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diff --git a/html/subx/022check_instruction.cc.html b/html/subx/022check_instruction.cc.html deleted file mode 100644 index 75d6945a..00000000 --- a/html/subx/022check_instruction.cc.html +++ /dev/null @@ -1,750 +0,0 @@ -<!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 : --> |