id="L227" class="LineNr">227 </span> +<span id="L228" class="LineNr">228 </span><span class="Delimiter">:(scenario compare_r32_with_r32_lesser)</span> +<span id="L229" class="LineNr">229 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c07;</span> +<span id="L230" class="LineNr">230 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> +<span id="L231" class="LineNr">231 </span>== <span class="Constant">0x1</span> +<span id="L232" class="LineNr">232 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L233" class="LineNr">233 </span> <span class="Constant">39</span> d8 <span class="Comment"># compare EBX with EAX</span> +<span id="L234" class="LineNr">234 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L235" class="LineNr">235 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L236" class="LineNr">236 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L237" class="LineNr">237 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> +<span id="L238" class="LineNr">238 </span> +<span id="L239" class="LineNr">239 </span><span class="Delimiter">:(scenario compare_r32_with_r32_equal)</span> +<span id="L240" class="LineNr">240 </span><span class="Special">% Reg[EAX].i = 0x0a0b0c0d;</span> +<span id="L241" class="LineNr">241 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> +<span id="L242" class="LineNr">242 </span>== <span class="Constant">0x1</span> +<span id="L243" class="LineNr">243 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L244" class="LineNr">244 </span> <span class="Constant">39</span> d8 <span class="Comment"># compare EBX with EAX</span> +<span id="L245" class="LineNr">245 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L246" class="LineNr">246 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L247" class="LineNr">247 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L248" class="LineNr">248 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> +<span id="L249" class="LineNr">249 </span> +<span id="L250" class="LineNr">250 </span><span class="SalientComment">//:: copy (mov)</span> +<span id="L251" class="LineNr">251 </span> +<span id="L252" class="LineNr">252 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L253" class="LineNr">253 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"89"</span><span class="Delimiter">,</span> <span class="Constant">"copy r32 to rm32"</span><span class="Delimiter">);</span> +<span id="L254" class="LineNr">254 </span> +<span id="L255" class="LineNr">255 </span><span class="Delimiter">:(scenario copy_r32_to_r32)</span> +<span id="L256" class="LineNr">256 </span><span class="Special">% Reg[EBX].i = 0xaf;</span> +<span id="L257" class="LineNr">257 </span>== <span class="Constant">0x1</span> +<span id="L258" class="LineNr">258 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L259" class="LineNr">259 </span> <span class="Constant">89</span> d8 <span class="Comment"># copy EBX to EAX</span> +<span id="L260" class="LineNr">260 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L261" class="LineNr">261 </span><span class="traceContains">+run: copy <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L262" class="LineNr">262 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L263" class="LineNr">263 </span><span class="traceContains">+run: storing 0x000000af</span> +<span id="L264" class="LineNr">264 </span> +<span id="L265" class="LineNr">265 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L266" class="LineNr">266 </span><span class="Normal">case</span> <span class="Constant">0x89</span>: <span class="Delimiter">{</span> <span class="Comment">// copy r32 to r/m32</span> +<span id="L267" class="LineNr">267 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L268" class="LineNr">268 </span> <span class="Normal">uint8_t</span> reg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L269" class="LineNr">269 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" to r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L270" class="LineNr">270 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L271" class="LineNr">271 </span> *arg1 = Reg[reg2]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> +<span id="L272" class="LineNr">272 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << *arg1 << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L273" class="LineNr">273 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L274" class="LineNr">274 </span><span class="Delimiter">}</span> +<span id="L275" class="LineNr">275 </span> +<span id="L276" class="LineNr">276 </span><span class="SalientComment">//:: xchg</span> +<span id="L277" class="LineNr">277 </span> +<span id="L278" class="LineNr">278 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L279" class="LineNr">279 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"87"</span><span class="Delimiter">,</span> <span class="Constant">"swap the <a href='003trace.cc.html#L74'>contents</a> of r32 and rm32"</span><span class="Delimiter">);</span> +<span id="L280" class="LineNr">280 </span> +<span id="L281" class="LineNr">281 </span><span class="Delimiter">:(scenario xchg_r32_with_r32)</span> +<span id="L282" class="LineNr">282 </span><span class="Special">% Reg[EBX].i = 0xaf;</span> +<span id="L283" class="LineNr">283 </span><span class="Special">% Reg[EAX].i = 0x2e;</span> +<span id="L284" class="LineNr">284 </span>== <span class="Constant">0x1</span> +<span id="L285" class="LineNr">285 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L286" class="LineNr">286 </span> <span class="Constant">87</span> d8 <span class="Comment"># exchange EBX with EAX</span> +<span id="L287" class="LineNr">287 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L288" class="LineNr">288 </span><span class="traceContains">+run: exchange <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L289" class="LineNr">289 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L290" class="LineNr">290 </span><span class="traceContains">+run: storing 0x000000af in r/m32</span> +<span id="L291" class="LineNr">291 </span><span class="traceContains">+run: storing 0x0000002e in <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L292" class="LineNr">292 </span> +<span id="L293" class="LineNr">293 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L294" class="LineNr">294 </span><span class="Normal">case</span> <span class="Constant">0x87</span>: <span class="Delimiter">{</span> <span class="Comment">// exchange r32 with r/m32</span> +<span id="L295" class="LineNr">295 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L296" class="LineNr">296 </span> <span class="Normal">uint8_t</span> reg2 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L297" class="LineNr">297 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"exchange "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L298" class="LineNr">298 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L299" class="LineNr">299 </span> <span class="Normal">int32_t</span> tmp = *arg1<span class="Delimiter">;</span> +<span id="L300" class="LineNr">300 </span> *arg1 = Reg[reg2]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> +<span id="L301" class="LineNr">301 </span> Reg[reg2]<span class="Delimiter">.</span>i = tmp<span class="Delimiter">;</span> +<span id="L302" class="LineNr">302 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << *arg1 << <span class="Constant">" in r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L303" class="LineNr">303 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << Reg[reg2]<span class="Delimiter">.</span>i << <span class="Constant">" in "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>reg2<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L304" class="LineNr">304 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L305" class="LineNr">305 </span><span class="Delimiter">}</span> +<span id="L306" class="LineNr">306 </span> +<span id="L307" class="LineNr">307 </span><span class="SalientComment">//:: push</span> +<span id="L308" class="LineNr">308 </span> +<span id="L309" class="LineNr">309 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L310" class="LineNr">310 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"50"</span><span class="Delimiter">,</span> <span class="Constant">"push R0 (EAX) to stack"</span><span class="Delimiter">);</span> +<span id="L311" class="LineNr">311 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"51"</span><span class="Delimiter">,</span> <span class="Constant">"push R1 (ECX) to stack"</span><span class="Delimiter">);</span> +<span id="L312" class="LineNr">312 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"52"</span><span class="Delimiter">,</span> <span class="Constant">"push R2 (EDX) to stack"</span><span class="Delimiter">);</span> +<span id="L313" class="LineNr">313 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"53"</span><span class="Delimiter">,</span> <span class="Constant">"push R3 (EBX) to stack"</span><span class="Delimiter">);</span> +<span id="L314" class="LineNr">314 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"54"</span><span class="Delimiter">,</span> <span class="Constant">"push R4 (ESP) to stack"</span><span class="Delimiter">);</span> +<span id="L315" class="LineNr">315 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"55"</span><span class="Delimiter">,</span> <span class="Constant">"push R5 (EBP) to stack"</span><span class="Delimiter">);</span> +<span id="L316" class="LineNr">316 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"56"</span><span class="Delimiter">,</span> <span class="Constant">"push R6 (ESI) to stack"</span><span class="Delimiter">);</span> +<span id="L317" class="LineNr">317 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"57"</span><span class="Delimiter">,</span> <span class="Constant">"push R7 (EDI) to stack"</span><span class="Delimiter">);</span> +<span id="L318" class="LineNr">318 </span> +<span id="L319" class="LineNr">319 </span><span class="Delimiter">:(scenario push_r32)</span> +<span id="L320" class="LineNr">320 </span><span class="Special">% Reg[ESP].u = 0x64;</span> +<span id="L321" class="LineNr">321 </span><span class="Special">% Reg[EBX].i = 0x0000000a;</span> +<span id="L322" class="LineNr">322 </span>== <span class="Constant">0x1</span> +<span id="L323" class="LineNr">323 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L324" class="LineNr">324 </span> <span class="Constant">53</span> <span class="Comment"># push EBX to stack</span> +<span id="L325" class="LineNr">325 </span><span class="traceContains">+run: <a href='012direct_addressing.cc.html#L344'>push</a> <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L326" class="LineNr">326 </span><span class="traceContains">+run: decrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x00000060</span> +<span id="L327" class="LineNr">327 </span><span class="traceContains">+run: pushing value 0x0000000a</span> +<span id="L328" class="LineNr">328 </span> +<span id="L329" class="LineNr">329 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L330" class="LineNr">330 </span><span class="Normal">case</span> <span class="Constant">0x50</span>: +<span id="L331" class="LineNr">331 </span><span class="Normal">case</span> <span class="Constant">0x51</span>: +<span id="L332" class="LineNr">332 </span><span class="Normal">case</span> <span class="Constant">0x52</span>: +<span id="L333" class="LineNr">333 </span><span class="Normal">case</span> <span class="Constant">0x53</span>: +<span id="L334" class="LineNr">334 </span><span class="Normal">case</span> <span class="Constant">0x54</span>: +<span id="L335" class="LineNr">335 </span><span class="Normal">case</span> <span class="Constant">0x55</span>: +<span id="L336" class="LineNr">336 </span><span class="Normal">case</span> <span class="Constant">0x56</span>: +<span id="L337" class="LineNr">337 </span><span class="Normal">case</span> <span class="Constant">0x57</span>: <span class="Delimiter">{</span> <span class="Comment">// push r32 to stack</span> +<span id="L338" class="LineNr">338 </span> <span class="Normal">uint8_t</span> <a href='010vm.cc.html#L23'>reg</a> = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L339" class="LineNr">339 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span><a href='010vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L340" class="LineNr">340 </span> <a href='012direct_addressing.cc.html#L344'>push</a><span class="Delimiter">(</span>Reg[reg]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L341" class="LineNr">341 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L342" class="LineNr">342 </span><span class="Delimiter">}</span> +<span id="L343" class="LineNr">343 </span><span class="Delimiter">:(code)</span> +<span id="L344" class="LineNr">344 </span><span class="Normal">void</span> <a href='012direct_addressing.cc.html#L344'>push</a><span class="Delimiter">(</span><span class="Normal">uint32_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L345" class="LineNr">345 </span> Reg[ESP]<span class="Delimiter">.</span>u -= <span class="Constant">4</span><span class="Delimiter">;</span> +<span id="L346" class="LineNr">346 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"decrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L347" class="LineNr">347 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pushing value 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << val << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L348" class="LineNr">348 </span> <a href='010vm.cc.html#L136'>write_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> val<span class="Delimiter">);</span> +<span id="L349" class="LineNr">349 </span><span class="Delimiter">}</span> +<span id="L350" class="LineNr">350 </span> +<span id="L351" class="LineNr">351 </span><span class="SalientComment">//:: pop</span> +<span id="L352" class="LineNr">352 </span> +<span id="L353" class="LineNr">353 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L354" class="LineNr">354 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"58"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L355" class="LineNr">355 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"59"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R1 (ECX)"</span><span class="Delimiter">);</span> +<span id="L356" class="LineNr">356 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"5a"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R2 (EDX)"</span><span class="Delimiter">);</span> +<span id="L357" class="LineNr">357 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"5b"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R3 (EBX)"</span><span class="Delimiter">);</span> +<span id="L358" class="LineNr">358 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"5c"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R4 (ESP)"</span><span class="Delimiter">);</span> +<span id="L359" class="LineNr">359 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"5d"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R5 (EBP)"</span><span class="Delimiter">);</span> +<span id="L360" class="LineNr">360 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"5e"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R6 (ESI)"</span><span class="Delimiter">);</span> +<span id="L361" class="LineNr">361 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"5f"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to R7 (EDI)"</span><span class="Delimiter">);</span> +<span id="L362" class="LineNr">362 </span> +<span id="L363" class="LineNr">363 </span><span class="Delimiter">:(scenario pop_r32)</span> +<span id="L364" class="LineNr">364 </span><span class="Special">% Reg[ESP].u = 0x60;</span> +<span id="L365" class="LineNr">365 </span><span class="Special">% write_mem_i32(0x60, 0x0000000a);</span> +<span id="L366" class="LineNr">366 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L367" class="LineNr">367 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L368" class="LineNr">368 </span> 5b <span class="Comment"># pop stack to EBX</span> +<span id="L369" class="LineNr">369 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L370" class="LineNr">370 </span>0a <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0x0a</span> +<span id="L371" class="LineNr">371 </span><span class="traceContains">+run: <a href='012direct_addressing.cc.html#L390'>pop</a> into <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L372" class="LineNr">372 </span><span class="traceContains">+run: popping value 0x0000000a</span> +<span id="L373" class="LineNr">373 </span><span class="traceContains">+run: incrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x00000064</span> +<span id="L374" class="LineNr">374 </span> +<span id="L375" class="LineNr">375 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L376" class="LineNr">376 </span><span class="Normal">case</span> <span class="Constant">0x58</span>: +<span id="L377" class="LineNr">377 </span><span class="Normal">case</span> <span class="Constant">0x59</span>: +<span id="L378" class="LineNr">378 </span><span class="Normal">case</span> <span class="Constant">0x5a</span>: +<span id="L379" class="LineNr">379 </span><span class="Normal">case</span> <span class="Constant">0x5b</span>: +<span id="L380" class="LineNr">380 </span><span class="Normal">case</span> <span class="Constant">0x5c</span>: +<span id="L381" class="LineNr">381 </span><span class="Normal">case</span> <span class="Constant">0x5d</span>: +<span id="L382" class="LineNr">382 </span><span class="Normal">case</span> <span class="Constant">0x5e</span>: +<span id="L383" class="LineNr">383 </span><span class="Normal">case</span> <span class="Constant">0x5f</span>: <span class="Delimiter">{</span> <span class="Comment">// pop stack into r32</span> +<span id="L384" class="LineNr">384 </span> <span class="Normal">uint8_t</span> <a href='010vm.cc.html#L23'>reg</a> = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L385" class="LineNr">385 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pop into "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span><a href='010vm.cc.html#L23'>reg</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L386" class="LineNr">386 </span> Reg[reg]<span class="Delimiter">.</span>u = <a href='012direct_addressing.cc.html#L390'>pop</a><span class="Delimiter">();</span> +<span id="L387" class="LineNr">387 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L388" class="LineNr">388 </span><span class="Delimiter">}</span> +<span id="L389" class="LineNr">389 </span><span class="Delimiter">:(code)</span> +<span id="L390" class="LineNr">390 </span><span class="Normal">uint32_t</span> <a href='012direct_addressing.cc.html#L390'>pop</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L391" class="LineNr">391 </span> <span class="Normal">uint32_t</span> result = <a href='010vm.cc.html#L110'>read_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L392" class="LineNr">392 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"popping value 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << result << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L393" class="LineNr">393 </span> Reg[ESP]<span class="Delimiter">.</span>u += <span class="Constant">4</span><span class="Delimiter">;</span> +<span id="L394" class="LineNr">394 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"incrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L395" class="LineNr">395 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L396" class="LineNr">396 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/013indirect_addressing.cc.html b/html/subx/013indirect_addressing.cc.html new file mode 100644 index 00000000..bbf7c550 --- /dev/null +++ b/html/subx/013indirect_addressing.cc.html @@ -0,0 +1,657 @@ +<!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 - subx/013indirect_addressing.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.Special { color: #c00000; } +.traceAbsent { color: #c00000; } +.SalientComment { color: #00ffff; } +.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; } +.traceContains { color: #008000; } +.Error { color: #ffffff; background-color: #ff6060; padding-bottom: 1px; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: operating on memory at the address provided by some register</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: we'll now start providing data in a separate segment</span> +<span id="L3" class="LineNr"> 3 </span> +<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32)</span> +<span id="L5" class="LineNr"> 5 </span><span class="Special">% Reg[EBX].i = 0x10;</span> +<span id="L6" class="LineNr"> 6 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L7" class="LineNr"> 7 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L9" class="LineNr"> 9 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">18</span> <span class="Comment"># add EBX to *EAX</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L11" class="LineNr"> 11 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L12" class="LineNr"> 12 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L13" class="LineNr"> 13 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L16" class="LineNr"> 16 </span> +<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End Mod Special-cases(addr)")</span> +<span id="L18" class="LineNr"> 18 </span><span class="Normal">case</span> <span class="Constant">0</span>: <span class="Comment">// indirect addressing</span> +<span id="L19" class="LineNr"> 19 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>rm<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L20" class="LineNr"> 20 </span> <span class="Normal">default</span>: <span class="Comment">// address in register</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << Reg[rm]<span class="Delimiter">.</span>u << <span class="Constant">" ("</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L22" class="LineNr"> 22 </span> addr = Reg[rm]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Comment">// End Mod 0 Special-cases(addr)</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Delimiter">}</span> +<span id="L26" class="LineNr"> 26 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L27" class="LineNr"> 27 </span> +<span id="L28" class="LineNr"> 28 </span><span class="Comment">//:</span> +<span id="L29" class="LineNr"> 29 </span> +<span id="L30" class="LineNr"> 30 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L31" class="LineNr"> 31 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"03"</span><span class="Delimiter">,</span> <span class="Constant">"add rm32 to r32"</span><span class="Delimiter">);</span> +<span id="L32" class="LineNr"> 32 </span> +<span id="L33" class="LineNr"> 33 </span><span class="Delimiter">:(scenario add_mem_at_r32_to_r32)</span> +<span id="L34" class="LineNr"> 34 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L35" class="LineNr"> 35 </span><span class="Special">% Reg[EBX].i = 0x10;</span> +<span id="L36" class="LineNr"> 36 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L37" class="LineNr"> 37 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L38" class="LineNr"> 38 </span> <span class="PreProc">0</span><span class="Constant">3</span> <span class="Constant">18</span> <span class="Comment"># add *EAX to EBX</span> +<span id="L39" class="LineNr"> 39 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L40" class="LineNr"> 40 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L41" class="LineNr"> 41 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L42" class="LineNr"> 42 </span><span class="traceContains">+run: add r/m32 to <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L43" class="LineNr"> 43 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L44" class="LineNr"> 44 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L45" class="LineNr"> 45 </span> +<span id="L46" class="LineNr"> 46 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L47" class="LineNr"> 47 </span><span class="Normal">case</span> <span class="Constant">0x03</span>: <span class="Delimiter">{</span> <span class="Comment">// add r/m32 to r32</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L50" class="LineNr"> 50 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"add r/m32 to "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L52" class="LineNr"> 52 </span> <a href='010vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L54" class="LineNr"> 54 </span><span class="Delimiter">}</span> +<span id="L55" class="LineNr"> 55 </span> +<span id="L56" class="LineNr"> 56 </span><span class="SalientComment">//:: subtract</span> +<span id="L57" class="LineNr"> 57 </span> +<span id="L58" class="LineNr"> 58 </span><span class="Delimiter">:(scenario subtract_r32_from_mem_at_r32)</span> +<span id="L59" class="LineNr"> 59 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L60" class="LineNr"> 60 </span><span class="Special">% Reg[EBX].i = 1;</span> +<span id="L61" class="LineNr"> 61 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L62" class="LineNr"> 62 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L63" class="LineNr"> 63 </span> <span class="Constant">29</span> <span class="Constant">18</span> <span class="Comment"># subtract EBX from *EAX</span> +<span id="L64" class="LineNr"> 64 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L65" class="LineNr"> 65 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L66" class="LineNr"> 66 </span>0a <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 10</span> +<span id="L67" class="LineNr"> 67 </span><span class="traceContains">+run: subtract <a href='010vm.cc.html#L16'>EBX</a> from r/m32</span> +<span id="L68" class="LineNr"> 68 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L69" class="LineNr"> 69 </span><span class="traceContains">+run: storing 0x00000009</span> +<span id="L70" class="LineNr"> 70 </span> +<span id="L71" class="LineNr"> 71 </span><span class="Comment">//:</span> +<span id="L72" class="LineNr"> 72 </span> +<span id="L73" class="LineNr"> 73 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L74" class="LineNr"> 74 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"2b"</span><span class="Delimiter">,</span> <span class="Constant">"subtract rm32 from r32"</span><span class="Delimiter">);</span> +<span id="L75" class="LineNr"> 75 </span> +<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">:(scenario subtract_mem_at_r32_from_r32)</span> +<span id="L77" class="LineNr"> 77 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L78" class="LineNr"> 78 </span><span class="Special">% Reg[EBX].i = 10;</span> +<span id="L79" class="LineNr"> 79 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L80" class="LineNr"> 80 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L81" class="LineNr"> 81 </span> 2b <span class="Constant">18</span> <span class="Comment"># subtract *EAX from EBX</span> +<span id="L82" class="LineNr"> 82 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L83" class="LineNr"> 83 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L84" class="LineNr"> 84 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L85" class="LineNr"> 85 </span><span class="traceContains">+run: subtract r/m32 from <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L86" class="LineNr"> 86 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L87" class="LineNr"> 87 </span><span class="traceContains">+run: storing 0x00000009</span> +<span id="L88" class="LineNr"> 88 </span> +<span id="L89" class="LineNr"> 89 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L90" class="LineNr"> 90 </span><span class="Normal">case</span> <span class="Constant">0x2b</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract r/m32 from r32</span> +<span id="L91" class="LineNr"> 91 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L93" class="LineNr"> 93 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract r/m32 from "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L94" class="LineNr"> 94 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L95" class="LineNr"> 95 </span> <a href='010vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Identifier">break</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="SalientComment">//:: and</span> +<span id="L100" class="LineNr">100 </span> +<span id="L101" class="LineNr">101 </span><span class="Delimiter">:(scenario and_r32_with_mem_at_r32)</span> +<span id="L102" class="LineNr">102 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L103" class="LineNr">103 </span><span class="Special">% Reg[EBX].i = 0xff;</span> +<span id="L104" class="LineNr">104 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L105" class="LineNr">105 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L106" class="LineNr">106 </span> <span class="Constant">21</span> <span class="Constant">18</span> <span class="Comment"># and EBX with *EAX</span> +<span id="L107" class="LineNr">107 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L108" class="LineNr">108 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L109" class="LineNr">109 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L110" class="LineNr">110 </span><span class="traceContains">+run: and <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L111" class="LineNr">111 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L112" class="LineNr">112 </span><span class="traceContains">+run: storing 0x0000000d</span> +<span id="L113" class="LineNr">113 </span> +<span id="L114" class="LineNr">114 </span><span class="Comment">//:</span> +<span id="L115" class="LineNr">115 </span> +<span id="L116" class="LineNr">116 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L117" class="LineNr">117 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"23"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise AND of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L118" class="LineNr">118 </span> +<span id="L119" class="LineNr">119 </span><span class="Delimiter">:(scenario and_mem_at_r32_with_r32)</span> +<span id="L120" class="LineNr">120 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L121" class="LineNr">121 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> +<span id="L122" class="LineNr">122 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L123" class="LineNr">123 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L124" class="LineNr">124 </span> <span class="Constant">23</span> <span class="Constant">18</span> <span class="Comment"># and *EAX with EBX</span> +<span id="L125" class="LineNr">125 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L126" class="LineNr">126 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L127" class="LineNr">127 </span>ff <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xff</span> +<span id="L128" class="LineNr">128 </span><span class="traceContains">+run: and r/m32 with <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L129" class="LineNr">129 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L130" class="LineNr">130 </span><span class="traceContains">+run: storing 0x0000000d</span> +<span id="L131" class="LineNr">131 </span> +<span id="L132" class="LineNr">132 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L133" class="LineNr">133 </span><span class="Normal">case</span> <span class="Constant">0x23</span>: <span class="Delimiter">{</span> <span class="Comment">// and r/m32 with r32</span> +<span id="L134" class="LineNr">134 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L135" class="LineNr">135 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L136" class="LineNr">136 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and r/m32 with "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L137" class="LineNr">137 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L138" class="LineNr">138 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> +<span id="L139" class="LineNr">139 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L140" class="LineNr">140 </span><span class="Delimiter">}</span> +<span id="L141" class="LineNr">141 </span> +<span id="L142" class="LineNr">142 </span><span class="SalientComment">//:: or</span> +<span id="L143" class="LineNr">143 </span> +<span id="L144" class="LineNr">144 </span><span class="Delimiter">:(scenario or_r32_with_mem_at_r32)</span> +<span id="L145" class="LineNr">145 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L146" class="LineNr">146 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> +<span id="L147" class="LineNr">147 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L148" class="LineNr">148 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L149" class="LineNr">149 </span> <span class="Error">09</span> <span class="Constant">18</span> <span class="Comment"># or EBX with *EAX</span> +<span id="L150" class="LineNr">150 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L151" class="LineNr">151 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L152" class="LineNr">152 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L153" class="LineNr">153 </span><span class="traceContains">+run: or <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L154" class="LineNr">154 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L155" class="LineNr">155 </span><span class="traceContains">+run: storing 0xaabbccdd</span> +<span id="L156" class="LineNr">156 </span> +<span id="L157" class="LineNr">157 </span><span class="Comment">//:</span> +<span id="L158" class="LineNr">158 </span> +<span id="L159" class="LineNr">159 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L160" class="LineNr">160 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"0b"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise OR of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L161" class="LineNr">161 </span> +<span id="L162" class="LineNr">162 </span><span class="Delimiter">:(scenario or_mem_at_r32_with_r32)</span> +<span id="L163" class="LineNr">163 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L164" class="LineNr">164 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> +<span id="L165" class="LineNr">165 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L166" class="LineNr">166 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L167" class="LineNr">167 </span> 0b <span class="Constant">18</span> <span class="Comment"># or *EAX with EBX</span> +<span id="L168" class="LineNr">168 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L169" class="LineNr">169 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L170" class="LineNr">170 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L171" class="LineNr">171 </span><span class="traceContains">+run: or r/m32 with <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L172" class="LineNr">172 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L173" class="LineNr">173 </span><span class="traceContains">+run: storing 0xaabbccdd</span> +<span id="L174" class="LineNr">174 </span> +<span id="L175" class="LineNr">175 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L176" class="LineNr">176 </span><span class="Normal">case</span> <span class="Constant">0x0b</span>: <span class="Delimiter">{</span> <span class="Comment">// or r/m32 with r32</span> +<span id="L177" class="LineNr">177 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L178" class="LineNr">178 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L179" class="LineNr">179 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or r/m32 with "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L180" class="LineNr">180 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L181" class="LineNr">181 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> +<span id="L182" class="LineNr">182 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L183" class="LineNr">183 </span><span class="Delimiter">}</span> +<span id="L184" class="LineNr">184 </span> +<span id="L185" class="LineNr">185 </span><span class="SalientComment">//:: xor</span> +<span id="L186" class="LineNr">186 </span> +<span id="L187" class="LineNr">187 </span><span class="Delimiter">:(scenario xor_r32_with_mem_at_r32)</span> +<span id="L188" class="LineNr">188 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L189" class="LineNr">189 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> +<span id="L190" class="LineNr">190 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L191" class="LineNr">191 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L192" class="LineNr">192 </span> <span class="Constant">31</span> <span class="Constant">18</span> <span class="Comment"># xor EBX with *EAX</span> +<span id="L193" class="LineNr">193 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L194" class="LineNr">194 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L195" class="LineNr">195 </span>0d 0c bb aa <span class="Comment"># 0xaabb0c0d</span> +<span id="L196" class="LineNr">196 </span><span class="traceContains">+run: xor <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L197" class="LineNr">197 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L198" class="LineNr">198 </span><span class="traceContains">+run: storing 0x0a0bccdd</span> +<span id="L199" class="LineNr">199 </span> +<span id="L200" class="LineNr">200 </span><span class="Comment">//:</span> +<span id="L201" class="LineNr">201 </span> +<span id="L202" class="LineNr">202 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L203" class="LineNr">203 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"33"</span><span class="Delimiter">,</span> <span class="Constant">"r32 = bitwise XOR of r32 with rm32"</span><span class="Delimiter">);</span> +<span id="L204" class="LineNr">204 </span> +<span id="L205" class="LineNr">205 </span><span class="Delimiter">:(scenario xor_mem_at_r32_with_r32)</span> +<span id="L206" class="LineNr">206 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L207" class="LineNr">207 </span><span class="Special">% Reg[EBX].i = 0xa0b0c0d0;</span> +<span id="L208" class="LineNr">208 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L209" class="LineNr">209 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L210" class="LineNr">210 </span> <span class="Constant">33</span> <span class="Constant">18</span> <span class="Comment"># xor *EAX with EBX</span> +<span id="L211" class="LineNr">211 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L212" class="LineNr">212 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L213" class="LineNr">213 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L214" class="LineNr">214 </span><span class="traceContains">+run: xor r/m32 with <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L215" class="LineNr">215 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L216" class="LineNr">216 </span><span class="traceContains">+run: storing 0xaabbccdd</span> +<span id="L217" class="LineNr">217 </span> +<span id="L218" class="LineNr">218 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L219" class="LineNr">219 </span><span class="Normal">case</span> <span class="Constant">0x33</span>: <span class="Delimiter">{</span> <span class="Comment">// xor r/m32 with r32</span> +<span id="L220" class="LineNr">220 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L221" class="LineNr">221 </span> <span class="Normal">uint8_t</span> arg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L222" class="LineNr">222 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor r/m32 with "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>arg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L223" class="LineNr">223 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* arg2 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L224" class="LineNr">224 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> Reg[arg1]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> *arg2<span class="Delimiter">);</span> +<span id="L225" class="LineNr">225 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L226" class="LineNr">226 </span><span class="Delimiter">}</span> +<span id="L227" class="LineNr">227 </span> +<span id="L228" class="LineNr">228 </span><span class="SalientComment">//:: not</span> +<span id="L229" class="LineNr">229 </span> +<span id="L230" class="LineNr">230 </span><span class="Delimiter">:(scenario not_r32_with_mem_at_r32)</span> +<span id="L231" class="LineNr">231 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L232" class="LineNr">232 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L233" class="LineNr">233 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L234" class="LineNr">234 </span> f7 <span class="PreProc">0</span><span class="Constant">3</span> <span class="Comment"># negate *EBX</span> +<span id="L235" class="LineNr">235 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 000 (unused) 011 (dest EBX)</span> +<span id="L236" class="LineNr">236 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L237" class="LineNr">237 </span>ff <span class="PreProc">0</span><span class="Constant">0</span> <span class="Constant">0f</span> <span class="Constant">0f</span> <span class="Comment"># 0x0f0f00ff</span> +<span id="L238" class="LineNr">238 </span><span class="traceContains">+run: 'not' of r/m32</span> +<span id="L239" class="LineNr">239 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L240" class="LineNr">240 </span><span class="traceContains">+run: storing 0xf0f0ff00</span> +<span id="L241" class="LineNr">241 </span> +<span id="L242" class="LineNr">242 </span><span class="SalientComment">//:: compare (cmp)</span> +<span id="L243" class="LineNr">243 </span> +<span id="L244" class="LineNr">244 </span><span class="Delimiter">:(scenario compare_mem_at_r32_with_r32_greater)</span> +<span id="L245" class="LineNr">245 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L246" class="LineNr">246 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c07;</span> +<span id="L247" class="LineNr">247 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L248" class="LineNr">248 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L249" class="LineNr">249 </span> <span class="Constant">39</span> <span class="Constant">18</span> <span class="Comment"># compare EBX with *EAX</span> +<span id="L250" class="LineNr">250 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L251" class="LineNr">251 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L252" class="LineNr">252 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L253" class="LineNr">253 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L254" class="LineNr">254 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L255" class="LineNr">255 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> +<span id="L256" class="LineNr">256 </span> +<span id="L257" class="LineNr">257 </span><span class="Delimiter">:(scenario compare_mem_at_r32_with_r32_lesser)</span> +<span id="L258" class="LineNr">258 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L259" class="LineNr">259 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> +<span id="L260" class="LineNr">260 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L261" class="LineNr">261 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L262" class="LineNr">262 </span> <span class="Constant">39</span> <span class="Constant">18</span> <span class="Comment"># compare EBX with *EAX</span> +<span id="L263" class="LineNr">263 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L264" class="LineNr">264 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L265" class="LineNr">265 </span><span class="PreProc">0</span><span class="Constant">7</span> 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L266" class="LineNr">266 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L267" class="LineNr">267 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L268" class="LineNr">268 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> +<span id="L269" class="LineNr">269 </span> +<span id="L270" class="LineNr">270 </span><span class="Delimiter">:(scenario compare_mem_at_r32_with_r32_equal)</span> +<span id="L271" class="LineNr">271 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L272" class="LineNr">272 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> +<span id="L273" class="LineNr">273 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L274" class="LineNr">274 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L275" class="LineNr">275 </span> <span class="Constant">39</span> <span class="Constant">18</span> <span class="Comment"># compare EBX with *EAX</span> +<span id="L276" class="LineNr">276 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L277" class="LineNr">277 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L278" class="LineNr">278 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L279" class="LineNr">279 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L16'>EBX</a> with r/m32</span> +<span id="L280" class="LineNr">280 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L281" class="LineNr">281 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> +<span id="L282" class="LineNr">282 </span> +<span id="L283" class="LineNr">283 </span><span class="Comment">//:</span> +<span id="L284" class="LineNr">284 </span> +<span id="L285" class="LineNr">285 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L286" class="LineNr">286 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"3b"</span><span class="Delimiter">,</span> <span class="Constant">"set SF if rm32 > r32"</span><span class="Delimiter">);</span> +<span id="L287" class="LineNr">287 </span> +<span id="L288" class="LineNr">288 </span><span class="Delimiter">:(scenario compare_r32_with_mem_at_r32_greater)</span> +<span id="L289" class="LineNr">289 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L290" class="LineNr">290 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> +<span id="L291" class="LineNr">291 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L292" class="LineNr">292 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L293" class="LineNr">293 </span> 3b <span class="Constant">18</span> <span class="Comment"># compare *EAX with EBX</span> +<span id="L294" class="LineNr">294 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L295" class="LineNr">295 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L296" class="LineNr">296 </span><span class="PreProc">0</span><span class="Constant">7</span> 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L297" class="LineNr">297 </span><span class="traceContains">+run: compare r/m32 with <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L298" class="LineNr">298 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L299" class="LineNr">299 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> +<span id="L300" class="LineNr">300 </span> +<span id="L301" class="LineNr">301 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L302" class="LineNr">302 </span><span class="Normal">case</span> <span class="Constant">0x3b</span>: <span class="Delimiter">{</span> <span class="Comment">// set SF if r32 < r/m32</span> +<span id="L303" class="LineNr">303 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L304" class="LineNr">304 </span> <span class="Normal">uint8_t</span> reg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L305" class="LineNr">305 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare r/m32 with "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L306" class="LineNr">306 </span> <span class="Normal">int32_t</span> arg1 = Reg[reg1]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> +<span id="L307" class="LineNr">307 </span> <span class="Normal">int32_t</span>* arg2 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L308" class="LineNr">308 </span> <span class="Normal">int32_t</span> tmp1 = arg1 - *arg2<span class="Delimiter">;</span> +<span id="L309" class="LineNr">309 </span> SF = <span class="Delimiter">(</span>tmp1 < <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L310" class="LineNr">310 </span> ZF = <span class="Delimiter">(</span>tmp1 == <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L311" class="LineNr">311 </span> <span class="Normal">int64_t</span> tmp2 = arg1 - *arg2<span class="Delimiter">;</span> +<span id="L312" class="LineNr">312 </span> <a href='010vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>tmp1 != tmp2<span class="Delimiter">);</span> +<span id="L313" class="LineNr">313 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010vm.cc.html#L59'>OF</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L314" class="LineNr">314 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L315" class="LineNr">315 </span><span class="Delimiter">}</span> +<span id="L316" class="LineNr">316 </span> +<span id="L317" class="LineNr">317 </span><span class="Delimiter">:(scenario compare_r32_with_mem_at_r32_lesser)</span> +<span id="L318" class="LineNr">318 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L319" class="LineNr">319 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c07;</span> +<span id="L320" class="LineNr">320 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L321" class="LineNr">321 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L322" class="LineNr">322 </span> 3b <span class="Constant">18</span> <span class="Comment"># compare *EAX with EBX</span> +<span id="L323" class="LineNr">323 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L324" class="LineNr">324 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L325" class="LineNr">325 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L326" class="LineNr">326 </span><span class="traceContains">+run: compare r/m32 with <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L327" class="LineNr">327 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L328" class="LineNr">328 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> +<span id="L329" class="LineNr">329 </span> +<span id="L330" class="LineNr">330 </span><span class="Delimiter">:(scenario compare_r32_with_mem_at_r32_equal)</span> +<span id="L331" class="LineNr">331 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L332" class="LineNr">332 </span><span class="Special">% Reg[EBX].i = 0x0a0b0c0d;</span> +<span id="L333" class="LineNr">333 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L334" class="LineNr">334 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L335" class="LineNr">335 </span> 3b <span class="Constant">18</span> <span class="Comment"># compare *EAX with EBX</span> +<span id="L336" class="LineNr">336 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L337" class="LineNr">337 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L338" class="LineNr">338 </span>0d 0c 0b 0a <span class="Comment"># 0x0a0b0c0d</span> +<span id="L339" class="LineNr">339 </span><span class="traceContains">+run: compare r/m32 with <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L340" class="LineNr">340 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L341" class="LineNr">341 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> +<span id="L342" class="LineNr">342 </span> +<span id="L343" class="LineNr">343 </span><span class="SalientComment">//:: copy (mov)</span> +<span id="L344" class="LineNr">344 </span> +<span id="L345" class="LineNr">345 </span><span class="Delimiter">:(scenario copy_r32_to_mem_at_r32)</span> +<span id="L346" class="LineNr">346 </span><span class="Special">% Reg[EBX].i = 0xaf;</span> +<span id="L347" class="LineNr">347 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L348" class="LineNr">348 </span>== <span class="Constant">0x1</span> +<span id="L349" class="LineNr">349 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L350" class="LineNr">350 </span> <span class="Constant">89</span> <span class="Constant">18</span> <span class="Comment"># copy EBX to *EAX</span> +<span id="L351" class="LineNr">351 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L352" class="LineNr">352 </span><span class="traceContains">+run: copy <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L353" class="LineNr">353 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L354" class="LineNr">354 </span><span class="traceContains">+run: storing 0x000000af</span> +<span id="L355" class="LineNr">355 </span> +<span id="L356" class="LineNr">356 </span><span class="Comment">//:</span> +<span id="L357" class="LineNr">357 </span> +<span id="L358" class="LineNr">358 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L359" class="LineNr">359 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"8b"</span><span class="Delimiter">,</span> <span class="Constant">"copy rm32 to r32"</span><span class="Delimiter">);</span> +<span id="L360" class="LineNr">360 </span> +<span id="L361" class="LineNr">361 </span><span class="Delimiter">:(scenario copy_mem_at_r32_to_r32)</span> +<span id="L362" class="LineNr">362 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L363" class="LineNr">363 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L364" class="LineNr">364 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L365" class="LineNr">365 </span> 8b <span class="Constant">18</span> <span class="Comment"># copy *EAX to EBX</span> +<span id="L366" class="LineNr">366 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EAX) 000 (dest EAX)</span> +<span id="L367" class="LineNr">367 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L368" class="LineNr">368 </span>af <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xaf</span> +<span id="L369" class="LineNr">369 </span><span class="traceContains">+run: copy r/m32 to <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L370" class="LineNr">370 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L371" class="LineNr">371 </span><span class="traceContains">+run: storing 0x000000af</span> +<span id="L372" class="LineNr">372 </span> +<span id="L373" class="LineNr">373 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L374" class="LineNr">374 </span><span class="Normal">case</span> <span class="Constant">0x8b</span>: <span class="Delimiter">{</span> <span class="Comment">// copy r32 to r/m32</span> +<span id="L375" class="LineNr">375 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L376" class="LineNr">376 </span> <span class="Normal">uint8_t</span> reg1 = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L377" class="LineNr">377 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy r/m32 to "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L378" class="LineNr">378 </span> <span class="Normal">int32_t</span>* arg2 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L379" class="LineNr">379 </span> Reg[reg1]<span class="Delimiter">.</span>i = *arg2<span class="Delimiter">;</span> +<span id="L380" class="LineNr">380 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"storing 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << *arg2 << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L381" class="LineNr">381 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L382" class="LineNr">382 </span><span class="Delimiter">}</span> +<span id="L383" class="LineNr">383 </span> +<span id="L384" class="LineNr">384 </span><span class="SalientComment">//:: jump</span> +<span id="L385" class="LineNr">385 </span> +<span id="L386" class="LineNr">386 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L387" class="LineNr">387 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"ff"</span><span class="Delimiter">,</span> <span class="Constant">"jump/push/call rm32 based on subop"</span><span class="Delimiter">);</span> +<span id="L388" class="LineNr">388 </span> +<span id="L389" class="LineNr">389 </span><span class="Delimiter">:(scenario jump_mem_at_r32)</span> +<span id="L390" class="LineNr">390 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L391" class="LineNr">391 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L392" class="LineNr">392 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L393" class="LineNr">393 </span> ff <span class="Constant">20</span> <span class="Comment"># jump to *EAX</span> +<span id="L394" class="LineNr">394 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 100 (jump to r/m32) 000 (src EAX)</span> +<span id="L395" class="LineNr">395 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L396" class="LineNr">396 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L397" class="LineNr">397 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L398" class="LineNr">398 </span><span class="Error">08</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 8</span> +<span id="L399" class="LineNr">399 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L400" class="LineNr">400 </span><span class="traceContains">+run: jump to r/m32</span> +<span id="L401" class="LineNr">401 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L402" class="LineNr">402 </span><span class="traceContains">+run: jumping to 0x00000008</span> +<span id="L403" class="LineNr">403 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L404" class="LineNr">404 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L405" class="LineNr">405 </span> +<span id="L406" class="LineNr">406 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L407" class="LineNr">407 </span><span class="Normal">case</span> <span class="Constant">0xff</span>: <span class="Delimiter">{</span> +<span id="L408" class="LineNr">408 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L409" class="LineNr">409 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span class="Comment">// middle 3 'reg opcode' bits</span> +<span id="L410" class="LineNr">410 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L411" class="LineNr">411 </span> <span class="Normal">case</span> <span class="Constant">4</span>: <span class="Delimiter">{</span> <span class="Comment">// jump to r/m32</span> +<span id="L412" class="LineNr">412 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump to r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L413" class="LineNr">413 </span> <span class="Normal">int32_t</span>* arg2 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L414" class="LineNr">414 </span> <a href='010vm.cc.html#L29'>EIP</a> = *arg2<span class="Delimiter">;</span> +<span id="L415" class="LineNr">415 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << <a href='010vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L416" class="LineNr">416 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L417" class="LineNr">417 </span> <span class="Delimiter">}</span> +<span id="L418" class="LineNr">418 </span> <span class="Comment">// End Op ff Subops</span> +<span id="L419" class="LineNr">419 </span> <span class="Delimiter">}</span> +<span id="L420" class="LineNr">420 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L421" class="LineNr">421 </span><span class="Delimiter">}</span> +<span id="L422" class="LineNr">422 </span> +<span id="L423" class="LineNr">423 </span><span class="SalientComment">//:: push</span> +<span id="L424" class="LineNr">424 </span> +<span id="L425" class="LineNr">425 </span><span class="Delimiter">:(scenario push_mem_at_r32)</span> +<span id="L426" class="LineNr">426 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L427" class="LineNr">427 </span><span class="Special">% Reg[ESP].u = 0x14;</span> +<span id="L428" class="LineNr">428 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L429" class="LineNr">429 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L430" class="LineNr">430 </span> ff <span class="Constant">30</span> <span class="Comment"># push *EAX to stack</span> +<span id="L431" class="LineNr">431 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 110 (push r/m32) 000 (src EAX)</span> +<span id="L432" class="LineNr">432 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L433" class="LineNr">433 </span>af <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xaf</span> +<span id="L434" class="LineNr">434 </span><span class="traceContains">+run: <a href='012direct_addressing.cc.html#L344'>push</a> r/m32</span> +<span id="L435" class="LineNr">435 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L436" class="LineNr">436 </span><span class="traceContains">+run: decrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x00000010</span> +<span id="L437" class="LineNr">437 </span><span class="traceContains">+run: pushing value 0x000000af</span> +<span id="L438" class="LineNr">438 </span> +<span id="L439" class="LineNr">439 </span><span class="Delimiter">:(before "End Op ff Subops")</span> +<span id="L440" class="LineNr">440 </span><span class="Normal">case</span> <span class="Constant">6</span>: <span class="Delimiter">{</span> <span class="Comment">// push r/m32 to stack</span> +<span id="L441" class="LineNr">441 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L442" class="LineNr">442 </span> <span class="Normal">const</span> <span class="Normal">int32_t</span>* val = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L443" class="LineNr">443 </span> <a href='012direct_addressing.cc.html#L344'>push</a><span class="Delimiter">(</span>*val<span class="Delimiter">);</span> +<span id="L444" class="LineNr">444 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L445" class="LineNr">445 </span><span class="Delimiter">}</span> +<span id="L446" class="LineNr">446 </span> +<span id="L447" class="LineNr">447 </span><span class="SalientComment">//:: pop</span> +<span id="L448" class="LineNr">448 </span> +<span id="L449" class="LineNr">449 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L450" class="LineNr">450 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">"pop top of stack to rm32"</span><span class="Delimiter">);</span> +<span id="L451" class="LineNr">451 </span> +<span id="L452" class="LineNr">452 </span><span class="Delimiter">:(scenario pop_mem_at_r32)</span> +<span id="L453" class="LineNr">453 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L454" class="LineNr">454 </span><span class="Special">% Reg[ESP].u = 0x10;</span> +<span id="L455" class="LineNr">455 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L456" class="LineNr">456 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L457" class="LineNr">457 </span> <span class="Constant">8f</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># pop stack into *EAX</span> +<span id="L458" class="LineNr">458 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 000 (pop r/m32) 000 (dest EAX)</span> +<span id="L459" class="LineNr">459 </span>== <span class="Constant">0x10</span> <span class="Comment"># data segment</span> +<span id="L460" class="LineNr">460 </span><span class="Constant">30</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0x30</span> +<span id="L461" class="LineNr">461 </span><span class="traceContains">+run: <a href='012direct_addressing.cc.html#L390'>pop</a> into r/m32</span> +<span id="L462" class="LineNr">462 </span><span class="traceContains">+run: effective address is 0x60 (EAX)</span> +<span id="L463" class="LineNr">463 </span><span class="traceContains">+run: popping value 0x00000030</span> +<span id="L464" class="LineNr">464 </span><span class="traceContains">+run: incrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x00000014</span> +<span id="L465" class="LineNr">465 </span> +<span id="L466" class="LineNr">466 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L467" class="LineNr">467 </span><span class="Normal">case</span> <span class="Constant">0x8f</span>: <span class="Delimiter">{</span> <span class="Comment">// pop stack into r/m32</span> +<span id="L468" class="LineNr">468 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L469" class="LineNr">469 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L470" class="LineNr">470 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L471" class="LineNr">471 </span> <span class="Normal">case</span> <span class="Constant">0</span>: <span class="Delimiter">{</span> +<span id="L472" class="LineNr">472 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"pop into r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L473" class="LineNr">473 </span> <span class="Normal">int32_t</span>* dest = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L474" class="LineNr">474 </span> *dest = <a href='012direct_addressing.cc.html#L390'>pop</a><span class="Delimiter">();</span> +<span id="L475" class="LineNr">475 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L476" class="LineNr">476 </span> <span class="Delimiter">}</span> +<span id="L477" class="LineNr">477 </span> <span class="Delimiter">}</span> +<span id="L478" class="LineNr">478 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L479" class="LineNr">479 </span><span class="Delimiter">}</span> +<span id="L480" class="LineNr">480 </span> +<span id="L481" class="LineNr">481 </span><span class="SalientComment">//:: special-case for loading address from disp32 rather than register</span> +<span id="L482" class="LineNr">482 </span> +<span id="L483" class="LineNr">483 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_displacement)</span> +<span id="L484" class="LineNr">484 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L485" class="LineNr">485 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L486" class="LineNr">486 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L487" class="LineNr">487 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1d <span class="Constant">60</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *0x60</span> +<span id="L488" class="LineNr">488 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 101 (dest in disp32)</span> +<span id="L489" class="LineNr">489 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L490" class="LineNr">490 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L491" class="LineNr">491 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L492" class="LineNr">492 </span><span class="traceContains">+run: effective address is 0x60 (disp32)</span> +<span id="L493" class="LineNr">493 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L494" class="LineNr">494 </span> +<span id="L495" class="LineNr">495 </span><span class="Delimiter">:(before "End Mod 0 Special-cases(addr)")</span> +<span id="L496" class="LineNr">496 </span><span class="Normal">case</span> <span class="Constant">5</span>: <span class="Comment">// exception: mod 0b00 rm 0b101 => incoming disp32</span> +<span id="L497" class="LineNr">497 </span> addr = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L498" class="LineNr">498 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (disp32)"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L499" class="LineNr">499 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L500" class="LineNr">500 </span> +<span id="L501" class="LineNr">501 </span><span class="Comment">//:</span> +<span id="L502" class="LineNr">502 </span> +<span id="L503" class="LineNr">503 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_plus_disp8)</span> +<span id="L504" class="LineNr">504 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L505" class="LineNr">505 </span><span class="Special">% Reg[EAX].i = 0x5e; // dest</span> +<span id="L506" class="LineNr">506 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L507" class="LineNr">507 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L508" class="LineNr">508 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">58</span> <span class="PreProc">0</span><span class="Constant">2</span> <span class="Comment"># add EBX to *(EAX+2)</span> +<span id="L509" class="LineNr">509 </span><span class="Comment"># ModR/M in binary: 01 (indirect+disp8 mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L510" class="LineNr">510 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L511" class="LineNr">511 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L512" class="LineNr">512 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L513" class="LineNr">513 </span><span class="traceContains">+run: effective address is initially 0x5e (EAX)</span> +<span id="L514" class="LineNr">514 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp8)</span> +<span id="L515" class="LineNr">515 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L516" class="LineNr">516 </span> +<span id="L517" class="LineNr">517 </span><span class="Delimiter">:(before "End Mod Special-cases(addr)")</span> +<span id="L518" class="LineNr">518 </span><span class="Normal">case</span> <span class="Constant">1</span>: <span class="Comment">// indirect + disp8 addressing</span> +<span id="L519" class="LineNr">519 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>rm<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L520" class="LineNr">520 </span> <span class="Normal">default</span>: +<span id="L521" class="LineNr">521 </span> addr = Reg[rm]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> +<span id="L522" class="LineNr">522 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L523" class="LineNr">523 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L524" class="LineNr">524 </span> <span class="Comment">// End Mod 1 Special-cases(addr)</span> +<span id="L525" class="LineNr">525 </span> <span class="Delimiter">}</span> +<span id="L526" class="LineNr">526 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>addr > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L527" class="LineNr">527 </span> addr += <span class="Normal">static_cast</span><<span class="Normal">int8_t</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">());</span> +<span id="L528" class="LineNr">528 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding disp8)"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L529" class="LineNr">529 </span> <span class="Delimiter">}</span> +<span id="L530" class="LineNr">530 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L531" class="LineNr">531 </span> +<span id="L532" class="LineNr">532 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_plus_negative_disp8)</span> +<span id="L533" class="LineNr">533 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L534" class="LineNr">534 </span><span class="Special">% Reg[EAX].i = 0x61; // dest</span> +<span id="L535" class="LineNr">535 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L536" class="LineNr">536 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L537" class="LineNr">537 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">58</span> ff <span class="Comment"># add EBX to *(EAX-1)</span> +<span id="L538" class="LineNr">538 </span><span class="Comment"># ModR/M in binary: 01 (indirect+disp8 mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L539" class="LineNr">539 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L540" class="LineNr">540 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L541" class="LineNr">541 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L542" class="LineNr">542 </span><span class="traceContains">+run: effective address is initially 0x61 (EAX)</span> +<span id="L543" class="LineNr">543 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp8)</span> +<span id="L544" class="LineNr">544 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L545" class="LineNr">545 </span> +<span id="L546" class="LineNr">546 </span><span class="Comment">//:</span> +<span id="L547" class="LineNr">547 </span> +<span id="L548" class="LineNr">548 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_plus_disp32)</span> +<span id="L549" class="LineNr">549 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L550" class="LineNr">550 </span><span class="Special">% Reg[EAX].i = 0x5e; // dest</span> +<span id="L551" class="LineNr">551 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L552" class="LineNr">552 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L553" class="LineNr">553 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">98</span> <span class="PreProc">0</span><span class="Constant">2</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *(EAX+2)</span> +<span id="L554" class="LineNr">554 </span><span class="Comment"># ModR/M in binary: 10 (indirect+disp32 mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L555" class="LineNr">555 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L556" class="LineNr">556 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L557" class="LineNr">557 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L558" class="LineNr">558 </span><span class="traceContains">+run: effective address is initially 0x5e (EAX)</span> +<span id="L559" class="LineNr">559 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp32)</span> +<span id="L560" class="LineNr">560 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L561" class="LineNr">561 </span> +<span id="L562" class="LineNr">562 </span><span class="Delimiter">:(before "End Mod Special-cases(addr)")</span> +<span id="L563" class="LineNr">563 </span><span class="Normal">case</span> <span class="Constant">2</span>: <span class="Comment">// indirect + disp32 addressing</span> +<span id="L564" class="LineNr">564 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>rm<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L565" class="LineNr">565 </span> <span class="Normal">default</span>: +<span id="L566" class="LineNr">566 </span> addr = Reg[rm]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> +<span id="L567" class="LineNr">567 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>rm<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L568" class="LineNr">568 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L569" class="LineNr">569 </span> <span class="Comment">// End Mod 2 Special-cases(addr)</span> +<span id="L570" class="LineNr">570 </span> <span class="Delimiter">}</span> +<span id="L571" class="LineNr">571 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>addr > <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L572" class="LineNr">572 </span> addr += <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L573" class="LineNr">573 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding disp32)"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L574" class="LineNr">574 </span> <span class="Delimiter">}</span> +<span id="L575" class="LineNr">575 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L576" class="LineNr">576 </span> +<span id="L577" class="LineNr">577 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_plus_negative_disp32)</span> +<span id="L578" class="LineNr">578 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L579" class="LineNr">579 </span><span class="Special">% Reg[EAX].i = 0x61; // dest</span> +<span id="L580" class="LineNr">580 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L581" class="LineNr">581 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L582" class="LineNr">582 </span> <span class="PreProc">0</span><span class="Constant">1</span> <span class="Constant">98</span> ff ff ff ff <span class="Comment"># add EBX to *(EAX-1)</span> +<span id="L583" class="LineNr">583 </span><span class="Comment"># ModR/M in binary: 10 (indirect+disp32 mode) 011 (src EBX) 000 (dest EAX)</span> +<span id="L584" class="LineNr">584 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L585" class="LineNr">585 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L586" class="LineNr">586 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L587" class="LineNr">587 </span><span class="traceContains">+run: effective address is initially 0x61 (EAX)</span> +<span id="L588" class="LineNr">588 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp32)</span> +<span id="L589" class="LineNr">589 </span><span class="traceContains">+run: storing 0x00000011</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/014immediate_addressing.cc.html b/html/subx/014immediate_addressing.cc.html new file mode 100644 index 00000000..e4119c28 --- /dev/null +++ b/html/subx/014immediate_addressing.cc.html @@ -0,0 +1,544 @@ +<!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 - subx/014immediate_addressing.cc</title> +<meta name="Generator" content="Vim/7.4"> +<meta 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#008000; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: instructions that (immediately) contain an argument to act with</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"81"</span><span class="Delimiter">,</span> <span class="Constant">"combine rm32 with <a href='011run.cc.html#L253'>imm32</a> based on subop"</span><span class="Delimiter">);</span> +<span id="L5" class="LineNr"> 5 </span> +<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario add_imm32_to_r32)</span> +<span id="L7" class="LineNr"> 7 </span><span class="Special">% Reg[EBX].i = 1;</span> +<span id="L8" class="LineNr"> 8 </span>== <span class="Constant">0x1</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L10" class="LineNr"> 10 </span> <span class="Constant">81</span> c3 0a 0b 0c 0d <span class="Comment"># add 0x0d0c0b0a to EBX</span> +<span id="L11" class="LineNr"> 11 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 000 (add imm32) 011 (dest EBX)</span> +<span id="L12" class="LineNr"> 12 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L13" class="LineNr"> 13 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: subop add</span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: storing 0x0d0c0b0b</span> +<span id="L16" class="LineNr"> 16 </span> +<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L18" class="LineNr"> 18 </span><span class="Normal">case</span> <span class="Constant">0x81</span>: <span class="Delimiter">{</span> <span class="Comment">// combine imm32 with r/m32</span> +<span id="L19" class="LineNr"> 19 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L20" class="LineNr"> 20 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L21" class="LineNr"> 21 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"combine <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <span class="Constant">" with r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L22" class="LineNr"> 22 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Normal">uint8_t</span> subop = <span class="Delimiter">(</span>modrm>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> <span class="Comment">// middle 3 'reg opcode' bits</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Normal">switch</span> <span class="Delimiter">(</span>subop<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Normal">case</span> <span class="Constant">0</span>: +<span id="L26" class="LineNr"> 26 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop add"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L27" class="LineNr"> 27 </span> <a href='010vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>+<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<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="Comment">// End Op 81 Subops</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Normal">default</span>: +<span id="L31" class="LineNr"> 31 </span> cerr << <span class="Constant">"unrecognized sub-opcode after 81: "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>subop<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L32" class="LineNr"> 32 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L33" class="LineNr"> 33 </span> <span class="Delimiter">}</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L35" class="LineNr"> 35 </span><span class="Delimiter">}</span> +<span id="L36" class="LineNr"> 36 </span> +<span id="L37" class="LineNr"> 37 </span><span class="Comment">//:</span> +<span id="L38" class="LineNr"> 38 </span> +<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">:(scenario add_imm32_to_mem_at_r32)</span> +<span id="L40" class="LineNr"> 40 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L41" class="LineNr"> 41 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> +<span id="L42" class="LineNr"> 42 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Constant">81</span> <span class="PreProc">0</span><span class="Constant">3</span> 0a 0b 0c 0d <span class="Comment"># add 0x0d0c0b0a to *EBX</span> +<span id="L44" class="LineNr"> 44 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 000 (add imm32) 011 (dest EBX)</span> +<span id="L45" class="LineNr"> 45 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L46" class="LineNr"> 46 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L47" class="LineNr"> 47 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L48" class="LineNr"> 48 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L49" class="LineNr"> 49 </span><span class="traceContains">+run: subop add</span> +<span id="L50" class="LineNr"> 50 </span><span class="traceContains">+run: storing 0x0d0c0b0b</span> +<span id="L51" class="LineNr"> 51 </span> +<span id="L52" class="LineNr"> 52 </span><span class="SalientComment">//:: subtract</span> +<span id="L53" class="LineNr"> 53 </span> +<span id="L54" class="LineNr"> 54 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L55" class="LineNr"> 55 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"2d"</span><span class="Delimiter">,</span> <span class="Constant">"subtract <a href='011run.cc.html#L253'>imm32</a> from R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L56" class="LineNr"> 56 </span> +<span id="L57" class="LineNr"> 57 </span><span class="Delimiter">:(scenario subtract_imm32_from_eax)</span> +<span id="L58" class="LineNr"> 58 </span><span class="Special">% Reg[EAX].i = 0x0d0c0baa;</span> +<span id="L59" class="LineNr"> 59 </span>== <span class="Constant">0x1</span> +<span id="L60" class="LineNr"> 60 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L61" class="LineNr"> 61 </span> 2d 0a 0b 0c 0d <span class="Comment"># subtract 0x0d0c0b0a from EAX</span> +<span id="L62" class="LineNr"> 62 </span><span class="traceContains">+run: subtract <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a from <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L63" class="LineNr"> 63 </span><span class="traceContains">+run: storing 0x000000a0</span> +<span id="L64" class="LineNr"> 64 </span> +<span id="L65" class="LineNr"> 65 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L66" class="LineNr"> 66 </span><span class="Normal">case</span> <span class="Constant">0x2d</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract imm32 from EAX</span> +<span id="L67" class="LineNr"> 67 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L68" class="LineNr"> 68 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subtract <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <span class="Constant">" from EAX"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L69" class="LineNr"> 69 </span> <a href='010vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Identifier">break</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="Comment">//:</span> +<span id="L74" class="LineNr"> 74 </span> +<span id="L75" class="LineNr"> 75 </span><span class="Delimiter">:(scenario subtract_imm32_from_mem_at_r32)</span> +<span id="L76" class="LineNr"> 76 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L77" class="LineNr"> 77 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> +<span id="L78" class="LineNr"> 78 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L79" class="LineNr"> 79 </span> <span class="Constant">81</span> 2b <span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># subtract 1 from *EBX</span> +<span id="L80" class="LineNr"> 80 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 101 (subtract imm32) 011 (dest EBX)</span> +<span id="L81" class="LineNr"> 81 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L82" class="LineNr"> 82 </span>0a <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 10</span> +<span id="L83" class="LineNr"> 83 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x00000001 with r/m32</span> +<span id="L84" class="LineNr"> 84 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L85" class="LineNr"> 85 </span><span class="traceContains">+run: subop subtract</span> +<span id="L86" class="LineNr"> 86 </span><span class="traceContains">+run: storing 0x00000009</span> +<span id="L87" class="LineNr"> 87 </span> +<span id="L88" class="LineNr"> 88 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> +<span id="L89" class="LineNr"> 89 </span><span class="Normal">case</span> <span class="Constant">5</span>: <span class="Delimiter">{</span> +<span id="L90" class="LineNr"> 90 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop subtract"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L91" class="LineNr"> 91 </span> <a href='010vm.cc.html#L69'>BINARY_ARITHMETIC_OP</a><span class="Delimiter">(</span>-<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">}</span> +<span id="L94" class="LineNr"> 94 </span> +<span id="L95" class="LineNr"> 95 </span><span class="Comment">//:</span> +<span id="L96" class="LineNr"> 96 </span> +<span id="L97" class="LineNr"> 97 </span><span class="Delimiter">:(scenario subtract_imm32_from_r32)</span> +<span id="L98" class="LineNr"> 98 </span><span class="Special">% Reg[EBX].i = 10;</span> +<span id="L99" class="LineNr"> 99 </span>== <span class="Constant">0x1</span> +<span id="L100" class="LineNr">100 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L101" class="LineNr">101 </span> <span class="Constant">81</span> eb <span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># subtract 1 from EBX</span> +<span id="L102" class="LineNr">102 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 101 (subtract imm32) 011 (dest EBX)</span> +<span id="L103" class="LineNr">103 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x00000001 with r/m32</span> +<span id="L104" class="LineNr">104 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L105" class="LineNr">105 </span><span class="traceContains">+run: subop subtract</span> +<span id="L106" class="LineNr">106 </span><span class="traceContains">+run: storing 0x00000009</span> +<span id="L107" class="LineNr">107 </span> +<span id="L108" class="LineNr">108 </span><span class="SalientComment">//:: and</span> +<span id="L109" class="LineNr">109 </span> +<span id="L110" class="LineNr">110 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L111" class="LineNr">111 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"25"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise AND of <a href='011run.cc.html#L253'>imm32</a> with R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L112" class="LineNr">112 </span> +<span id="L113" class="LineNr">113 </span><span class="Delimiter">:(scenario and_imm32_with_eax)</span> +<span id="L114" class="LineNr">114 </span><span class="Special">% Reg[EAX].i = 0xff;</span> +<span id="L115" class="LineNr">115 </span>== <span class="Constant">0x1</span> +<span id="L116" class="LineNr">116 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L117" class="LineNr">117 </span> <span class="Constant">25</span> 0a 0b 0c 0d <span class="Comment"># and 0x0d0c0b0a with EAX</span> +<span id="L118" class="LineNr">118 </span><span class="traceContains">+run: and <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L119" class="LineNr">119 </span><span class="traceContains">+run: storing 0x0000000a</span> +<span id="L120" class="LineNr">120 </span> +<span id="L121" class="LineNr">121 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L122" class="LineNr">122 </span><span class="Normal">case</span> <span class="Constant">0x25</span>: <span class="Delimiter">{</span> <span class="Comment">// and imm32 with EAX</span> +<span id="L123" class="LineNr">123 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L124" class="LineNr">124 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"and <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L125" class="LineNr">125 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L126" class="LineNr">126 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L127" class="LineNr">127 </span><span class="Delimiter">}</span> +<span id="L128" class="LineNr">128 </span> +<span id="L129" class="LineNr">129 </span><span class="Comment">//:</span> +<span id="L130" class="LineNr">130 </span> +<span id="L131" class="LineNr">131 </span><span class="Delimiter">:(scenario and_imm32_with_mem_at_r32)</span> +<span id="L132" class="LineNr">132 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L133" class="LineNr">133 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> +<span id="L134" class="LineNr">134 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L135" class="LineNr">135 </span> <span class="Constant">81</span> <span class="Constant">23</span> 0a 0b 0c 0d <span class="Comment"># and 0x0d0c0b0a with *EBX</span> +<span id="L136" class="LineNr">136 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 100 (and imm32) 011 (dest EBX)</span> +<span id="L137" class="LineNr">137 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L138" class="LineNr">138 </span>ff <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xff</span> +<span id="L139" class="LineNr">139 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L140" class="LineNr">140 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L141" class="LineNr">141 </span><span class="traceContains">+run: subop and</span> +<span id="L142" class="LineNr">142 </span><span class="traceContains">+run: storing 0x0000000a</span> +<span id="L143" class="LineNr">143 </span> +<span id="L144" class="LineNr">144 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> +<span id="L145" class="LineNr">145 </span><span class="Normal">case</span> <span class="Constant">4</span>: <span class="Delimiter">{</span> +<span id="L146" class="LineNr">146 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop and"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L147" class="LineNr">147 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>&<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L148" class="LineNr">148 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L149" class="LineNr">149 </span><span class="Delimiter">}</span> +<span id="L150" class="LineNr">150 </span> +<span id="L151" class="LineNr">151 </span><span class="Comment">//:</span> +<span id="L152" class="LineNr">152 </span> +<span id="L153" class="LineNr">153 </span><span class="Delimiter">:(scenario and_imm32_with_r32)</span> +<span id="L154" class="LineNr">154 </span><span class="Special">% Reg[EBX].i = 0xff;</span> +<span id="L155" class="LineNr">155 </span>== <span class="Constant">0x1</span> +<span id="L156" class="LineNr">156 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L157" class="LineNr">157 </span> <span class="Constant">81</span> e3 0a 0b 0c 0d <span class="Comment"># and 0x0d0c0b0a with EBX</span> +<span id="L158" class="LineNr">158 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 100 (and imm32) 011 (dest EBX)</span> +<span id="L159" class="LineNr">159 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L160" class="LineNr">160 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L161" class="LineNr">161 </span><span class="traceContains">+run: subop and</span> +<span id="L162" class="LineNr">162 </span><span class="traceContains">+run: storing 0x0000000a</span> +<span id="L163" class="LineNr">163 </span> +<span id="L164" class="LineNr">164 </span><span class="SalientComment">//:: or</span> +<span id="L165" class="LineNr">165 </span> +<span id="L166" class="LineNr">166 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L167" class="LineNr">167 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"0d"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise OR of <a href='011run.cc.html#L253'>imm32</a> with R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L168" class="LineNr">168 </span> +<span id="L169" class="LineNr">169 </span><span class="Delimiter">:(scenario or_imm32_with_eax)</span> +<span id="L170" class="LineNr">170 </span><span class="Special">% Reg[EAX].i = 0xd0c0b0a0;</span> +<span id="L171" class="LineNr">171 </span>== <span class="Constant">0x1</span> +<span id="L172" class="LineNr">172 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L173" class="LineNr">173 </span> 0d 0a 0b 0c 0d <span class="Comment"># or 0x0d0c0b0a with EAX</span> +<span id="L174" class="LineNr">174 </span><span class="traceContains">+run: or <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L175" class="LineNr">175 </span><span class="traceContains">+run: storing 0xddccbbaa</span> +<span id="L176" class="LineNr">176 </span> +<span id="L177" class="LineNr">177 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L178" class="LineNr">178 </span><span class="Normal">case</span> <span class="Constant">0x0d</span>: <span class="Delimiter">{</span> <span class="Comment">// or imm32 with EAX</span> +<span id="L179" class="LineNr">179 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L180" class="LineNr">180 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"or <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L181" class="LineNr">181 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L182" class="LineNr">182 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L183" class="LineNr">183 </span><span class="Delimiter">}</span> +<span id="L184" class="LineNr">184 </span> +<span id="L185" class="LineNr">185 </span><span class="Comment">//:</span> +<span id="L186" class="LineNr">186 </span> +<span id="L187" class="LineNr">187 </span><span class="Delimiter">:(scenario or_imm32_with_mem_at_r32)</span> +<span id="L188" class="LineNr">188 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L189" class="LineNr">189 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> +<span id="L190" class="LineNr">190 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L191" class="LineNr">191 </span> <span class="Constant">81</span> 0b 0a 0b 0c 0d <span class="Comment"># or 0x0d0c0b0a with *EBX</span> +<span id="L192" class="LineNr">192 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 001 (or imm32) 011 (dest EBX)</span> +<span id="L193" class="LineNr">193 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L194" class="LineNr">194 </span>a0 b0 c0 d0 <span class="Comment"># 0xd0c0b0a0</span> +<span id="L195" class="LineNr">195 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L196" class="LineNr">196 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L197" class="LineNr">197 </span><span class="traceContains">+run: subop or</span> +<span id="L198" class="LineNr">198 </span><span class="traceContains">+run: storing 0xddccbbaa</span> +<span id="L199" class="LineNr">199 </span> +<span id="L200" class="LineNr">200 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> +<span id="L201" class="LineNr">201 </span><span class="Normal">case</span> <span class="Constant">1</span>: <span class="Delimiter">{</span> +<span id="L202" class="LineNr">202 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop or"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L203" class="LineNr">203 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>|<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L204" class="LineNr">204 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L205" class="LineNr">205 </span><span class="Delimiter">}</span> +<span id="L206" class="LineNr">206 </span> +<span id="L207" class="LineNr">207 </span><span class="Delimiter">:(scenario or_imm32_with_r32)</span> +<span id="L208" class="LineNr">208 </span><span class="Special">% Reg[EBX].i = 0xd0c0b0a0;</span> +<span id="L209" class="LineNr">209 </span>== <span class="Constant">0x1</span> +<span id="L210" class="LineNr">210 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L211" class="LineNr">211 </span> <span class="Constant">81</span> cb 0a 0b 0c 0d <span class="Comment"># or 0x0d0c0b0a with EBX</span> +<span id="L212" class="LineNr">212 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 001 (or imm32) 011 (dest EBX)</span> +<span id="L213" class="LineNr">213 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L214" class="LineNr">214 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L215" class="LineNr">215 </span><span class="traceContains">+run: subop or</span> +<span id="L216" class="LineNr">216 </span><span class="traceContains">+run: storing 0xddccbbaa</span> +<span id="L217" class="LineNr">217 </span> +<span id="L218" class="LineNr">218 </span><span class="SalientComment">//:: xor</span> +<span id="L219" class="LineNr">219 </span> +<span id="L220" class="LineNr">220 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L221" class="LineNr">221 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"35"</span><span class="Delimiter">,</span> <span class="Constant">"R0 = bitwise XOR of <a href='011run.cc.html#L253'>imm32</a> with R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L222" class="LineNr">222 </span> +<span id="L223" class="LineNr">223 </span><span class="Delimiter">:(scenario xor_imm32_with_eax)</span> +<span id="L224" class="LineNr">224 </span><span class="Special">% Reg[EAX].i = 0xddccb0a0;</span> +<span id="L225" class="LineNr">225 </span>== <span class="Constant">0x1</span> +<span id="L226" class="LineNr">226 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L227" class="LineNr">227 </span> <span class="Constant">35</span> 0a 0b 0c 0d <span class="Comment"># xor 0x0d0c0b0a with EAX</span> +<span id="L228" class="LineNr">228 </span><span class="traceContains">+run: xor <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with <a href='010vm.cc.html#L13'>EAX</a></span> +<span id="L229" class="LineNr">229 </span><span class="traceContains">+run: storing 0xd0c0bbaa</span> +<span id="L230" class="LineNr">230 </span> +<span id="L231" class="LineNr">231 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L232" class="LineNr">232 </span><span class="Normal">case</span> <span class="Constant">0x35</span>: <span class="Delimiter">{</span> <span class="Comment">// xor imm32 with EAX</span> +<span id="L233" class="LineNr">233 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L234" class="LineNr">234 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"xor <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <span class="Constant">" with EAX"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L235" class="LineNr">235 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>^<span class="Delimiter">,</span> Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L236" class="LineNr">236 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L237" class="LineNr">237 </span><span class="Delimiter">}</span> +<span id="L238" class="LineNr">238 </span> +<span id="L239" class="LineNr">239 </span><span class="Comment">//:</span> +<span id="L240" class="LineNr">240 </span> +<span id="L241" class="LineNr">241 </span><span class="Delimiter">:(scenario xor_imm32_with_mem_at_r32)</span> +<span id="L242" class="LineNr">242 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L243" class="LineNr">243 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> +<span id="L244" class="LineNr">244 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L245" class="LineNr">245 </span> <span class="Constant">81</span> <span class="Constant">33</span> 0a 0b 0c 0d <span class="Comment"># xor 0x0d0c0b0a with *EBX</span> +<span id="L246" class="LineNr">246 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 110 (xor imm32) 011 (dest EBX)</span> +<span id="L247" class="LineNr">247 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L248" class="LineNr">248 </span>a0 b0 c0 d0 <span class="Comment"># 0xd0c0b0a0</span> +<span id="L249" class="LineNr">249 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L250" class="LineNr">250 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L251" class="LineNr">251 </span><span class="traceContains">+run: subop xor</span> +<span id="L252" class="LineNr">252 </span><span class="traceContains">+run: storing 0xddccbbaa</span> +<span id="L253" class="LineNr">253 </span> +<span id="L254" class="LineNr">254 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> +<span id="L255" class="LineNr">255 </span><span class="Normal">case</span> <span class="Constant">6</span>: <span class="Delimiter">{</span> +<span id="L256" class="LineNr">256 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop xor"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L257" class="LineNr">257 </span> <a href='010vm.cc.html#L81'>BINARY_BITWISE_OP</a><span class="Delimiter">(</span>^<span class="Delimiter">,</span> *arg1<span class="Delimiter">,</span> arg2<span class="Delimiter">);</span> +<span id="L258" class="LineNr">258 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L259" class="LineNr">259 </span><span class="Delimiter">}</span> +<span id="L260" class="LineNr">260 </span> +<span id="L261" class="LineNr">261 </span><span class="Delimiter">:(scenario xor_imm32_with_r32)</span> +<span id="L262" class="LineNr">262 </span><span class="Special">% Reg[EBX].i = 0xd0c0b0a0;</span> +<span id="L263" class="LineNr">263 </span>== <span class="Constant">0x1</span> +<span id="L264" class="LineNr">264 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L265" class="LineNr">265 </span> <span class="Constant">81</span> f3 0a 0b 0c 0d <span class="Comment"># xor 0x0d0c0b0a with EBX</span> +<span id="L266" class="LineNr">266 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 110 (xor imm32) 011 (dest EBX)</span> +<span id="L267" class="LineNr">267 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L268" class="LineNr">268 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L269" class="LineNr">269 </span><span class="traceContains">+run: subop xor</span> +<span id="L270" class="LineNr">270 </span><span class="traceContains">+run: storing 0xddccbbaa</span> +<span id="L271" class="LineNr">271 </span> +<span id="L272" class="LineNr">272 </span><span class="SalientComment">//:: compare (cmp)</span> +<span id="L273" class="LineNr">273 </span> +<span id="L274" class="LineNr">274 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L275" class="LineNr">275 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"3d"</span><span class="Delimiter">,</span> <span class="Constant">"subtract <a href='011run.cc.html#L253'>imm32</a> from R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L276" class="LineNr">276 </span> +<span id="L277" class="LineNr">277 </span><span class="Delimiter">:(scenario compare_imm32_with_eax_greater)</span> +<span id="L278" class="LineNr">278 </span><span class="Special">% Reg[EAX].i = 0x0d0c0b0a;</span> +<span id="L279" class="LineNr">279 </span>== <span class="Constant">0x1</span> +<span id="L280" class="LineNr">280 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L281" class="LineNr">281 </span> 3d <span class="PreProc">0</span><span class="Constant">7</span> 0b 0c 0d <span class="Comment"># compare 0x0d0c0b07 with EAX</span> +<span id="L282" class="LineNr">282 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L13'>EAX</a> and <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b07</span> +<span id="L283" class="LineNr">283 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> +<span id="L284" class="LineNr">284 </span> +<span id="L285" class="LineNr">285 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L286" class="LineNr">286 </span><span class="Normal">case</span> <span class="Constant">0x3d</span>: <span class="Delimiter">{</span> <span class="Comment">// subtract imm32 from EAX</span> +<span id="L287" class="LineNr">287 </span> <span class="Normal">int32_t</span> arg1 = Reg[EAX]<span class="Delimiter">.</span>i<span class="Delimiter">;</span> +<span id="L288" class="LineNr">288 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L289" class="LineNr">289 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"compare <a href='010vm.cc.html#L13'>EAX</a> and <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L290" class="LineNr">290 </span> <span class="Normal">int32_t</span> tmp1 = arg1 - arg2<span class="Delimiter">;</span> +<span id="L291" class="LineNr">291 </span> SF = <span class="Delimiter">(</span>tmp1 < <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L292" class="LineNr">292 </span> ZF = <span class="Delimiter">(</span>tmp1 == <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L293" class="LineNr">293 </span> <span class="Normal">int64_t</span> tmp2 = arg1 - arg2<span class="Delimiter">;</span> +<span id="L294" class="LineNr">294 </span> <a href='010vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>tmp1 != tmp2<span class="Delimiter">);</span> +<span id="L295" class="LineNr">295 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010vm.cc.html#L59'>OF</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L296" class="LineNr">296 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L297" class="LineNr">297 </span><span class="Delimiter">}</span> +<span id="L298" class="LineNr">298 </span> +<span id="L299" class="LineNr">299 </span><span class="Delimiter">:(scenario compare_imm32_with_eax_lesser)</span> +<span id="L300" class="LineNr">300 </span><span class="Special">% Reg[EAX].i = 0x0d0c0b07;</span> +<span id="L301" class="LineNr">301 </span>== <span class="Constant">0x1</span> +<span id="L302" class="LineNr">302 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L303" class="LineNr">303 </span> 3d 0a 0b 0c 0d <span class="Comment"># compare 0x0d0c0b0a with EAX</span> +<span id="L304" class="LineNr">304 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L13'>EAX</a> and <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a</span> +<span id="L305" class="LineNr">305 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> +<span id="L306" class="LineNr">306 </span> +<span id="L307" class="LineNr">307 </span><span class="Delimiter">:(scenario compare_imm32_with_eax_equal)</span> +<span id="L308" class="LineNr">308 </span><span class="Special">% Reg[EAX].i = 0x0d0c0b0a;</span> +<span id="L309" class="LineNr">309 </span>== <span class="Constant">0x1</span> +<span id="L310" class="LineNr">310 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L311" class="LineNr">311 </span> 3d 0a 0b 0c 0d <span class="Comment"># compare 0x0d0c0b0a with EAX</span> +<span id="L312" class="LineNr">312 </span><span class="traceContains">+run: compare <a href='010vm.cc.html#L13'>EAX</a> and <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a</span> +<span id="L313" class="LineNr">313 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> +<span id="L314" class="LineNr">314 </span> +<span id="L315" class="LineNr">315 </span><span class="Comment">//:</span> +<span id="L316" class="LineNr">316 </span> +<span id="L317" class="LineNr">317 </span><span class="Delimiter">:(scenario compare_imm32_with_r32_greater)</span> +<span id="L318" class="LineNr">318 </span><span class="Special">% Reg[EBX].i = 0x0d0c0b0a;</span> +<span id="L319" class="LineNr">319 </span>== <span class="Constant">0x1</span> +<span id="L320" class="LineNr">320 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L321" class="LineNr">321 </span> <span class="Constant">81</span> fb <span class="PreProc">0</span><span class="Constant">7</span> 0b 0c 0d <span class="Comment"># compare 0x0d0c0b07 with EBX</span> +<span id="L322" class="LineNr">322 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 111 (compare imm32) 011 (dest EBX)</span> +<span id="L323" class="LineNr">323 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b07 with r/m32</span> +<span id="L324" class="LineNr">324 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L325" class="LineNr">325 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> +<span id="L326" class="LineNr">326 </span> +<span id="L327" class="LineNr">327 </span><span class="Delimiter">:(before "End Op 81 Subops")</span> +<span id="L328" class="LineNr">328 </span><span class="Normal">case</span> <span class="Constant">7</span>: <span class="Delimiter">{</span> +<span id="L329" class="LineNr">329 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"subop compare"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L330" class="LineNr">330 </span> <span class="Normal">int32_t</span> tmp1 = *arg1 - arg2<span class="Delimiter">;</span> +<span id="L331" class="LineNr">331 </span> SF = <span class="Delimiter">(</span>tmp1 < <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L332" class="LineNr">332 </span> ZF = <span class="Delimiter">(</span>tmp1 == <span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L333" class="LineNr">333 </span> <span class="Normal">int64_t</span> tmp2 = *arg1 - arg2<span class="Delimiter">;</span> +<span id="L334" class="LineNr">334 </span> <a href='010vm.cc.html#L59'>OF</a> = <span class="Delimiter">(</span>tmp1 != tmp2<span class="Delimiter">);</span> +<span id="L335" class="LineNr">335 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"SF="</span> << SF << <span class="Constant">"; ZF="</span> << ZF << <span class="Constant">"; OF="</span> << <a href='010vm.cc.html#L59'>OF</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L336" class="LineNr">336 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L337" class="LineNr">337 </span><span class="Delimiter">}</span> +<span id="L338" class="LineNr">338 </span> +<span id="L339" class="LineNr">339 </span><span class="Delimiter">:(scenario compare_imm32_with_r32_lesser)</span> +<span id="L340" class="LineNr">340 </span><span class="Special">% Reg[EBX].i = 0x0d0c0b07;</span> +<span id="L341" class="LineNr">341 </span>== <span class="Constant">0x1</span> +<span id="L342" class="LineNr">342 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L343" class="LineNr">343 </span> <span class="Constant">81</span> fb 0a 0b 0c 0d <span class="Comment"># compare 0x0d0c0b0a with EBX</span> +<span id="L344" class="LineNr">344 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 111 (compare imm32) 011 (dest EBX)</span> +<span id="L345" class="LineNr">345 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L346" class="LineNr">346 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L347" class="LineNr">347 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> +<span id="L348" class="LineNr">348 </span> +<span id="L349" class="LineNr">349 </span><span class="Delimiter">:(scenario compare_imm32_with_r32_equal)</span> +<span id="L350" class="LineNr">350 </span><span class="Special">% Reg[EBX].i = 0x0d0c0b0a;</span> +<span id="L351" class="LineNr">351 </span>== <span class="Constant">0x1</span> +<span id="L352" class="LineNr">352 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L353" class="LineNr">353 </span> <span class="Constant">81</span> fb 0a 0b 0c 0d <span class="Comment"># compare 0x0d0c0b0a with EBX</span> +<span id="L354" class="LineNr">354 </span><span class="Comment"># ModR/M in binary: 11 (direct mode) 111 (compare imm32) 011 (dest EBX)</span> +<span id="L355" class="LineNr">355 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L356" class="LineNr">356 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L357" class="LineNr">357 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> +<span id="L358" class="LineNr">358 </span> +<span id="L359" class="LineNr">359 </span><span class="Delimiter">:(scenario compare_imm32_with_mem_at_r32_greater)</span> +<span id="L360" class="LineNr">360 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L361" class="LineNr">361 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> +<span id="L362" class="LineNr">362 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L363" class="LineNr">363 </span> <span class="Constant">81</span> 3b <span class="PreProc">0</span><span class="Constant">7</span> 0b 0c 0d <span class="Comment"># compare 0x0d0c0b07 with *EBX</span> +<span id="L364" class="LineNr">364 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 111 (compare imm32) 011 (dest EBX)</span> +<span id="L365" class="LineNr">365 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L366" class="LineNr">366 </span>0a 0b 0c 0d <span class="Comment"># 0x0d0c0b0a</span> +<span id="L367" class="LineNr">367 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b07 with r/m32</span> +<span id="L368" class="LineNr">368 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L369" class="LineNr">369 </span><span class="traceContains">+run: SF=0; ZF=0; OF=0</span> +<span id="L370" class="LineNr">370 </span> +<span id="L371" class="LineNr">371 </span><span class="Delimiter">:(scenario compare_imm32_with_mem_at_r32_lesser)</span> +<span id="L372" class="LineNr">372 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L373" class="LineNr">373 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> +<span id="L374" class="LineNr">374 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L375" class="LineNr">375 </span> <span class="Constant">81</span> 3b 0a 0b 0c 0d <span class="Comment"># compare 0x0d0c0b0a with *EBX</span> +<span id="L376" class="LineNr">376 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 111 (compare imm32) 011 (dest EBX)</span> +<span id="L377" class="LineNr">377 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L378" class="LineNr">378 </span><span class="PreProc">0</span><span class="Constant">7</span> 0b 0c 0d <span class="Comment"># 0x0d0c0b07</span> +<span id="L379" class="LineNr">379 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L380" class="LineNr">380 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L381" class="LineNr">381 </span><span class="traceContains">+run: SF=1; ZF=0; OF=0</span> +<span id="L382" class="LineNr">382 </span> +<span id="L383" class="LineNr">383 </span><span class="Delimiter">:(scenario compare_imm32_with_mem_at_r32_equal)</span> +<span id="L384" class="LineNr">384 </span><span class="Special">% Reg[EBX].i = 0x0d0c0b0a;</span> +<span id="L385" class="LineNr">385 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L386" class="LineNr">386 </span>== <span class="Constant">0x01</span> <span class="Comment"># code segment</span> +<span id="L387" class="LineNr">387 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L388" class="LineNr">388 </span> <span class="Constant">81</span> 3b 0a 0b 0c 0d <span class="Comment"># compare 0x0d0c0b0a with *EBX</span> +<span id="L389" class="LineNr">389 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 111 (compare imm32) 011 (dest EBX)</span> +<span id="L390" class="LineNr">390 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L391" class="LineNr">391 </span>0a 0b 0c 0d <span class="Comment"># 0x0d0c0b0a</span> +<span id="L392" class="LineNr">392 </span><span class="traceContains">+run: combine <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a with r/m32</span> +<span id="L393" class="LineNr">393 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L394" class="LineNr">394 </span><span class="traceContains">+run: SF=0; ZF=1; OF=0</span> +<span id="L395" class="LineNr">395 </span> +<span id="L396" class="LineNr">396 </span><span class="SalientComment">//:: copy (mov)</span> +<span id="L397" class="LineNr">397 </span> +<span id="L398" class="LineNr">398 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L399" class="LineNr">399 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"b8"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to R0 (EAX)"</span><span class="Delimiter">);</span> +<span id="L400" class="LineNr">400 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"b9"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to R1 (ECX)"</span><span class="Delimiter">);</span> +<span id="L401" class="LineNr">401 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"ba"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to R2 (EDX)"</span><span class="Delimiter">);</span> +<span id="L402" class="LineNr">402 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"bb"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to R3 (EBX)"</span><span class="Delimiter">);</span> +<span id="L403" class="LineNr">403 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"bc"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to R4 (ESP)"</span><span class="Delimiter">);</span> +<span id="L404" class="LineNr">404 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"bd"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to R5 (EBP)"</span><span class="Delimiter">);</span> +<span id="L405" class="LineNr">405 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"be"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to R6 (ESI)"</span><span class="Delimiter">);</span> +<span id="L406" class="LineNr">406 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"bf"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to R7 (EDI)"</span><span class="Delimiter">);</span> +<span id="L407" class="LineNr">407 </span> +<span id="L408" class="LineNr">408 </span><span class="Delimiter">:(scenario copy_imm32_to_r32)</span> +<span id="L409" class="LineNr">409 </span>== <span class="Constant">0x1</span> +<span id="L410" class="LineNr">410 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L411" class="LineNr">411 </span> bb 0a 0b 0c 0d <span class="Comment"># copy 0x0d0c0b0a to EBX</span> +<span id="L412" class="LineNr">412 </span><span class="traceContains">+run: copy <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a to <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L413" class="LineNr">413 </span> +<span id="L414" class="LineNr">414 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L415" class="LineNr">415 </span><span class="Normal">case</span> <span class="Constant">0xb8</span>: +<span id="L416" class="LineNr">416 </span><span class="Normal">case</span> <span class="Constant">0xb9</span>: +<span id="L417" class="LineNr">417 </span><span class="Normal">case</span> <span class="Constant">0xba</span>: +<span id="L418" class="LineNr">418 </span><span class="Normal">case</span> <span class="Constant">0xbb</span>: +<span id="L419" class="LineNr">419 </span><span class="Normal">case</span> <span class="Constant">0xbc</span>: +<span id="L420" class="LineNr">420 </span><span class="Normal">case</span> <span class="Constant">0xbd</span>: +<span id="L421" class="LineNr">421 </span><span class="Normal">case</span> <span class="Constant">0xbe</span>: +<span id="L422" class="LineNr">422 </span><span class="Normal">case</span> <span class="Constant">0xbf</span>: <span class="Delimiter">{</span> <span class="Comment">// copy imm32 to r32</span> +<span id="L423" class="LineNr">423 </span> <span class="Normal">uint8_t</span> reg1 = op & <span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L424" class="LineNr">424 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L425" class="LineNr">425 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <span class="Constant">" to "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>reg1<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L426" class="LineNr">426 </span> Reg[reg1]<span class="Delimiter">.</span>i = arg2<span class="Delimiter">;</span> +<span id="L427" class="LineNr">427 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L428" class="LineNr">428 </span><span class="Delimiter">}</span> +<span id="L429" class="LineNr">429 </span> +<span id="L430" class="LineNr">430 </span><span class="Comment">//:</span> +<span id="L431" class="LineNr">431 </span> +<span id="L432" class="LineNr">432 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L433" class="LineNr">433 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"c7"</span><span class="Delimiter">,</span> <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> to rm32"</span><span class="Delimiter">);</span> +<span id="L434" class="LineNr">434 </span> +<span id="L435" class="LineNr">435 </span><span class="Delimiter">:(scenario copy_imm32_to_mem_at_r32)</span> +<span id="L436" class="LineNr">436 </span><span class="Special">% Reg[EBX].i = 0x60;</span> +<span id="L437" class="LineNr">437 </span>== <span class="Constant">0x1</span> +<span id="L438" class="LineNr">438 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L439" class="LineNr">439 </span> c7 <span class="PreProc">0</span><span class="Constant">3</span> 0a 0b 0c 0d <span class="Comment"># copy 0x0d0c0b0a to *EBX</span> +<span id="L440" class="LineNr">440 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 000 (unused) 011 (dest EBX)</span> +<span id="L441" class="LineNr">441 </span><span class="traceContains">+run: copy <a href='011run.cc.html#L253'>imm32</a> 0x0d0c0b0a to r/m32</span> +<span id="L442" class="LineNr">442 </span><span class="traceContains">+run: effective address is 0x60 (EBX)</span> +<span id="L443" class="LineNr">443 </span> +<span id="L444" class="LineNr">444 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L445" class="LineNr">445 </span><span class="Normal">case</span> <span class="Constant">0xc7</span>: <span class="Delimiter">{</span> <span class="Comment">// copy imm32 to r32</span> +<span id="L446" class="LineNr">446 </span> <span class="Normal">uint8_t</span> modrm = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L447" class="LineNr">447 </span> <span class="Normal">int32_t</span> arg2 = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L448" class="LineNr">448 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"copy <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << arg2 << <span class="Constant">" to r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L449" class="LineNr">449 </span> <span class="Normal">int32_t</span>* arg1 = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L450" class="LineNr">450 </span> *arg1 = arg2<span class="Delimiter">;</span> +<span id="L451" class="LineNr">451 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L452" class="LineNr">452 </span><span class="Delimiter">}</span> +<span id="L453" class="LineNr">453 </span> +<span id="L454" class="LineNr">454 </span><span class="SalientComment">//:: push</span> +<span id="L455" class="LineNr">455 </span> +<span id="L456" class="LineNr">456 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L457" class="LineNr">457 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"68"</span><span class="Delimiter">,</span> <span class="Constant">"push <a href='011run.cc.html#L253'>imm32</a> to stack"</span><span class="Delimiter">);</span> +<span id="L458" class="LineNr">458 </span> +<span id="L459" class="LineNr">459 </span><span class="Delimiter">:(scenario push_imm32)</span> +<span id="L460" class="LineNr">460 </span><span class="Special">% Reg[ESP].u = 0x14;</span> +<span id="L461" class="LineNr">461 </span>== <span class="Constant">0x1</span> +<span id="L462" class="LineNr">462 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L463" class="LineNr">463 </span> <span class="Constant">68</span> af <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># push *EAX to stack</span> +<span id="L464" class="LineNr">464 </span><span class="traceContains">+run: <a href='012direct_addressing.cc.html#L344'>push</a> <a href='011run.cc.html#L253'>imm32</a> 0x000000af</span> +<span id="L465" class="LineNr">465 </span><span class="traceContains">+run: <a href='010vm.cc.html#L17'>ESP</a> is now 0x00000010</span> +<span id="L466" class="LineNr">466 </span><span class="traceContains">+run: <a href='003trace.cc.html#L74'>contents</a> at <a href='010vm.cc.html#L17'>ESP</a>: 0x000000af</span> +<span id="L467" class="LineNr">467 </span> +<span id="L468" class="LineNr">468 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L469" class="LineNr">469 </span><span class="Normal">case</span> <span class="Constant">0x68</span>: <span class="Delimiter">{</span> +<span id="L470" class="LineNr">470 </span> <span class="Normal">int32_t</span> val = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L471" class="LineNr">471 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"push <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << val << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L472" class="LineNr">472 </span> Reg[ESP]<span class="Delimiter">.</span>u -= <span class="Constant">4</span><span class="Delimiter">;</span> +<span id="L473" class="LineNr">473 </span> <a href='010vm.cc.html#L139'>write_mem_i32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">,</span> val<span class="Delimiter">);</span> +<span id="L474" class="LineNr">474 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"ESP is now 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << Reg[ESP]<span class="Delimiter">.</span>u << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L475" class="LineNr">475 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"contents at <a href='010vm.cc.html#L17'>ESP</a>: 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << <a href='010vm.cc.html#L110'>read_mem_u32</a><span class="Delimiter">(</span>Reg[ESP]<span class="Delimiter">.</span>u<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L476" class="LineNr">476 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L477" class="LineNr">477 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/015index_addressing.cc.html b/html/subx/015index_addressing.cc.html new file mode 100644 index 00000000..2cd90f2e --- /dev/null +++ b/html/subx/015index_addressing.cc.html @@ -0,0 +1,191 @@ +<!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 - subx/015index_addressing.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.Special { color: #c00000; } +.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; } +.traceContains { color: #008000; } +.Error { color: #ffffff; background-color: #ff6060; padding-bottom: 1px; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: operating on memory at the address provided by some register plus optional scale and offset</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_r32_with_sib)</span> +<span id="L4" class="LineNr"> 4 </span><span class="Special">% Reg[EBX].i = 0x10;</span> +<span id="L5" class="LineNr"> 5 </span><span class="Special">% Reg[EAX].i = 0x60;</span> +<span id="L6" class="LineNr"> 6 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L8" class="LineNr"> 8 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1c <span class="Constant">20</span> <span class="Comment"># add EBX to *EAX</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 100 (dest in SIB)</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># SIB in binary: 00 (scale 1) 100 (no index) 000 (base EAX)</span> +<span id="L11" class="LineNr"> 11 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L12" class="LineNr"> 12 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L13" class="LineNr"> 13 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: effective address is initially 0x60 (EAX)</span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: effective address is 0x60</span> +<span id="L16" class="LineNr"> 16 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L17" class="LineNr"> 17 </span> +<span id="L18" class="LineNr"> 18 </span><span class="Delimiter">:(before "End Mod 0 Special-cases(addr)")</span> +<span id="L19" class="LineNr"> 19 </span><span class="Normal">case</span> <span class="Constant">4</span>: <span class="Comment">// exception: mod 0b00 rm 0b100 => incoming SIB (scale-index-base) byte</span> +<span id="L20" class="LineNr"> 20 </span> addr = <a href='015index_addressing.cc.html#L23'>effective_address_from_sib</a><span class="Delimiter">(</span>mod<span class="Delimiter">);</span> +<span id="L21" class="LineNr"> 21 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(code)</span> +<span id="L23" class="LineNr"> 23 </span><span class="Normal">uint32_t</span> <a href='015index_addressing.cc.html#L23'>effective_address_from_sib</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> mod<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Normal">uint8_t</span> sib = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L25" class="LineNr"> 25 </span> <span class="Normal">uint8_t</span> base = sib&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L26" class="LineNr"> 26 </span> <span class="Normal">uint32_t</span> addr = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L27" class="LineNr"> 27 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>base != <a href='010vm.cc.html#L18'>EBP</a> || mod != <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L28" class="LineNr"> 28 </span> addr = Reg[base]<span class="Delimiter">.</span>u<span class="Delimiter">;</span> +<span id="L29" class="LineNr"> 29 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" ("</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>base<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Delimiter">}</span> +<span id="L31" class="LineNr"> 31 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Comment">// base == EBP && mod == 0</span> +<span id="L33" class="LineNr"> 33 </span> addr = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> <span class="Comment">// ignore base</span> +<span id="L34" class="LineNr"> 34 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is initially 0x"</span> << std::hex << addr << <span class="Constant">" (disp32)"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Delimiter">}</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Normal">uint8_t</span> index = <span class="Delimiter">(</span>sib>><span class="Constant">3</span><span class="Delimiter">)</span>&<span class="Constant">0x7</span><span class="Delimiter">;</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>index == <a href='010vm.cc.html#L17'>ESP</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Comment">// ignore index and scale</span> +<span id="L39" class="LineNr"> 39 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Delimiter">}</span> +<span id="L41" class="LineNr"> 41 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Normal">uint8_t</span> scale = <span class="Delimiter">(</span><span class="Constant">1</span> << <span class="Delimiter">(</span>sib>><span class="Constant">6</span><span class="Delimiter">));</span> +<span id="L43" class="LineNr"> 43 </span> addr += Reg[index]<span class="Delimiter">.</span>i*scale<span class="Delimiter">;</span> <span class="Comment">// treat index register as signed. Maybe base as well? But we'll always ensure it's non-negative.</span> +<span id="L44" class="LineNr"> 44 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"effective address is 0x"</span> << std::hex << addr << <span class="Constant">" (after adding "</span> << <a href='012direct_addressing.cc.html#L50'>rname</a><span class="Delimiter">(</span>index<span class="Delimiter">)</span> << <span class="Constant">"*"</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>scale<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Delimiter">}</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Identifier">return</span> addr<span class="Delimiter">;</span> +<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">}</span> +<span id="L48" class="LineNr"> 48 </span> +<span id="L49" class="LineNr"> 49 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_base_r32_index_r32)</span> +<span id="L50" class="LineNr"> 50 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L51" class="LineNr"> 51 </span><span class="Special">% Reg[EAX].i = 0x5e; // dest base</span> +<span id="L52" class="LineNr"> 52 </span><span class="Special">% Reg[ECX].i = 0x2; // dest index</span> +<span id="L53" class="LineNr"> 53 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L54" class="LineNr"> 54 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L55" class="LineNr"> 55 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1c <span class="Error">08</span> <span class="Comment"># add EBX to *(EAX+ECX)</span> +<span id="L56" class="LineNr"> 56 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 100 (dest in SIB)</span> +<span id="L57" class="LineNr"> 57 </span><span class="Comment"># SIB in binary: 00 (scale 1) 001 (index ECX) 000 (base EAX)</span> +<span id="L58" class="LineNr"> 58 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L59" class="LineNr"> 59 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L60" class="LineNr"> 60 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L61" class="LineNr"> 61 </span><span class="traceContains">+run: effective address is initially 0x5e (EAX)</span> +<span id="L62" class="LineNr"> 62 </span><span class="traceContains">+run: effective address is 0x60 (after adding ECX*1)</span> +<span id="L63" class="LineNr"> 63 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L64" class="LineNr"> 64 </span> +<span id="L65" class="LineNr"> 65 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_displacement_using_sib)</span> +<span id="L66" class="LineNr"> 66 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L67" class="LineNr"> 67 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L68" class="LineNr"> 68 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L69" class="LineNr"> 69 </span> <span class="PreProc">0</span><span class="Constant">1</span> 1c <span class="Constant">25</span> <span class="Constant">60</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *0x60</span> +<span id="L70" class="LineNr"> 70 </span><span class="Comment"># ModR/M in binary: 00 (indirect mode) 011 (src EBX) 100 (dest in SIB)</span> +<span id="L71" class="LineNr"> 71 </span><span class="Comment"># SIB in binary: 00 (scale 1) 100 (no index) 101 (not EBP but disp32)</span> +<span id="L72" class="LineNr"> 72 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L73" class="LineNr"> 73 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L74" class="LineNr"> 74 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L75" class="LineNr"> 75 </span><span class="traceContains">+run: effective address is initially 0x60 (disp32)</span> +<span id="L76" class="LineNr"> 76 </span><span class="traceContains">+run: effective address is 0x60</span> +<span id="L77" class="LineNr"> 77 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L78" class="LineNr"> 78 </span> +<span id="L79" class="LineNr"> 79 </span><span class="Comment">//:</span> +<span id="L80" class="LineNr"> 80 </span> +<span id="L81" class="LineNr"> 81 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_base_r32_index_r32_plus_disp8)</span> +<span id="L82" class="LineNr"> 82 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L83" class="LineNr"> 83 </span><span class="Special">% Reg[EAX].i = 0x59; // dest base</span> +<span id="L84" class="LineNr"> 84 </span><span class="Special">% Reg[ECX].i = 0x5; // dest index</span> +<span id="L85" class="LineNr"> 85 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L86" class="LineNr"> 86 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L87" class="LineNr"> 87 </span> <span class="PreProc">0</span><span class="Constant">1</span> 5c <span class="Error">08</span> <span class="PreProc">0</span><span class="Constant">2</span> <span class="Comment"># add EBX to *(EAX+ECX+2)</span> +<span id="L88" class="LineNr"> 88 </span><span class="Comment"># ModR/M in binary: 01 (indirect+disp8 mode) 011 (src EBX) 100 (dest in SIB)</span> +<span id="L89" class="LineNr"> 89 </span><span class="Comment"># SIB in binary: 00 (scale 1) 001 (index ECX) 000 (base EAX)</span> +<span id="L90" class="LineNr"> 90 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L91" class="LineNr"> 91 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L92" class="LineNr"> 92 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L93" class="LineNr"> 93 </span><span class="traceContains">+run: effective address is initially 0x59 (EAX)</span> +<span id="L94" class="LineNr"> 94 </span><span class="traceContains">+run: effective address is 0x5e (after adding ECX*1)</span> +<span id="L95" class="LineNr"> 95 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp8)</span> +<span id="L96" class="LineNr"> 96 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L97" class="LineNr"> 97 </span> +<span id="L98" class="LineNr"> 98 </span><span class="Delimiter">:(before "End Mod 1 Special-cases(addr)")</span> +<span id="L99" class="LineNr"> 99 </span><span class="Normal">case</span> <span class="Constant">4</span>: <span class="Comment">// exception: mod 0b01 rm 0b100 => incoming SIB (scale-index-base) byte</span> +<span id="L100" class="LineNr">100 </span> addr = <a href='015index_addressing.cc.html#L23'>effective_address_from_sib</a><span class="Delimiter">(</span>mod<span class="Delimiter">);</span> +<span id="L101" class="LineNr">101 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L102" class="LineNr">102 </span> +<span id="L103" class="LineNr">103 </span><span class="Comment">//:</span> +<span id="L104" class="LineNr">104 </span> +<span id="L105" class="LineNr">105 </span><span class="Delimiter">:(scenario add_r32_to_mem_at_base_r32_index_r32_plus_disp32)</span> +<span id="L106" class="LineNr">106 </span><span class="Special">% Reg[EBX].i = 0x10; // source</span> +<span id="L107" class="LineNr">107 </span><span class="Special">% Reg[EAX].i = 0x59; // dest base</span> +<span id="L108" class="LineNr">108 </span><span class="Special">% Reg[ECX].i = 0x5; // dest index</span> +<span id="L109" class="LineNr">109 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L110" class="LineNr">110 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L111" class="LineNr">111 </span> <span class="PreProc">0</span><span class="Constant">1</span> 9c <span class="Error">08</span> <span class="PreProc">0</span><span class="Constant">2</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># add EBX to *(EAX+ECX+2)</span> +<span id="L112" class="LineNr">112 </span><span class="Comment"># ModR/M in binary: 10 (indirect+disp32 mode) 011 (src EBX) 100 (dest in SIB)</span> +<span id="L113" class="LineNr">113 </span><span class="Comment"># SIB in binary: 00 (scale 1) 001 (index ECX) 000 (base EAX)</span> +<span id="L114" class="LineNr">114 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L115" class="LineNr">115 </span><span class="PreProc">0</span><span class="Constant">1</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 1</span> +<span id="L116" class="LineNr">116 </span><span class="traceContains">+run: add <a href='010vm.cc.html#L16'>EBX</a> to r/m32</span> +<span id="L117" class="LineNr">117 </span><span class="traceContains">+run: effective address is initially 0x59 (EAX)</span> +<span id="L118" class="LineNr">118 </span><span class="traceContains">+run: effective address is 0x5e (after adding ECX*1)</span> +<span id="L119" class="LineNr">119 </span><span class="traceContains">+run: effective address is 0x60 (after adding disp32)</span> +<span id="L120" class="LineNr">120 </span><span class="traceContains">+run: storing 0x00000011</span> +<span id="L121" class="LineNr">121 </span> +<span id="L122" class="LineNr">122 </span><span class="Delimiter">:(before "End Mod 2 Special-cases(addr)")</span> +<span id="L123" class="LineNr">123 </span><span class="Normal">case</span> <span class="Constant">4</span>: <span class="Comment">// exception: mod 0b10 rm 0b100 => incoming SIB (scale-index-base) byte</span> +<span id="L124" class="LineNr">124 </span> addr = <a href='015index_addressing.cc.html#L23'>effective_address_from_sib</a><span class="Delimiter">(</span>mod<span class="Delimiter">);</span> +<span id="L125" class="LineNr">125 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/016jump_relative.cc.html b/html/subx/016jump_relative.cc.html index 9a9049e2..87507c3b 100644 --- a/html/subx/016jump_relative.cc.html +++ b/html/subx/016jump_relative.cc.html @@ -61,264 +61,293 @@ if ('onhashchange' in window) { </head> <body onload='JumpToLine();'> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: jump to 16-bit offset</span> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: jump to 8-bit offset</span> <span id="L2" class="LineNr"> 2 </span> <span id="L3" class="LineNr"> 3 </span><span class="SalientComment">//:: jump</span> <span id="L4" class="LineNr"> 4 </span> -<span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(scenario jump_rel16)</span> -<span id="L6" class="LineNr"> 6 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L7" class="LineNr"> 7 </span> e9 <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L8" class="LineNr"> 8 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L9" class="LineNr"> 9 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L10" class="LineNr"> 10 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L11" class="LineNr"> 11 </span><span class="traceContains">+run: jump 5</span> -<span id="L12" class="LineNr"> 12 </span><span class="traceContains">+run: inst: 0x00000009</span> -<span id="L13" class="LineNr"> 13 </span><span class="traceAbsent">-run: inst: 0x00000003</span> -<span id="L14" class="LineNr"> 14 </span> -<span id="L15" class="LineNr"> 15 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> -<span id="L16" class="LineNr"> 16 </span><span class="Normal">case</span> <span class="Constant">0xe9</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8</span> -<span id="L17" class="LineNr"> 17 </span> <span class="Normal">int16_t</span> offset = <a href='016jump_relative.cc.html#L23'>imm16</a><span class="Delimiter">();</span> -<span id="L18" class="LineNr"> 18 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << offset << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L19" class="LineNr"> 19 </span> <a href='010core.cc.html#L23'>EIP</a> += offset<span class="Delimiter">;</span> -<span id="L20" class="LineNr"> 20 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L21" class="LineNr"> 21 </span><span class="Delimiter">}</span> -<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(code)</span> -<span id="L23" class="LineNr"> 23 </span><span class="Normal">int16_t</span> <a href='016jump_relative.cc.html#L23'>imm16</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> -<span id="L24" class="LineNr"> 24 </span> <span class="Normal">int16_t</span> result = <a href='010core.cc.html#L214'>next</a><span class="Delimiter">();</span> -<span id="L25" class="LineNr"> 25 </span> result |= <span class="Delimiter">(</span><a href='010core.cc.html#L214'>next</a><span class="Delimiter">()</span><<<span class="Constant">8</span><span class="Delimiter">);</span> -<span id="L26" class="LineNr"> 26 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> -<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">}</span> +<span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L6" class="LineNr"> 6 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"eb"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away"</span><span class="Delimiter">);</span> +<span id="L7" class="LineNr"> 7 </span> +<span id="L8" class="LineNr"> 8 </span><span class="Delimiter">:(scenario jump_rel8)</span> +<span id="L9" class="LineNr"> 9 </span>== <span class="Constant">0x1</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L11" class="LineNr"> 11 </span> eb <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L12" class="LineNr"> 12 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L13" class="LineNr"> 13 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: jump 5</span> +<span id="L16" class="LineNr"> 16 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L17" class="LineNr"> 17 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L18" class="LineNr"> 18 </span> +<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L20" class="LineNr"> 20 </span><span class="Normal">case</span> <span class="Constant">0xeb</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8</span> +<span id="L21" class="LineNr"> 21 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">());</span> +<span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L23" class="LineNr"> 23 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<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="SalientComment">//:: jump if equal/zero</span> <span id="L28" class="LineNr"> 28 </span> -<span id="L29" class="LineNr"> 29 </span><span class="SalientComment">//:: jump if equal/zero</span> -<span id="L30" class="LineNr"> 30 </span> -<span id="L31" class="LineNr"> 31 </span><span class="Delimiter">:(scenario je_rel16_success)</span> -<span id="L32" class="LineNr"> 32 </span><span class="Special">% ZF = true;</span> -<span id="L33" class="LineNr"> 33 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L34" class="LineNr"> 34 </span> <span class="Constant">0f</span> <span class="Constant">84</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L35" class="LineNr"> 35 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L36" class="LineNr"> 36 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L37" class="LineNr"> 37 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L38" class="LineNr"> 38 </span><span class="traceContains">+run: jump 5</span> -<span id="L39" class="LineNr"> 39 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L40" class="LineNr"> 40 </span><span class="traceAbsent">-run: inst: 0x00000005</span> -<span id="L41" class="LineNr"> 41 </span> -<span id="L42" class="LineNr"> 42 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> -<span id="L43" class="LineNr"> 43 </span><span class="Normal">case</span> <span class="Constant">0x84</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if ZF</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Normal">int8_t</span> offset = <a href='016jump_relative.cc.html#L23'>imm16</a><span class="Delimiter">();</span> -<span id="L45" class="LineNr"> 45 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L46" class="LineNr"> 46 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010core.cc.html#L246'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L47" class="LineNr"> 47 </span> <a href='010core.cc.html#L23'>EIP</a> += offset<span class="Delimiter">;</span> -<span id="L48" class="LineNr"> 48 </span> <span class="Delimiter">}</span> -<span id="L49" class="LineNr"> 49 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L50" class="LineNr"> 50 </span><span class="Delimiter">}</span> -<span id="L51" class="LineNr"> 51 </span> -<span id="L52" class="LineNr"> 52 </span><span class="Delimiter">:(scenario je_rel16_fail)</span> -<span id="L53" class="LineNr"> 53 </span><span class="Special">% ZF = false;</span> -<span id="L54" class="LineNr"> 54 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L55" class="LineNr"> 55 </span> <span class="Constant">0f</span> <span class="Constant">84</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L56" class="LineNr"> 56 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L57" class="LineNr"> 57 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L58" class="LineNr"> 58 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L59" class="LineNr"> 59 </span><span class="traceContains">+run: inst: 0x00000005</span> -<span id="L60" class="LineNr"> 60 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L61" class="LineNr"> 61 </span><span class="traceAbsent">-run: jump 5</span> -<span id="L62" class="LineNr"> 62 </span> -<span id="L63" class="LineNr"> 63 </span><span class="SalientComment">//:: jump if not equal/not zero</span> -<span id="L64" class="LineNr"> 64 </span> -<span id="L65" class="LineNr"> 65 </span><span class="Delimiter">:(scenario jne_rel16_success)</span> -<span id="L66" class="LineNr"> 66 </span><span class="Special">% ZF = false;</span> -<span id="L67" class="LineNr"> 67 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L68" class="LineNr"> 68 </span> <span class="Constant">0f</span> <span class="Constant">85</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L69" class="LineNr"> 69 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L70" class="LineNr"> 70 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L71" class="LineNr"> 71 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L72" class="LineNr"> 72 </span><span class="traceContains">+run: jump 5</span> -<span id="L73" class="LineNr"> 73 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L74" class="LineNr"> 74 </span><span class="traceAbsent">-run: inst: 0x00000005</span> -<span id="L75" class="LineNr"> 75 </span> -<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> -<span id="L77" class="LineNr"> 77 </span><span class="Normal">case</span> <span class="Constant">0x85</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 unless ZF</span> -<span id="L78" class="LineNr"> 78 </span> <span class="Normal">int8_t</span> offset = <a href='016jump_relative.cc.html#L23'>imm16</a><span class="Delimiter">();</span> -<span id="L79" class="LineNr"> 79 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L80" class="LineNr"> 80 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010core.cc.html#L246'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L81" class="LineNr"> 81 </span> <a href='010core.cc.html#L23'>EIP</a> += offset<span class="Delimiter">;</span> -<span id="L82" class="LineNr"> 82 </span> <span class="Delimiter">}</span> -<span id="L83" class="LineNr"> 83 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L84" class="LineNr"> 84 </span><span class="Delimiter">}</span> -<span id="L85" class="LineNr"> 85 </span> -<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">:(scenario jne_rel16_fail)</span> -<span id="L87" class="LineNr"> 87 </span><span class="Special">% ZF = true;</span> -<span id="L88" class="LineNr"> 88 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L89" class="LineNr"> 89 </span> <span class="Constant">0f</span> <span class="Constant">85</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L90" class="LineNr"> 90 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L91" class="LineNr"> 91 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L92" class="LineNr"> 92 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L93" class="LineNr"> 93 </span><span class="traceContains">+run: inst: 0x00000005</span> -<span id="L94" class="LineNr"> 94 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L95" class="LineNr"> 95 </span><span class="traceAbsent">-run: jump 5</span> -<span id="L96" class="LineNr"> 96 </span> -<span id="L97" class="LineNr"> 97 </span><span class="SalientComment">//:: jump if greater</span> -<span id="L98" class="LineNr"> 98 </span> -<span id="L99" class="LineNr"> 99 </span><span class="Delimiter">:(scenario jg_rel16_success)</span> -<span id="L100" class="LineNr">100 </span><span class="Special">% ZF = false;</span> -<span id="L101" class="LineNr">101 </span><span class="Special">% SF = false;</span> -<span id="L102" class="LineNr">102 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L103" class="LineNr">103 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L104" class="LineNr">104 </span> <span class="Constant">0f</span> <span class="Constant">8f</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L105" class="LineNr">105 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L106" class="LineNr">106 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L107" class="LineNr">107 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L108" class="LineNr">108 </span><span class="traceContains">+run: jump 5</span> -<span id="L109" class="LineNr">109 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L110" class="LineNr">110 </span><span class="traceAbsent">-run: inst: 0x00000005</span> -<span id="L111" class="LineNr">111 </span> -<span id="L112" class="LineNr">112 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> -<span id="L113" class="LineNr">113 </span><span class="Normal">case</span> <span class="Constant">0x8f</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if !SF and !ZF</span> -<span id="L114" class="LineNr">114 </span> <span class="Normal">int8_t</span> offset = <a href='016jump_relative.cc.html#L23'>imm16</a><span class="Delimiter">();</span> -<span id="L115" class="LineNr">115 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF && SF == <a href='010core.cc.html#L33'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L116" class="LineNr">116 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010core.cc.html#L246'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L117" class="LineNr">117 </span> <a href='010core.cc.html#L23'>EIP</a> += offset<span class="Delimiter">;</span> -<span id="L118" class="LineNr">118 </span> <span class="Delimiter">}</span> -<span id="L119" class="LineNr">119 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L120" class="LineNr">120 </span><span class="Delimiter">}</span> -<span id="L121" class="LineNr">121 </span> -<span id="L122" class="LineNr">122 </span><span class="Delimiter">:(scenario jg_rel16_fail)</span> -<span id="L123" class="LineNr">123 </span><span class="Special">% ZF = false;</span> -<span id="L124" class="LineNr">124 </span><span class="Special">% SF = true;</span> -<span id="L125" class="LineNr">125 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L126" class="LineNr">126 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L127" class="LineNr">127 </span> <span class="Constant">0f</span> <span class="Constant">8f</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L128" class="LineNr">128 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L129" class="LineNr">129 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L130" class="LineNr">130 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L131" class="LineNr">131 </span><span class="traceContains">+run: inst: 0x00000005</span> -<span id="L132" class="LineNr">132 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L133" class="LineNr">133 </span><span class="traceAbsent">-run: jump 5</span> -<span id="L134" class="LineNr">134 </span> -<span id="L135" class="LineNr">135 </span><span class="SalientComment">//:: jump if greater or equal</span> -<span id="L136" class="LineNr">136 </span> -<span id="L137" class="LineNr">137 </span><span class="Delimiter">:(scenario jge_rel16_success)</span> -<span id="L138" class="LineNr">138 </span><span class="Special">% SF = false;</span> -<span id="L139" class="LineNr">139 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L140" class="LineNr">140 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L141" class="LineNr">141 </span> <span class="Constant">0f</span> 8d <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L142" class="LineNr">142 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L143" class="LineNr">143 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L144" class="LineNr">144 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L145" class="LineNr">145 </span><span class="traceContains">+run: jump 5</span> -<span id="L146" class="LineNr">146 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L147" class="LineNr">147 </span><span class="traceAbsent">-run: inst: 0x00000005</span> -<span id="L148" class="LineNr">148 </span> -<span id="L149" class="LineNr">149 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> -<span id="L150" class="LineNr">150 </span><span class="Normal">case</span> <span class="Constant">0x8d</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if !SF</span> -<span id="L151" class="LineNr">151 </span> <span class="Normal">int8_t</span> offset = <a href='016jump_relative.cc.html#L23'>imm16</a><span class="Delimiter">();</span> -<span id="L152" class="LineNr">152 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF == <a href='010core.cc.html#L33'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L153" class="LineNr">153 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010core.cc.html#L246'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L154" class="LineNr">154 </span> <a href='010core.cc.html#L23'>EIP</a> += offset<span class="Delimiter">;</span> -<span id="L155" class="LineNr">155 </span> <span class="Delimiter">}</span> -<span id="L156" class="LineNr">156 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L157" class="LineNr">157 </span><span class="Delimiter">}</span> -<span id="L158" class="LineNr">158 </span> -<span id="L159" class="LineNr">159 </span><span class="Delimiter">:(scenario jge_rel16_fail)</span> -<span id="L160" class="LineNr">160 </span><span class="Special">% SF = true;</span> -<span id="L161" class="LineNr">161 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L162" class="LineNr">162 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L163" class="LineNr">163 </span> <span class="Constant">0f</span> 8d <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L164" class="LineNr">164 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L165" class="LineNr">165 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L166" class="LineNr">166 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L167" class="LineNr">167 </span><span class="traceContains">+run: inst: 0x00000005</span> -<span id="L168" class="LineNr">168 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L169" class="LineNr">169 </span><span class="traceAbsent">-run: jump 5</span> -<span id="L170" class="LineNr">170 </span> -<span id="L171" class="LineNr">171 </span><span class="SalientComment">//:: jump if lesser</span> -<span id="L172" class="LineNr">172 </span> -<span id="L173" class="LineNr">173 </span><span class="Delimiter">:(scenario jl_rel16_success)</span> -<span id="L174" class="LineNr">174 </span><span class="Special">% ZF = false;</span> -<span id="L175" class="LineNr">175 </span><span class="Special">% SF = true;</span> -<span id="L176" class="LineNr">176 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L177" class="LineNr">177 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L178" class="LineNr">178 </span> <span class="Constant">0f</span> 8c <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L179" class="LineNr">179 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L180" class="LineNr">180 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L181" class="LineNr">181 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L182" class="LineNr">182 </span><span class="traceContains">+run: jump 5</span> -<span id="L183" class="LineNr">183 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L184" class="LineNr">184 </span><span class="traceAbsent">-run: inst: 0x00000005</span> -<span id="L185" class="LineNr">185 </span> -<span id="L186" class="LineNr">186 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> -<span id="L187" class="LineNr">187 </span><span class="Normal">case</span> <span class="Constant">0x8c</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if SF and !ZF</span> -<span id="L188" class="LineNr">188 </span> <span class="Normal">int8_t</span> offset = <a href='016jump_relative.cc.html#L23'>imm16</a><span class="Delimiter">();</span> -<span id="L189" class="LineNr">189 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF != <a href='010core.cc.html#L33'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L190" class="LineNr">190 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010core.cc.html#L246'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L191" class="LineNr">191 </span> <a href='010core.cc.html#L23'>EIP</a> += offset<span class="Delimiter">;</span> -<span id="L192" class="LineNr">192 </span> <span class="Delimiter">}</span> -<span id="L193" class="LineNr">193 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L194" class="LineNr">194 </span><span class="Delimiter">}</span> -<span id="L195" class="LineNr">195 </span> -<span id="L196" class="LineNr">196 </span><span class="Delimiter">:(scenario jl_rel16_fail)</span> -<span id="L197" class="LineNr">197 </span><span class="Special">% ZF = false;</span> -<span id="L198" class="LineNr">198 </span><span class="Special">% SF = false;</span> -<span id="L199" class="LineNr">199 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L200" class="LineNr">200 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L201" class="LineNr">201 </span> <span class="Constant">0f</span> 8c <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L202" class="LineNr">202 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L203" class="LineNr">203 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L204" class="LineNr">204 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L205" class="LineNr">205 </span><span class="traceContains">+run: inst: 0x00000005</span> -<span id="L206" class="LineNr">206 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L207" class="LineNr">207 </span><span class="traceAbsent">-run: jump 5</span> -<span id="L208" class="LineNr">208 </span> -<span id="L209" class="LineNr">209 </span><span class="SalientComment">//:: jump if lesser or equal</span> -<span id="L210" class="LineNr">210 </span> -<span id="L211" class="LineNr">211 </span><span class="Delimiter">:(scenario jle_rel16_equal)</span> -<span id="L212" class="LineNr">212 </span><span class="Special">% ZF = true;</span> -<span id="L213" class="LineNr">213 </span><span class="Special">% SF = false;</span> -<span id="L214" class="LineNr">214 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L215" class="LineNr">215 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L216" class="LineNr">216 </span> <span class="Constant">0f</span> 8e <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L217" class="LineNr">217 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L218" class="LineNr">218 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L219" class="LineNr">219 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L220" class="LineNr">220 </span><span class="traceContains">+run: jump 5</span> -<span id="L221" class="LineNr">221 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L222" class="LineNr">222 </span><span class="traceAbsent">-run: inst: 0x00000005</span> -<span id="L223" class="LineNr">223 </span> -<span id="L224" class="LineNr">224 </span><span class="Delimiter">:(scenario jle_rel16_lesser)</span> -<span id="L225" class="LineNr">225 </span><span class="Special">% ZF = false;</span> -<span id="L226" class="LineNr">226 </span><span class="Special">% SF = true;</span> -<span id="L227" class="LineNr">227 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L228" class="LineNr">228 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L229" class="LineNr">229 </span> <span class="Constant">0f</span> 8e <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L230" class="LineNr">230 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L231" class="LineNr">231 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L232" class="LineNr">232 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L233" class="LineNr">233 </span><span class="traceContains">+run: jump 5</span> -<span id="L234" class="LineNr">234 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L235" class="LineNr">235 </span><span class="traceAbsent">-run: inst: 0x00000005</span> +<span id="L29" class="LineNr"> 29 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L30" class="LineNr"> 30 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"74"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if ZF is set"</span><span class="Delimiter">);</span> +<span id="L31" class="LineNr"> 31 </span> +<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">:(scenario je_rel8_success)</span> +<span id="L33" class="LineNr"> 33 </span><span class="Special">% ZF = true;</span> +<span id="L34" class="LineNr"> 34 </span>== <span class="Constant">0x1</span> +<span id="L35" class="LineNr"> 35 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Constant">74</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L37" class="LineNr"> 37 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L38" class="LineNr"> 38 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L39" class="LineNr"> 39 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L40" class="LineNr"> 40 </span><span class="traceContains">+run: jump 5</span> +<span id="L41" class="LineNr"> 41 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L42" class="LineNr"> 42 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L43" class="LineNr"> 43 </span> +<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L45" class="LineNr"> 45 </span><span class="Normal">case</span> <span class="Constant">0x74</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if ZF</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">());</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L48" class="LineNr"> 48 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L49" class="LineNr"> 49 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L50" class="LineNr"> 50 </span> <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="Delimiter">}</span> +<span id="L53" class="LineNr"> 53 </span> +<span id="L54" class="LineNr"> 54 </span><span class="Delimiter">:(scenario je_rel8_fail)</span> +<span id="L55" class="LineNr"> 55 </span><span class="Special">% ZF = false;</span> +<span id="L56" class="LineNr"> 56 </span>== <span class="Constant">0x1</span> +<span id="L57" class="LineNr"> 57 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Constant">74</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L59" class="LineNr"> 59 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L60" class="LineNr"> 60 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L61" class="LineNr"> 61 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L62" class="LineNr"> 62 </span><span class="traceContains">+run: inst: 0x00000003</span> +<span id="L63" class="LineNr"> 63 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L64" class="LineNr"> 64 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L65" class="LineNr"> 65 </span> +<span id="L66" class="LineNr"> 66 </span><span class="SalientComment">//:: jump if not equal/not zero</span> +<span id="L67" class="LineNr"> 67 </span> +<span id="L68" class="LineNr"> 68 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L69" class="LineNr"> 69 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"75"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if ZF is not set"</span><span class="Delimiter">);</span> +<span id="L70" class="LineNr"> 70 </span> +<span id="L71" class="LineNr"> 71 </span><span class="Delimiter">:(scenario jne_rel8_success)</span> +<span id="L72" class="LineNr"> 72 </span><span class="Special">% ZF = false;</span> +<span id="L73" class="LineNr"> 73 </span>== <span class="Constant">0x1</span> +<span id="L74" class="LineNr"> 74 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Constant">75</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L76" class="LineNr"> 76 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L77" class="LineNr"> 77 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L78" class="LineNr"> 78 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L79" class="LineNr"> 79 </span><span class="traceContains">+run: jump 5</span> +<span id="L80" class="LineNr"> 80 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L81" class="LineNr"> 81 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L82" class="LineNr"> 82 </span> +<span id="L83" class="LineNr"> 83 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L84" class="LineNr"> 84 </span><span class="Normal">case</span> <span class="Constant">0x75</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 unless ZF</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">());</span> +<span id="L86" class="LineNr"> 86 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L87" class="LineNr"> 87 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L88" class="LineNr"> 88 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L89" class="LineNr"> 89 </span> <span class="Delimiter">}</span> +<span id="L90" class="LineNr"> 90 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L91" class="LineNr"> 91 </span><span class="Delimiter">}</span> +<span id="L92" class="LineNr"> 92 </span> +<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">:(scenario jne_rel8_fail)</span> +<span id="L94" class="LineNr"> 94 </span><span class="Special">% ZF = true;</span> +<span id="L95" class="LineNr"> 95 </span>== <span class="Constant">0x1</span> +<span id="L96" class="LineNr"> 96 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L97" class="LineNr"> 97 </span> <span class="Constant">75</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L98" class="LineNr"> 98 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L99" class="LineNr"> 99 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L100" class="LineNr">100 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L101" class="LineNr">101 </span><span class="traceContains">+run: inst: 0x00000003</span> +<span id="L102" class="LineNr">102 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L103" class="LineNr">103 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L104" class="LineNr">104 </span> +<span id="L105" class="LineNr">105 </span><span class="SalientComment">//:: jump if greater</span> +<span id="L106" class="LineNr">106 </span> +<span id="L107" class="LineNr">107 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L108" class="LineNr">108 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"7f"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if greater (ZF is unset, SF == OF)"</span><span class="Delimiter">);</span> +<span id="L109" class="LineNr">109 </span> +<span id="L110" class="LineNr">110 </span><span class="Delimiter">:(scenario jg_rel8_success)</span> +<span id="L111" class="LineNr">111 </span><span class="Special">% ZF = false;</span> +<span id="L112" class="LineNr">112 </span><span class="Special">% SF = false;</span> +<span id="L113" class="LineNr">113 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L114" class="LineNr">114 </span>== <span class="Constant">0x1</span> +<span id="L115" class="LineNr">115 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L116" class="LineNr">116 </span> <span class="Constant">7f</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L117" class="LineNr">117 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L118" class="LineNr">118 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L119" class="LineNr">119 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L120" class="LineNr">120 </span><span class="traceContains">+run: jump 5</span> +<span id="L121" class="LineNr">121 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L122" class="LineNr">122 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L123" class="LineNr">123 </span> +<span id="L124" class="LineNr">124 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L125" class="LineNr">125 </span><span class="Normal">case</span> <span class="Constant">0x7f</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if !SF and !ZF</span> +<span id="L126" class="LineNr">126 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">());</span> +<span id="L127" class="LineNr">127 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF && SF == <a href='010vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L128" class="LineNr">128 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L129" class="LineNr">129 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L130" class="LineNr">130 </span> <span class="Delimiter">}</span> +<span id="L131" class="LineNr">131 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L132" class="LineNr">132 </span><span class="Delimiter">}</span> +<span id="L133" class="LineNr">133 </span> +<span id="L134" class="LineNr">134 </span><span class="Delimiter">:(scenario jg_rel8_fail)</span> +<span id="L135" class="LineNr">135 </span><span class="Special">% ZF = false;</span> +<span id="L136" class="LineNr">136 </span><span class="Special">% SF = true;</span> +<span id="L137" class="LineNr">137 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L138" class="LineNr">138 </span>== <span class="Constant">0x1</span> +<span id="L139" class="LineNr">139 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L140" class="LineNr">140 </span> <span class="Constant">7f</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L141" class="LineNr">141 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L142" class="LineNr">142 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L143" class="LineNr">143 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L144" class="LineNr">144 </span><span class="traceContains">+run: inst: 0x00000003</span> +<span id="L145" class="LineNr">145 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L146" class="LineNr">146 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L147" class="LineNr">147 </span> +<span id="L148" class="LineNr">148 </span><span class="SalientComment">//:: jump if greater or equal</span> +<span id="L149" class="LineNr">149 </span> +<span id="L150" class="LineNr">150 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L151" class="LineNr">151 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"7d"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if greater or equal (SF == OF)"</span><span class="Delimiter">);</span> +<span id="L152" class="LineNr">152 </span> +<span id="L153" class="LineNr">153 </span><span class="Delimiter">:(scenario jge_rel8_success)</span> +<span id="L154" class="LineNr">154 </span><span class="Special">% SF = false;</span> +<span id="L155" class="LineNr">155 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L156" class="LineNr">156 </span>== <span class="Constant">0x1</span> +<span id="L157" class="LineNr">157 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L158" class="LineNr">158 </span> 7d <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L159" class="LineNr">159 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L160" class="LineNr">160 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L161" class="LineNr">161 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L162" class="LineNr">162 </span><span class="traceContains">+run: jump 5</span> +<span id="L163" class="LineNr">163 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L164" class="LineNr">164 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L165" class="LineNr">165 </span> +<span id="L166" class="LineNr">166 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L167" class="LineNr">167 </span><span class="Normal">case</span> <span class="Constant">0x7d</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if !SF</span> +<span id="L168" class="LineNr">168 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">());</span> +<span id="L169" class="LineNr">169 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF == <a href='010vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L170" class="LineNr">170 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L171" class="LineNr">171 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L172" class="LineNr">172 </span> <span class="Delimiter">}</span> +<span id="L173" class="LineNr">173 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L174" class="LineNr">174 </span><span class="Delimiter">}</span> +<span id="L175" class="LineNr">175 </span> +<span id="L176" class="LineNr">176 </span><span class="Delimiter">:(scenario jge_rel8_fail)</span> +<span id="L177" class="LineNr">177 </span><span class="Special">% SF = true;</span> +<span id="L178" class="LineNr">178 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L179" class="LineNr">179 </span>== <span class="Constant">0x1</span> +<span id="L180" class="LineNr">180 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L181" class="LineNr">181 </span> 7d <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L182" class="LineNr">182 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L183" class="LineNr">183 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L184" class="LineNr">184 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L185" class="LineNr">185 </span><span class="traceContains">+run: inst: 0x00000003</span> +<span id="L186" class="LineNr">186 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L187" class="LineNr">187 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L188" class="LineNr">188 </span> +<span id="L189" class="LineNr">189 </span><span class="SalientComment">//:: jump if lesser</span> +<span id="L190" class="LineNr">190 </span> +<span id="L191" class="LineNr">191 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L192" class="LineNr">192 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"7c"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if lesser (SF != OF)"</span><span class="Delimiter">);</span> +<span id="L193" class="LineNr">193 </span> +<span id="L194" class="LineNr">194 </span><span class="Delimiter">:(scenario jl_rel8_success)</span> +<span id="L195" class="LineNr">195 </span><span class="Special">% ZF = false;</span> +<span id="L196" class="LineNr">196 </span><span class="Special">% SF = true;</span> +<span id="L197" class="LineNr">197 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L198" class="LineNr">198 </span>== <span class="Constant">0x1</span> +<span id="L199" class="LineNr">199 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L200" class="LineNr">200 </span> 7c <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L201" class="LineNr">201 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L202" class="LineNr">202 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L203" class="LineNr">203 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L204" class="LineNr">204 </span><span class="traceContains">+run: jump 5</span> +<span id="L205" class="LineNr">205 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L206" class="LineNr">206 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L207" class="LineNr">207 </span> +<span id="L208" class="LineNr">208 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L209" class="LineNr">209 </span><span class="Normal">case</span> <span class="Constant">0x7c</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if SF and !ZF</span> +<span id="L210" class="LineNr">210 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">());</span> +<span id="L211" class="LineNr">211 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF != <a href='010vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L212" class="LineNr">212 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L213" class="LineNr">213 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L214" class="LineNr">214 </span> <span class="Delimiter">}</span> +<span id="L215" class="LineNr">215 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L216" class="LineNr">216 </span><span class="Delimiter">}</span> +<span id="L217" class="LineNr">217 </span> +<span id="L218" class="LineNr">218 </span><span class="Delimiter">:(scenario jl_rel8_fail)</span> +<span id="L219" class="LineNr">219 </span><span class="Special">% ZF = false;</span> +<span id="L220" class="LineNr">220 </span><span class="Special">% SF = false;</span> +<span id="L221" class="LineNr">221 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L222" class="LineNr">222 </span>== <span class="Constant">0x1</span> +<span id="L223" class="LineNr">223 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L224" class="LineNr">224 </span> 7c <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L225" class="LineNr">225 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L226" class="LineNr">226 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L227" class="LineNr">227 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L228" class="LineNr">228 </span><span class="traceContains">+run: inst: 0x00000003</span> +<span id="L229" class="LineNr">229 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L230" class="LineNr">230 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L231" class="LineNr">231 </span> +<span id="L232" class="LineNr">232 </span><span class="SalientComment">//:: jump if lesser or equal</span> +<span id="L233" class="LineNr">233 </span> +<span id="L234" class="LineNr">234 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L235" class="LineNr">235 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"7e"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp8 bytes away if lesser or equal (ZF is set or SF != OF)"</span><span class="Delimiter">);</span> <span id="L236" class="LineNr">236 </span> -<span id="L237" class="LineNr">237 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> -<span id="L238" class="LineNr">238 </span><span class="Normal">case</span> <span class="Constant">0x8e</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if SF or ZF</span> -<span id="L239" class="LineNr">239 </span> <span class="Normal">int8_t</span> offset = <a href='016jump_relative.cc.html#L23'>imm16</a><span class="Delimiter">();</span> -<span id="L240" class="LineNr">240 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF || SF != <a href='010core.cc.html#L33'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L241" class="LineNr">241 </span> <a href='003trace.cc.html#L160'>trace</a><span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010core.cc.html#L246'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L184'>end</a><span class="Delimiter">();</span> -<span id="L242" class="LineNr">242 </span> <a href='010core.cc.html#L23'>EIP</a> += offset<span class="Delimiter">;</span> -<span id="L243" class="LineNr">243 </span> <span class="Delimiter">}</span> -<span id="L244" class="LineNr">244 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> -<span id="L245" class="LineNr">245 </span><span class="Delimiter">}</span> -<span id="L246" class="LineNr">246 </span> -<span id="L247" class="LineNr">247 </span><span class="Delimiter">:(scenario jle_rel16_greater)</span> -<span id="L248" class="LineNr">248 </span><span class="Special">% ZF = false;</span> -<span id="L249" class="LineNr">249 </span><span class="Special">% SF = false;</span> -<span id="L250" class="LineNr">250 </span><span class="Special">% <a href='010core.cc.html#L33'>OF</a> = false;</span> -<span id="L251" class="LineNr">251 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> -<span id="L252" class="LineNr">252 </span> <span class="Constant">0f</span> 8e <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> -<span id="L253" class="LineNr">253 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> -<span id="L254" class="LineNr">254 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> -<span id="L255" class="LineNr">255 </span><span class="traceContains">+run: inst: 0x00000001</span> -<span id="L256" class="LineNr">256 </span><span class="traceContains">+run: inst: 0x00000005</span> -<span id="L257" class="LineNr">257 </span><span class="traceContains">+run: inst: 0x0000000a</span> -<span id="L258" class="LineNr">258 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L237" class="LineNr">237 </span><span class="Delimiter">:(scenario jle_rel8_equal)</span> +<span id="L238" class="LineNr">238 </span><span class="Special">% ZF = true;</span> +<span id="L239" class="LineNr">239 </span><span class="Special">% SF = false;</span> +<span id="L240" class="LineNr">240 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L241" class="LineNr">241 </span>== <span class="Constant">0x1</span> +<span id="L242" class="LineNr">242 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L243" class="LineNr">243 </span> 7e <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L244" class="LineNr">244 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L245" class="LineNr">245 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L246" class="LineNr">246 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L247" class="LineNr">247 </span><span class="traceContains">+run: jump 5</span> +<span id="L248" class="LineNr">248 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L249" class="LineNr">249 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L250" class="LineNr">250 </span> +<span id="L251" class="LineNr">251 </span><span class="Delimiter">:(scenario jle_rel8_lesser)</span> +<span id="L252" class="LineNr">252 </span><span class="Special">% ZF = false;</span> +<span id="L253" class="LineNr">253 </span><span class="Special">% SF = true;</span> +<span id="L254" class="LineNr">254 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L255" class="LineNr">255 </span>== <span class="Constant">0x1</span> +<span id="L256" class="LineNr">256 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L257" class="LineNr">257 </span> 7e <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L258" class="LineNr">258 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L259" class="LineNr">259 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L260" class="LineNr">260 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L261" class="LineNr">261 </span><span class="traceContains">+run: jump 5</span> +<span id="L262" class="LineNr">262 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L263" class="LineNr">263 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L264" class="LineNr">264 </span> +<span id="L265" class="LineNr">265 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L266" class="LineNr">266 </span><span class="Normal">case</span> <span class="Constant">0x7e</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8 if SF or ZF</span> +<span id="L267" class="LineNr">267 </span> <span class="Normal">int8_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int</span>><span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">());</span> +<span id="L268" class="LineNr">268 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF || SF != <a href='010vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L269" class="LineNr">269 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L270" class="LineNr">270 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L271" class="LineNr">271 </span> <span class="Delimiter">}</span> +<span id="L272" class="LineNr">272 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L273" class="LineNr">273 </span><span class="Delimiter">}</span> +<span id="L274" class="LineNr">274 </span> +<span id="L275" class="LineNr">275 </span><span class="Delimiter">:(scenario jle_rel8_greater)</span> +<span id="L276" class="LineNr">276 </span><span class="Special">% ZF = false;</span> +<span id="L277" class="LineNr">277 </span><span class="Special">% SF = false;</span> +<span id="L278" class="LineNr">278 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L279" class="LineNr">279 </span>== <span class="Constant">0x1</span> +<span id="L280" class="LineNr">280 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L281" class="LineNr">281 </span> 7e <span class="PreProc">0</span><span class="Constant">5</span> <span class="Comment"># skip 1 instruction</span> +<span id="L282" class="LineNr">282 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L283" class="LineNr">283 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L284" class="LineNr">284 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L285" class="LineNr">285 </span><span class="traceContains">+run: inst: 0x00000003</span> +<span id="L286" class="LineNr">286 </span><span class="traceContains">+run: inst: 0x00000008</span> +<span id="L287" class="LineNr">287 </span><span class="traceAbsent">-run: jump 5</span> </pre> </body> </html> diff --git a/html/subx/017jump_relative.cc.html b/html/subx/017jump_relative.cc.html new file mode 100644 index 00000000..6acad3f0 --- /dev/null +++ b/html/subx/017jump_relative.cc.html @@ -0,0 +1,360 @@ +<!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 - subx/017jump_relative.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.Special { color: #c00000; } +.SalientComment { color: #00ffff; } +.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; } +.traceContains { color: #008000; } +.traceAbsent { color: #c00000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: jump to 16-bit offset</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="SalientComment">//:: jump</span> +<span id="L4" class="LineNr"> 4 </span> +<span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L6" class="LineNr"> 6 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"e9"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away"</span><span class="Delimiter">);</span> +<span id="L7" class="LineNr"> 7 </span> +<span id="L8" class="LineNr"> 8 </span><span class="Delimiter">:(scenario jump_rel16)</span> +<span id="L9" class="LineNr"> 9 </span>== <span class="Constant">0x1</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L11" class="LineNr"> 11 </span> e9 <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L12" class="LineNr"> 12 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L13" class="LineNr"> 13 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L14" class="LineNr"> 14 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L15" class="LineNr"> 15 </span><span class="traceContains">+run: jump 5</span> +<span id="L16" class="LineNr"> 16 </span><span class="traceContains">+run: inst: 0x00000009</span> +<span id="L17" class="LineNr"> 17 </span><span class="traceAbsent">-run: inst: 0x00000003</span> +<span id="L18" class="LineNr"> 18 </span> +<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L20" class="LineNr"> 20 </span><span class="Normal">case</span> <span class="Constant">0xe9</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel8</span> +<span id="L21" class="LineNr"> 21 </span> <span class="Normal">int16_t</span> offset = <a href='017jump_relative.cc.html#L27'>imm16</a><span class="Delimiter">();</span> +<span id="L22" class="LineNr"> 22 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << offset << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L23" class="LineNr"> 23 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<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 class="Delimiter">:(code)</span> +<span id="L27" class="LineNr"> 27 </span><span class="Normal">int16_t</span> <a href='017jump_relative.cc.html#L27'>imm16</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Normal">int16_t</span> result = <a href='010vm.cc.html#L190'>next</a><span class="Delimiter">();</span> +<span id="L29" class="LineNr"> 29 </span> result |= <span class="Delimiter">(</span><a href='010vm.cc.html#L190'>next</a><span class="Delimiter">()</span><<<span class="Constant">8</span><span class="Delimiter">);</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L31" class="LineNr"> 31 </span><span class="Delimiter">}</span> +<span id="L32" class="LineNr"> 32 </span> +<span id="L33" class="LineNr"> 33 </span><span class="SalientComment">//:: jump if equal/zero</span> +<span id="L34" class="LineNr"> 34 </span> +<span id="L35" class="LineNr"> 35 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L36" class="LineNr"> 36 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"84"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if ZF is set"</span><span class="Delimiter">);</span> +<span id="L37" class="LineNr"> 37 </span> +<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(scenario je_rel16_success)</span> +<span id="L39" class="LineNr"> 39 </span><span class="Special">% ZF = true;</span> +<span id="L40" class="LineNr"> 40 </span>== <span class="Constant">0x1</span> +<span id="L41" class="LineNr"> 41 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Constant">0f</span> <span class="Constant">84</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L43" class="LineNr"> 43 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L44" class="LineNr"> 44 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L45" class="LineNr"> 45 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L46" class="LineNr"> 46 </span><span class="traceContains">+run: jump 5</span> +<span id="L47" class="LineNr"> 47 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L48" class="LineNr"> 48 </span><span class="traceAbsent">-run: inst: 0x00000005</span> +<span id="L49" class="LineNr"> 49 </span> +<span id="L50" class="LineNr"> 50 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> +<span id="L51" class="LineNr"> 51 </span><span class="Normal">case</span> <span class="Constant">0x84</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if ZF</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Normal">int8_t</span> offset = <a href='017jump_relative.cc.html#L27'>imm16</a><span class="Delimiter">();</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L54" class="LineNr"> 54 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L55" class="LineNr"> 55 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L56" class="LineNr"> 56 </span> <span class="Delimiter">}</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L58" class="LineNr"> 58 </span><span class="Delimiter">}</span> +<span id="L59" class="LineNr"> 59 </span> +<span id="L60" class="LineNr"> 60 </span><span class="Delimiter">:(scenario je_rel16_fail)</span> +<span id="L61" class="LineNr"> 61 </span><span class="Special">% ZF = false;</span> +<span id="L62" class="LineNr"> 62 </span>== <span class="Constant">0x1</span> +<span id="L63" class="LineNr"> 63 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L64" class="LineNr"> 64 </span> <span class="Constant">0f</span> <span class="Constant">84</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L65" class="LineNr"> 65 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L66" class="LineNr"> 66 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L67" class="LineNr"> 67 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L68" class="LineNr"> 68 </span><span class="traceContains">+run: inst: 0x00000005</span> +<span id="L69" class="LineNr"> 69 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L70" class="LineNr"> 70 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L71" class="LineNr"> 71 </span> +<span id="L72" class="LineNr"> 72 </span><span class="SalientComment">//:: jump if not equal/not zero</span> +<span id="L73" class="LineNr"> 73 </span> +<span id="L74" class="LineNr"> 74 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L75" class="LineNr"> 75 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"85"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if ZF is not set"</span><span class="Delimiter">);</span> +<span id="L76" class="LineNr"> 76 </span> +<span id="L77" class="LineNr"> 77 </span><span class="Delimiter">:(scenario jne_rel16_success)</span> +<span id="L78" class="LineNr"> 78 </span><span class="Special">% ZF = false;</span> +<span id="L79" class="LineNr"> 79 </span>== <span class="Constant">0x1</span> +<span id="L80" class="LineNr"> 80 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L81" class="LineNr"> 81 </span> <span class="Constant">0f</span> <span class="Constant">85</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L82" class="LineNr"> 82 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L83" class="LineNr"> 83 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L84" class="LineNr"> 84 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L85" class="LineNr"> 85 </span><span class="traceContains">+run: jump 5</span> +<span id="L86" class="LineNr"> 86 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L87" class="LineNr"> 87 </span><span class="traceAbsent">-run: inst: 0x00000005</span> +<span id="L88" class="LineNr"> 88 </span> +<span id="L89" class="LineNr"> 89 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> +<span id="L90" class="LineNr"> 90 </span><span class="Normal">case</span> <span class="Constant">0x85</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 unless ZF</span> +<span id="L91" class="LineNr"> 91 </span> <span class="Normal">int8_t</span> offset = <a href='017jump_relative.cc.html#L27'>imm16</a><span class="Delimiter">();</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L93" class="LineNr"> 93 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L94" class="LineNr"> 94 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Delimiter">}</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Identifier">break</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="Delimiter">:(scenario jne_rel16_fail)</span> +<span id="L100" class="LineNr">100 </span><span class="Special">% ZF = true;</span> +<span id="L101" class="LineNr">101 </span>== <span class="Constant">0x1</span> +<span id="L102" class="LineNr">102 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L103" class="LineNr">103 </span> <span class="Constant">0f</span> <span class="Constant">85</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L104" class="LineNr">104 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L105" class="LineNr">105 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L106" class="LineNr">106 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L107" class="LineNr">107 </span><span class="traceContains">+run: inst: 0x00000005</span> +<span id="L108" class="LineNr">108 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L109" class="LineNr">109 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L110" class="LineNr">110 </span> +<span id="L111" class="LineNr">111 </span><span class="SalientComment">//:: jump if greater</span> +<span id="L112" class="LineNr">112 </span> +<span id="L113" class="LineNr">113 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L114" class="LineNr">114 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if greater (ZF is unset, SF == OF)"</span><span class="Delimiter">);</span> +<span id="L115" class="LineNr">115 </span> +<span id="L116" class="LineNr">116 </span><span class="Delimiter">:(scenario jg_rel16_success)</span> +<span id="L117" class="LineNr">117 </span><span class="Special">% ZF = false;</span> +<span id="L118" class="LineNr">118 </span><span class="Special">% SF = false;</span> +<span id="L119" class="LineNr">119 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L120" class="LineNr">120 </span>== <span class="Constant">0x1</span> +<span id="L121" class="LineNr">121 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L122" class="LineNr">122 </span> <span class="Constant">0f</span> <span class="Constant">8f</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L123" class="LineNr">123 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L124" class="LineNr">124 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L125" class="LineNr">125 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L126" class="LineNr">126 </span><span class="traceContains">+run: jump 5</span> +<span id="L127" class="LineNr">127 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L128" class="LineNr">128 </span><span class="traceAbsent">-run: inst: 0x00000005</span> +<span id="L129" class="LineNr">129 </span> +<span id="L130" class="LineNr">130 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> +<span id="L131" class="LineNr">131 </span><span class="Normal">case</span> <span class="Constant">0x8f</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if !SF and !ZF</span> +<span id="L132" class="LineNr">132 </span> <span class="Normal">int8_t</span> offset = <a href='017jump_relative.cc.html#L27'>imm16</a><span class="Delimiter">();</span> +<span id="L133" class="LineNr">133 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!ZF && SF == <a href='010vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L134" class="LineNr">134 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L135" class="LineNr">135 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L136" class="LineNr">136 </span> <span class="Delimiter">}</span> +<span id="L137" class="LineNr">137 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L138" class="LineNr">138 </span><span class="Delimiter">}</span> +<span id="L139" class="LineNr">139 </span> +<span id="L140" class="LineNr">140 </span><span class="Delimiter">:(scenario jg_rel16_fail)</span> +<span id="L141" class="LineNr">141 </span><span class="Special">% ZF = false;</span> +<span id="L142" class="LineNr">142 </span><span class="Special">% SF = true;</span> +<span id="L143" class="LineNr">143 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L144" class="LineNr">144 </span>== <span class="Constant">0x1</span> +<span id="L145" class="LineNr">145 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L146" class="LineNr">146 </span> <span class="Constant">0f</span> <span class="Constant">8f</span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L147" class="LineNr">147 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L148" class="LineNr">148 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L149" class="LineNr">149 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L150" class="LineNr">150 </span><span class="traceContains">+run: inst: 0x00000005</span> +<span id="L151" class="LineNr">151 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L152" class="LineNr">152 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L153" class="LineNr">153 </span> +<span id="L154" class="LineNr">154 </span><span class="SalientComment">//:: jump if greater or equal</span> +<span id="L155" class="LineNr">155 </span> +<span id="L156" class="LineNr">156 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L157" class="LineNr">157 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8d"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if greater or equal (SF == OF)"</span><span class="Delimiter">);</span> +<span id="L158" class="LineNr">158 </span> +<span id="L159" class="LineNr">159 </span><span class="Delimiter">:(scenario jge_rel16_success)</span> +<span id="L160" class="LineNr">160 </span><span class="Special">% SF = false;</span> +<span id="L161" class="LineNr">161 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L162" class="LineNr">162 </span>== <span class="Constant">0x1</span> +<span id="L163" class="LineNr">163 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L164" class="LineNr">164 </span> <span class="Constant">0f</span> 8d <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L165" class="LineNr">165 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L166" class="LineNr">166 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L167" class="LineNr">167 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L168" class="LineNr">168 </span><span class="traceContains">+run: jump 5</span> +<span id="L169" class="LineNr">169 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L170" class="LineNr">170 </span><span class="traceAbsent">-run: inst: 0x00000005</span> +<span id="L171" class="LineNr">171 </span> +<span id="L172" class="LineNr">172 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> +<span id="L173" class="LineNr">173 </span><span class="Normal">case</span> <span class="Constant">0x8d</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if !SF</span> +<span id="L174" class="LineNr">174 </span> <span class="Normal">int8_t</span> offset = <a href='017jump_relative.cc.html#L27'>imm16</a><span class="Delimiter">();</span> +<span id="L175" class="LineNr">175 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF == <a href='010vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L176" class="LineNr">176 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L177" class="LineNr">177 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L178" class="LineNr">178 </span> <span class="Delimiter">}</span> +<span id="L179" class="LineNr">179 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L180" class="LineNr">180 </span><span class="Delimiter">}</span> +<span id="L181" class="LineNr">181 </span> +<span id="L182" class="LineNr">182 </span><span class="Delimiter">:(scenario jge_rel16_fail)</span> +<span id="L183" class="LineNr">183 </span><span class="Special">% SF = true;</span> +<span id="L184" class="LineNr">184 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L185" class="LineNr">185 </span>== <span class="Constant">0x1</span> +<span id="L186" class="LineNr">186 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L187" class="LineNr">187 </span> <span class="Constant">0f</span> 8d <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L188" class="LineNr">188 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L189" class="LineNr">189 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L190" class="LineNr">190 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L191" class="LineNr">191 </span><span class="traceContains">+run: inst: 0x00000005</span> +<span id="L192" class="LineNr">192 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L193" class="LineNr">193 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L194" class="LineNr">194 </span> +<span id="L195" class="LineNr">195 </span><span class="SalientComment">//:: jump if lesser</span> +<span id="L196" class="LineNr">196 </span> +<span id="L197" class="LineNr">197 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L198" class="LineNr">198 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8c"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if lesser (SF != OF)"</span><span class="Delimiter">);</span> +<span id="L199" class="LineNr">199 </span> +<span id="L200" class="LineNr">200 </span><span class="Delimiter">:(scenario jl_rel16_success)</span> +<span id="L201" class="LineNr">201 </span><span class="Special">% ZF = false;</span> +<span id="L202" class="LineNr">202 </span><span class="Special">% SF = true;</span> +<span id="L203" class="LineNr">203 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L204" class="LineNr">204 </span>== <span class="Constant">0x1</span> +<span id="L205" class="LineNr">205 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L206" class="LineNr">206 </span> <span class="Constant">0f</span> 8c <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L207" class="LineNr">207 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L208" class="LineNr">208 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L209" class="LineNr">209 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L210" class="LineNr">210 </span><span class="traceContains">+run: jump 5</span> +<span id="L211" class="LineNr">211 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L212" class="LineNr">212 </span><span class="traceAbsent">-run: inst: 0x00000005</span> +<span id="L213" class="LineNr">213 </span> +<span id="L214" class="LineNr">214 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> +<span id="L215" class="LineNr">215 </span><span class="Normal">case</span> <span class="Constant">0x8c</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if SF and !ZF</span> +<span id="L216" class="LineNr">216 </span> <span class="Normal">int8_t</span> offset = <a href='017jump_relative.cc.html#L27'>imm16</a><span class="Delimiter">();</span> +<span id="L217" class="LineNr">217 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>SF != <a href='010vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L218" class="LineNr">218 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L219" class="LineNr">219 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L220" class="LineNr">220 </span> <span class="Delimiter">}</span> +<span id="L221" class="LineNr">221 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L222" class="LineNr">222 </span><span class="Delimiter">}</span> +<span id="L223" class="LineNr">223 </span> +<span id="L224" class="LineNr">224 </span><span class="Delimiter">:(scenario jl_rel16_fail)</span> +<span id="L225" class="LineNr">225 </span><span class="Special">% ZF = false;</span> +<span id="L226" class="LineNr">226 </span><span class="Special">% SF = false;</span> +<span id="L227" class="LineNr">227 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L228" class="LineNr">228 </span>== <span class="Constant">0x1</span> +<span id="L229" class="LineNr">229 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L230" class="LineNr">230 </span> <span class="Constant">0f</span> 8c <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L231" class="LineNr">231 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L232" class="LineNr">232 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L233" class="LineNr">233 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L234" class="LineNr">234 </span><span class="traceContains">+run: inst: 0x00000005</span> +<span id="L235" class="LineNr">235 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L236" class="LineNr">236 </span><span class="traceAbsent">-run: jump 5</span> +<span id="L237" class="LineNr">237 </span> +<span id="L238" class="LineNr">238 </span><span class="SalientComment">//:: jump if lesser or equal</span> +<span id="L239" class="LineNr">239 </span> +<span id="L240" class="LineNr">240 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L241" class="LineNr">241 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> <span class="Constant">"8e"</span><span class="Delimiter">,</span> <span class="Constant">"jump disp16 bytes away if lesser or equal (ZF is set or SF != OF)"</span><span class="Delimiter">);</span> +<span id="L242" class="LineNr">242 </span> +<span id="L243" class="LineNr">243 </span><span class="Delimiter">:(scenario jle_rel16_equal)</span> +<span id="L244" class="LineNr">244 </span><span class="Special">% ZF = true;</span> +<span id="L245" class="LineNr">245 </span><span class="Special">% SF = false;</span> +<span id="L246" class="LineNr">246 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L247" class="LineNr">247 </span>== <span class="Constant">0x1</span> +<span id="L248" class="LineNr">248 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L249" class="LineNr">249 </span> <span class="Constant">0f</span> 8e <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L250" class="LineNr">250 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L251" class="LineNr">251 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L252" class="LineNr">252 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L253" class="LineNr">253 </span><span class="traceContains">+run: jump 5</span> +<span id="L254" class="LineNr">254 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L255" class="LineNr">255 </span><span class="traceAbsent">-run: inst: 0x00000005</span> +<span id="L256" class="LineNr">256 </span> +<span id="L257" class="LineNr">257 </span><span class="Delimiter">:(scenario jle_rel16_lesser)</span> +<span id="L258" class="LineNr">258 </span><span class="Special">% ZF = false;</span> +<span id="L259" class="LineNr">259 </span><span class="Special">% SF = true;</span> +<span id="L260" class="LineNr">260 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L261" class="LineNr">261 </span>== <span class="Constant">0x1</span> +<span id="L262" class="LineNr">262 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L263" class="LineNr">263 </span> <span class="Constant">0f</span> 8e <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L264" class="LineNr">264 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L265" class="LineNr">265 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L266" class="LineNr">266 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L267" class="LineNr">267 </span><span class="traceContains">+run: jump 5</span> +<span id="L268" class="LineNr">268 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L269" class="LineNr">269 </span><span class="traceAbsent">-run: inst: 0x00000005</span> +<span id="L270" class="LineNr">270 </span> +<span id="L271" class="LineNr">271 </span><span class="Delimiter">:(before "End Two-Byte Opcodes Starting With 0f")</span> +<span id="L272" class="LineNr">272 </span><span class="Normal">case</span> <span class="Constant">0x8e</span>: <span class="Delimiter">{</span> <span class="Comment">// jump rel16 if SF or ZF</span> +<span id="L273" class="LineNr">273 </span> <span class="Normal">int8_t</span> offset = <a href='017jump_relative.cc.html#L27'>imm16</a><span class="Delimiter">();</span> +<span id="L274" class="LineNr">274 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>ZF || SF != <a href='010vm.cc.html#L59'>OF</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L275" class="LineNr">275 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jump "</span> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L276" class="LineNr">276 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L277" class="LineNr">277 </span> <span class="Delimiter">}</span> +<span id="L278" class="LineNr">278 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L279" class="LineNr">279 </span><span class="Delimiter">}</span> +<span id="L280" class="LineNr">280 </span> +<span id="L281" class="LineNr">281 </span><span class="Delimiter">:(scenario jle_rel16_greater)</span> +<span id="L282" class="LineNr">282 </span><span class="Special">% ZF = false;</span> +<span id="L283" class="LineNr">283 </span><span class="Special">% SF = false;</span> +<span id="L284" class="LineNr">284 </span><span class="Special">% <a href='010vm.cc.html#L59'>OF</a> = false;</span> +<span id="L285" class="LineNr">285 </span>== <span class="Constant">0x1</span> +<span id="L286" class="LineNr">286 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L287" class="LineNr">287 </span> <span class="Constant">0f</span> 8e <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># skip 1 instruction</span> +<span id="L288" class="LineNr">288 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">1</span> +<span id="L289" class="LineNr">289 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">2</span> +<span id="L290" class="LineNr">290 </span><span class="traceContains">+run: inst: 0x00000001</span> +<span id="L291" class="LineNr">291 </span><span class="traceContains">+run: inst: 0x00000005</span> +<span id="L292" class="LineNr">292 </span><span class="traceContains">+run: inst: 0x0000000a</span> +<span id="L293" class="LineNr">293 </span><span class="traceAbsent">-run: jump 5</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/018functions.cc.html b/html/subx/018functions.cc.html new file mode 100644 index 00000000..3e9ceab1 --- /dev/null +++ b/html/subx/018functions.cc.html @@ -0,0 +1,155 @@ +<!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 - subx/018functions.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: 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'L'+lineNum; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">//:: call</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L4" class="LineNr"> 4 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"e8"</span><span class="Delimiter">,</span> <span class="Constant">"call disp32"</span><span class="Delimiter">);</span> +<span id="L5" class="LineNr"> 5 </span> +<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(scenario call_disp32)</span> +<span id="L7" class="LineNr"> 7 </span><span class="Special">% Reg[ESP].u = 0x64;</span> +<span id="L8" class="LineNr"> 8 </span>== <span class="Constant">0x1</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L10" class="LineNr">10 </span> e8 a0 <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># call function offset at 0x000000a0</span> +<span id="L11" class="LineNr">11 </span> <span class="Comment"># next EIP is 6</span> +<span id="L12" class="LineNr">12 </span><span class="traceContains">+run: call <a href='011run.cc.html#L253'>imm32</a> 0x000000a0</span> +<span id="L13" class="LineNr">13 </span><span class="traceContains">+run: decrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x00000060</span> +<span id="L14" class="LineNr">14 </span><span class="traceContains">+run: pushing value 0x00000006</span> +<span id="L15" class="LineNr">15 </span><span class="traceContains">+run: jumping to 0x000000a6</span> +<span id="L16" class="LineNr">16 </span> +<span id="L17" class="LineNr">17 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L18" class="LineNr">18 </span><span class="Normal">case</span> <span class="Constant">0xe8</span>: <span class="Delimiter">{</span> <span class="Comment">// call disp32 relative to next EIP</span> +<span id="L19" class="LineNr">19 </span> <span class="Normal">int32_t</span> offset = <a href='011run.cc.html#L253'>imm32</a><span class="Delimiter">();</span> +<span id="L20" class="LineNr">20 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call <a href='011run.cc.html#L253'>imm32</a> 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << offset << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L21" class="LineNr">21 </span> <a href='012direct_addressing.cc.html#L344'>push</a><span class="Delimiter">(</span><a href='010vm.cc.html#L29'>EIP</a><span class="Delimiter">);</span> +<span id="L22" class="LineNr">22 </span> <a href='010vm.cc.html#L29'>EIP</a> += offset<span class="Delimiter">;</span> +<span id="L23" class="LineNr">23 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << <a href='010vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L213'>end</a><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="Comment">//:</span> +<span id="L28" class="LineNr">28 </span> +<span id="L29" class="LineNr">29 </span><span class="Delimiter">:(scenario call_r32)</span> +<span id="L30" class="LineNr">30 </span><span class="Special">% Reg[ESP].u = 0x64;</span> +<span id="L31" class="LineNr">31 </span><span class="Special">% Reg[EBX].u = 0x000000a0;</span> +<span id="L32" class="LineNr">32 </span>== <span class="Constant">0x1</span> +<span id="L33" class="LineNr">33 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L34" class="LineNr">34 </span> ff d3 <span class="Comment"># call function offset at EBX</span> +<span id="L35" class="LineNr">35 </span> <span class="Comment"># next EIP is 3</span> +<span id="L36" class="LineNr">36 </span><span class="traceContains">+run: call to r/m32</span> +<span id="L37" class="LineNr">37 </span><span class="traceContains">+run: r/m32 is <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L38" class="LineNr">38 </span><span class="traceContains">+run: decrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x00000060</span> +<span id="L39" class="LineNr">39 </span><span class="traceContains">+run: pushing value 0x00000003</span> +<span id="L40" class="LineNr">40 </span><span class="traceContains">+run: jumping to 0x000000a3</span> +<span id="L41" class="LineNr">41 </span> +<span id="L42" class="LineNr">42 </span><span class="Delimiter">:(before "End Op ff Subops")</span> +<span id="L43" class="LineNr">43 </span><span class="Normal">case</span> <span class="Constant">2</span>: <span class="Delimiter">{</span> <span class="Comment">// call function pointer at r/m32</span> +<span id="L44" class="LineNr">44 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"call to r/m32"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L45" class="LineNr">45 </span> <span class="Normal">int32_t</span>* offset = <a href='012direct_addressing.cc.html#L31'>effective_address</a><span class="Delimiter">(</span>modrm<span class="Delimiter">);</span> +<span id="L46" class="LineNr">46 </span> <a href='012direct_addressing.cc.html#L344'>push</a><span class="Delimiter">(</span><a href='010vm.cc.html#L29'>EIP</a><span class="Delimiter">);</span> +<span id="L47" class="LineNr">47 </span> <a href='010vm.cc.html#L29'>EIP</a> += *offset<span class="Delimiter">;</span> +<span id="L48" class="LineNr">48 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << <a href='010vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L49" class="LineNr">49 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L50" class="LineNr">50 </span><span class="Delimiter">}</span> +<span id="L51" class="LineNr">51 </span> +<span id="L52" class="LineNr">52 </span><span class="Delimiter">:(scenario call_mem_at_r32)</span> +<span id="L53" class="LineNr">53 </span><span class="Special">% Reg[ESP].u = 0x64;</span> +<span id="L54" class="LineNr">54 </span><span class="Special">% Reg[EBX].u = 0x10;</span> +<span id="L55" class="LineNr">55 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L56" class="LineNr">56 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L57" class="LineNr">57 </span> ff <span class="Constant">13</span> <span class="Comment"># call function offset at *EBX</span> +<span id="L58" class="LineNr">58 </span> <span class="Comment"># next EIP is 3</span> +<span id="L59" class="LineNr">59 </span>== <span class="Constant">0x10</span> <span class="Comment"># data segment</span> +<span id="L60" class="LineNr">60 </span>a0 <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0xa0</span> +<span id="L61" class="LineNr">61 </span><span class="traceContains">+run: call to r/m32</span> +<span id="L62" class="LineNr">62 </span><span class="traceContains">+run: effective address is 0x10 (EBX)</span> +<span id="L63" class="LineNr">63 </span><span class="traceContains">+run: decrementing <a href='010vm.cc.html#L17'>ESP</a> to 0x00000060</span> +<span id="L64" class="LineNr">64 </span><span class="traceContains">+run: pushing value 0x00000003</span> +<span id="L65" class="LineNr">65 </span><span class="traceContains">+run: jumping to 0x000000a3</span> +<span id="L66" class="LineNr">66 </span> +<span id="L67" class="LineNr">67 </span><span class="SalientComment">//:: ret</span> +<span id="L68" class="LineNr">68 </span> +<span id="L69" class="LineNr">69 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L70" class="LineNr">70 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"c3"</span><span class="Delimiter">,</span> <span class="Constant">"return from most recent unfinished call"</span><span class="Delimiter">);</span> +<span id="L71" class="LineNr">71 </span> +<span id="L72" class="LineNr">72 </span><span class="Delimiter">:(scenario ret)</span> +<span id="L73" class="LineNr">73 </span><span class="Special">% Reg[ESP].u = 0x60;</span> +<span id="L74" class="LineNr">74 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L75" class="LineNr">75 </span><span class="Comment"># op ModR/M SIB displacement immediate</span> +<span id="L76" class="LineNr">76 </span> c3 +<span id="L77" class="LineNr">77 </span>== <span class="Constant">0x60</span> <span class="Comment"># data segment</span> +<span id="L78" class="LineNr">78 </span><span class="Constant">10</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="PreProc">0</span><span class="Constant">0</span> <span class="Comment"># 0x10</span> +<span id="L79" class="LineNr">79 </span><span class="traceContains">+run: return</span> +<span id="L80" class="LineNr">80 </span><span class="traceContains">+run: popping value 0x00000010</span> +<span id="L81" class="LineNr">81 </span><span class="traceContains">+run: jumping to 0x00000010</span> +<span id="L82" class="LineNr">82 </span> +<span id="L83" class="LineNr">83 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</span> +<span id="L84" class="LineNr">84 </span><span class="Normal">case</span> <span class="Constant">0xc3</span>: <span class="Delimiter">{</span> <span class="Comment">// return from a call</span> +<span id="L85" class="LineNr">85 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"return"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L86" class="LineNr">86 </span> <a href='010vm.cc.html#L29'>EIP</a> = <a href='012direct_addressing.cc.html#L390'>pop</a><span class="Delimiter">();</span> +<span id="L87" class="LineNr">87 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"jumping to 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << <a href='010vm.cc.html#L29'>EIP</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L88" class="LineNr">88 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L89" class="LineNr">89 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/019syscalls.cc.html b/html/subx/019syscalls.cc.html new file mode 100644 index 00000000..72db7525 --- /dev/null +++ b/html/subx/019syscalls.cc.html @@ -0,0 +1,98 @@ +<!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 - subx/019syscalls.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.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; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Delimiter">:(before "End Initialize Op Names(name)")</span> +<span id="L2" class="LineNr"> 2 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> <span class="Constant">"cd"</span><span class="Delimiter">,</span> <span class="Constant">"software interrupt"</span><span class="Delimiter">);</span> +<span id="L3" class="LineNr"> 3 </span> +<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(before "End Single-Byte Opcodes")</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#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">90</span><span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"syscall"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L7" class="LineNr"> 7 </span> <span class="Normal">uint8_t</span> code = <a href='010vm.cc.html#L190'>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#L196'>raise</a> << <span class="Constant">"Unimplemented interrupt code "</span> << <a href='010vm.cc.html#L227'>HEXBYTE</a> << code << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L10" class="LineNr">10 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">" Only `int 80h` supported for now.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>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> +<span id="L13" class="LineNr">13 </span> <a href='019syscalls.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> <a href='019syscalls.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="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> Reg[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>Reg[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#L117'>mem_addr_u8</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span>Reg[EDX]<span class="Delimiter">.</span>u<span class="Delimiter">);</span> +<span id="L25" class="LineNr">25 </span> <span class="Identifier">break</span><span class="Delimiter">;</span> +<span id="L26" class="LineNr">26 </span> <span class="Normal">case</span> <span class="Constant">4</span>: +<span id="L27" class="LineNr">27 </span> Reg[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>Reg[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#L117'>mem_addr_u8</a><span class="Delimiter">(</span>Reg[ECX]<span class="Delimiter">.</span>u<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">size</span><span class="Comment">*/</span>Reg[EDX]<span class="Delimiter">.</span>u<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">default</span>: +<span id="L30" class="LineNr">30 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='010vm.cc.html#L228'>HEXWORD</a> << <a href='010vm.cc.html#L29'>EIP</a> << <span class="Constant">": unimplemented syscall "</span> << Reg[EAX]<span class="Delimiter">.</span>u << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L31" class="LineNr">31 </span> <span class="Delimiter">}</span> +<span id="L32" class="LineNr">32 </span><span class="Delimiter">}</span> +<span id="L33" class="LineNr">33 </span> +<span id="L34" class="LineNr">34 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L35" class="LineNr">35 </span><span class="Comment">#include <unistd.h></span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/020elf.cc.html b/html/subx/020elf.cc.html index b346296e..68de155d 100644 --- a/html/subx/020elf.cc.html +++ b/html/subx/020elf.cc.html @@ -16,14 +16,12 @@ a { color:#eeeeee; text-decoration: none; } a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .Constant { color: #00a0a0; } -.PreProc { color: #800080; } .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; } -.Todo { color: #000000; background-color: #ffff00; padding-bottom: 1px; } .cSpecial { color: #008000; } --> </style> @@ -59,79 +57,148 @@ if ('onhashchange' in window) { </head> <body onload='JumpToLine();'> <pre id='vimCodeElement'> -<span id="L1" class="LineNr"> 1 </span><span class="Comment">// <a href="https://github.com/kragen/stoneknifeforth/blob/702d2ebe1b/386.c">https://github.com/kragen/stoneknifeforth/blob/702d2ebe1b/386.c</a></span> -<span id="L2" class="LineNr"> 2 </span> -<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(before "End Main")</span> -<span id="L4" class="LineNr"> 4 </span>assert<span class="Delimiter">(</span>argc > <span class="Constant">1</span><span class="Delimiter">);</span> -<span id="L5" class="LineNr"> 5 </span><a href='000organization.cc.html#L139'>reset</a><span class="Delimiter">();</span> -<span id="L6" class="LineNr"> 6 </span><a href='020elf.cc.html#L11'>load_elf</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">);</span> -<span id="L7" class="LineNr"> 7 </span><span class="Normal">while</span> <span class="Delimiter">(</span><a href='010core.cc.html#L23'>EIP</a> < <a href='010core.cc.html#L68'>End_of_program</a><span class="Delimiter">)</span> -<span id="L8" class="LineNr"> 8 </span> <a href='010core.cc.html#L109'>run_one_instruction</a><span class="Delimiter">();</span> -<span id="L9" class="LineNr"> 9 </span> -<span id="L10" class="LineNr">10 </span><span class="Delimiter">:(code)</span> -<span id="L11" class="LineNr">11 </span><span class="Normal">void</span> <a href='020elf.cc.html#L11'>load_elf</a><span class="Delimiter">(</span><span class="Normal">const</span> string& filename<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L12" class="LineNr">12 </span> <span class="Normal">int</span> fd = open<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> O_RDONLY<span class="Delimiter">);</span> -<span id="L13" class="LineNr">13 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>fd < <span class="Constant">0</span><span class="Delimiter">)</span> <a href='020elf.cc.html#L55'>die</a><span class="Delimiter">(</span><span class="Constant">"</span><span class="cSpecial">%s</span><span class="Constant">: open"</span><span class="Delimiter">,</span> filename<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span> -<span id="L14" class="LineNr">14 </span> <span class="Normal">off_t</span> size = lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_END</span><span class="Delimiter">);</span> -<span id="L15" class="LineNr">15 </span> lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_SET</span><span class="Delimiter">);</span> -<span id="L16" class="LineNr">16 </span> <span class="Normal">uint8_t</span>* elf_contents = <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span>malloc<span class="Delimiter">(</span>size<span class="Delimiter">));</span> -<span id="L17" class="LineNr">17 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents == <span class="Constant">NULL</span><span class="Delimiter">)</span> <a href='020elf.cc.html#L55'>die</a><span class="Delimiter">(</span><span class="Constant">"malloc(</span><span class="cSpecial">%d</span><span class="Constant">)"</span><span class="Delimiter">,</span> size<span class="Delimiter">);</span> -<span id="L18" class="LineNr">18 </span> <span class="Normal">ssize_t</span> read_size = read<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">);</span> -<span id="L19" class="LineNr">19 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size != read_size<span class="Delimiter">)</span> <a href='020elf.cc.html#L55'>die</a><span class="Delimiter">(</span><span class="Constant">"read → </span><span class="cSpecial">%d</span><span class="Constant"> (!= </span><span class="cSpecial">%d</span><span class="Constant">)"</span><span class="Delimiter">,</span> size<span class="Delimiter">,</span> read_size<span class="Delimiter">);</span> -<span id="L20" class="LineNr">20 </span> <a href='020elf.cc.html#L24'>load_elf_contents</a><span class="Delimiter">(</span>elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">);</span> -<span id="L21" class="LineNr">21 </span> free<span class="Delimiter">(</span>elf_contents<span class="Delimiter">);</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="Normal">void</span> <a href='020elf.cc.html#L24'>load_elf_contents</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">size_t</span> length<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L25" class="LineNr">25 </span> <span class="Normal">uint8_t</span> magic[<span class="Constant">5</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span> -<span id="L26" class="LineNr">26 </span> memcpy<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> -<span id="L27" class="LineNr">27 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Constant">0</span> != memcmp<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\177</span><span class="Constant">ELF"</span><span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">))</span> -<span id="L28" class="LineNr">28 </span> <a href='020elf.cc.html#L55'>die</a><span class="Delimiter">(</span><span class="Constant">"Invalid ELF file starting with </span><span class="cSpecial">\"</span><span class="cSpecial">%s</span><span class="cSpecial">\"</span><span class="Constant">"</span><span class="Delimiter">,</span> magic<span class="Delimiter">);</span> -<span id="L29" class="LineNr">29 </span> -<span id="L30" class="LineNr">30 </span> <span class="Normal">uint32_t</span> e_type = <a href='020elf.cc.html#L51'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">16</span>]<span class="Delimiter">);</span> -<span id="L31" class="LineNr">31 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Constant">0x00030002</span> != e_type<span class="Delimiter">)</span> -<span id="L32" class="LineNr">32 </span> <a href='020elf.cc.html#L55'>die</a><span class="Delimiter">(</span><span class="Constant">"ELF type/machine 0x</span><span class="cSpecial">%x</span><span class="Constant"> isn't i386 executable"</span><span class="Delimiter">,</span> e_type<span class="Delimiter">);</span> -<span id="L33" class="LineNr">33 </span> -<span id="L34" class="LineNr">34 </span> <span class="Normal">uint32_t</span> e_entry = <a href='020elf.cc.html#L51'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">24</span>]<span class="Delimiter">);</span> -<span id="L35" class="LineNr">35 </span> <span class="Normal">uint32_t</span> e_phoff = <a href='020elf.cc.html#L51'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">28</span>]<span class="Delimiter">);</span> -<span id="L36" class="LineNr">36 </span> <span class="Normal">uint32_t</span> p_vaddr = <a href='020elf.cc.html#L51'>u32_in</a><span class="Delimiter">(</span>&elf_contents[e_phoff + <span class="Constant">8</span>]<span class="Delimiter">);</span> -<span id="L37" class="LineNr">37 </span> <span class="Normal">uint32_t</span> p_memsz = <a href='020elf.cc.html#L51'>u32_in</a><span class="Delimiter">(</span>&elf_contents[e_phoff + <span class="Constant">20</span>]<span class="Delimiter">);</span> -<span id="L38" class="LineNr">38 </span> -<span id="L39" class="LineNr">39 </span> <a href='010core.cc.html#L67'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span>p_memsz<span class="Delimiter">);</span> <span class="Comment">// </span><span class="Todo">TODO</span><span class="Comment">: not sure if this should be + p_vaddr</span> -<span id="L40" class="LineNr">40 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>length > p_memsz - p_vaddr<span class="Delimiter">)</span> length = p_memsz - p_vaddr<span class="Delimiter">;</span> -<span id="L41" class="LineNr">41 </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 < length<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> -<span id="L42" class="LineNr">42 </span> <a href='010core.cc.html#L67'>Mem</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>p_vaddr + i<span class="Delimiter">)</span> = elf_contents[i]<span class="Delimiter">;</span> -<span id="L43" class="LineNr">43 </span> <a href='010core.cc.html#L68'>End_of_program</a> = p_memsz<span class="Delimiter">;</span> -<span id="L44" class="LineNr">44 </span> -<span id="L45" class="LineNr">45 </span> <span class="Comment">// </span><span class="Todo">TODO</span><span class="Comment">: need to set up real stack somewhere</span> -<span id="L46" class="LineNr">46 </span> -<span id="L47" class="LineNr">47 </span> Reg[ESP]<span class="Delimiter">.</span>u = Reg[EBP]<span class="Delimiter">.</span>u = <a href='010core.cc.html#L68'>End_of_program</a><span class="Delimiter">;</span> -<span id="L48" class="LineNr">48 </span> <a href='010core.cc.html#L23'>EIP</a> = e_entry<span class="Delimiter">;</span> -<span id="L49" class="LineNr">49 </span><span class="Delimiter">}</span> -<span id="L50" class="LineNr">50 </span> -<span id="L51" class="LineNr">51 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span> <a href='020elf.cc.html#L51'>u32_in</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* p<span class="Delimiter">)</span> <span class="Delimiter">{</span> -<span id="L52" class="LineNr">52 </span> <span class="Identifier">return</span> p[<span class="Constant">0</span>] | p[<span class="Constant">1</span>] << <span class="Constant">8</span> | p[<span class="Constant">2</span>] << <span class="Constant">16</span> | p[<span class="Constant">3</span>] << <span class="Constant">24</span><span class="Delimiter">;</span> -<span id="L53" class="LineNr">53 </span><span class="Delimiter">}</span> -<span id="L54" class="LineNr">54 </span> -<span id="L55" class="LineNr">55 </span><span class="Normal">void</span> <a href='020elf.cc.html#L55'>die</a><span class="Delimiter">(</span><span class="Normal">const</span> <span class="Normal">char</span>* format<span class="Delimiter">,</span> <span class="Delimiter">...)</span> <span class="Delimiter">{</span> -<span id="L56" class="LineNr">56 </span> <span class="Normal">va_list</span> args<span class="Delimiter">;</span> -<span id="L57" class="LineNr">57 </span> va_start<span class="Delimiter">(</span>args<span class="Delimiter">,</span> format<span class="Delimiter">);</span> -<span id="L58" class="LineNr">58 </span> vfprintf<span class="Delimiter">(</span><span class="Constant">stderr</span><span class="Delimiter">,</span> format<span class="Delimiter">,</span> args<span class="Delimiter">);</span> -<span id="L59" class="LineNr">59 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>errno<span class="Delimiter">)</span> -<span id="L60" class="LineNr">60 </span> perror<span class="Delimiter">(</span><span class="Constant">"<200c>"</span><span class="Delimiter">);</span> -<span id="L61" class="LineNr">61 </span> <span class="Normal">else</span> -<span id="L62" class="LineNr">62 </span> fprintf<span class="Delimiter">(</span><span class="Constant">stderr</span><span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">);</span> -<span id="L63" class="LineNr">63 </span> va_end<span class="Delimiter">(</span>args<span class="Delimiter">);</span> -<span id="L64" class="LineNr">64 </span> abort<span class="Delimiter">();</span> -<span id="L65" class="LineNr">65 </span><span class="Delimiter">}</span> -<span id="L66" class="LineNr">66 </span> -<span id="L67" class="LineNr">67 </span><span class="Delimiter">:(before "End Types")</span> -<span id="L68" class="LineNr">68 </span><span class="PreProc">#include </span><span class="Constant"><sys/types.h></span> -<span id="L69" class="LineNr">69 </span><span class="PreProc">#include </span><span class="Constant"><sys/stat.h></span> -<span id="L70" class="LineNr">70 </span><span class="PreProc">#include </span><span class="Constant"><fcntl.h></span> -<span id="L71" class="LineNr">71 </span><span class="PreProc">#include </span><span class="Constant"><unistd.h></span> -<span id="L72" class="LineNr">72 </span><span class="PreProc">#include </span><span class="Constant"><stdarg.h></span> -<span id="L73" class="LineNr">73 </span><span class="PreProc">#include </span><span class="Constant"><errno.h></span> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">// Helper for debugging and testing.</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">// Based on <a href="https://github.com/kragen/stoneknifeforth/blob/702d2ebe1b/386.c">https://github.com/kragen/stoneknifeforth/blob/702d2ebe1b/386.c</a></span> +<span id="L3" class="LineNr"> 3 </span> +<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(before "End Main")</span> +<span id="L5" class="LineNr"> 5 </span>assert<span class="Delimiter">(</span>argc > <span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L6" class="LineNr"> 6 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"run"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L7" class="LineNr"> 7 </span> <a href='003trace.cc.html#L236'>START_TRACING_UNTIL_END_OF_SCOPE</a><span class="Delimiter">;</span> +<span id="L8" class="LineNr"> 8 </span> assert<span class="Delimiter">(</span>argc > <span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L9" class="LineNr"> 9 </span> <a href='000organization.cc.html#L148'>reset</a><span class="Delimiter">();</span> +<span id="L10" class="LineNr"> 10 </span> cerr << std::hex<span class="Delimiter">;</span> +<span id="L11" class="LineNr"> 11 </span> <a href='020elf.cc.html#L108'>initialize_mem</a><span class="Delimiter">();</span> +<span id="L12" class="LineNr"> 12 </span> <a href='010vm.cc.html#L94'>Mem_offset</a> = <a href='020elf.cc.html#L104'>CODE_START</a><span class="Delimiter">;</span> +<span id="L13" class="LineNr"> 13 </span> <a href='020elf.cc.html#L21'>load_elf</a><span class="Delimiter">(</span>argv[<span class="Constant">2</span>]<span class="Delimiter">);</span> +<span id="L14" class="LineNr"> 14 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='010vm.cc.html#L29'>EIP</a> < <a href='010vm.cc.html#L95'>End_of_program</a><span class="Delimiter">)</span> <span class="Comment">// weak final-gasp termination check</span> +<span id="L15" class="LineNr"> 15 </span> <a href='010vm.cc.html#L147'>run_one_instruction</a><span class="Delimiter">();</span> +<span id="L16" class="LineNr"> 16 </span> <a href='003trace.cc.html#L192'>dbg</a> << <span class="Constant">"executed past <a href='003trace.cc.html#L213'>end</a> of the world: "</span> << <a href='010vm.cc.html#L29'>EIP</a> << <span class="Constant">" vs "</span> << <a href='010vm.cc.html#L95'>End_of_program</a> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L17" class="LineNr"> 17 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L18" class="LineNr"> 18 </span><span class="Delimiter">}</span> +<span id="L19" class="LineNr"> 19 </span> +<span id="L20" class="LineNr"> 20 </span><span class="Delimiter">:(code)</span> +<span id="L21" class="LineNr"> 21 </span><span class="Normal">void</span> <a href='020elf.cc.html#L21'>load_elf</a><span class="Delimiter">(</span><span class="Normal">const</span> string& filename<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L22" class="LineNr"> 22 </span> <span class="Normal">int</span> fd = open<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> O_RDONLY<span class="Delimiter">);</span> +<span id="L23" class="LineNr"> 23 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>fd < <span class="Constant">0</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L196'>raise</a> << filename<span class="Delimiter">.</span>c_str<span class="Delimiter">()</span> << <span class="Constant">": open"</span> << <a href='020elf.cc.html#L121'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Normal">off_t</span> size = lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_END</span><span class="Delimiter">);</span> +<span id="L25" class="LineNr"> 25 </span> lseek<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">SEEK_SET</span><span class="Delimiter">);</span> +<span id="L26" class="LineNr"> 26 </span> <span class="Normal">uint8_t</span>* elf_contents = <span class="Normal">static_cast</span><<span class="Normal">uint8_t</span>*><span class="Delimiter">(</span>malloc<span class="Delimiter">(</span>size<span class="Delimiter">));</span> +<span id="L27" class="LineNr"> 27 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents == <span class="Constant">NULL</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"malloc("</span> << size << <span class="Constant">')'</span> << <a href='020elf.cc.html#L121'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Normal">ssize_t</span> read_size = read<span class="Delimiter">(</span>fd<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">);</span> +<span id="L29" class="LineNr"> 29 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size != read_size<span class="Delimiter">)</span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"read → "</span> << size << <span class="Constant">" (!= "</span> << read_size << <span class="Constant">')'</span> << <a href='020elf.cc.html#L121'>perr</a><span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L30" class="LineNr"> 30 </span> <a href='020elf.cc.html#L34'>load_elf_contents</a><span class="Delimiter">(</span>elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">);</span> +<span id="L31" class="LineNr"> 31 </span> free<span class="Delimiter">(</span>elf_contents<span class="Delimiter">);</span> +<span id="L32" class="LineNr"> 32 </span><span class="Delimiter">}</span> +<span id="L33" class="LineNr"> 33 </span> +<span id="L34" class="LineNr"> 34 </span><span class="Normal">void</span> <a href='020elf.cc.html#L34'>load_elf_contents</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">size_t</span> size<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">uint8_t</span> magic[<span class="Constant">5</span>] = <span class="Delimiter">{</span><span class="Constant">0</span><span class="Delimiter">};</span> +<span id="L36" class="LineNr"> 36 </span> memcpy<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> elf_contents<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>memcmp<span class="Delimiter">(</span>magic<span class="Delimiter">,</span> <span class="Constant">"</span><span class="cSpecial">\177</span><span class="Constant">ELF"</span><span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> +<span id="L38" class="LineNr"> 38 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Invalid ELF file; starts with </span><span class="cSpecial">\"</span><span class="Constant">"</span> << magic << <span class="Constant">'"'</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L39" class="LineNr"> 39 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents[<span class="Constant">4</span>] != <span class="Constant">1</span><span class="Delimiter">)</span> +<span id="L40" class="LineNr"> 40 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Only 32-bit ELF files (4-byte words; virtual addresses up to 4GB) supported.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L41" class="LineNr"> 41 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>elf_contents[<span class="Constant">5</span>] != <span class="Constant">1</span><span class="Delimiter">)</span> +<span id="L42" class="LineNr"> 42 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Only little-endian ELF files supported.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Comment">// unused: remaining 10 bytes of e_ident</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Normal">uint32_t</span> e_machine_type = <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">16</span>]<span class="Delimiter">);</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_machine_type != <span class="Constant">0x00030002</span><span class="Delimiter">)</span> +<span id="L46" class="LineNr"> 46 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"ELF type/machine 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << e_machine_type << <span class="Constant">" isn't i386 executable</span><span class="cSpecial">\n</span><span class="Constant">"</span> << die<span class="Delimiter">();</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Comment">// unused: e_version. We only support version 1, and later versions will be backwards compatible.</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Normal">uint32_t</span> e_entry = <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">24</span>]<span class="Delimiter">);</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Normal">uint32_t</span> e_phoff = <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">28</span>]<span class="Delimiter">);</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Comment">// unused: e_shoff</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Comment">// unused: e_flags</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Normal">uint32_t</span> e_ehsize = <a href='020elf.cc.html#L116'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">40</span>]<span class="Delimiter">);</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize < <span class="Constant">52</span><span class="Delimiter">)</span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Invalid binary; ELF header too small</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Normal">uint32_t</span> e_phentsize = <a href='020elf.cc.html#L116'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">42</span>]<span class="Delimiter">);</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Normal">uint32_t</span> e_phnum = <a href='020elf.cc.html#L116'>u16_in</a><span class="Delimiter">(</span>&elf_contents[<span class="Constant">44</span>]<span class="Delimiter">);</span> +<span id="L56" class="LineNr"> 56 </span> <a href='003trace.cc.html#L192'>dbg</a> << e_phnum << <span class="Constant">" entries in the <a href='011run.cc.html#L94'>program</a> header, each "</span> << e_phentsize << <span class="Constant">" bytes long"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Comment">// unused: e_shentsize</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Comment">// unused: e_shnum</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Comment">// unused: e_shstrndx</span> +<span id="L60" class="LineNr"> 60 </span> +<span id="L61" class="LineNr"> 61 </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 < e_phnum<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> +<span id="L62" class="LineNr"> 62 </span> <a href='020elf.cc.html#L70'>load_segment_from_program_header</a><span class="Delimiter">(</span>elf_contents<span class="Delimiter">,</span> size<span class="Delimiter">,</span> e_phoff + i*e_phentsize<span class="Delimiter">,</span> e_ehsize<span class="Delimiter">);</span> +<span id="L63" class="LineNr"> 63 </span> +<span id="L64" class="LineNr"> 64 </span> <span class="Comment">// initialize code and stack</span> +<span id="L65" class="LineNr"> 65 </span> Reg[ESP]<span class="Delimiter">.</span>u = <a href='020elf.cc.html#L106'>AFTER_STACK</a><span class="Delimiter">;</span> +<span id="L66" class="LineNr"> 66 </span> Reg[EBP]<span class="Delimiter">.</span>u = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L67" class="LineNr"> 67 </span> <a href='010vm.cc.html#L29'>EIP</a> = e_entry<span class="Delimiter">;</span> +<span id="L68" class="LineNr"> 68 </span><span class="Delimiter">}</span> +<span id="L69" class="LineNr"> 69 </span> +<span id="L70" class="LineNr"> 70 </span><span class="Normal">void</span> <a href='020elf.cc.html#L70'>load_segment_from_program_header</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* elf_contents<span class="Delimiter">,</span> <span class="Normal">size_t</span> size<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> offset<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> e_ehsize<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L71" class="LineNr"> 71 </span> <span class="Normal">uint32_t</span> p_type = <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset]<span class="Delimiter">);</span> +<span id="L72" class="LineNr"> 72 </span> <a href='003trace.cc.html#L192'>dbg</a> << <span class="Constant">"program header at offset "</span> << offset << <span class="Constant">": type "</span> << p_type << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_type != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L74" class="LineNr"> 74 </span> <a href='003trace.cc.html#L192'>dbg</a> << <span class="Constant">"ignoring segment at offset "</span> << offset << <span class="Constant">" of non PT_LOAD type "</span> << p_type << <span class="Constant">" (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)"</span> << end<span class="Delimiter">();</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Delimiter">}</span> +<span id="L77" class="LineNr"> 77 </span> <span class="Normal">uint32_t</span> p_offset = <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">4</span>]<span class="Delimiter">);</span> +<span id="L78" class="LineNr"> 78 </span> <span class="Normal">uint32_t</span> p_vaddr = <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">8</span>]<span class="Delimiter">);</span> +<span id="L79" class="LineNr"> 79 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>e_ehsize > p_vaddr<span class="Delimiter">)</span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Invalid binary; <a href='011run.cc.html#L94'>program</a> header overlaps ELF header</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Comment">// unused: p_paddr</span> +<span id="L81" class="LineNr"> 81 </span> <span class="Normal">uint32_t</span> p_filesz = <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">16</span>]<span class="Delimiter">);</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Normal">uint32_t</span> p_memsz = <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span>&elf_contents[offset + <span class="Constant">20</span>]<span class="Delimiter">);</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_filesz != p_memsz<span class="Delimiter">)</span> +<span id="L84" class="LineNr"> 84 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Can't handle segments where p_filesz != p_memsz (see <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a>)</span><span class="cSpecial">\n</span><span class="Constant">"</span> << die<span class="Delimiter">();</span> +<span id="L85" class="LineNr"> 85 </span> +<span id="L86" class="LineNr"> 86 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_offset + p_filesz > size<span class="Delimiter">)</span> +<span id="L87" class="LineNr"> 87 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Invalid binary; segment at offset "</span> << offset << <span class="Constant">" is too large: wants to <a href='003trace.cc.html#L213'>end</a> at "</span> << p_offset+p_filesz << <span class="Constant">" but the file ends at "</span> << size << <span class="cSpecial">'\n'</span> << <a href='020elf.cc.html#L130'>die</a><span class="Delimiter">();</span> +<span id="L88" class="LineNr"> 88 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>size<span class="Delimiter">()</span> < p_vaddr + p_memsz<span class="Delimiter">)</span> +<span id="L89" class="LineNr"> 89 </span> <a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span>p_vaddr + p_memsz<span class="Delimiter">);</span> +<span id="L90" class="LineNr"> 90 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>size > p_memsz<span class="Delimiter">)</span> size = p_memsz<span class="Delimiter">;</span> +<span id="L91" class="LineNr"> 91 </span> <a href='003trace.cc.html#L192'>dbg</a> << <span class="Constant">"blitting file offsets ("</span> << p_offset << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_offset+p_filesz<span class="Delimiter">)</span> << <span class="Constant">") to addresses ("</span> << p_vaddr << <span class="Constant">", "</span> << <span class="Delimiter">(</span>p_vaddr+p_memsz<span class="Delimiter">)</span> << <span class="Constant">')'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L92" class="LineNr"> 92 </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 < p_filesz<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> +<span id="L93" class="LineNr"> 93 </span> <a href='010vm.cc.html#L130'>write_mem_u8</a><span class="Delimiter">(</span>p_vaddr+i<span class="Delimiter">,</span> elf_contents[p_offset+i]<span class="Delimiter">);</span> +<span id="L94" class="LineNr"> 94 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='010vm.cc.html#L95'>End_of_program</a> < p_vaddr+p_memsz<span class="Delimiter">)</span> +<span id="L95" class="LineNr"> 95 </span> <a href='010vm.cc.html#L95'>End_of_program</a> = p_vaddr+p_memsz<span class="Delimiter">;</span> +<span id="L96" class="LineNr"> 96 </span><span class="Delimiter">}</span> +<span id="L97" class="LineNr"> 97 </span> +<span id="L98" class="LineNr"> 98 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L99" class="LineNr"> 99 </span><span class="Comment">// Very primitive/fixed/insecure ELF segments for now.</span> +<span id="L100" class="LineNr">100 </span><span class="Comment">// code: 0x08048000 -> 0x08048fff</span> +<span id="L101" class="LineNr">101 </span><span class="Comment">// data: 0x08049000 -> 0x08049fff</span> +<span id="L102" class="LineNr">102 </span><span class="Comment">// heap: 0x0804a000 -> 0x0804afff</span> +<span id="L103" class="LineNr">103 </span><span class="Comment">// stack: 0x0804bfff -> 0x0804b000 (downward)</span> +<span id="L104" class="LineNr">104 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='020elf.cc.html#L104'>CODE_START</a> = <span class="Constant">0x08048000</span><span class="Delimiter">;</span> +<span id="L105" class="LineNr">105 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='020elf.cc.html#L105'>SEGMENT_SIZE</a> = <span class="Constant">0x1000</span><span class="Delimiter">;</span> +<span id="L106" class="LineNr">106 </span><span class="Normal">const</span> <span class="Normal">int</span> <a href='020elf.cc.html#L106'>AFTER_STACK</a> = <span class="Constant">0x0804c000</span><span class="Delimiter">;</span> +<span id="L107" class="LineNr">107 </span><span class="Delimiter">:(code)</span> +<span id="L108" class="LineNr">108 </span><span class="Normal">void</span> <a href='020elf.cc.html#L108'>initialize_mem</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L109" class="LineNr">109 </span> <a href='010vm.cc.html#L93'>Mem</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span><a href='020elf.cc.html#L106'>AFTER_STACK</a> - <a href='020elf.cc.html#L104'>CODE_START</a><span class="Delimiter">);</span> +<span id="L110" class="LineNr">110 </span><span class="Delimiter">}</span> +<span id="L111" class="LineNr">111 </span> +<span id="L112" class="LineNr">112 </span><span class="Normal">inline</span> <span class="Normal">uint32_t</span> <a href='020elf.cc.html#L112'>u32_in</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L113" class="LineNr">113 </span> <span class="Identifier">return</span> p[<span class="Constant">0</span>] | p[<span class="Constant">1</span>] << <span class="Constant">8</span> | p[<span class="Constant">2</span>] << <span class="Constant">16</span> | p[<span class="Constant">3</span>] << <span class="Constant">24</span><span class="Delimiter">;</span> +<span id="L114" class="LineNr">114 </span><span class="Delimiter">}</span> +<span id="L115" class="LineNr">115 </span> +<span id="L116" class="LineNr">116 </span><span class="Normal">inline</span> <span class="Normal">uint16_t</span> <a href='020elf.cc.html#L116'>u16_in</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span>* p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L117" class="LineNr">117 </span> <span class="Identifier">return</span> p[<span class="Constant">0</span>] | p[<span class="Constant">1</span>] << <span class="Constant">8</span><span class="Delimiter">;</span> +<span id="L118" class="LineNr">118 </span><span class="Delimiter">}</span> +<span id="L119" class="LineNr">119 </span> +<span id="L120" class="LineNr">120 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L121" class="LineNr">121 </span><span class="Normal">struct</span> <a href='020elf.cc.html#L121'>perr</a> <span class="Delimiter">{};</span> +<span id="L122" class="LineNr">122 </span><span class="Delimiter">:(code)</span> +<span id="L123" class="LineNr">123 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& os<span class="Delimiter">,</span> <a href='020elf.cc.html#L121'>perr</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L124" class="LineNr">124 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>errno<span class="Delimiter">)</span> +<span id="L125" class="LineNr">125 </span> os << <span class="Constant">": "</span> << strerror<span class="Delimiter">(</span>errno<span class="Delimiter">);</span> +<span id="L126" class="LineNr">126 </span> <span class="Identifier">return</span> os<span class="Delimiter">;</span> +<span id="L127" class="LineNr">127 </span><span class="Delimiter">}</span> +<span id="L128" class="LineNr">128 </span> +<span id="L129" class="LineNr">129 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L130" class="LineNr">130 </span><span class="Normal">struct</span> <a href='020elf.cc.html#L130'>die</a> <span class="Delimiter">{};</span> +<span id="L131" class="LineNr">131 </span><span class="Delimiter">:(code)</span> +<span id="L132" class="LineNr">132 </span>ostream& <span class="Normal">operator</span><<<span class="Delimiter">(</span>ostream& <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">,</span> <a href='020elf.cc.html#L130'>die</a> <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L133" class="LineNr">133 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">)</span> <a href='003trace.cc.html#L182'>Trace_stream</a><span class="Delimiter">-></span><a href='003trace.cc.html#L155'>newline</a><span class="Delimiter">();</span> +<span id="L134" class="LineNr">134 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L135" class="LineNr">135 </span><span class="Delimiter">}</span> +<span id="L136" class="LineNr">136 </span> +<span id="L137" class="LineNr">137 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L138" class="LineNr">138 </span><span class="Comment">#include <sys/types.h></span> +<span id="L139" class="LineNr">139 </span><span class="Comment">#include <sys/stat.h></span> +<span id="L140" class="LineNr">140 </span><span class="Comment">#include <fcntl.h></span> +<span id="L141" class="LineNr">141 </span><span class="Comment">#include <stdarg.h></span> +<span id="L142" class="LineNr">142 </span><span class="Comment">#include <errno.h></span> </pre> </body> </html> diff --git a/html/subx/021translate.cc.html b/html/subx/021translate.cc.html new file mode 100644 index 00000000..294eca80 --- /dev/null +++ b/html/subx/021translate.cc.html @@ -0,0 +1,226 @@ +<!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 - subx/021translate.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.SalientComment { color: #00ffff; } +.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; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: The bedrock level 1 of abstraction is now done, and we're going to start</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: building levels above it that make programming in x86 machine code a</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: little more ergonomic.</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment">//:</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: Higher levels will be in later layers. Since we can stop at any layer, we</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment">//: can execute levels from bedrock up to any level.</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment">//:</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment">//: All levels will be "pass through by default". Whatever they don't</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment">//: understand they will silently pass through to lower levels.</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment">//:</span> +<span id="L11" class="LineNr"> 11 </span><span class="Comment">//: Since raw hex bytes of machine code are always possible to inject, SubX is</span> +<span id="L12" class="LineNr"> 12 </span><span class="Comment">//: not a language, and we aren't building a compiler. This is something</span> +<span id="L13" class="LineNr"> 13 </span><span class="Comment">//: deliberately leakier. Levels are more for improving auditing, checks and</span> +<span id="L14" class="LineNr"> 14 </span><span class="Comment">//: error messages rather than for hiding low-level details.</span> +<span id="L15" class="LineNr"> 15 </span> +<span id="L16" class="LineNr"> 16 </span><span class="Comment">//: Translator workflow: read 'source' file. Run a series of transforms on it,</span> +<span id="L17" class="LineNr"> 17 </span><span class="Comment">//: each passing through what it doesn't understand. The final program should</span> +<span id="L18" class="LineNr"> 18 </span><span class="Comment">//: be just machine code, suitable to write to an ELF binary.</span> +<span id="L19" class="LineNr"> 19 </span><span class="Comment">//:</span> +<span id="L20" class="LineNr"> 20 </span><span class="Comment">//: Higher levels usually transform code on the basis of metadata.</span> +<span id="L21" class="LineNr"> 21 </span> +<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(before "End Main")</span> +<span id="L23" class="LineNr"> 23 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L89'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">"translate"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L24" class="LineNr"> 24 </span> <a href='003trace.cc.html#L236'>START_TRACING_UNTIL_END_OF_SCOPE</a><span class="Delimiter">;</span> +<span id="L25" class="LineNr"> 25 </span> assert<span class="Delimiter">(</span>argc > <span class="Constant">3</span><span class="Delimiter">);</span> +<span id="L26" class="LineNr"> 26 </span> <a href='011run.cc.html#L94'>program</a> p<span class="Delimiter">;</span> +<span id="L27" class="LineNr"> 27 </span> ifstream fin<span class="Delimiter">(</span>argv[<span class="Constant">2</span>]<span class="Delimiter">);</span> +<span id="L28" class="LineNr"> 28 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!fin<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L29" class="LineNr"> 29 </span> cerr << <span class="Constant">"could not open "</span> << argv[<span class="Constant">2</span>] << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span> +<span id="L30" class="LineNr"> 30 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L31" class="LineNr"> 31 </span> <span class="Delimiter">}</span> +<span id="L32" class="LineNr"> 32 </span> <a href='011run.cc.html#L122'>parse</a><span class="Delimiter">(</span>fin<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L33" class="LineNr"> 33 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L34" class="LineNr"> 34 </span> transform<span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L36" class="LineNr"> 36 </span> <a href='021translate.cc.html#L43'>save_elf</a><span class="Delimiter">(</span>p<span class="Delimiter">,</span> argv[<span class="Constant">3</span>]<span class="Delimiter">);</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> unlink<span class="Delimiter">(</span>argv[<span class="Constant">3</span>]<span class="Delimiter">);</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L39" class="LineNr"> 39 </span><span class="Delimiter">}</span> +<span id="L40" class="LineNr"> 40 </span> +<span id="L41" class="LineNr"> 41 </span><span class="Delimiter">:(code)</span> +<span id="L42" class="LineNr"> 42 </span><span class="Comment">// write out a program to a bare-bones ELF file</span> +<span id="L43" class="LineNr"> 43 </span><span class="Normal">void</span> <a href='021translate.cc.html#L43'>save_elf</a><span class="Delimiter">(</span><span class="Normal">const</span> program& p<span class="Delimiter">,</span> <span class="Normal">const</span> <span class="Normal">char</span>* filename<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L44" class="LineNr"> 44 </span> ofstream out<span class="Delimiter">(</span>filename<span class="Delimiter">,</span> ios::binary<span class="Delimiter">);</span> +<span id="L45" class="LineNr"> 45 </span> <a href='021translate.cc.html#L51'>write_elf_header</a><span class="Delimiter">(</span>out<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L46" class="LineNr"> 46 </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 < p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> +<span id="L47" class="LineNr"> 47 </span> <a href='021translate.cc.html#L144'>write_segment</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> out<span class="Delimiter">);</span> +<span id="L48" class="LineNr"> 48 </span> out<span class="Delimiter">.</span>close<span class="Delimiter">();</span> +<span id="L49" class="LineNr"> 49 </span><span class="Delimiter">}</span> +<span id="L50" class="LineNr"> 50 </span> +<span id="L51" class="LineNr"> 51 </span><span class="Normal">void</span> <a href='021translate.cc.html#L51'>write_elf_header</a><span class="Delimiter">(</span>ostream& out<span class="Delimiter">,</span> <span class="Normal">const</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Normal">char</span> c = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span> +<span id="L53" class="LineNr"> 53 </span><span class="Comment">#define O(X) c = (X); out.write(&c, sizeof(c))</span> +<span id="L54" class="LineNr"> 54 </span><span class="Comment">// host is required to be little-endian</span> +<span id="L55" class="LineNr"> 55 </span><span class="Comment">#define emit(X) out.write(reinterpret_cast<const char*>(&X), sizeof(X))</span> +<span id="L56" class="LineNr"> 56 </span> <span class="SalientComment">//// ehdr</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Comment">// e_ident</span> +<span id="L58" class="LineNr"> 58 </span> O<span class="Delimiter">(</span><span class="Constant">0x7f</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">E</span><span class="Comment">*/</span><span class="Constant">0x45</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">L</span><span class="Comment">*/</span><span class="Constant">0x4c</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">F</span><span class="Comment">*/</span><span class="Constant">0x46</span><span class="Delimiter">);</span> +<span id="L59" class="LineNr"> 59 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> <span class="Comment">// 32-bit format</span> +<span id="L60" class="LineNr"> 60 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> <span class="Comment">// little-endian</span> +<span id="L61" class="LineNr"> 61 </span> O<span class="Delimiter">(</span><span class="Constant">0x1</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x0</span><span class="Delimiter">);</span> +<span id="L62" class="LineNr"> 62 </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 < <span class="Constant">8</span><span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> O<span class="Delimiter">(</span><span class="Constant">0x0</span><span class="Delimiter">);</span> <span class="Delimiter">}</span> +<span id="L63" class="LineNr"> 63 </span> <span class="Comment">// e_type</span> +<span id="L64" class="LineNr"> 64 </span> O<span class="Delimiter">(</span><span class="Constant">0x02</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L65" class="LineNr"> 65 </span> <span class="Comment">// e_machine</span> +<span id="L66" class="LineNr"> 66 </span> O<span class="Delimiter">(</span><span class="Constant">0x03</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L67" class="LineNr"> 67 </span> <span class="Comment">// e_version</span> +<span id="L68" class="LineNr"> 68 </span> O<span class="Delimiter">(</span><span class="Constant">0x01</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> O<span class="Delimiter">(</span><span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L69" class="LineNr"> 69 </span> <span class="Comment">// e_entry</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Normal">int</span> e_entry = p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L103'>start</a><span class="Delimiter">;</span> <span class="Comment">// convention</span> +<span id="L71" class="LineNr"> 71 </span> emit<span class="Delimiter">(</span>e_entry<span class="Delimiter">);</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Comment">// e_phoff -- immediately after ELF header</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Normal">int</span> e_phoff = <span class="Constant">0x34</span><span class="Delimiter">;</span> +<span id="L74" class="LineNr"> 74 </span> emit<span class="Delimiter">(</span>e_phoff<span class="Delimiter">);</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Comment">// e_shoff; unused</span> +<span id="L76" class="LineNr"> 76 </span> <span class="Normal">int</span> dummy32 = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L77" class="LineNr"> 77 </span> emit<span class="Delimiter">(</span>dummy32<span class="Delimiter">);</span> +<span id="L78" class="LineNr"> 78 </span> <span class="Comment">// e_flags; unused</span> +<span id="L79" class="LineNr"> 79 </span> emit<span class="Delimiter">(</span>dummy32<span class="Delimiter">);</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Comment">// e_ehsize</span> +<span id="L81" class="LineNr"> 81 </span> <span class="Normal">uint16_t</span> e_ehsize = <span class="Constant">0x34</span><span class="Delimiter">;</span> +<span id="L82" class="LineNr"> 82 </span> emit<span class="Delimiter">(</span>e_ehsize<span class="Delimiter">);</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Comment">// e_phentsize</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Normal">uint16_t</span> e_phentsize = <span class="Constant">0x20</span><span class="Delimiter">;</span> +<span id="L85" class="LineNr"> 85 </span> emit<span class="Delimiter">(</span>e_phentsize<span class="Delimiter">);</span> +<span id="L86" class="LineNr"> 86 </span> <span class="Comment">// e_phnum</span> +<span id="L87" class="LineNr"> 87 </span> <span class="Normal">uint16_t</span> e_phnum = <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">);</span> +<span id="L88" class="LineNr"> 88 </span> emit<span class="Delimiter">(</span>e_phnum<span class="Delimiter">);</span> +<span id="L89" class="LineNr"> 89 </span> <span class="Comment">// e_shentsize</span> +<span id="L90" class="LineNr"> 90 </span> <span class="Normal">uint16_t</span> dummy16 = <span class="Constant">0x0</span><span class="Delimiter">;</span> +<span id="L91" class="LineNr"> 91 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Comment">// e_shnum</span> +<span id="L93" class="LineNr"> 93 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> +<span id="L94" class="LineNr"> 94 </span> <span class="Comment">// e_shstrndx</span> +<span id="L95" class="LineNr"> 95 </span> emit<span class="Delimiter">(</span>dummy16<span class="Delimiter">);</span> +<span id="L96" class="LineNr"> 96 </span> +<span id="L97" class="LineNr"> 97 </span> <span class="Normal">uint32_t</span> p_offset = <span class="Comment">/*</span><span class="Comment">size of ehdr</span><span class="Comment">*/</span><span class="Constant">0x34</span> + <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">)</span>*<span class="Constant">0x20</span><span class="Comment">/*</span><span class="Comment">size of each phdr</span><span class="Comment">*/</span><span class="Delimiter">;</span> +<span id="L98" class="LineNr"> 98 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L99" class="LineNr"> 99 </span> <span class="SalientComment">//// phdr</span> +<span id="L100" class="LineNr">100 </span> <span class="Comment">// p_type</span> +<span id="L101" class="LineNr">101 </span> <span class="Normal">uint32_t</span> p_type = <span class="Constant">0x1</span><span class="Delimiter">;</span> +<span id="L102" class="LineNr">102 </span> emit<span class="Delimiter">(</span>p_type<span class="Delimiter">);</span> +<span id="L103" class="LineNr">103 </span> <span class="Comment">// p_offset</span> +<span id="L104" class="LineNr">104 </span> emit<span class="Delimiter">(</span>p_offset<span class="Delimiter">);</span> +<span id="L105" class="LineNr">105 </span> <span class="Comment">// p_vaddr</span> +<span id="L106" class="LineNr">106 </span> emit<span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L103'>start</a><span class="Delimiter">);</span> +<span id="L107" class="LineNr">107 </span> <span class="Comment">// p_paddr</span> +<span id="L108" class="LineNr">108 </span> emit<span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L103'>start</a><span class="Delimiter">);</span> +<span id="L109" class="LineNr">109 </span> <span class="Comment">// p_filesz</span> +<span id="L110" class="LineNr">110 </span> <span class="Normal">uint32_t</span> size = <a href='021translate.cc.html#L154'>size_of</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> +<span id="L111" class="LineNr">111 </span> assert<span class="Delimiter">(</span>size < <a href='020elf.cc.html#L105'>SEGMENT_SIZE</a><span class="Delimiter">);</span> +<span id="L112" class="LineNr">112 </span> emit<span class="Delimiter">(</span>size<span class="Delimiter">);</span> +<span id="L113" class="LineNr">113 </span> <span class="Comment">// p_memsz</span> +<span id="L114" class="LineNr">114 </span> emit<span class="Delimiter">(</span>size<span class="Delimiter">);</span> +<span id="L115" class="LineNr">115 </span> <span class="Comment">// p_flags</span> +<span id="L116" class="LineNr">116 </span> <span class="Normal">uint32_t</span> p_flags = <span class="Delimiter">(</span>i == <span class="Constant">0</span><span class="Delimiter">)</span> ? <span class="Comment">/*</span><span class="Comment">r-x</span><span class="Comment">*/</span><span class="Constant">0x5</span> : <span class="Comment">/*</span><span class="Comment">rw-</span><span class="Comment">*/</span><span class="Constant">0x6</span><span class="Delimiter">;</span> <span class="Comment">// convention: only first segment is code</span> +<span id="L117" class="LineNr">117 </span> emit<span class="Delimiter">(</span>p_flags<span class="Delimiter">);</span> +<span id="L118" class="LineNr">118 </span> +<span id="L119" class="LineNr">119 </span> <span class="Comment">// p_align</span> +<span id="L120" class="LineNr">120 </span> <span class="Comment">// "As the system creates or augments a process image, it logically copies</span> +<span id="L121" class="LineNr">121 </span> <span class="Comment">// a file's segment to a virtual memory segment. When—and if— the system</span> +<span id="L122" class="LineNr">122 </span> <span class="Comment">// physically reads the file depends on the program's execution behavior,</span> +<span id="L123" class="LineNr">123 </span> <span class="Comment">// system load, and so on. A process does not require a physical page</span> +<span id="L124" class="LineNr">124 </span> <span class="Comment">// unless it references the logical page during execution, and processes</span> +<span id="L125" class="LineNr">125 </span> <span class="Comment">// commonly leave many pages unreferenced. Therefore delaying physical</span> +<span id="L126" class="LineNr">126 </span> <span class="Comment">// reads frequently obviates them, improving system performance. To obtain</span> +<span id="L127" class="LineNr">127 </span> <span class="Comment">// this efficiency in practice, executable and shared object files must</span> +<span id="L128" class="LineNr">128 </span> <span class="Comment">// have segment images whose file offsets and virtual addresses are</span> +<span id="L129" class="LineNr">129 </span> <span class="Comment">// congruent, modulo the page size." -- <a href="http://refspecs.linuxbase.org/elf/elf.pdf">http://refspecs.linuxbase.org/elf/elf.pdf</a> (page 95)</span> +<span id="L130" class="LineNr">130 </span> <span class="Normal">uint32_t</span> p_align = <span class="Constant">0x1000</span><span class="Delimiter">;</span> <span class="Comment">// default page size on linux</span> +<span id="L131" class="LineNr">131 </span> emit<span class="Delimiter">(</span>p_align<span class="Delimiter">);</span> +<span id="L132" class="LineNr">132 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p_offset % p_align != p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L103'>start</a> % p_align<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L133" class="LineNr">133 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"segment starting at 0x"</span> << <a href='010vm.cc.html#L228'>HEXWORD</a> << p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L103'>start</a> << <span class="Constant">" is improperly aligned; alignment for p_offset "</span> << p_offset << <span class="Constant">" should be "</span> << <span class="Delimiter">(</span>p_offset % p_align<span class="Delimiter">)</span> << <span class="Constant">" but is "</span> << <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L103'>start</a> % p_align<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L134" class="LineNr">134 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L135" class="LineNr">135 </span> <span class="Delimiter">}</span> +<span id="L136" class="LineNr">136 </span> +<span id="L137" class="LineNr">137 </span> <span class="Comment">// prepare for next segment</span> +<span id="L138" class="LineNr">138 </span> p_offset += size<span class="Delimiter">;</span> +<span id="L139" class="LineNr">139 </span> <span class="Delimiter">}</span> +<span id="L140" class="LineNr">140 </span><span class="Comment">#undef O</span> +<span id="L141" class="LineNr">141 </span><span class="Comment">#undef emit</span> +<span id="L142" class="LineNr">142 </span><span class="Delimiter">}</span> +<span id="L143" class="LineNr">143 </span> +<span id="L144" class="LineNr">144 </span><span class="Normal">void</span> <a href='021translate.cc.html#L144'>write_segment</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">,</span> ostream& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L145" class="LineNr">145 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L146" class="LineNr">146 </span> <span class="Normal">const</span> vector<word>& w = s<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">;</span> +<span id="L147" class="LineNr">147 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L148" class="LineNr">148 </span> <span class="Normal">uint8_t</span> x = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> <span class="Comment">// we're done with metadata by this point</span> +<span id="L149" class="LineNr">149 </span> out<span class="Delimiter">.</span>write<span class="Delimiter">(</span><span class="Normal">reinterpret_cast</span><<span class="Normal">const</span> <span class="Normal">char</span>*><span class="Delimiter">(</span>&x<span class="Delimiter">),</span> <span class="Comment">/*</span><span class="Comment">sizeof(byte)</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L150" class="LineNr">150 </span> <span class="Delimiter">}</span> +<span id="L151" class="LineNr">151 </span> <span class="Delimiter">}</span> +<span id="L152" class="LineNr">152 </span><span class="Delimiter">}</span> +<span id="L153" class="LineNr">153 </span> +<span id="L154" class="LineNr">154 </span><span class="Normal">uint32_t</span> <a href='021translate.cc.html#L154'>size_of</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L155" class="LineNr">155 </span> <span class="Normal">uint32_t</span> sum = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L156" class="LineNr">156 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L157" class="LineNr">157 </span> sum += <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> +<span id="L158" class="LineNr">158 </span> <span class="Identifier">return</span> sum<span class="Delimiter">;</span> +<span id="L159" class="LineNr">159 </span><span class="Delimiter">}</span> +<span id="L160" class="LineNr">160 </span> +<span id="L161" class="LineNr">161 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L162" class="LineNr">162 </span><span class="Normal">using</span> std::ios<span class="Delimiter">;</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/022check_instruction.cc.html b/html/subx/022check_instruction.cc.html new file mode 100644 index 00000000..75d6945a --- /dev/null +++ b/html/subx/022check_instruction.cc.html @@ -0,0 +1,750 @@ +<!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 - subx/022check_instruction.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.Special { color: #c00000; } +.CommentedCode { color: #6c6c6c; } +.SalientComment { color: #00ffff; } +.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; } +.traceContains { color: #008000; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Beginning of "level 2": tagging bytes with metadata around what field of</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: an x86 instruction they're for.</span> +<span id="L3" class="LineNr"> 3 </span><span class="Comment">//:</span> +<span id="L4" class="LineNr"> 4 </span><span class="Comment">//: The x86 instruction set is variable-length, and how a byte is interpreted</span> +<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: affects later instruction boundaries. A lot of the pain in programming machine code</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment">//: stems from computer and programmer going out of sync on what a byte</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: means. The miscommunication is usually not immediately caught, and</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment">//: metastasizes at runtime into kilobytes of misinterpreted instructions.</span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment">//: Tagging bytes with what the programmer expects them to be interpreted as</span> +<span id="L10" class="LineNr"> 10 </span><span class="Comment">//: helps the computer catch miscommunication immediately.</span> +<span id="L11" class="LineNr"> 11 </span><span class="Comment">//:</span> +<span id="L12" class="LineNr"> 12 </span><span class="Comment">//: This is one way SubX is going to be different from a 'language': we</span> +<span id="L13" class="LineNr"> 13 </span><span class="Comment">//: typically think of languages as less verbose than machine code. Here we're</span> +<span id="L14" class="LineNr"> 14 </span><span class="Comment">//: making machine code *more* verbose.</span> +<span id="L15" class="LineNr"> 15 </span><span class="Comment">//:</span> +<span id="L16" class="LineNr"> 16 </span><span class="Comment">//: ---</span> +<span id="L17" class="LineNr"> 17 </span><span class="Comment">//:</span> +<span id="L18" class="LineNr"> 18 </span><span class="Comment">//: While we're here, we'll also improve a couple of other things:</span> +<span id="L19" class="LineNr"> 19 </span><span class="Comment">//:</span> +<span id="L20" class="LineNr"> 20 </span><span class="Comment">//: a) Machine code often packs logically separate operands into bitfields of</span> +<span id="L21" class="LineNr"> 21 </span><span class="Comment">//: a single byte. We'll start writing out each operand separately, and the</span> +<span id="L22" class="LineNr"> 22 </span><span class="Comment">//: translator will construct the right bytes out of operands.</span> +<span id="L23" class="LineNr"> 23 </span><span class="Comment">//:</span> +<span id="L24" class="LineNr"> 24 </span><span class="Comment">//: SubX now gets still more verbose. What used to be a single byte, say 'c3',</span> +<span id="L25" class="LineNr"> 25 </span><span class="Comment">//: can now expand to '3/mod 0/subop 3/rm32'.</span> +<span id="L26" class="LineNr"> 26 </span><span class="Comment">//:</span> +<span id="L27" class="LineNr"> 27 </span><span class="Comment">//: b) Since each operand is tagged, we can loosen ordering restrictions and</span> +<span id="L28" class="LineNr"> 28 </span><span class="Comment">//: allow writing out the operands in any order, like keyword arguments.</span> +<span id="L29" class="LineNr"> 29 </span><span class="Comment">//:</span> +<span id="L30" class="LineNr"> 30 </span><span class="Comment">//: c) Operand values can be expressed in either decimal or hex (when prefixed</span> +<span id="L31" class="LineNr"> 31 </span><span class="Comment">//: with '0x'. Raw 2-character hex bytes without the '0x' are only valid when</span> +<span id="L32" class="LineNr"> 32 </span><span class="Comment">//: tagged without any operand metadata. (This may be a bad idea.)</span> +<span id="L33" class="LineNr"> 33 </span><span class="Comment">//:</span> +<span id="L34" class="LineNr"> 34 </span><span class="Comment">//: Coda: the actual opcodes (1-3 bytes) will continue to be at the start of</span> +<span id="L35" class="LineNr"> 35 </span><span class="Comment">//: each line, in hex, and untagged. The x86 instruction set is a mess, and</span> +<span id="L36" class="LineNr"> 36 </span><span class="Comment">//: instructions don't admit good names.</span> +<span id="L37" class="LineNr"> 37 </span> +<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Texts")</span> +<span id="L39" class="LineNr"> 39 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"instructions"</span><span class="Delimiter">,</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Constant">"Each x86 instruction consists of an instruction or opcode and some number</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L41" class="LineNr"> 41 </span> <span class="Constant">"of operands.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Constant">"Each operand has a type. An instruction won't have more than one operand of</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Constant">"any type.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Constant">"Each instruction has some set of allowed operand types. It'll reject others.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Constant">"The complete list of operand <a href='022check_instruction.cc.html#L481'>types</a>: mod, subop, r32 (register), rm32</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Constant">"(register or memory), scale, index, base, disp8, disp16, disp32, imm8,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Constant">"imm32.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Constant">"Each of these has its own help page. Try reading 'subx help mod' next.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L49" class="LineNr"> 49 </span><span class="Delimiter">);</span> +<span id="L50" class="LineNr"> 50 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Contents")</span> +<span id="L51" class="LineNr"> 51 </span>cerr << <span class="Constant">" instructions</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span> +<span id="L52" class="LineNr"> 52 </span> +<span id="L53" class="LineNr"> 53 </span><span class="SalientComment">//:: Check for 'syntax errors'; missing or unexpected operands.</span> +<span id="L54" class="LineNr"> 54 </span> +<span id="L55" class="LineNr"> 55 </span><span class="Delimiter">:(scenario check_missing_imm8_operand)</span> +<span id="L56" class="LineNr"> 56 </span><span class="Special">% Hide_errors = true;</span> +<span id="L57" class="LineNr"> 57 </span>== <span class="Constant">0x1</span> +<span id="L58" class="LineNr"> 58 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L59" class="LineNr"> 59 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L60" class="LineNr"> 60 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L61" class="LineNr"> 61 </span> cd <span class="Comment"># int ??</span> +<span id="L62" class="LineNr"> 62 </span><span class="traceContains">+error: 'cd' (software interrupt): missing imm8 operand</span> +<span id="L63" class="LineNr"> 63 </span> +<span id="L64" class="LineNr"> 64 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L65" class="LineNr"> 65 </span><a href='011run.cc.html#L184'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>check_operands<span class="Delimiter">);</span> +<span id="L66" class="LineNr"> 66 </span> +<span id="L67" class="LineNr"> 67 </span><span class="Delimiter">:(code)</span> +<span id="L68" class="LineNr"> 68 </span><span class="Normal">void</span> check_operands<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">const</span><span class="Comment">*/</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L69" class="LineNr"> 69 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- check operands"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L70" class="LineNr"> 70 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L71" class="LineNr"> 71 </span> <span class="Normal">const</span> segment& code = p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L73" class="LineNr"> 73 </span> check_operands<span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// stop at the first mal-formed instruction</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Delimiter">}</span> +<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">}</span> +<span id="L77" class="LineNr"> 77 </span> +<span id="L78" class="LineNr"> 78 </span><span class="Normal">void</span> check_operands<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L79" class="LineNr"> 79 </span> <a href='011run.cc.html#L113'>word</a> op = <a href='022check_instruction.cc.html#L91'>preprocess_op</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L81" class="LineNr"> 81 </span> <a href='022check_instruction.cc.html#L562'>check_operands_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Delimiter">}</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"f3"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L85" class="LineNr"> 85 </span> <a href='022check_instruction.cc.html#L535'>check_operands_f3</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L86" class="LineNr"> 86 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L87" class="LineNr"> 87 </span> <span class="Delimiter">}</span> +<span id="L88" class="LineNr"> 88 </span> check_operands<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L89" class="LineNr"> 89 </span><span class="Delimiter">}</span> +<span id="L90" class="LineNr"> 90 </span> +<span id="L91" class="LineNr"> 91 </span><a href='011run.cc.html#L113'>word</a> <a href='022check_instruction.cc.html#L91'>preprocess_op</a><span class="Delimiter">(</span><a href='011run.cc.html#L113'>word</a><span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L92" class="LineNr"> 92 </span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a> = <a href='022check_instruction.cc.html#L596'>tolower</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">.</span>c_str<span class="Delimiter">());</span> +<span id="L93" class="LineNr"> 93 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L93'>starts_with</a><span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">,</span> <span class="Constant">"0x"</span><span class="Delimiter">))</span> +<span id="L94" class="LineNr"> 94 </span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a> = op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Identifier">return</span> op<span class="Delimiter">;</span> +<span id="L96" class="LineNr"> 96 </span><span class="Delimiter">}</span> +<span id="L97" class="LineNr"> 97 </span> +<span id="L98" class="LineNr"> 98 </span><span class="Comment">//: To check the operands for an opcode, we'll track the permitted operands</span> +<span id="L99" class="LineNr"> 99 </span><span class="Comment">//: for each supported opcode in a bitvector. That way we can often compute the</span> +<span id="L100" class="LineNr">100 </span><span class="Comment">//: bitvector for each instruction's operands and compare it with the expected.</span> +<span id="L101" class="LineNr">101 </span> +<span id="L102" class="LineNr">102 </span><span class="Delimiter">:(before "End Types")</span> +<span id="L103" class="LineNr">103 </span><span class="Normal">enum</span> <a href='022check_instruction.cc.html#L103'>operand_type</a> <span class="Delimiter">{</span> +<span id="L104" class="LineNr">104 </span> <span class="Comment">// start from the least significant bit</span> +<span id="L105" class="LineNr">105 </span> <a href='022check_instruction.cc.html#L105'>MODRM</a><span class="Delimiter">,</span> <span class="Comment">// more complex, may also involve disp8 or disp32</span> +<span id="L106" class="LineNr">106 </span> <a href='022check_instruction.cc.html#L106'>SUBOP</a><span class="Delimiter">,</span> +<span id="L107" class="LineNr">107 </span> <a href='022check_instruction.cc.html#L107'>DISP8</a><span class="Delimiter">,</span> +<span id="L108" class="LineNr">108 </span> <a href='022check_instruction.cc.html#L108'>DISP16</a><span class="Delimiter">,</span> +<span id="L109" class="LineNr">109 </span> <a href='022check_instruction.cc.html#L109'>DISP32</a><span class="Delimiter">,</span> +<span id="L110" class="LineNr">110 </span> <a href='022check_instruction.cc.html#L110'>IMM8</a><span class="Delimiter">,</span> +<span id="L111" class="LineNr">111 </span> <a href='022check_instruction.cc.html#L111'>IMM32</a><span class="Delimiter">,</span> +<span id="L112" class="LineNr">112 </span> <a href='022check_instruction.cc.html#L112'>NUM_OPERAND_TYPES</a> +<span id="L113" class="LineNr">113 </span><span class="Delimiter">};</span> +<span id="L114" class="LineNr">114 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L115" class="LineNr">115 </span>vector<string> <a href='022check_instruction.cc.html#L115'>Operand_type_name</a><span class="Delimiter">;</span> +<span id="L116" class="LineNr">116 </span>map<string<span class="Delimiter">,</span> operand_type> <a href='022check_instruction.cc.html#L116'>Operand_type</a><span class="Delimiter">;</span> +<span id="L117" class="LineNr">117 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L118" class="LineNr">118 </span><a href='022check_instruction.cc.html#L120'>init_op_types</a><span class="Delimiter">();</span> +<span id="L119" class="LineNr">119 </span><span class="Delimiter">:(code)</span> +<span id="L120" class="LineNr">120 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L120'>init_op_types</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L121" class="LineNr">121 </span> assert<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L112'>NUM_OPERAND_TYPES</a> <= <span class="Comment">/*</span><span class="Comment">bits in a uint8_t</span><span class="Comment">*/</span><span class="Constant">8</span><span class="Delimiter">);</span> +<span id="L122" class="LineNr">122 </span> <a href='022check_instruction.cc.html#L115'>Operand_type_name</a><span class="Delimiter">.</span>resize<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L112'>NUM_OPERAND_TYPES</a><span class="Delimiter">);</span> +<span id="L123" class="LineNr">123 </span><span class="PreProc"> </span><span class="Comment">#define DEF(type) Operand_type_name.at(type) = tolower(#type), put(Operand_type, tolower(#type), type);</span> +<span id="L124" class="LineNr">124 </span> DEF<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L105'>MODRM</a><span class="Delimiter">);</span> +<span id="L125" class="LineNr">125 </span> DEF<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L106'>SUBOP</a><span class="Delimiter">);</span> +<span id="L126" class="LineNr">126 </span> DEF<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L107'>DISP8</a><span class="Delimiter">);</span> +<span id="L127" class="LineNr">127 </span> DEF<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L108'>DISP16</a><span class="Delimiter">);</span> +<span id="L128" class="LineNr">128 </span> DEF<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L109'>DISP32</a><span class="Delimiter">);</span> +<span id="L129" class="LineNr">129 </span> DEF<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L110'>IMM8</a><span class="Delimiter">);</span> +<span id="L130" class="LineNr">130 </span> DEF<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L111'>IMM32</a><span class="Delimiter">);</span> +<span id="L131" class="LineNr">131 </span><span class="PreProc"> </span><span class="Comment">#undef DEF</span> +<span id="L132" class="LineNr">132 </span><span class="Delimiter">}</span> +<span id="L133" class="LineNr">133 </span> +<span id="L134" class="LineNr">134 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L135" class="LineNr">135 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">bitvector</span><span class="Comment">*/</span><span class="Normal">uint8_t</span>> <a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">;</span> +<span id="L136" class="LineNr">136 </span><span class="Normal">const</span> <span class="Normal">uint8_t</span> <a href='022check_instruction.cc.html#L136'>INVALID_OPERANDS</a> = <span class="Constant">0xff</span><span class="Delimiter">;</span> <span class="Comment">// no instruction uses all the operand types</span> +<span id="L137" class="LineNr">137 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L138" class="LineNr">138 </span><a href='022check_instruction.cc.html#L140'>init_permitted_operands</a><span class="Delimiter">();</span> +<span id="L139" class="LineNr">139 </span><span class="Delimiter">:(code)</span> +<span id="L140" class="LineNr">140 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L140'>init_permitted_operands</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L141" class="LineNr">141 </span> <span class="SalientComment">//// Class A: just op, no operands</span> +<span id="L142" class="LineNr">142 </span> <span class="Comment">// halt</span> +<span id="L143" class="LineNr">143 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"f4"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L144" class="LineNr">144 </span> <span class="Comment">// push</span> +<span id="L145" class="LineNr">145 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"50"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L146" class="LineNr">146 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"51"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L147" class="LineNr">147 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"52"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L148" class="LineNr">148 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"53"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L149" class="LineNr">149 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"54"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L150" class="LineNr">150 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"55"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L151" class="LineNr">151 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"56"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L152" class="LineNr">152 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"57"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L153" class="LineNr">153 </span> <span class="Comment">// pop</span> +<span id="L154" class="LineNr">154 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"58"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L155" class="LineNr">155 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"59"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L156" class="LineNr">156 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"5a"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L157" class="LineNr">157 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"5b"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L158" class="LineNr">158 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"5c"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L159" class="LineNr">159 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"5d"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L160" class="LineNr">160 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"5e"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L161" class="LineNr">161 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"5f"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L162" class="LineNr">162 </span> <span class="Comment">// return</span> +<span id="L163" class="LineNr">163 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"c3"</span><span class="Delimiter">,</span> <span class="Constant">0x00</span><span class="Delimiter">);</span> +<span id="L164" class="LineNr">164 </span> +<span id="L165" class="LineNr">165 </span> <span class="SalientComment">//// Class B: just op and disp8</span> +<span id="L166" class="LineNr">166 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L167" class="LineNr">167 </span> <span class="Comment">// 0 0 0 |0 1 0 0</span> +<span id="L168" class="LineNr">168 </span> +<span id="L169" class="LineNr">169 </span> <span class="Comment">// jump</span> +<span id="L170" class="LineNr">170 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"eb"</span><span class="Delimiter">,</span> <span class="Constant">0x04</span><span class="Delimiter">);</span> +<span id="L171" class="LineNr">171 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"74"</span><span class="Delimiter">,</span> <span class="Constant">0x04</span><span class="Delimiter">);</span> +<span id="L172" class="LineNr">172 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"75"</span><span class="Delimiter">,</span> <span class="Constant">0x04</span><span class="Delimiter">);</span> +<span id="L173" class="LineNr">173 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"7c"</span><span class="Delimiter">,</span> <span class="Constant">0x04</span><span class="Delimiter">);</span> +<span id="L174" class="LineNr">174 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"7d"</span><span class="Delimiter">,</span> <span class="Constant">0x04</span><span class="Delimiter">);</span> +<span id="L175" class="LineNr">175 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"7e"</span><span class="Delimiter">,</span> <span class="Constant">0x04</span><span class="Delimiter">);</span> +<span id="L176" class="LineNr">176 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"7f"</span><span class="Delimiter">,</span> <span class="Constant">0x04</span><span class="Delimiter">);</span> +<span id="L177" class="LineNr">177 </span> +<span id="L178" class="LineNr">178 </span> <span class="SalientComment">//// Class C: just op and disp16</span> +<span id="L179" class="LineNr">179 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L180" class="LineNr">180 </span> <span class="Comment">// 0 0 0 |1 0 0 0</span> +<span id="L181" class="LineNr">181 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"e8"</span><span class="Delimiter">,</span> <span class="Constant">0x08</span><span class="Delimiter">);</span> <span class="Comment">// jump</span> +<span id="L182" class="LineNr">182 </span> +<span id="L183" class="LineNr">183 </span> <span class="SalientComment">//// Class D: just op and disp32</span> +<span id="L184" class="LineNr">184 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L185" class="LineNr">185 </span> <span class="Comment">// 0 0 1 |0 0 0 0</span> +<span id="L186" class="LineNr">186 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"e9"</span><span class="Delimiter">,</span> <span class="Constant">0x10</span><span class="Delimiter">);</span> <span class="Comment">// call</span> +<span id="L187" class="LineNr">187 </span> +<span id="L188" class="LineNr">188 </span> <span class="SalientComment">//// Class E: just op and imm8</span> +<span id="L189" class="LineNr">189 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L190" class="LineNr">190 </span> <span class="Comment">// 0 1 0 |0 0 0 0</span> +<span id="L191" class="LineNr">191 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"cd"</span><span class="Delimiter">,</span> <span class="Constant">0x20</span><span class="Delimiter">);</span> <span class="Comment">// software interrupt</span> +<span id="L192" class="LineNr">192 </span> +<span id="L193" class="LineNr">193 </span> <span class="SalientComment">//// Class F: just op and imm32</span> +<span id="L194" class="LineNr">194 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L195" class="LineNr">195 </span> <span class="Comment">// 1 0 0 |0 0 0 0</span> +<span id="L196" class="LineNr">196 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"05"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> <span class="Comment">// add</span> +<span id="L197" class="LineNr">197 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"2d"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> <span class="Comment">// subtract</span> +<span id="L198" class="LineNr">198 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"25"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> <span class="Comment">// and</span> +<span id="L199" class="LineNr">199 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"0d"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> <span class="Comment">// or</span> +<span id="L200" class="LineNr">200 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"35"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> <span class="Comment">// xor</span> +<span id="L201" class="LineNr">201 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"3d"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> <span class="Comment">// compare</span> +<span id="L202" class="LineNr">202 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"68"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> <span class="Comment">// push</span> +<span id="L203" class="LineNr">203 </span> <span class="Comment">// copy</span> +<span id="L204" class="LineNr">204 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"b8"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> +<span id="L205" class="LineNr">205 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"b9"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> +<span id="L206" class="LineNr">206 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"ba"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> +<span id="L207" class="LineNr">207 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"bb"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> +<span id="L208" class="LineNr">208 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"bc"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> +<span id="L209" class="LineNr">209 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"bd"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> +<span id="L210" class="LineNr">210 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"be"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> +<span id="L211" class="LineNr">211 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"bf"</span><span class="Delimiter">,</span> <span class="Constant">0x40</span><span class="Delimiter">);</span> +<span id="L212" class="LineNr">212 </span> +<span id="L213" class="LineNr">213 </span> <span class="SalientComment">//// Class M: using ModR/M byte</span> +<span id="L214" class="LineNr">214 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L215" class="LineNr">215 </span> <span class="Comment">// 0 0 0 |0 0 0 1</span> +<span id="L216" class="LineNr">216 </span> +<span id="L217" class="LineNr">217 </span> <span class="Comment">// add</span> +<span id="L218" class="LineNr">218 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"01"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L219" class="LineNr">219 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"03"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L220" class="LineNr">220 </span> <span class="Comment">// subtract</span> +<span id="L221" class="LineNr">221 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"29"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L222" class="LineNr">222 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"2b"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L223" class="LineNr">223 </span> <span class="Comment">// and</span> +<span id="L224" class="LineNr">224 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"21"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L225" class="LineNr">225 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"23"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L226" class="LineNr">226 </span> <span class="Comment">// or</span> +<span id="L227" class="LineNr">227 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"09"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L228" class="LineNr">228 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"0b"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L229" class="LineNr">229 </span> <span class="Comment">// complement</span> +<span id="L230" class="LineNr">230 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"f7"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L231" class="LineNr">231 </span> <span class="Comment">// xor</span> +<span id="L232" class="LineNr">232 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"31"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L233" class="LineNr">233 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"33"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L234" class="LineNr">234 </span> <span class="Comment">// compare</span> +<span id="L235" class="LineNr">235 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"39"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L236" class="LineNr">236 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"3b"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L237" class="LineNr">237 </span> <span class="Comment">// copy</span> +<span id="L238" class="LineNr">238 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"89"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L239" class="LineNr">239 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"8b"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L240" class="LineNr">240 </span> <span class="Comment">// swap</span> +<span id="L241" class="LineNr">241 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"87"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L242" class="LineNr">242 </span> <span class="Comment">// pop</span> +<span id="L243" class="LineNr">243 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">0x01</span><span class="Delimiter">);</span> +<span id="L244" class="LineNr">244 </span> +<span id="L245" class="LineNr">245 </span> <span class="SalientComment">//// Class O: op, ModR/M and subop (not r32)</span> +<span id="L246" class="LineNr">246 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L247" class="LineNr">247 </span> <span class="Comment">// 0 0 0 |0 0 1 1</span> +<span id="L248" class="LineNr">248 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"ff"</span><span class="Delimiter">,</span> <span class="Constant">0x03</span><span class="Delimiter">);</span> <span class="Comment">// jump/push/call</span> +<span id="L249" class="LineNr">249 </span> +<span id="L250" class="LineNr">250 </span> <span class="SalientComment">//// Class N: op, ModR/M and imm32</span> +<span id="L251" class="LineNr">251 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L252" class="LineNr">252 </span> <span class="Comment">// 1 0 0 |0 0 0 1</span> +<span id="L253" class="LineNr">253 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"c7"</span><span class="Delimiter">,</span> <span class="Constant">0x41</span><span class="Delimiter">);</span> <span class="Comment">// copy</span> +<span id="L254" class="LineNr">254 </span> +<span id="L255" class="LineNr">255 </span> <span class="SalientComment">//// Class P: op, ModR/M, subop (not r32) and imm32</span> +<span id="L256" class="LineNr">256 </span> <span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L257" class="LineNr">257 </span> <span class="Comment">// 1 0 0 |0 0 1 1</span> +<span id="L258" class="LineNr">258 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> <span class="Constant">"81"</span><span class="Delimiter">,</span> <span class="Constant">0x43</span><span class="Delimiter">);</span> <span class="Comment">// combine</span> +<span id="L259" class="LineNr">259 </span> +<span id="L260" class="LineNr">260 </span> <span class="Comment">// End Init Permitted Operands</span> +<span id="L261" class="LineNr">261 </span><span class="Delimiter">}</span> +<span id="L262" class="LineNr">262 </span> +<span id="L263" class="LineNr">263 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L264" class="LineNr">264 </span><span class="Comment">#define HAS(bitvector, bit) ((bitvector) & (1 << (bit)))</span> +<span id="L265" class="LineNr">265 </span><span class="Comment">#define SET(bitvector, bit) ((bitvector) | (1 << (bit)))</span> +<span id="L266" class="LineNr">266 </span><span class="Comment">#define CLEAR(bitvector, bit) ((bitvector) & (~(1 << (bit))))</span> +<span id="L267" class="LineNr">267 </span> +<span id="L268" class="LineNr">268 </span><span class="Delimiter">:(code)</span> +<span id="L269" class="LineNr">269 </span><span class="Normal">void</span> check_operands<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L270" class="LineNr">270 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>op<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L271" class="LineNr">271 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L135'>Permitted_operands</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L272" class="LineNr">272 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L264'>HAS</a><span class="Delimiter">(</span>expected_bitvector<span class="Delimiter">,</span> <a href='022check_instruction.cc.html#L105'>MODRM</a><span class="Delimiter">))</span> +<span id="L273" class="LineNr">273 </span> <a href='022check_instruction.cc.html#L401'>check_operands_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L274" class="LineNr">274 </span> <a href='022check_instruction.cc.html#L279'>compare_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <a href='022check_instruction.cc.html#L266'>CLEAR</a><span class="Delimiter">(</span>expected_bitvector<span class="Delimiter">,</span> <a href='022check_instruction.cc.html#L105'>MODRM</a><span class="Delimiter">),</span> op<span class="Delimiter">);</span> +<span id="L275" class="LineNr">275 </span><span class="Delimiter">}</span> +<span id="L276" class="LineNr">276 </span> +<span id="L277" class="LineNr">277 </span><span class="Comment">//: Many instructions can be checked just by comparing bitvectors.</span> +<span id="L278" class="LineNr">278 </span> +<span id="L279" class="LineNr">279 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L279'>compare_bitvector</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">uint8_t</span> expected<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L280" class="LineNr">280 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L337'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='022check_instruction.cc.html#L322'>has_operands</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> +<span id="L281" class="LineNr">281 </span> <span class="Normal">uint8_t</span> bitvector = <a href='022check_instruction.cc.html#L313'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L282" class="LineNr">282 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// duplicate operand type</span> +<span id="L283" class="LineNr">283 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>bitvector == expected<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// all good with this instruction</span> +<span id="L284" class="LineNr">284 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='022check_instruction.cc.html#L112'>NUM_OPERAND_TYPES</a><span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> bitvector >>= <span class="Constant">1</span><span class="Delimiter">,</span> expected >>= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L285" class="LineNr">285 </span><span class="CommentedCode">//? cerr << "comparing " << HEXBYTE << NUM(bitvector) << " with " << NUM(expected) << '\n';</span> +<span id="L286" class="LineNr">286 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> == <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// all good with this operand</span> +<span id="L287" class="LineNr">287 </span> <span class="Normal">const</span> string& optype = <a href='022check_instruction.cc.html#L115'>Operand_type_name</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L288" class="LineNr">288 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> > <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> +<span id="L289" class="LineNr">289 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='022check_instruction.cc.html#L297'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": unexpected "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L290" class="LineNr">290 </span> <span class="Normal">else</span> +<span id="L291" class="LineNr">291 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='022check_instruction.cc.html#L297'>maybe_name</a><span class="Delimiter">(</span>op<span class="Delimiter">)</span> << <span class="Constant">": missing "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L292" class="LineNr">292 </span> <span class="Comment">// continue giving all errors for a single instruction</span> +<span id="L293" class="LineNr">293 </span> <span class="Delimiter">}</span> +<span id="L294" class="LineNr">294 </span> <span class="Comment">// ignore settings in any unused bits</span> +<span id="L295" class="LineNr">295 </span><span class="Delimiter">}</span> +<span id="L296" class="LineNr">296 </span> +<span id="L297" class="LineNr">297 </span>string <a href='022check_instruction.cc.html#L297'>maybe_name</a><span class="Delimiter">(</span><span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L298" class="LineNr">298 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>op<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L299" class="LineNr">299 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">""</span><span class="Delimiter">;</span> +<span id="L300" class="LineNr">300 </span> <span class="Identifier">return</span> <span class="Constant">" ("</span>+get<span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">)</span>+<span class="Constant">')'</span><span class="Delimiter">;</span> +<span id="L301" class="LineNr">301 </span><span class="Delimiter">}</span> +<span id="L302" class="LineNr">302 </span> +<span id="L303" class="LineNr">303 </span><span class="Normal">bool</span> <a href='022check_instruction.cc.html#L303'>is_hex_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> word& curr<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L304" class="LineNr">304 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L344'>contains_any_operand_metadata</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> +<span id="L305" class="LineNr">305 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L306" class="LineNr">306 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> +<span id="L307" class="LineNr">307 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L308" class="LineNr">308 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789abcdefABCDEF"</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> +<span id="L309" class="LineNr">309 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L310" class="LineNr">310 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L311" class="LineNr">311 </span><span class="Delimiter">}</span> +<span id="L312" class="LineNr">312 </span> +<span id="L313" class="LineNr">313 </span><span class="Normal">uint32_t</span> <a href='022check_instruction.cc.html#L313'>compute_operand_bitvector</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L314" class="LineNr">314 </span> <span class="Normal">uint32_t</span> bitvector = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L315" class="LineNr">315 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip op</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L316" class="LineNr">316 </span> bitvector = bitvector | <a href='022check_instruction.cc.html#L353'>bitvector_for_operand</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span> +<span id="L317" class="LineNr">317 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span> <a href='022check_instruction.cc.html#L136'>INVALID_OPERANDS</a><span class="Delimiter">;</span> <span class="Comment">// duplicate operand type</span> +<span id="L318" class="LineNr">318 </span> <span class="Delimiter">}</span> +<span id="L319" class="LineNr">319 </span> <span class="Identifier">return</span> bitvector<span class="Delimiter">;</span> +<span id="L320" class="LineNr">320 </span><span class="Delimiter">}</span> +<span id="L321" class="LineNr">321 </span> +<span id="L322" class="LineNr">322 </span><span class="Normal">bool</span> <a href='022check_instruction.cc.html#L322'>has_operands</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L323" class="LineNr">323 </span> <span class="Identifier">return</span> <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">)</span> > <a href='022check_instruction.cc.html#L326'>first_operand</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L324" class="LineNr">324 </span><span class="Delimiter">}</span> +<span id="L325" class="LineNr">325 </span> +<span id="L326" class="LineNr">326 </span><span class="Normal">int</span> <a href='022check_instruction.cc.html#L326'>first_operand</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L327" class="LineNr">327 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">2</span><span class="Delimiter">;</span> +<span id="L328" class="LineNr">328 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"f3"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L329" class="LineNr">329 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> +<span id="L330" class="LineNr">330 </span> <span class="Identifier">return</span> <span class="Constant">3</span><span class="Delimiter">;</span> +<span id="L331" class="LineNr">331 </span> <span class="Normal">else</span> +<span id="L332" class="LineNr">332 </span> <span class="Identifier">return</span> <span class="Constant">2</span><span class="Delimiter">;</span> +<span id="L333" class="LineNr">333 </span> <span class="Delimiter">}</span> +<span id="L334" class="LineNr">334 </span> <span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span> +<span id="L335" class="LineNr">335 </span><span class="Delimiter">}</span> +<span id="L336" class="LineNr">336 </span> +<span id="L337" class="LineNr">337 </span><span class="Normal">bool</span> <a href='022check_instruction.cc.html#L337'>all_hex_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L338" class="LineNr">338 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L339" class="LineNr">339 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_byte<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> +<span id="L340" class="LineNr">340 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L341" class="LineNr">341 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L342" class="LineNr">342 </span><span class="Delimiter">}</span> +<span id="L343" class="LineNr">343 </span> +<span id="L344" class="LineNr">344 </span><span class="Normal">bool</span> <a href='022check_instruction.cc.html#L344'>contains_any_operand_metadata</a><span class="Delimiter">(</span><span class="Normal">const</span> word& <a href='011run.cc.html#L113'>word</a><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L345" class="LineNr">345 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span><a href='011run.cc.html#L113'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L346" class="LineNr">346 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>find<span class="Delimiter">(</span><a href='011run.cc.html#L113'>word</a><span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> != <a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">())</span> +<span id="L347" class="LineNr">347 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L348" class="LineNr">348 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L349" class="LineNr">349 </span><span class="Delimiter">}</span> +<span id="L350" class="LineNr">350 </span> +<span id="L351" class="LineNr">351 </span><span class="Comment">// Scan the metadata of 'w' and return the bit corresponding to any operand type.</span> +<span id="L352" class="LineNr">352 </span><span class="Comment">// Also raise an error if metadata contains multiple operand types.</span> +<span id="L353" class="LineNr">353 </span><span class="Normal">uint32_t</span> <a href='022check_instruction.cc.html#L353'>bitvector_for_operand</a><span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L354" class="LineNr">354 </span> <span class="Normal">uint32_t</span> bv = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L355" class="LineNr">355 </span> <span class="Normal">bool</span> found =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L356" class="LineNr">356 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L357" class="LineNr">357 </span> <span class="Normal">const</span> string& curr = w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L358" class="LineNr">358 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L116'>Operand_type</a><span class="Delimiter">,</span> curr<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// ignore unrecognized metadata</span> +<span id="L359" class="LineNr">359 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>found<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L360" class="LineNr">360 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting operand types; it should have only one</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L361" class="LineNr">361 </span> <span class="Identifier">return</span> <a href='022check_instruction.cc.html#L136'>INVALID_OPERANDS</a><span class="Delimiter">;</span> +<span id="L362" class="LineNr">362 </span> <span class="Delimiter">}</span> +<span id="L363" class="LineNr">363 </span> bv = <span class="Delimiter">(</span><span class="Constant">1</span> << get<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L116'>Operand_type</a><span class="Delimiter">,</span> curr<span class="Delimiter">));</span> +<span id="L364" class="LineNr">364 </span> found =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L365" class="LineNr">365 </span> <span class="Delimiter">}</span> +<span id="L366" class="LineNr">366 </span> <span class="Identifier">return</span> bv<span class="Delimiter">;</span> +<span id="L367" class="LineNr">367 </span><span class="Delimiter">}</span> +<span id="L368" class="LineNr">368 </span> +<span id="L369" class="LineNr">369 </span><span class="Delimiter">:(scenario conflicting_operand_type)</span> +<span id="L370" class="LineNr">370 </span><span class="Special">% Hide_errors = true;</span> +<span id="L371" class="LineNr">371 </span>== <span class="Constant">0x1</span> +<span id="L372" class="LineNr">372 </span>cd/software-interrupt <span class="Constant">80</span>/imm8/imm32 +<span id="L373" class="LineNr">373 </span><span class="traceContains">+error: '80/imm8/imm32' has conflicting operand types; it should have only one</span> +<span id="L374" class="LineNr">374 </span> +<span id="L375" class="LineNr">375 </span><span class="Comment">//: Instructions computing effective addresses have more complex rules, so</span> +<span id="L376" class="LineNr">376 </span><span class="Comment">//: we'll hard-code a common set of instruction-decoding rules.</span> +<span id="L377" class="LineNr">377 </span> +<span id="L378" class="LineNr">378 </span><span class="Delimiter">:(scenario check_missing_mod_operand)</span> +<span id="L379" class="LineNr">379 </span><span class="Special">% Hide_errors = true;</span> +<span id="L380" class="LineNr">380 </span>== <span class="Constant">0x1</span> +<span id="L381" class="LineNr">381 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/rm32/ebx <span class="Constant">1</span>/imm32 +<span id="L382" class="LineNr">382 </span><span class="traceContains">+error: '81 0/add/subop 3/rm32/ebx 1/imm32' (combine rm32 with <a href='011run.cc.html#L253'>imm32</a> based on subop): missing mod operand</span> +<span id="L383" class="LineNr">383 </span> +<span id="L384" class="LineNr">384 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L385" class="LineNr">385 </span>set<string> <a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">;</span> +<span id="L386" class="LineNr">386 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L387" class="LineNr">387 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"subop"</span><span class="Delimiter">);</span> +<span id="L388" class="LineNr">388 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"mod"</span><span class="Delimiter">);</span> +<span id="L389" class="LineNr">389 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"rm32"</span><span class="Delimiter">);</span> +<span id="L390" class="LineNr">390 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"base"</span><span class="Delimiter">);</span> +<span id="L391" class="LineNr">391 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"index"</span><span class="Delimiter">);</span> +<span id="L392" class="LineNr">392 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"scale"</span><span class="Delimiter">);</span> +<span id="L393" class="LineNr">393 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"r32"</span><span class="Delimiter">);</span> +<span id="L394" class="LineNr">394 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"disp8"</span><span class="Delimiter">);</span> +<span id="L395" class="LineNr">395 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"disp16"</span><span class="Delimiter">);</span> +<span id="L396" class="LineNr">396 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"disp32"</span><span class="Delimiter">);</span> +<span id="L397" class="LineNr">397 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"imm8"</span><span class="Delimiter">);</span> +<span id="L398" class="LineNr">398 </span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">.</span>insert<span class="Delimiter">(</span><span class="Constant">"imm32"</span><span class="Delimiter">);</span> +<span id="L399" class="LineNr">399 </span> +<span id="L400" class="LineNr">400 </span><span class="Delimiter">:(code)</span> +<span id="L401" class="LineNr">401 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L401'>check_operands_modrm</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L402" class="LineNr">402 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L337'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> +<span id="L403" class="LineNr">403 </span> <a href='022check_instruction.cc.html#L425'>check_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L404" class="LineNr">404 </span> <a href='022check_instruction.cc.html#L425'>check_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L405" class="LineNr">405 </span> <span class="Comment">// no check for r32; some instructions don't use it; just assume it's 0 if missing</span> +<span id="L406" class="LineNr">406 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"81"</span> || op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"8f"</span> || op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"ff"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// keep sync'd with 'help subop'</span> +<span id="L407" class="LineNr">407 </span> <a href='022check_instruction.cc.html#L425'>check_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"subop"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L408" class="LineNr">408 </span> <a href='022check_instruction.cc.html#L430'>check_metadata_absent</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"r32"</span><span class="Delimiter">,</span> op<span class="Delimiter">,</span> <span class="Constant">"should be replaced by subop"</span><span class="Delimiter">);</span> +<span id="L409" class="LineNr">409 </span> <span class="Delimiter">}</span> +<span id="L410" class="LineNr">410 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L411" class="LineNr">411 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> != <span class="Constant">"4"</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L412" class="LineNr">412 </span> <span class="Comment">// SIB byte checks</span> +<span id="L413" class="LineNr">413 </span> <span class="Normal">uint8_t</span> mod = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L414" class="LineNr">414 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>mod != <span class="Comment">/*</span><span class="Comment">direct</span><span class="Comment">*/</span><span class="Constant">3</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L415" class="LineNr">415 </span> <a href='022check_instruction.cc.html#L425'>check_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L416" class="LineNr">416 </span> <a href='022check_instruction.cc.html#L425'>check_metadata_present</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">,</span> op<span class="Delimiter">);</span> <span class="Comment">// otherwise why go to SIB?</span> +<span id="L417" class="LineNr">417 </span> <span class="Delimiter">}</span> +<span id="L418" class="LineNr">418 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L419" class="LineNr">419 </span> <a href='022check_instruction.cc.html#L430'>check_metadata_absent</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">,</span> op<span class="Delimiter">,</span> <span class="Constant">"direct mode"</span><span class="Delimiter">);</span> +<span id="L420" class="LineNr">420 </span> <a href='022check_instruction.cc.html#L430'>check_metadata_absent</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">,</span> op<span class="Delimiter">,</span> <span class="Constant">"direct mode"</span><span class="Delimiter">);</span> +<span id="L421" class="LineNr">421 </span> <span class="Delimiter">}</span> +<span id="L422" class="LineNr">422 </span> <span class="Comment">// no check for scale; 0 (2**0 = 1) by default</span> +<span id="L423" class="LineNr">423 </span><span class="Delimiter">}</span> +<span id="L424" class="LineNr">424 </span> +<span id="L425" class="LineNr">425 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L425'>check_metadata_present</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& type<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L426" class="LineNr">426 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> type<span class="Delimiter">))</span> +<span id="L427" class="LineNr">427 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">)</span> << <span class="Constant">"): missing "</span> << type << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L428" class="LineNr">428 </span><span class="Delimiter">}</span> +<span id="L429" class="LineNr">429 </span> +<span id="L430" class="LineNr">430 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L430'>check_metadata_absent</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& type<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">,</span> <span class="Normal">const</span> string& msg<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L431" class="LineNr">431 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">,</span> type<span class="Delimiter">))</span> +<span id="L432" class="LineNr">432 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010vm.cc.html#L196'>name</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">)</span> << <span class="Constant">"): unexpected "</span> << type << <span class="Constant">" operand ("</span> << msg << <span class="Constant">")</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L433" class="LineNr">433 </span><span class="Delimiter">}</span> +<span id="L434" class="LineNr">434 </span> +<span id="L435" class="LineNr">435 </span><span class="Normal">bool</span> has_metadata<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L436" class="LineNr">436 </span> <span class="Normal">bool</span> result =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L437" class="LineNr">437 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L438" class="LineNr">438 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L439" class="LineNr">439 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L440" class="LineNr">440 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' has conflicting "</span> << m << <span class="Constant">" operands</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L441" class="LineNr">441 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L442" class="LineNr">442 </span> <span class="Delimiter">}</span> +<span id="L443" class="LineNr">443 </span> result =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L444" class="LineNr">444 </span> <span class="Delimiter">}</span> +<span id="L445" class="LineNr">445 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L446" class="LineNr">446 </span><span class="Delimiter">}</span> +<span id="L447" class="LineNr">447 </span> +<span id="L448" class="LineNr">448 </span><span class="Normal">bool</span> has_metadata<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L449" class="LineNr">449 </span> <span class="Normal">bool</span> result =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L450" class="LineNr">450 </span> <span class="Normal">bool</span> metadata_found =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L451" class="LineNr">451 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span>metadata<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L452" class="LineNr">452 </span> <span class="Normal">const</span> string& curr = w<span class="Delimiter">.</span>metadata<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L453" class="LineNr">453 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L385'>Instruction_operands</a><span class="Delimiter">,</span> curr<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// ignore unrecognized metadata</span> +<span id="L454" class="LineNr">454 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>metadata_found<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L455" class="LineNr">455 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' has conflicting operand types; it should have only one</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L456" class="LineNr">456 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L457" class="LineNr">457 </span> <span class="Delimiter">}</span> +<span id="L458" class="LineNr">458 </span> metadata_found =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L459" class="LineNr">459 </span> result = <span class="Delimiter">(</span>curr == m<span class="Delimiter">);</span> +<span id="L460" class="LineNr">460 </span> <span class="Delimiter">}</span> +<span id="L461" class="LineNr">461 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L462" class="LineNr">462 </span><span class="Delimiter">}</span> +<span id="L463" class="LineNr">463 </span> +<span id="L464" class="LineNr">464 </span><a href='011run.cc.html#L113'>word</a> metadata<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> string& m<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L465" class="LineNr">465 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> +<span id="L466" class="LineNr">466 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> m<span class="Delimiter">))</span> +<span id="L467" class="LineNr">467 </span> <span class="Identifier">return</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L468" class="LineNr">468 </span> assert<span class="Delimiter">(</span><span class="Constant">false</span><span class="Delimiter">);</span> +<span id="L469" class="LineNr">469 </span><span class="Delimiter">}</span> +<span id="L470" class="LineNr">470 </span> +<span id="L471" class="LineNr">471 </span><span class="Delimiter">:(scenario conflicting_operands_in_modrm_instruction)</span> +<span id="L472" class="LineNr">472 </span><span class="Special">% Hide_errors = true;</span> +<span id="L473" class="LineNr">473 </span>== <span class="Constant">0x1</span> +<span id="L474" class="LineNr">474 </span><span class="PreProc">0</span><span class="Constant">1</span>/add <span class="Constant">0</span>/mod <span class="Constant">3</span>/mod +<span id="L475" class="LineNr">475 </span><span class="traceContains">+error: '01/add 0/mod 3/mod' has conflicting mod operands</span> +<span id="L476" class="LineNr">476 </span> +<span id="L477" class="LineNr">477 </span><span class="Delimiter">:(scenario conflicting_operand_type_modrm)</span> +<span id="L478" class="LineNr">478 </span><span class="Special">% Hide_errors = true;</span> +<span id="L479" class="LineNr">479 </span>== <span class="Constant">0x1</span> +<span id="L480" class="LineNr">480 </span><span class="PreProc">0</span><span class="Constant">1</span>/add <span class="Constant">0</span>/mod <span class="Constant">3</span>/rm32/r32 +<span id="L481" class="LineNr">481 </span><span class="traceContains">+error: '3/rm32/r32' has conflicting operand types; it should have only one</span> +<span id="L482" class="LineNr">482 </span> +<span id="L483" class="LineNr">483 </span><span class="Delimiter">:(scenario check_missing_rm32_operand)</span> +<span id="L484" class="LineNr">484 </span><span class="Special">% Hide_errors = true;</span> +<span id="L485" class="LineNr">485 </span>== <span class="Constant">0x1</span> +<span id="L486" class="LineNr">486 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod <span class="Constant">1</span>/imm32 +<span id="L487" class="LineNr">487 </span><span class="traceContains">+error: '81 0/add/subop 0/mod 1/imm32' (combine rm32 with <a href='011run.cc.html#L253'>imm32</a> based on subop): missing rm32 operand</span> +<span id="L488" class="LineNr">488 </span> +<span id="L489" class="LineNr">489 </span><span class="Delimiter">:(scenario check_missing_subop_operand)</span> +<span id="L490" class="LineNr">490 </span><span class="Special">% Hide_errors = true;</span> +<span id="L491" class="LineNr">491 </span>== <span class="Constant">0x1</span> +<span id="L492" class="LineNr">492 </span><span class="Constant">81</span> <span class="Constant">0</span>/mod <span class="Constant">3</span>/rm32/ebx <span class="Constant">1</span>/imm32 +<span id="L493" class="LineNr">493 </span><span class="traceContains">+error: '81 0/mod 3/rm32/ebx 1/imm32' (combine rm32 with <a href='011run.cc.html#L253'>imm32</a> based on subop): missing subop operand</span> +<span id="L494" class="LineNr">494 </span> +<span id="L495" class="LineNr">495 </span><span class="Delimiter">:(scenario check_missing_base_operand)</span> +<span id="L496" class="LineNr">496 </span><span class="Special">% Hide_errors = true;</span> +<span id="L497" class="LineNr">497 </span>== <span class="Constant">0x1</span> +<span id="L498" class="LineNr">498 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">1</span>/imm32 +<span id="L499" class="LineNr">499 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 1/imm32' (combine rm32 with <a href='011run.cc.html#L253'>imm32</a> based on subop): missing base operand</span> +<span id="L500" class="LineNr">500 </span> +<span id="L501" class="LineNr">501 </span><span class="Delimiter">:(scenario check_missing_index_operand)</span> +<span id="L502" class="LineNr">502 </span><span class="Special">% Hide_errors = true;</span> +<span id="L503" class="LineNr">503 </span>== <span class="Constant">0x1</span> +<span id="L504" class="LineNr">504 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">0</span>/base <span class="Constant">1</span>/imm32 +<span id="L505" class="LineNr">505 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 0/base 1/imm32' (combine rm32 with <a href='011run.cc.html#L253'>imm32</a> based on subop): missing index operand</span> +<span id="L506" class="LineNr">506 </span> +<span id="L507" class="LineNr">507 </span><span class="Delimiter">:(scenario check_missing_base_operand_2)</span> +<span id="L508" class="LineNr">508 </span><span class="Special">% Hide_errors = true;</span> +<span id="L509" class="LineNr">509 </span>== <span class="Constant">0x1</span> +<span id="L510" class="LineNr">510 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">0</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">2</span>/index <span class="Constant">3</span>/scale <span class="Constant">1</span>/imm32 +<span id="L511" class="LineNr">511 </span><span class="traceContains">+error: '81 0/add/subop 0/mod/indirect 4/rm32/use-sib 2/index 3/scale 1/imm32' (combine rm32 with <a href='011run.cc.html#L253'>imm32</a> based on subop): missing base operand</span> +<span id="L512" class="LineNr">512 </span> +<span id="L513" class="LineNr">513 </span><span class="Delimiter">:(scenario check_base_operand_not_needed_in_direct_mode)</span> +<span id="L514" class="LineNr">514 </span>== <span class="Constant">0x1</span> +<span id="L515" class="LineNr">515 </span><span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/mod/indirect <span class="Constant">4</span>/rm32/use-sib <span class="Constant">1</span>/imm32 +<span id="L516" class="LineNr">516 </span>$error: <span class="Constant">0</span> +<span id="L517" class="LineNr">517 </span> +<span id="L518" class="LineNr">518 </span><span class="SalientComment">//:: similarly handle multi-byte opcodes</span> +<span id="L519" class="LineNr">519 </span> +<span id="L520" class="LineNr">520 </span><span class="Delimiter">:(code)</span> +<span id="L521" class="LineNr">521 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L562'>check_operands_0f</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L522" class="LineNr">522 </span> assert<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">);</span> +<span id="L523" class="LineNr">523 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L524" class="LineNr">524 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"opcode '0f' requires a second opcode</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L525" class="LineNr">525 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L526" class="LineNr">526 </span> <span class="Delimiter">}</span> +<span id="L527" class="LineNr">527 </span> <a href='011run.cc.html#L113'>word</a> op = <a href='022check_instruction.cc.html#L91'>preprocess_op</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span> +<span id="L528" class="LineNr">528 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L529" class="LineNr">529 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"unknown 2-byte opcode '0f "</span> << op<span class="Delimiter">.</span>data << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L530" class="LineNr">530 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L531" class="LineNr">531 </span> <span class="Delimiter">}</span> +<span id="L532" class="LineNr">532 </span> <a href='022check_instruction.cc.html#L562'>check_operands_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L533" class="LineNr">533 </span><span class="Delimiter">}</span> +<span id="L534" class="LineNr">534 </span> +<span id="L535" class="LineNr">535 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L535'>check_operands_f3</a><span class="Delimiter">(</span><span class="Normal">const</span> line& <span class="Comment">/*</span><span class="Comment">unused</span><span class="Comment">*/</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L536" class="LineNr">536 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"no supported opcodes starting with f3</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L537" class="LineNr">537 </span><span class="Delimiter">}</span> +<span id="L538" class="LineNr">538 </span> +<span id="L539" class="LineNr">539 </span><span class="Delimiter">:(scenario check_missing_disp16_operand)</span> +<span id="L540" class="LineNr">540 </span><span class="Special">% Hide_errors = true;</span> +<span id="L541" class="LineNr">541 </span>== <span class="Constant">0x1</span> +<span id="L542" class="LineNr">542 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L543" class="LineNr">543 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L544" class="LineNr">544 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L545" class="LineNr">545 </span> <span class="Constant">0f</span> <span class="Constant">84</span> <span class="Comment"># jmp if ZF to ??</span> +<span id="L546" class="LineNr">546 </span><span class="traceContains">+error: '0f 84' (jump disp16 bytes away if ZF is set): missing disp16 operand</span> +<span id="L547" class="LineNr">547 </span> +<span id="L548" class="LineNr">548 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L549" class="LineNr">549 </span>map<<span class="Comment">/*</span><span class="Comment">op</span><span class="Comment">*/</span>string<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">bitvector</span><span class="Comment">*/</span><span class="Normal">uint8_t</span>> <a href='022check_instruction.cc.html#L549'>Permitted_operands_0f</a><span class="Delimiter">;</span> +<span id="L550" class="LineNr">550 </span><span class="Delimiter">:(before "End Init Permitted Operands")</span> +<span id="L551" class="LineNr">551 </span><span class="SalientComment">//// Class C: just op and disp16</span> +<span id="L552" class="LineNr">552 </span><span class="Comment">// imm32 imm8 disp32 |disp16 disp8 subop modrm</span> +<span id="L553" class="LineNr">553 </span><span class="Comment">// 0 0 0 |1 0 0 0</span> +<span id="L554" class="LineNr">554 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L549'>Permitted_operands_0f</a><span class="Delimiter">,</span> <span class="Constant">"84"</span><span class="Delimiter">,</span> <span class="Constant">0x08</span><span class="Delimiter">);</span> +<span id="L555" class="LineNr">555 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L549'>Permitted_operands_0f</a><span class="Delimiter">,</span> <span class="Constant">"85"</span><span class="Delimiter">,</span> <span class="Constant">0x08</span><span class="Delimiter">);</span> +<span id="L556" class="LineNr">556 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L549'>Permitted_operands_0f</a><span class="Delimiter">,</span> <span class="Constant">"8c"</span><span class="Delimiter">,</span> <span class="Constant">0x08</span><span class="Delimiter">);</span> +<span id="L557" class="LineNr">557 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L549'>Permitted_operands_0f</a><span class="Delimiter">,</span> <span class="Constant">"8d"</span><span class="Delimiter">,</span> <span class="Constant">0x08</span><span class="Delimiter">);</span> +<span id="L558" class="LineNr">558 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L549'>Permitted_operands_0f</a><span class="Delimiter">,</span> <span class="Constant">"8e"</span><span class="Delimiter">,</span> <span class="Constant">0x08</span><span class="Delimiter">);</span> +<span id="L559" class="LineNr">559 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L549'>Permitted_operands_0f</a><span class="Delimiter">,</span> <span class="Constant">"8f"</span><span class="Delimiter">,</span> <span class="Constant">0x08</span><span class="Delimiter">);</span> +<span id="L560" class="LineNr">560 </span> +<span id="L561" class="LineNr">561 </span><span class="Delimiter">:(code)</span> +<span id="L562" class="LineNr">562 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L562'>check_operands_0f</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L563" class="LineNr">563 </span> <span class="Normal">uint8_t</span> expected_bitvector = get<span class="Delimiter">(</span><a href='022check_instruction.cc.html#L549'>Permitted_operands_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L564" class="LineNr">564 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L264'>HAS</a><span class="Delimiter">(</span>expected_bitvector<span class="Delimiter">,</span> <a href='022check_instruction.cc.html#L105'>MODRM</a><span class="Delimiter">))</span> +<span id="L565" class="LineNr">565 </span> <a href='022check_instruction.cc.html#L401'>check_operands_modrm</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> op<span class="Delimiter">);</span> +<span id="L566" class="LineNr">566 </span> <a href='022check_instruction.cc.html#L569'>compare_bitvector_0f</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> <a href='022check_instruction.cc.html#L266'>CLEAR</a><span class="Delimiter">(</span>expected_bitvector<span class="Delimiter">,</span> <a href='022check_instruction.cc.html#L105'>MODRM</a><span class="Delimiter">),</span> op<span class="Delimiter">);</span> +<span id="L567" class="LineNr">567 </span><span class="Delimiter">}</span> +<span id="L568" class="LineNr">568 </span> +<span id="L569" class="LineNr">569 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L569'>compare_bitvector_0f</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">,</span> <span class="Normal">uint8_t</span> expected<span class="Delimiter">,</span> <span class="Normal">const</span> word& op<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L570" class="LineNr">570 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L337'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> && <a href='022check_instruction.cc.html#L322'>has_operands</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// deliberately programming in raw hex; we'll raise a warning elsewhere</span> +<span id="L571" class="LineNr">571 </span> <span class="Normal">uint8_t</span> bitvector = <a href='022check_instruction.cc.html#L313'>compute_operand_bitvector</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L572" class="LineNr">572 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// duplicate operand type</span> +<span id="L573" class="LineNr">573 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>bitvector == expected<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// all good with this instruction</span> +<span id="L574" class="LineNr">574 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='022check_instruction.cc.html#L112'>NUM_OPERAND_TYPES</a><span class="Delimiter">;</span> ++i<span class="Delimiter">,</span> bitvector >>= <span class="Constant">1</span><span class="Delimiter">,</span> expected >>= <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L575" class="LineNr">575 </span><span class="CommentedCode">//? cerr << "comparing " << HEXBYTE << NUM(bitvector) << " with " << NUM(expected) << '\n';</span> +<span id="L576" class="LineNr">576 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> == <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// all good with this operand</span> +<span id="L577" class="LineNr">577 </span> <span class="Normal">const</span> string& optype = <a href='022check_instruction.cc.html#L115'>Operand_type_name</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L578" class="LineNr">578 </span> <span class="Normal">if</span> <span class="Delimiter">((</span>bitvector & <span class="Constant">0x1</span><span class="Delimiter">)</span> > <span class="Delimiter">(</span>expected & <span class="Constant">0x1</span><span class="Delimiter">))</span> +<span id="L579" class="LineNr">579 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">)</span> << <span class="Constant">"): unexpected "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L580" class="LineNr">580 </span> <span class="Normal">else</span> +<span id="L581" class="LineNr">581 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"' ("</span> << get<span class="Delimiter">(</span><a href='010vm.cc.html#L197'>name_0f</a><span class="Delimiter">,</span> op<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">)</span> << <span class="Constant">"): missing "</span> << optype << <span class="Constant">" operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L582" class="LineNr">582 </span> <span class="Comment">// continue giving all errors for a single instruction</span> +<span id="L583" class="LineNr">583 </span> <span class="Delimiter">}</span> +<span id="L584" class="LineNr">584 </span> <span class="Comment">// ignore settings in any unused bits</span> +<span id="L585" class="LineNr">585 </span><span class="Delimiter">}</span> +<span id="L586" class="LineNr">586 </span> +<span id="L587" class="LineNr">587 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L588" class="LineNr">588 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L589" class="LineNr">589 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L590" class="LineNr">590 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> +<span id="L591" class="LineNr">591 </span> out << inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L114'>original</a><span class="Delimiter">;</span> +<span id="L592" class="LineNr">592 </span> <span class="Delimiter">}</span> +<span id="L593" class="LineNr">593 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L594" class="LineNr">594 </span><span class="Delimiter">}</span> +<span id="L595" class="LineNr">595 </span> +<span id="L596" class="LineNr">596 </span>string <a href='022check_instruction.cc.html#L596'>tolower</a><span class="Delimiter">(</span><span class="Normal">const</span> <span class="Normal">char</span>* s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L597" class="LineNr">597 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L598" class="LineNr">598 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">nada</span><span class="Comment">*/</span><span class="Delimiter">;</span> *s<span class="Delimiter">;</span> ++s<span class="Delimiter">)</span> +<span id="L599" class="LineNr">599 </span> out << <span class="Normal">static_cast</span><<span class="Normal">char</span>><span class="Delimiter">(</span><a href='022check_instruction.cc.html#L596'>tolower</a><span class="Delimiter">(</span>*s<span class="Delimiter">));</span> +<span id="L600" class="LineNr">600 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L601" class="LineNr">601 </span><span class="Delimiter">}</span> +<span id="L602" class="LineNr">602 </span> +<span id="L603" class="LineNr">603 </span><span class="SalientComment">//:: docs on each operand type</span> +<span id="L604" class="LineNr">604 </span> +<span id="L605" class="LineNr">605 </span><span class="Delimiter">:(before "End <a href='001help.cc.html#L53'>Help</a> Texts")</span> +<span id="L606" class="LineNr">606 </span><a href='022check_instruction.cc.html#L608'>init_operand_type_help</a><span class="Delimiter">();</span> +<span id="L607" class="LineNr">607 </span><span class="Delimiter">:(code)</span> +<span id="L608" class="LineNr">608 </span><span class="Normal">void</span> <a href='022check_instruction.cc.html#L608'>init_operand_type_help</a><span class="Delimiter">()</span> <span class="Delimiter">{</span> +<span id="L609" class="LineNr">609 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">,</span> +<span id="L610" class="LineNr">610 </span> <span class="Constant">"2-bit operand controlling the _addressing mode_ of many instructions,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L611" class="LineNr">611 </span> <span class="Constant">"to determine how to compute the _effective address_ to look up memory at</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L612" class="LineNr">612 </span> <span class="Constant">"based on the 'rm32' operand and potentially others.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L613" class="LineNr">613 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L614" class="LineNr">614 </span> <span class="Constant">"If mod = 3, just operate on the <a href='003trace.cc.html#L74'>contents</a> of the register specified by rm32</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L615" class="LineNr">615 </span> <span class="Constant">" (direct mode).</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L616" class="LineNr">616 </span> <span class="Constant">"If mod = 2, effective address is usually* rm32 + disp32</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L617" class="LineNr">617 </span> <span class="Constant">" (indirect mode with displacement).</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L618" class="LineNr">618 </span> <span class="Constant">"If mod = 1, effective address is usually* rm32 + disp8</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L619" class="LineNr">619 </span> <span class="Constant">" (indirect mode with displacement).</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L620" class="LineNr">620 </span> <span class="Constant">"If mod = 0, effective address is usually* rm32 (indirect mode).</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L621" class="LineNr">621 </span> <span class="Constant">"(* - The exception is when rm32 is '4'. Register 4 is the stack pointer (ESP).</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L622" class="LineNr">622 </span> <span class="Constant">" Using it as an address gets more involved. For more details,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L623" class="LineNr">623 </span> <span class="Constant">" try reading the help pages for 'base', 'index' and 'scale'.)</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L624" class="LineNr">624 </span> <span class="Constant">"</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L625" class="LineNr">625 </span> <span class="Constant">"For complete details consult the IA-32 software developer's manual, table 2-2,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L626" class="LineNr">626 </span> <span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">32-bit addressing forms with the ModR/M byte</span><span class="cSpecial">\"</span><span class="Constant">.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L627" class="LineNr">627 </span> <span class="Constant">" <a href="https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf">https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L628" class="LineNr">628 </span> <span class="Delimiter">);</span> +<span id="L629" class="LineNr">629 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"subop"</span><span class="Delimiter">,</span> +<span id="L630" class="LineNr">630 </span> <span class="Constant">"Additional 3-bit operand for determining the instruction when the opcode is 81, 8f or ff.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L631" class="LineNr">631 </span> <span class="Constant">"Can't coexist with operand of type 'r32' in a single instruction, because the two use the same bits.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L632" class="LineNr">632 </span> <span class="Delimiter">);</span> +<span id="L633" class="LineNr">633 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"r32"</span><span class="Delimiter">,</span> +<span id="L634" class="LineNr">634 </span> <span class="Constant">"3-bit operand specifying a register operand used directly, without any further addressing modes.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L635" class="LineNr">635 </span> <span class="Delimiter">);</span> +<span id="L636" class="LineNr">636 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">,</span> +<span id="L637" class="LineNr">637 </span> <span class="Constant">"3-bit operand specifying a register operand whose precise interpretation interacts with 'mod'.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L638" class="LineNr">638 </span> <span class="Constant">"For complete details consult the IA-32 software developer's manual, table 2-2,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L639" class="LineNr">639 </span> <span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">32-bit addressing forms with the ModR/M byte</span><span class="cSpecial">\"</span><span class="Constant">.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L640" class="LineNr">640 </span> <span class="Constant">" <a href="https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf">https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L641" class="LineNr">641 </span> <span class="Delimiter">);</span> +<span id="L642" class="LineNr">642 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">,</span> +<span id="L643" class="LineNr">643 </span> <span class="Constant">"Additional 3-bit operand (when 'rm32' is 4 unless 'mod' is 3) specifying the register containing an address to look up.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L644" class="LineNr">644 </span> <span class="Constant">"This address may be further modified by 'index' and 'scale' operands.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L645" class="LineNr">645 </span> <span class="Constant">" effective address = base + index*scale + displacement (disp8 or disp32)</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L646" class="LineNr">646 </span> <span class="Constant">"For complete details consult the IA-32 software developer's manual, table 2-3,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L647" class="LineNr">647 </span> <span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">32-bit addressing forms with the SIB byte</span><span class="cSpecial">\"</span><span class="Constant">.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L648" class="LineNr">648 </span> <span class="Constant">" <a href="https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf">https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L649" class="LineNr">649 </span> <span class="Delimiter">);</span> +<span id="L650" class="LineNr">650 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">,</span> +<span id="L651" class="LineNr">651 </span> <span class="Constant">"Optional 3-bit operand (when 'rm32' is 4 unless 'mod' is 3) that can be added to the 'base' operand to compute the 'effective address' at which to look up memory.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L652" class="LineNr">652 </span> <span class="Constant">" effective address = base + index*scale + displacement (disp8 or disp32)</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L653" class="LineNr">653 </span> <span class="Constant">"For complete details consult the IA-32 software developer's manual, table 2-3,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L654" class="LineNr">654 </span> <span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">32-bit addressing forms with the SIB byte</span><span class="cSpecial">\"</span><span class="Constant">.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L655" class="LineNr">655 </span> <span class="Constant">" <a href="https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf">https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L656" class="LineNr">656 </span> <span class="Delimiter">);</span> +<span id="L657" class="LineNr">657 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"scale"</span><span class="Delimiter">,</span> +<span id="L658" class="LineNr">658 </span> <span class="Constant">"Optional 2-bit operand (when 'rm32' is 4 unless 'mod' is 3) that can be multiplied to the 'index' operand before adding the result to the 'base' operand to compute the _effective address_ to operate on.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L659" class="LineNr">659 </span> <span class="Constant">" effective address = base + index * scale + displacement (disp8 or disp32)</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L660" class="LineNr">660 </span> <span class="Constant">"For complete details consult the IA-32 software developer's manual, table 2-3,</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L661" class="LineNr">661 </span> <span class="Constant">"</span><span class="cSpecial">\"</span><span class="Constant">32-bit addressing forms with the SIB byte</span><span class="cSpecial">\"</span><span class="Constant">.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L662" class="LineNr">662 </span> <span class="Constant">" <a href="https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf">https://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.pdf</a></span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L663" class="LineNr">663 </span> <span class="Delimiter">);</span> +<span id="L664" class="LineNr">664 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"disp8"</span><span class="Delimiter">,</span> +<span id="L665" class="LineNr">665 </span> <span class="Constant">"8-bit value to be added in many instructions.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L666" class="LineNr">666 </span> <span class="Delimiter">);</span> +<span id="L667" class="LineNr">667 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"disp16"</span><span class="Delimiter">,</span> +<span id="L668" class="LineNr">668 </span> <span class="Constant">"16-bit value to be added in many instructions.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L669" class="LineNr">669 </span> <span class="Delimiter">);</span> +<span id="L670" class="LineNr">670 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">,</span> +<span id="L671" class="LineNr">671 </span> <span class="Constant">"32-bit value to be added in many instructions.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L672" class="LineNr">672 </span> <span class="Delimiter">);</span> +<span id="L673" class="LineNr">673 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"imm8"</span><span class="Delimiter">,</span> +<span id="L674" class="LineNr">674 </span> <span class="Constant">"8-bit value for many instructions.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L675" class="LineNr">675 </span> <span class="Delimiter">);</span> +<span id="L676" class="LineNr">676 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='001help.cc.html#L53'>Help</a><span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">,</span> +<span id="L677" class="LineNr">677 </span> <span class="Constant">"32-bit value for many instructions.</span><span class="cSpecial">\n</span><span class="Constant">"</span> +<span id="L678" class="LineNr">678 </span> <span class="Delimiter">);</span> +<span id="L679" class="LineNr">679 </span><span class="Delimiter">}</span> +<span id="L680" class="LineNr">680 </span> +<span id="L681" class="LineNr">681 </span><span class="Delimiter">:(before "End Includes")</span> +<span id="L682" class="LineNr">682 </span><span class="Comment">#include<cctype></span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/023check_operand_bounds.cc.html b/html/subx/023check_operand_bounds.cc.html new file mode 100644 index 00000000..f86b5dd4 --- /dev/null +++ b/html/subx/023check_operand_bounds.cc.html @@ -0,0 +1,141 @@ +<!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 - subx/023check_operand_bounds.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.Special { color: #c00000; } +.Comment { color: #9090ff; } +.Comment a { color:#0000ee; text-decoration:underline; } +.SalientComment { color: #00ffff; } +.Delimiter { color: #800080; } +.LineNr { color: #444444; } +.Identifier { color: #c0a020; } +.Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; } +.PreProc { color: #800080; } +.traceContains { color: #008000; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="SalientComment">//:: Check that the different operands of an instruction aren't too large for their bitfields.</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(scenario check_bitfield_sizes)</span> +<span id="L4" class="LineNr"> 4 </span><span class="Special">% Hide_errors = true;</span> +<span id="L5" class="LineNr"> 5 </span>== <span class="Constant">0x1</span> +<span id="L6" class="LineNr"> 6 </span><span class="PreProc">0</span><span class="Constant">1</span>/add <span class="Constant">4</span>/mod +<span id="L7" class="LineNr"> 7 </span><span class="traceContains">+error: '4/mod' too large to fit in bitfield mod</span> +<span id="L8" class="LineNr"> 8 </span> +<span id="L9" class="LineNr"> 9 </span><span class="Delimiter">:(before "End Globals")</span> +<span id="L10" class="LineNr">10 </span>map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>> <a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">;</span> +<span id="L11" class="LineNr">11 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L12" class="LineNr">12 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"subop"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">3</span><span class="Delimiter">);</span> +<span id="L13" class="LineNr">13 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L14" class="LineNr">14 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">3</span><span class="Delimiter">);</span> +<span id="L15" class="LineNr">15 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">3</span><span class="Delimiter">);</span> +<span id="L16" class="LineNr">16 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">3</span><span class="Delimiter">);</span> +<span id="L17" class="LineNr">17 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"scale"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L18" class="LineNr">18 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"r32"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">3</span><span class="Delimiter">);</span> +<span id="L19" class="LineNr">19 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"disp8"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">8</span><span class="Delimiter">);</span> +<span id="L20" class="LineNr">20 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"disp16"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">16</span><span class="Delimiter">);</span> +<span id="L21" class="LineNr">21 </span><span class="Comment">// no bound needed for disp32</span> +<span id="L22" class="LineNr">22 </span><a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">,</span> <span class="Constant">"imm8"</span><span class="Delimiter">,</span> <span class="Constant">1</span><<<span class="Constant">8</span><span class="Delimiter">);</span> +<span id="L23" class="LineNr">23 </span><span class="Comment">// no bound needed for imm32</span> +<span id="L24" class="LineNr">24 </span> +<span id="L25" class="LineNr">25 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L26" class="LineNr">26 </span><a href='011run.cc.html#L184'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>check_operand_bounds<span class="Delimiter">);</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> check_operand_bounds<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">const</span><span class="Comment">*/</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L29" class="LineNr">29 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- check operand bounds"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L30" class="LineNr">30 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L31" class="LineNr">31 </span> <span class="Normal">const</span> segment& code = p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L32" class="LineNr">32 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L33" class="LineNr">33 </span> <span class="Normal">const</span> line& inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L34" class="LineNr">34 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <a href='022check_instruction.cc.html#L326'>first_operand</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> +<span id="L35" class="LineNr">35 </span> check_operand_bounds<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">));</span> +<span id="L36" class="LineNr">36 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// stop at the first mal-formed instruction</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="Normal">void</span> check_operand_bounds<span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L41" class="LineNr">41 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>::iterator p = <a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L42" class="LineNr">42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!has_metadata<span class="Delimiter">(</span>w<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L43" class="LineNr">43 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_int<span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// later transforms are on their own to do their own bounds checking</span> +<span id="L44" class="LineNr">44 </span> <span class="Normal">int32_t</span> x = <a href='023check_operand_bounds.cc.html#L65'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L45" class="LineNr">45 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>x >= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L46" class="LineNr">46 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span>x<span class="Delimiter">)</span> >= p<span class="Delimiter">-></span>second<span class="Delimiter">)</span> +<span id="L47" class="LineNr">47 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' too large to fit in bitfield "</span> << p<span class="Delimiter">-></span>first << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L48" class="LineNr">48 </span> <span class="Delimiter">}</span> +<span id="L49" class="LineNr">49 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L50" class="LineNr">50 </span> <span class="Comment">// hacky? assuming bound is a power of 2</span> +<span id="L51" class="LineNr">51 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>x < -<span class="Constant">1</span>*<span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span>p<span class="Delimiter">-></span>second/<span class="Constant">2</span><span class="Delimiter">))</span> +<span id="L52" class="LineNr">52 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << w<span class="Delimiter">.</span>original << <span class="Constant">"' too large to fit in bitfield "</span> << p<span class="Delimiter">-></span>first << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L53" class="LineNr">53 </span> <span class="Delimiter">}</span> +<span id="L54" class="LineNr">54 </span> <span class="Delimiter">}</span> +<span id="L55" class="LineNr">55 </span><span class="Delimiter">}</span> +<span id="L56" class="LineNr">56 </span> +<span id="L57" class="LineNr">57 </span><span class="Normal">bool</span> <a href='023check_operand_bounds.cc.html#L57'>is_hex_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L58" class="LineNr">58 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L59" class="LineNr">59 </span> <span class="Normal">size_t</span> pos = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L60" class="LineNr">60 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'-'</span> || s<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">'+'</span><span class="Delimiter">)</span> pos++<span class="Delimiter">;</span> +<span id="L61" class="LineNr">61 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>substr<span class="Delimiter">(</span>pos<span class="Delimiter">,</span> pos+<span class="Constant">2</span><span class="Delimiter">)</span> == <span class="Constant">"0x"</span><span class="Delimiter">)</span> pos += <span class="Constant">2</span><span class="Delimiter">;</span> +<span id="L62" class="LineNr">62 </span> <span class="Identifier">return</span> s<span class="Delimiter">.</span>find_first_not_of<span class="Delimiter">(</span><span class="Constant">"0123456789abcdefABCDEF"</span><span class="Delimiter">,</span> pos<span class="Delimiter">)</span> == string::npos<span class="Delimiter">;</span> +<span id="L63" class="LineNr">63 </span><span class="Delimiter">}</span> +<span id="L64" class="LineNr">64 </span> +<span id="L65" class="LineNr">65 </span><span class="Normal">int32_t</span> <a href='023check_operand_bounds.cc.html#L65'>parse_int</a><span class="Delimiter">(</span><span class="Normal">const</span> string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L66" class="LineNr">66 </span> istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span> +<span id="L67" class="LineNr">67 </span> <span class="Normal">int32_t</span> result = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L68" class="LineNr">68 </span> in >> std::hex >> result<span class="Delimiter">;</span> +<span id="L69" class="LineNr">69 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!in || !in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Delimiter">{</span> +<span id="L70" class="LineNr">70 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"not a number: "</span> << s << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L71" class="LineNr">71 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L72" class="LineNr">72 </span> <span class="Delimiter">}</span> +<span id="L73" class="LineNr">73 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L74" class="LineNr">74 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/024pack_operands.cc.html b/html/subx/024pack_operands.cc.html new file mode 100644 index 00000000..ced3cdc2 --- /dev/null +++ b/html/subx/024pack_operands.cc.html @@ -0,0 +1,277 @@ +<!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 - subx/024pack_operands.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.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; } +.traceContains { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Operands can refer to bitfields smaller than a byte. This layer packs</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: operands into their containing bytes in the right order.</span> +<span id="L3" class="LineNr"> 3 </span> +<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(scenario pack_immediate_constants)</span> +<span id="L5" class="LineNr"> 5 </span>== <span class="Constant">0x1</span> +<span id="L6" class="LineNr"> 6 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L7" class="LineNr"> 7 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L8" class="LineNr"> 8 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L9" class="LineNr"> 9 </span> bb <span class="Constant">0x2a</span>/imm32 <span class="Comment"># copy 42 to EBX</span> +<span id="L10" class="LineNr"> 10 </span><span class="traceContains">+transform: packing instruction 'bb 0x2a/imm32'</span> +<span id="L11" class="LineNr"> 11 </span><span class="traceContains">+transform: instruction after packing: 'bb 2a 00 00 00'</span> +<span id="L12" class="LineNr"> 12 </span><span class="traceContains">+run: copy <a href='011run.cc.html#L253'>imm32</a> 0x0000002a to <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L13" class="LineNr"> 13 </span> +<span id="L14" class="LineNr"> 14 </span><span class="Delimiter">:(scenario pack_disp8)</span> +<span id="L15" class="LineNr"> 15 </span>== <span class="Constant">0x1</span> +<span id="L16" class="LineNr"> 16 </span><span class="Constant">74</span> <span class="Constant">2</span>/disp8 <span class="Comment"># jump 2 bytes away if ZF is set</span> +<span id="L17" class="LineNr"> 17 </span><span class="traceContains">+transform: packing instruction '74 2/disp8'</span> +<span id="L18" class="LineNr"> 18 </span><span class="traceContains">+transform: instruction after packing: '74 02'</span> +<span id="L19" class="LineNr"> 19 </span> +<span id="L20" class="LineNr"> 20 </span><span class="Delimiter">:(scenarios transform)</span> +<span id="L21" class="LineNr"> 21 </span><span class="Delimiter">:(scenario pack_disp8_negative)</span> +<span id="L22" class="LineNr"> 22 </span>== <span class="Constant">0x1</span> +<span id="L23" class="LineNr"> 23 </span><span class="Comment"># running this will cause an infinite loop</span> +<span id="L24" class="LineNr"> 24 </span><span class="Constant">74</span> -<span class="Constant">1</span>/disp8 <span class="Comment"># jump 1 byte before if ZF is set</span> +<span id="L25" class="LineNr"> 25 </span><span class="traceContains">+transform: packing instruction '74 -1/disp8'</span> +<span id="L26" class="LineNr"> 26 </span><span class="traceContains">+transform: instruction after packing: '74 ff'</span> +<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">:(scenarios run)</span> +<span id="L28" class="LineNr"> 28 </span> +<span id="L29" class="LineNr"> 29 </span><span class="Delimiter">:(scenario pack_modrm_imm32)</span> +<span id="L30" class="LineNr"> 30 </span>== <span class="Constant">0x1</span> +<span id="L31" class="LineNr"> 31 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L32" class="LineNr"> 32 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L33" class="LineNr"> 33 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Constant">81</span> <span class="Constant">0</span>/add/subop <span class="Constant">3</span>/mod/direct <span class="Constant">3</span>/ebx/rm32 <span class="Constant">1</span>/imm32 <span class="Comment"># add 1 to EBX</span> +<span id="L35" class="LineNr"> 35 </span><span class="traceContains">+transform: packing instruction '81 0/add/subop 3/mod/direct 3/ebx/rm32 1/imm32'</span> +<span id="L36" class="LineNr"> 36 </span><span class="traceContains">+transform: instruction after packing: '81 c3 01 00 00 00'</span> +<span id="L37" class="LineNr"> 37 </span> +<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(scenario pack_imm32_large)</span> +<span id="L39" class="LineNr"> 39 </span>== <span class="Constant">0x1</span> +<span id="L40" class="LineNr"> 40 </span>b9 <span class="Constant">0x080490a7</span>/imm32 <span class="Comment"># copy to ECX</span> +<span id="L41" class="LineNr"> 41 </span><span class="traceContains">+transform: packing instruction 'b9 0x080490a7/imm32'</span> +<span id="L42" class="LineNr"> 42 </span><span class="traceContains">+transform: instruction after packing: 'b9 a7 90 04 08'</span> +<span id="L43" class="LineNr"> 43 </span> +<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L45" class="LineNr"> 45 </span><a href='011run.cc.html#L184'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pack_operands<span class="Delimiter">);</span> +<span id="L46" class="LineNr"> 46 </span> +<span id="L47" class="LineNr"> 47 </span><span class="Delimiter">:(code)</span> +<span id="L48" class="LineNr"> 48 </span><span class="Normal">void</span> pack_operands<span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L49" class="LineNr"> 49 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- pack operands"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L51" class="LineNr"> 51 </span> segment& code = p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L53" class="LineNr"> 53 </span> line& inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L337'>all_hex_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> +<span id="L55" class="LineNr"> 55 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"packing instruction '"</span> << to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">with metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L56" class="LineNr"> 56 </span> pack_operands<span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L57" class="LineNr"> 57 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after packing: '"</span> << to_string<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">without metadata</span><span class="Comment">*/</span>inst<span class="Delimiter">.</span>words<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Delimiter">}</span> +<span id="L59" class="LineNr"> 59 </span><span class="Delimiter">}</span> +<span id="L60" class="LineNr"> 60 </span> +<span id="L61" class="LineNr"> 61 </span><span class="Normal">void</span> pack_operands<span class="Delimiter">(</span>line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L62" class="LineNr"> 62 </span> <a href='011run.cc.html#L108'>line</a> new_inst<span class="Delimiter">;</span> +<span id="L63" class="LineNr"> 63 </span> <a href='024pack_operands.cc.html#L71'>add_opcodes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> +<span id="L64" class="LineNr"> 64 </span> <a href='024pack_operands.cc.html#L79'>add_modrm_byte</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> +<span id="L65" class="LineNr"> 65 </span> <a href='024pack_operands.cc.html#L105'>add_sib_byte</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> +<span id="L66" class="LineNr"> 66 </span> <a href='024pack_operands.cc.html#L127'>add_disp_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> +<span id="L67" class="LineNr"> 67 </span> <a href='024pack_operands.cc.html#L139'>add_imm_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">,</span> new_inst<span class="Delimiter">);</span> +<span id="L68" class="LineNr"> 68 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> +<span id="L69" class="LineNr"> 69 </span><span class="Delimiter">}</span> +<span id="L70" class="LineNr"> 70 </span> +<span id="L71" class="LineNr"> 71 </span><span class="Normal">void</span> <a href='024pack_operands.cc.html#L71'>add_opcodes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L72" class="LineNr"> 72 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"0f"</span> || in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"f3"</span><span class="Delimiter">)</span> +<span id="L74" class="LineNr"> 74 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span> +<span id="L75" class="LineNr"> 75 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"f3"</span> && in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a> == <span class="Constant">"0f"</span><span class="Delimiter">)</span> +<span id="L76" class="LineNr"> 76 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">));</span> +<span id="L77" class="LineNr"> 77 </span><span class="Delimiter">}</span> +<span id="L78" class="LineNr"> 78 </span> +<span id="L79" class="LineNr"> 79 </span><span class="Normal">void</span> <a href='024pack_operands.cc.html#L79'>add_modrm_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L80" class="LineNr"> 80 </span> <span class="Normal">uint8_t</span> mod=<span class="Constant">0</span><span class="Delimiter">,</span> reg_subop=<span class="Constant">0</span><span class="Delimiter">,</span> rm32=<span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L81" class="LineNr"> 81 </span> <span class="Normal">bool</span> emit =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"mod"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L85" class="LineNr"> 85 </span> mod = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L86" class="LineNr"> 86 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L87" class="LineNr"> 87 </span> <span class="Delimiter">}</span> +<span id="L88" class="LineNr"> 88 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"rm32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L89" class="LineNr"> 89 </span> rm32 = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L90" class="LineNr"> 90 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L91" class="LineNr"> 91 </span> <span class="Delimiter">}</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"r32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L93" class="LineNr"> 93 </span> reg_subop = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L94" class="LineNr"> 94 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Delimiter">}</span> +<span id="L96" class="LineNr"> 96 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"subop"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L97" class="LineNr"> 97 </span> reg_subop = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L98" class="LineNr"> 98 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L99" class="LineNr"> 99 </span> <span class="Delimiter">}</span> +<span id="L100" class="LineNr">100 </span> <span class="Delimiter">}</span> +<span id="L101" class="LineNr">101 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>emit<span class="Delimiter">)</span> +<span id="L102" class="LineNr">102 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='024pack_operands.cc.html#L166'>hex_byte_text</a><span class="Delimiter">((</span>mod << <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>reg_subop << <span class="Constant">3</span><span class="Delimiter">)</span> | rm32<span class="Delimiter">));</span> +<span id="L103" class="LineNr">103 </span><span class="Delimiter">}</span> +<span id="L104" class="LineNr">104 </span> +<span id="L105" class="LineNr">105 </span><span class="Normal">void</span> <a href='024pack_operands.cc.html#L105'>add_sib_byte</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L106" class="LineNr">106 </span> <span class="Normal">uint8_t</span> scale=<span class="Constant">0</span><span class="Delimiter">,</span> index=<span class="Constant">0</span><span class="Delimiter">,</span> base=<span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L107" class="LineNr">107 </span> <span class="Normal">bool</span> emit =<span class="Constant"> false</span><span class="Delimiter">;</span> +<span id="L108" class="LineNr">108 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L109" class="LineNr">109 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L110" class="LineNr">110 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"scale"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L111" class="LineNr">111 </span> scale = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L112" class="LineNr">112 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L113" class="LineNr">113 </span> <span class="Delimiter">}</span> +<span id="L114" class="LineNr">114 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"index"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L115" class="LineNr">115 </span> index = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L116" class="LineNr">116 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L117" class="LineNr">117 </span> <span class="Delimiter">}</span> +<span id="L118" class="LineNr">118 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"base"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L119" class="LineNr">119 </span> base = <a href='011run.cc.html#L222'>hex_byte</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">);</span> +<span id="L120" class="LineNr">120 </span> emit =<span class="Constant"> true</span><span class="Delimiter">;</span> +<span id="L121" class="LineNr">121 </span> <span class="Delimiter">}</span> +<span id="L122" class="LineNr">122 </span> <span class="Delimiter">}</span> +<span id="L123" class="LineNr">123 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>emit<span class="Delimiter">)</span> +<span id="L124" class="LineNr">124 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='024pack_operands.cc.html#L166'>hex_byte_text</a><span class="Delimiter">((</span>scale << <span class="Constant">6</span><span class="Delimiter">)</span> | <span class="Delimiter">(</span>index << <span class="Constant">3</span><span class="Delimiter">)</span> | base<span class="Delimiter">));</span> +<span id="L125" class="LineNr">125 </span><span class="Delimiter">}</span> +<span id="L126" class="LineNr">126 </span> +<span id="L127" class="LineNr">127 </span><span class="Normal">void</span> <a href='024pack_operands.cc.html#L127'>add_disp_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L128" class="LineNr">128 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L129" class="LineNr">129 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L130" class="LineNr">130 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp8"</span><span class="Delimiter">))</span> +<span id="L131" class="LineNr">131 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L132" class="LineNr">132 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp16"</span><span class="Delimiter">))</span> +<span id="L133" class="LineNr">133 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">);</span> +<span id="L134" class="LineNr">134 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">))</span> +<span id="L135" class="LineNr">135 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L136" class="LineNr">136 </span> <span class="Delimiter">}</span> +<span id="L137" class="LineNr">137 </span><span class="Delimiter">}</span> +<span id="L138" class="LineNr">138 </span> +<span id="L139" class="LineNr">139 </span><span class="Normal">void</span> <a href='024pack_operands.cc.html#L139'>add_imm_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& in<span class="Delimiter">,</span> line& out<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L140" class="LineNr">140 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L141" class="LineNr">141 </span> <span class="Normal">const</span> word& curr = in<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L142" class="LineNr">142 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm8"</span><span class="Delimiter">))</span> +<span id="L143" class="LineNr">143 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L144" class="LineNr">144 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span> +<span id="L145" class="LineNr">145 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> curr<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L146" class="LineNr">146 </span> <span class="Delimiter">}</span> +<span id="L147" class="LineNr">147 </span><span class="Delimiter">}</span> +<span id="L148" class="LineNr">148 </span> +<span id="L149" class="LineNr">149 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line& out<span class="Delimiter">,</span> <span class="Normal">const</span> word& w<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L150" class="LineNr">150 </span> assert<span class="Delimiter">(</span>num <= <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L151" class="LineNr">151 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_hex_int<span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L152" class="LineNr">152 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>w<span class="Delimiter">);</span> +<span id="L153" class="LineNr">153 </span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L154" class="LineNr">154 </span> <span class="Delimiter">}</span> +<span id="L155" class="LineNr">155 </span> emit_hex_bytes<span class="Delimiter">(</span>out<span class="Delimiter">,</span> <span class="Normal">static_cast</span><<span class="Normal">uint32_t</span>><span class="Delimiter">(</span><a href='023check_operand_bounds.cc.html#L65'>parse_int</a><span class="Delimiter">(</span>w<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">)),</span> num<span class="Delimiter">);</span> +<span id="L156" class="LineNr">156 </span><span class="Delimiter">}</span> +<span id="L157" class="LineNr">157 </span> +<span id="L158" class="LineNr">158 </span><span class="Normal">void</span> emit_hex_bytes<span class="Delimiter">(</span>line& out<span class="Delimiter">,</span> <span class="Normal">uint32_t</span> val<span class="Delimiter">,</span> <span class="Normal">int</span> num<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L159" class="LineNr">159 </span> assert<span class="Delimiter">(</span>num <= <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L160" class="LineNr">160 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < num<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L161" class="LineNr">161 </span> out<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='024pack_operands.cc.html#L166'>hex_byte_text</a><span class="Delimiter">(</span>val & <span class="Constant">0xff</span><span class="Delimiter">));</span> +<span id="L162" class="LineNr">162 </span> val = val >> <span class="Constant">8</span><span class="Delimiter">;</span> +<span id="L163" class="LineNr">163 </span> <span class="Delimiter">}</span> +<span id="L164" class="LineNr">164 </span><span class="Delimiter">}</span> +<span id="L165" class="LineNr">165 </span> +<span id="L166" class="LineNr">166 </span><a href='011run.cc.html#L113'>word</a> <a href='024pack_operands.cc.html#L166'>hex_byte_text</a><span class="Delimiter">(</span><span class="Normal">uint8_t</span> val<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L167" class="LineNr">167 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L168" class="LineNr">168 </span> out << <a href='010vm.cc.html#L227'>HEXBYTE</a> << <a href='010vm.cc.html#L230'>NUM</a><span class="Delimiter">(</span>val<span class="Delimiter">);</span> +<span id="L169" class="LineNr">169 </span> <a href='011run.cc.html#L113'>word</a> result<span class="Delimiter">;</span> +<span id="L170" class="LineNr">170 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a> = out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L171" class="LineNr">171 </span> result<span class="Delimiter">.</span><a href='011run.cc.html#L114'>original</a> = out<span class="Delimiter">.</span>str<span class="Delimiter">()</span>+<span class="Constant">"/auto"</span><span class="Delimiter">;</span> +<span id="L172" class="LineNr">172 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span> +<span id="L173" class="LineNr">173 </span><span class="Delimiter">}</span> +<span id="L174" class="LineNr">174 </span> +<span id="L175" class="LineNr">175 </span>string to_string<span class="Delimiter">(</span><span class="Normal">const</span> vector<word>& in<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L176" class="LineNr">176 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L177" class="LineNr">177 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L178" class="LineNr">178 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> +<span id="L179" class="LineNr">179 </span> out << in<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">;</span> +<span id="L180" class="LineNr">180 </span> <span class="Delimiter">}</span> +<span id="L181" class="LineNr">181 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L182" class="LineNr">182 </span><span class="Delimiter">}</span> +<span id="L183" class="LineNr">183 </span> +<span id="L184" class="LineNr">184 </span><span class="Comment">// helper</span> +<span id="L185" class="LineNr">185 </span><span class="Normal">void</span> transform<span class="Delimiter">(</span><span class="Normal">const</span> string& text_bytes<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L186" class="LineNr">186 </span> <a href='011run.cc.html#L94'>program</a> p<span class="Delimiter">;</span> +<span id="L187" class="LineNr">187 </span> istringstream in<span class="Delimiter">(</span>text_bytes<span class="Delimiter">);</span> +<span id="L188" class="LineNr">188 </span> <a href='011run.cc.html#L122'>parse</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> p<span class="Delimiter">);</span> +<span id="L189" class="LineNr">189 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L190" class="LineNr">190 </span> transform<span class="Delimiter">(</span>p<span class="Delimiter">);</span> +<span id="L191" class="LineNr">191 </span><span class="Delimiter">}</span> +<span id="L192" class="LineNr">192 </span> +<span id="L193" class="LineNr">193 </span><span class="Delimiter">:(scenario pack_immediate_constants_hex)</span> +<span id="L194" class="LineNr">194 </span>== <span class="Constant">0x1</span> +<span id="L195" class="LineNr">195 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L196" class="LineNr">196 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L197" class="LineNr">197 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L198" class="LineNr">198 </span> bb <span class="Constant">0x2a</span>/imm32 <span class="Comment"># copy 42 to EBX</span> +<span id="L199" class="LineNr">199 </span><span class="traceContains">+transform: packing instruction 'bb 0x2a/imm32'</span> +<span id="L200" class="LineNr">200 </span><span class="traceContains">+transform: instruction after packing: 'bb 2a 00 00 00'</span> +<span id="L201" class="LineNr">201 </span><span class="traceContains">+run: copy <a href='011run.cc.html#L253'>imm32</a> 0x0000002a to <a href='010vm.cc.html#L16'>EBX</a></span> +<span id="L202" class="LineNr">202 </span> +<span id="L203" class="LineNr">203 </span><span class="Delimiter">:(scenarios transform)</span> +<span id="L204" class="LineNr">204 </span><span class="Delimiter">:(scenario pack_silently_ignores_non_hex)</span> +<span id="L205" class="LineNr">205 </span>== <span class="Constant">0x1</span> +<span id="L206" class="LineNr">206 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L207" class="LineNr">207 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L208" class="LineNr">208 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L209" class="LineNr">209 </span> bb foo/imm32 <span class="Comment"># copy foo to EBX</span> +<span id="L210" class="LineNr">210 </span><span class="traceContains">+transform: packing instruction 'bb foo/imm32'</span> +<span id="L211" class="LineNr">211 </span><span class="Comment"># no change (we're just not printing metadata to the trace)</span> +<span id="L212" class="LineNr">212 </span><span class="traceContains">+transform: instruction after packing: 'bb foo'</span> +<span id="L213" class="LineNr">213 </span>$error: <span class="Constant">0</span> +<span id="L214" class="LineNr">214 </span><span class="Delimiter">:(scenarios run)</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/025non_code_segment.cc.html b/html/subx/025non_code_segment.cc.html new file mode 100644 index 00000000..75e3d182 --- /dev/null +++ b/html/subx/025non_code_segment.cc.html @@ -0,0 +1,94 @@ +<!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 - subx/025non_code_segment.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.Constant { color: #00a0a0; } +.Special { color: #c00000; } +.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; } +.traceContains { color: #008000; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Raise an error when operand metadata is used in non-code segments.</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="Delimiter">:(scenario operand_metadata_outside_code_segment)</span> +<span id="L4" class="LineNr"> 4 </span><span class="Special">% Hide_errors = true;</span> +<span id="L5" class="LineNr"> 5 </span>== <span class="Constant">0x1</span> <span class="Comment"># code segment</span> +<span id="L6" class="LineNr"> 6 </span>cd <span class="Constant">0x80</span>/imm8 +<span id="L7" class="LineNr"> 7 </span>== <span class="Constant">0x1000</span> <span class="Comment"># data segment</span> +<span id="L8" class="LineNr"> 8 </span>cd <span class="Constant">12</span>/imm8 +<span id="L9" class="LineNr"> 9 </span><span class="traceContains">+error: 12/imm8: metadata imm8 is only allowed in the (first) code segment</span> +<span id="L10" class="LineNr">10 </span> +<span id="L11" class="LineNr">11 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L12" class="LineNr">12 </span><a href='011run.cc.html#L184'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='025non_code_segment.cc.html#L14'>ensure_operands_only_in_code_segments</a><span class="Delimiter">);</span> +<span id="L13" class="LineNr">13 </span><span class="Delimiter">:(code)</span> +<span id="L14" class="LineNr">14 </span><span class="Normal">void</span> <a href='025non_code_segment.cc.html#L14'>ensure_operands_only_in_code_segments</a><span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">const</span><span class="Comment">*/</span> program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L15" class="LineNr">15 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- ensure operands only in code segments"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L16" class="LineNr">16 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L17" class="LineNr">17 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">skip code segment</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L18" class="LineNr">18 </span> <span class="Normal">const</span> segment& seg = p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L19" class="LineNr">19 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>seg<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L20" class="LineNr">20 </span> <span class="Normal">const</span> line& l = seg<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L21" class="LineNr">21 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> k = <span class="Constant">0</span><span class="Delimiter">;</span> k < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>l<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++k<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L22" class="LineNr">22 </span> <span class="Normal">const</span> word& w = l<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>k<span class="Delimiter">);</span> +<span id="L23" class="LineNr">23 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">uint32_t</span>>::iterator p = <a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <a href='023check_operand_bounds.cc.html#L10'>Operand_bound</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> +<span id="L24" class="LineNr">24 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>w<span class="Delimiter">,</span> p<span class="Delimiter">-></span>first<span class="Delimiter">))</span> +<span id="L25" class="LineNr">25 </span> <a href='003trace.cc.html#L196'>raise</a> << w<span class="Delimiter">.</span><a href='011run.cc.html#L114'>original</a> << <span class="Constant">": metadata "</span> << p<span class="Delimiter">-></span>first << <span class="Constant">" is only allowed in the (first) code segment</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L26" class="LineNr">26 </span> <span class="Delimiter">}</span> +<span id="L27" class="LineNr">27 </span> <span class="Delimiter">}</span> +<span id="L28" class="LineNr">28 </span> <span class="Delimiter">}</span> +<span id="L29" class="LineNr">29 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> diff --git a/html/subx/026labels.cc.html b/html/subx/026labels.cc.html new file mode 100644 index 00000000..ffd2f1e5 --- /dev/null +++ b/html/subx/026labels.cc.html @@ -0,0 +1,226 @@ +<!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 - subx/026labels.cc</title> +<meta name="Generator" content="Vim/7.4"> +<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="> +<meta name="colorscheme" content="minimal"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; } +body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; } +a { color:#eeeeee; text-decoration: none; } +a:hover { text-decoration: underline; } +* { font-size: 12pt; font-size: 1em; } +.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; } +.traceContains { color: #008000; } +.cSpecial { color: #008000; } +--> +</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; + } + 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();'> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Labels are defined by ending names with a ':'. This layer will compute</span> +<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: addresses for labels, and compute the offset for instructions using them.</span> +<span id="L3" class="LineNr"> 3 </span> +<span id="L4" class="LineNr"> 4 </span><span class="Delimiter">:(scenarios transform)</span> +<span id="L5" class="LineNr"> 5 </span><span class="Delimiter">:(scenario map_label)</span> +<span id="L6" class="LineNr"> 6 </span>== <span class="Constant">0x1</span> +<span id="L7" class="LineNr"> 7 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L8" class="LineNr"> 8 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L9" class="LineNr"> 9 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L10" class="LineNr"> 10 </span><span class="Normal">loop</span>: +<span id="L11" class="LineNr"> 11 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> +<span id="L12" class="LineNr"> 12 </span><span class="traceContains">+transform: <a href='003trace.cc.html#L73'>label</a> 'loop' is at address 1</span> +<span id="L13" class="LineNr"> 13 </span> +<span id="L14" class="LineNr"> 14 </span><span class="Delimiter">:(before "End One-time Setup")</span> +<span id="L15" class="LineNr"> 15 </span><a href='011run.cc.html#L184'>Transform</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='026labels.cc.html#L18'>rewrite_labels</a><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> <a href='026labels.cc.html#L18'>rewrite_labels</a><span class="Delimiter">(</span>program& p<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L19" class="LineNr"> 19 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"-- rewrite labels"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L20" class="LineNr"> 20 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L21" class="LineNr"> 21 </span> segment& code = p<span class="Delimiter">.</span><a href='011run.cc.html#L95'>segments</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span> +<span id="L22" class="LineNr"> 22 </span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>> address<span class="Delimiter">;</span> <span class="Comment">// values are unsigned, but we're going to do subtractions on them so they need to fit in 31 bits</span> +<span id="L23" class="LineNr"> 23 </span> <a href='026labels.cc.html#L30'>compute_addresses_for_labels</a><span class="Delimiter">(</span>code<span class="Delimiter">,</span> address<span class="Delimiter">);</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L25" class="LineNr"> 25 </span> <a href='026labels.cc.html#L64'>drop_labels</a><span class="Delimiter">(</span>code<span class="Delimiter">);</span> +<span id="L26" class="LineNr"> 26 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='003trace.cc.html#L208'>trace_contains_errors</a><span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span> +<span id="L27" class="LineNr"> 27 </span> <a href='026labels.cc.html#L76'>replace_labels_with_addresses</a><span class="Delimiter">(</span>code<span class="Delimiter">,</span> address<span class="Delimiter">);</span> +<span id="L28" class="LineNr"> 28 </span><span class="Delimiter">}</span> +<span id="L29" class="LineNr"> 29 </span> +<span id="L30" class="LineNr"> 30 </span><span class="Normal">void</span> <a href='026labels.cc.html#L30'>compute_addresses_for_labels</a><span class="Delimiter">(</span><span class="Normal">const</span> segment& code<span class="Delimiter">,</span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L31" class="LineNr"> 31 </span> <span class="Normal">int</span> current_byte = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L33" class="LineNr"> 33 </span> <span class="Normal">const</span> line& inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L36" class="LineNr"> 36 </span> <span class="Comment">// hack: if we have any operand metadata left after previous transforms,</span> +<span id="L37" class="LineNr"> 37 </span> <span class="Comment">// deduce its size</span> +<span id="L38" class="LineNr"> 38 </span> <span class="Comment">// Maybe we should just move this transform to before instruction</span> +<span id="L39" class="LineNr"> 39 </span> <span class="Comment">// packing, and deduce the size of *all* operands. But then we'll also</span> +<span id="L40" class="LineNr"> 40 </span> <span class="Comment">// have to deal with bitfields.</span> +<span id="L41" class="LineNr"> 41 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">)</span> || has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L42" class="LineNr"> 42 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">':'</span><span class="Delimiter">)</span> +<span id="L43" class="LineNr"> 43 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': don't use ':' when jumping to labels</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span> +<span id="L44" class="LineNr"> 44 </span> current_byte += <span class="Constant">4</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="Comment">// automatically handle /disp8 and /imm8 here</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>*curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> != <span class="Constant">':'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L48" class="LineNr"> 48 </span> ++current_byte<span class="Delimiter">;</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Delimiter">}</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Normal">else</span> <span class="Delimiter">{</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022check_instruction.cc.html#L344'>contains_any_operand_metadata</a><span class="Delimiter">(</span>curr<span class="Delimiter">))</span> +<span id="L52" class="LineNr"> 52 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': <a href='003trace.cc.html#L73'>label</a> definition (':') not allowed in operand</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>j > <span class="Constant">0</span><span class="Delimiter">)</span> +<span id="L54" class="LineNr"> 54 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': labels can only be the first <a href='011run.cc.html#L113'>word</a> in a line.</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L55" class="LineNr"> 55 </span> string <a href='003trace.cc.html#L73'>label</a> = curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">.</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L56" class="LineNr"> 56 </span> <a href='001help.cc.html#L243'>put</a><span class="Delimiter">(</span>address<span class="Delimiter">,</span> <a href='003trace.cc.html#L73'>label</a><span class="Delimiter">,</span> current_byte<span class="Delimiter">);</span> +<span id="L57" class="LineNr"> 57 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"label '"</span> << label << <span class="Constant">"' is at address "</span> << <span class="Delimiter">(</span>current_byte+code<span class="Delimiter">.</span><a href='011run.cc.html#L103'>start</a><span class="Delimiter">)</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L58" class="LineNr"> 58 </span> <span class="Comment">// no modifying current_byte; label definitions won't be in the final binary</span> +<span id="L59" class="LineNr"> 59 </span> <span class="Delimiter">}</span> +<span id="L60" class="LineNr"> 60 </span> <span class="Delimiter">}</span> +<span id="L61" class="LineNr"> 61 </span> <span class="Delimiter">}</span> +<span id="L62" class="LineNr"> 62 </span><span class="Delimiter">}</span> +<span id="L63" class="LineNr"> 63 </span> +<span id="L64" class="LineNr"> 64 </span><span class="Normal">void</span> <a href='026labels.cc.html#L64'>drop_labels</a><span class="Delimiter">(</span>segment& code<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L65" class="LineNr"> 65 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L66" class="LineNr"> 66 </span> line& inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L67" class="LineNr"> 67 </span> vector<word>::iterator new_end = remove_if<span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">(),</span> <a href='026labels.cc.html#L72'>is_label</a><span class="Delimiter">);</span> +<span id="L68" class="LineNr"> 68 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>erase<span class="Delimiter">(</span>new_end<span class="Delimiter">,</span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span><a href='003trace.cc.html#L213'>end</a><span class="Delimiter">());</span> +<span id="L69" class="LineNr"> 69 </span> <span class="Delimiter">}</span> +<span id="L70" class="LineNr"> 70 </span><span class="Delimiter">}</span> +<span id="L71" class="LineNr"> 71 </span> +<span id="L72" class="LineNr"> 72 </span><span class="Normal">bool</span> <a href='026labels.cc.html#L72'>is_label</a><span class="Delimiter">(</span><span class="Normal">const</span> word& w<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L73" class="LineNr"> 73 </span> <span class="Identifier">return</span> *w<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">.</span>rbegin<span class="Delimiter">()</span> == <span class="Constant">':'</span><span class="Delimiter">;</span> +<span id="L74" class="LineNr"> 74 </span><span class="Delimiter">}</span> +<span id="L75" class="LineNr"> 75 </span> +<span id="L76" class="LineNr"> 76 </span><span class="Normal">void</span> <a href='026labels.cc.html#L76'>replace_labels_with_addresses</a><span class="Delimiter">(</span>segment& code<span class="Delimiter">,</span> <span class="Normal">const</span> map<string<span class="Delimiter">,</span> <span class="Normal">int32_t</span>>& address<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L77" class="LineNr"> 77 </span> <span class="Normal">int32_t</span> byte_next_instruction_starts_at = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L78" class="LineNr"> 78 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L79" class="LineNr"> 79 </span> line& inst = code<span class="Delimiter">.</span><a href='011run.cc.html#L104'>lines</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L80" class="LineNr"> 80 </span> byte_next_instruction_starts_at += <a href='026labels.cc.html#L112'>num_bytes</a><span class="Delimiter">(</span>inst<span class="Delimiter">);</span> +<span id="L81" class="LineNr"> 81 </span> <a href='011run.cc.html#L108'>line</a> new_inst<span class="Delimiter">;</span> +<span id="L82" class="LineNr"> 82 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> j = <span class="Constant">0</span><span class="Delimiter">;</span> j < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++j<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L83" class="LineNr"> 83 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>j<span class="Delimiter">);</span> +<span id="L84" class="LineNr"> 84 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L247'>contains_key</a><span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L85" class="LineNr"> 85 </span> <span class="Normal">int32_t</span> offset = <span class="Normal">static_cast</span><<span class="Normal">int32_t</span>><span class="Delimiter">(</span>get<span class="Delimiter">(</span>address<span class="Delimiter">,</span> curr<span class="Delimiter">.</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">))</span> - byte_next_instruction_starts_at<span class="Delimiter">;</span> +<span id="L86" class="LineNr"> 86 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp8"</span><span class="Delimiter">)</span> || has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm8"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L87" class="LineNr"> 87 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>offset > <span class="Constant">0xff</span> || offset < -<span class="Constant">0x7f</span><span class="Delimiter">)</span> +<span id="L88" class="LineNr"> 88 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': <a href='003trace.cc.html#L73'>label</a> too far away for distance "</span> << std::hex << offset << <span class="Constant">" to fit in 8 bits</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L89" class="LineNr"> 89 </span> <span class="Normal">else</span> +<span id="L90" class="LineNr"> 90 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> offset<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">);</span> +<span id="L91" class="LineNr"> 91 </span> <span class="Delimiter">}</span> +<span id="L92" class="LineNr"> 92 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp16"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L93" class="LineNr"> 93 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>offset > <span class="Constant">0xffff</span> || offset < -<span class="Constant">0x7fff</span><span class="Delimiter">)</span> +<span id="L94" class="LineNr"> 94 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"'"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"': <a href='003trace.cc.html#L73'>label</a> too far away for distance "</span> << std::hex << offset << <span class="Constant">" to fit in 16 bits</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L213'>end</a><span class="Delimiter">();</span> +<span id="L95" class="LineNr"> 95 </span> <span class="Normal">else</span> +<span id="L96" class="LineNr"> 96 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> offset<span class="Delimiter">,</span> <span class="Constant">2</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">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">)</span> || has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span> <span class="Delimiter">{</span> +<span id="L99" class="LineNr"> 99 </span> emit_hex_bytes<span class="Delimiter">(</span>new_inst<span class="Delimiter">,</span> offset<span class="Delimiter">,</span> <span class="Constant">4</span><span class="Delimiter">);</span> +<span id="L100" class="LineNr">100 </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="Normal">else</span> <span class="Delimiter">{</span> +<span id="L103" class="LineNr">103 </span> new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>curr<span class="Delimiter">);</span> +<span id="L104" class="LineNr">104 </span> <span class="Delimiter">}</span> +<span id="L105" class="LineNr">105 </span> <span class="Delimiter">}</span> +<span id="L106" class="LineNr">106 </span> inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>swap<span class="Delimiter">(</span>new_inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> +<span id="L107" class="LineNr">107 </span> <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">99</span><span class="Delimiter">,</span> <span class="Constant">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction after transform: '"</span> << data_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'"</span> << <a href='003trace.cc.html#L213'>end</a><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="Comment">// Assumes all bitfields are packed.</span> +<span id="L112" class="LineNr">112 </span><span class="Normal">uint32_t</span> <a href='026labels.cc.html#L112'>num_bytes</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L113" class="LineNr">113 </span> <span class="Normal">uint32_t</span> sum = <span class="Constant">0</span><span class="Delimiter">;</span> +<span id="L114" class="LineNr">114 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L115" class="LineNr">115 </span> <span class="Normal">const</span> word& curr = inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span> +<span id="L116" class="LineNr">116 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"disp32"</span><span class="Delimiter">)</span> || has_metadata<span class="Delimiter">(</span>curr<span class="Delimiter">,</span> <span class="Constant">"imm32"</span><span class="Delimiter">))</span> <span class="Comment">// only multi-byte operands</span> +<span id="L117" class="LineNr">117 </span> sum += <span class="Constant">4</span><span class="Delimiter">;</span> +<span id="L118" class="LineNr">118 </span> <span class="Normal">else</span> +<span id="L119" class="LineNr">119 </span> sum++<span class="Delimiter">;</span> +<span id="L120" class="LineNr">120 </span> <span class="Delimiter">}</span> +<span id="L121" class="LineNr">121 </span> <span class="Identifier">return</span> sum<span class="Delimiter">;</span> +<span id="L122" class="LineNr">122 </span><span class="Delimiter">}</span> +<span id="L123" class="LineNr">123 </span> +<span id="L124" class="LineNr">124 </span>string <a href='026labels.cc.html#L124'>data_to_string</a><span class="Delimiter">(</span><span class="Normal">const</span> line& inst<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L125" class="LineNr">125 </span> ostringstream out<span class="Delimiter">;</span> +<span id="L126" class="LineNr">126 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L157'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span> +<span id="L127" class="LineNr">127 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>i > <span class="Constant">0</span><span class="Delimiter">)</span> out << <span class="Constant">' '</span><span class="Delimiter">;</span> +<span id="L128" class="LineNr">128 </span> out << inst<span class="Delimiter">.</span><a href='011run.cc.html#L109'>words</a><span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span><a href='011run.cc.html#L115'>data</a><span class="Delimiter">;</span> +<span id="L129" class="LineNr">129 </span> <span class="Delimiter">}</span> +<span id="L130" class="LineNr">130 </span> <span class="Identifier">return</span> out<span class="Delimiter">.</span>str<span class="Delimiter">();</span> +<span id="L131" class="LineNr">131 </span><span class="Delimiter">}</span> +<span id="L132" class="LineNr">132 </span> +<span id="L133" class="LineNr">133 </span><span class="Comment">//: Label definitions must be the first word on a line. No jumping inside</span> +<span id="L134" class="LineNr">134 </span><span class="Comment">//: instructions.</span> +<span id="L135" class="LineNr">135 </span><span class="Comment">//: They should also be the only word on a line.</span> +<span id="L136" class="LineNr">136 </span><span class="Comment">//: However, you can absolutely have multiple labels map to the same address,</span> +<span id="L137" class="LineNr">137 </span><span class="Comment">//: as long as they're on separate lines.</span> +<span id="L138" class="LineNr">138 </span> +<span id="L139" class="LineNr">139 </span><span class="Delimiter">:(scenario multiple_labels_at)</span> +<span id="L140" class="LineNr">140 </span>== <span class="Constant">0x1</span> +<span id="L141" class="LineNr">141 </span> <span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L142" class="LineNr">142 </span> <span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L143" class="LineNr">143 </span> <span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span> +<span id="L144" class="LineNr">144 </span><span class="Comment"># address 1</span> +<span id="L145" class="LineNr">145 </span><span class="Normal">loop</span>: +<span id="L146" class="LineNr">146 </span><span class="Normal">loop2</span>: +<span id="L147" class="LineNr">147 </span><span class="Comment"># address 1 (labels take up no space)</span> +<span id="L148" class="LineNr">148 </span> <span class="PreProc">0</span><span class="Constant">5</span> <span class="Constant">0x0d0c0b0a</span>/imm32 <span class="Comment"># add to EAX</span> +<span id="L149" class="LineNr">149 </span><span class="Comment"># address 6</span> +<span id="L150" class="LineNr">150 </span> eb loop2/disp8 +<span id="L151" class="LineNr">151 </span><span class="Comment"># address 8</span> +<span id="L152" class="LineNr">152 </span> eb loop3/disp8 +<span id="L153" class="LineNr">153 </span><span class="Comment"># address 10</span> +<span id="L154" class="LineNr">154 </span><span class="Normal">loop3</span>: +<span id="L155" class="LineNr">155 </span><span class="traceContains">+transform: <a href='003trace.cc.html#L73'>label</a> 'loop' is at address 1</span> +<span id="L156" class="LineNr">156 </span><span class="traceContains">+transform: <a href='003trace.cc.html#L73'>label</a> 'loop2' is at address 1</span> +<span id="L157" class="LineNr">157 </span><span class="traceContains">+transform: <a href='003trace.cc.html#L73'>label</a> 'loop3' is at address 10</span> +<span id="L158" class="LineNr">158 </span><span class="Comment"># first jump is to -7</span> +<span id="L159" class="LineNr">159 </span><span class="traceContains">+transform: instruction after transform: 'eb f9'</span> +<span id="L160" class="LineNr">160 </span><span class="Comment"># second jump is to 0 (fall through)</span> +<span id="L161" class="LineNr">161 </span><span class="traceContains">+transform: instruction after transform: 'eb 00'</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |