diff options
Diffstat (limited to 'html/subx/examples')
| -rw-r--r-- | html/subx/examples/ex1.subx.html | 13 | ||||
| -rw-r--r-- | html/subx/examples/ex11.subx.html | 650 | ||||
| -rw-r--r-- | html/subx/examples/ex12.subx.html | 36 | ||||
| -rw-r--r-- | html/subx/examples/ex2.subx.html | 15 | ||||
| -rw-r--r-- | html/subx/examples/ex3.subx.html | 45 | ||||
| -rw-r--r-- | html/subx/examples/ex4.subx.html | 65 | ||||
| -rw-r--r-- | html/subx/examples/ex6.subx.html | 24 | ||||
| -rw-r--r-- | html/subx/examples/ex7.subx.html | 64 | ||||
| -rw-r--r-- | html/subx/examples/ex8.subx.html | 75 | ||||
| -rw-r--r-- | html/subx/examples/ex9.subx.html | 57 |
10 files changed, 530 insertions, 514 deletions
diff --git a/html/subx/examples/ex1.subx.html b/html/subx/examples/ex1.subx.html index df3bcacb..3f11f2b5 100644 --- a/html/subx/examples/ex1.subx.html +++ b/html/subx/examples/ex1.subx.html @@ -64,12 +64,13 @@ if ('onhashchange' in window) { <span id="L9" class="LineNr"> 9 </span><span class="Comment"># 42</span> <span id="L10" class="LineNr">10 </span> <span id="L11" class="LineNr">11 </span>== code -<span id="L12" class="LineNr">12 </span>bb/copy-to-EBX 2a/imm32 -<span id="L13" class="LineNr">13 </span><span class="Comment"># exit(EBX)</span> -<span id="L14" class="LineNr">14 </span>b8/copy-to-EAX 1/imm32 -<span id="L15" class="LineNr">15 </span>cd/syscall 0x80/imm8 -<span id="L16" class="LineNr">16 </span> -<span id="L17" class="LineNr">17 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L12" class="LineNr">12 </span> +<span id="L13" class="LineNr">13 </span>bb/copy-to-EBX 2a/imm32 +<span id="L14" class="LineNr">14 </span><span class="Comment"># exit(EBX)</span> +<span id="L15" class="LineNr">15 </span>b8/copy-to-EAX 1/imm32 +<span id="L16" class="LineNr">16 </span>cd/syscall 0x80/imm8 +<span id="L17" class="LineNr">17 </span> +<span id="L18" class="LineNr">18 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex11.subx.html b/html/subx/examples/ex11.subx.html index 7ac67838..0c4da4c4 100644 --- a/html/subx/examples/ex11.subx.html +++ b/html/subx/examples/ex11.subx.html @@ -16,7 +16,9 @@ a { color:#eeeeee; text-decoration: none; } a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } +.Constant { color: #00a0a0; } .Delimiter { color: #800080; } +.Special { color: #c00000; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -71,337 +73,337 @@ if ('onhashchange' in window) { <span id="L15" class="LineNr"> 15 </span><span class="Comment"># would cause tests to not run, rather than to fail as we'd like.)</span> <span id="L16" class="LineNr"> 16 </span> <span id="L17" class="LineNr"> 17 </span>== code -<span id="L18" class="LineNr"> 18 </span> -<span id="L19" class="LineNr"> 19 </span><span class="Comment"># instruction effective address operand displacement immediate</span> -<span id="L20" class="LineNr"> 20 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> -<span id="L21" class="LineNr"> 21 </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="L22" class="LineNr"> 22 </span> -<span id="L23" class="LineNr"> 23 </span><span class="Comment"># main:</span> -<span id="L24" class="LineNr"> 24 </span> e8/call run-tests/disp32 <span class="Comment"># 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.</span> -<span id="L25" class="LineNr"> 25 </span> <span class="Comment"># syscall(exit, EAX)</span> -<span id="L26" class="LineNr"> 26 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> -<span id="L27" class="LineNr"> 27 </span> b8/copy-to-EAX 1/imm32 -<span id="L28" class="LineNr"> 28 </span> cd/syscall 0x80/imm8 -<span id="L29" class="LineNr"> 29 </span> -<span id="L30" class="LineNr"> 30 </span><span class="Comment"># compare a null-terminated ascii string with a more idiomatic length-prefixed byte array</span> -<span id="L31" class="LineNr"> 31 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> -<span id="L32" class="LineNr"> 32 </span>kernel-string-equal: <span class="Comment"># s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean</span> -<span id="L33" class="LineNr"> 33 </span> <span class="Comment"># prolog</span> -<span id="L34" class="LineNr"> 34 </span> 55/push-EBP -<span id="L35" class="LineNr"> 35 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> -<span id="L36" class="LineNr"> 36 </span> <span class="Comment"># save registers</span> -<span id="L37" class="LineNr"> 37 </span> 51/push-ECX -<span id="L38" class="LineNr"> 38 </span> 52/push-EDX -<span id="L39" class="LineNr"> 39 </span> 53/push-EBX -<span id="L40" class="LineNr"> 40 </span> 56/push-ESI -<span id="L41" class="LineNr"> 41 </span> 57/push-EDI -<span id="L42" class="LineNr"> 42 </span> -<span id="L43" class="LineNr"> 43 </span> <span class="Comment"># pseudocode:</span> -<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># initialize n = b.length</span> -<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># initialize s1 = s</span> -<span id="L46" class="LineNr"> 46 </span> <span class="Comment"># initialize s2 = b.data</span> -<span id="L47" class="LineNr"> 47 </span> <span class="Comment"># i = 0</span> -<span id="L48" class="LineNr"> 48 </span> <span class="Comment"># for (i = 0; i < n; ++n)</span> -<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># c1 = *s1</span> -<span id="L50" class="LineNr"> 50 </span> <span class="Comment"># c2 = *s2</span> -<span id="L51" class="LineNr"> 51 </span> <span class="Comment"># if c1 == 0</span> -<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># return false</span> -<span id="L53" class="LineNr"> 53 </span> <span class="Comment"># if c1 != c2</span> -<span id="L54" class="LineNr"> 54 </span> <span class="Comment"># return false</span> -<span id="L55" class="LineNr"> 55 </span> <span class="Comment"># return *s1 == 0</span> -<span id="L56" class="LineNr"> 56 </span> <span class="Comment"># initialize s into EDI</span> -<span id="L57" class="LineNr"> 57 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 7/r32/EDI 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDI</span> -<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># initialize benchmark length n into EDX</span> -<span id="L59" class="LineNr"> 59 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EDX</span> -<span id="L60" class="LineNr"> 60 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L61" class="LineNr"> 61 </span> <span class="Comment"># initialize benchmark data into ESI</span> -<span id="L62" class="LineNr"> 62 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 6/r32/ESI 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to ESI</span> -<span id="L63" class="LineNr"> 63 </span> 81 0/subop/add 3/mod/direct 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESI</span> -<span id="L64" class="LineNr"> 64 </span> <span class="Comment"># initialize loop counter i into ECX</span> -<span id="L65" class="LineNr"> 65 </span> b9/copy-to-ECX 0/imm32/exit -<span id="L66" class="LineNr"> 66 </span> <span class="Comment"># while (i/ECX < n/EDX)</span> -<span id="L67" class="LineNr"> 67 </span>$kernel-string-equal:loop: -<span id="L68" class="LineNr"> 68 </span> 39/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare ECX with EDX</span> -<span id="L69" class="LineNr"> 69 </span> 74/jump-if-equal $kernel-string-equal:break/disp8 -<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># c1/EAX, c2/EBX = *s, *benchmark</span> -<span id="L71" class="LineNr"> 71 </span> b8/copy-to-EAX 0/imm32 -<span id="L72" class="LineNr"> 72 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> -<span id="L73" class="LineNr"> 73 </span> bb/copy-to-EBX 0/imm32 -<span id="L74" class="LineNr"> 74 </span> 8a/copy 0/mod/indirect 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ESI to lower byte of EBX</span> -<span id="L75" class="LineNr"> 75 </span> <span class="Comment"># if (c1 == 0) return false</span> -<span id="L76" class="LineNr"> 76 </span> 3d/compare-EAX 0/imm32 -<span id="L77" class="LineNr"> 77 </span> 74/jump-if-equal $kernel-string-equal:false/disp8 -<span id="L78" class="LineNr"> 78 </span> <span class="Comment"># if (c1 != c2) return false</span> -<span id="L79" class="LineNr"> 79 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with EBX</span> -<span id="L80" class="LineNr"> 80 </span> 75/jump-if-not-equal $kernel-string-equal:false/disp8 -<span id="L81" class="LineNr"> 81 </span> <span class="Comment"># ++s1, ++s2, ++i</span> -<span id="L82" class="LineNr"> 82 </span> 41/inc-ECX -<span id="L83" class="LineNr"> 83 </span> 46/inc-ESI -<span id="L84" class="LineNr"> 84 </span> 47/inc-EDI -<span id="L85" class="LineNr"> 85 </span> <span class="Comment"># end while</span> -<span id="L86" class="LineNr"> 86 </span> eb/jump $kernel-string-equal:loop/disp8 -<span id="L87" class="LineNr"> 87 </span>$kernel-string-equal:break: -<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># if (*s/EDI == 0) return true</span> -<span id="L89" class="LineNr"> 89 </span> b8/copy-to-EAX 0/imm32 -<span id="L90" class="LineNr"> 90 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> -<span id="L91" class="LineNr"> 91 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EAX</span> -<span id="L92" class="LineNr"> 92 </span> 75/jump-if-not-equal $kernel-string-equal:false/disp8 -<span id="L93" class="LineNr"> 93 </span> b8/copy-to-EAX 1/imm32 -<span id="L94" class="LineNr"> 94 </span>$kernel-string-equal:true: -<span id="L95" class="LineNr"> 95 </span> eb/jump $kernel-string-equal:end/disp8 -<span id="L96" class="LineNr"> 96 </span> <span class="Comment"># return false</span> -<span id="L97" class="LineNr"> 97 </span>$kernel-string-equal:false: -<span id="L98" class="LineNr"> 98 </span> b8/copy-to-EAX 0/imm32 -<span id="L99" class="LineNr"> 99 </span> -<span id="L100" class="LineNr">100 </span>$kernel-string-equal:end: -<span id="L101" class="LineNr">101 </span> <span class="Comment"># restore registers</span> -<span id="L102" class="LineNr">102 </span> 5f/pop-to-EDI -<span id="L103" class="LineNr">103 </span> 5e/pop-to-ESI -<span id="L104" class="LineNr">104 </span> 5b/pop-to-EBX -<span id="L105" class="LineNr">105 </span> 5a/pop-to-EDX -<span id="L106" class="LineNr">106 </span> 59/pop-to-ECX -<span id="L107" class="LineNr">107 </span> <span class="Comment"># end</span> -<span id="L108" class="LineNr">108 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> -<span id="L109" class="LineNr">109 </span> 5d/pop-to-EBP -<span id="L110" class="LineNr">110 </span> c3/return -<span id="L111" class="LineNr">111 </span> -<span id="L112" class="LineNr">112 </span><span class="SalientComment">## tests</span> -<span id="L113" class="LineNr">113 </span> -<span id="L114" class="LineNr">114 </span>test-compare-null-kernel-string-with-empty-array: -<span id="L115" class="LineNr">115 </span> <span class="Comment"># EAX = kernel-string-equal(Null-kernel-string, "")</span> -<span id="L116" class="LineNr">116 </span> <span class="Comment"># push args</span> -<span id="L117" class="LineNr">117 </span> 68/push ""/imm32 -<span id="L118" class="LineNr">118 </span> 68/push Null-kernel-string/imm32 -<span id="L119" class="LineNr">119 </span> <span class="Comment"># call</span> -<span id="L120" class="LineNr">120 </span> e8/call kernel-string-equal/disp32 -<span id="L121" class="LineNr">121 </span> <span class="Comment"># discard args</span> -<span id="L122" class="LineNr">122 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L123" class="LineNr">123 </span> <span class="Comment"># call check-ints-equal(EAX, 1, msg)</span> -<span id="L124" class="LineNr">124 </span> <span class="Comment"># push args</span> -<span id="L125" class="LineNr">125 </span> 68/push "F - test-compare-null-kernel-string-with-empty-array"/imm32 -<span id="L126" class="LineNr">126 </span> 68/push 1/imm32/true -<span id="L127" class="LineNr">127 </span> 50/push-EAX -<span id="L128" class="LineNr">128 </span> <span class="Comment"># call</span> -<span id="L129" class="LineNr">129 </span> e8/call check-ints-equal/disp32 -<span id="L130" class="LineNr">130 </span> <span class="Comment"># discard args</span> -<span id="L131" class="LineNr">131 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> -<span id="L132" class="LineNr">132 </span> c3/return -<span id="L133" class="LineNr">133 </span> -<span id="L134" class="LineNr">134 </span>test-compare-null-kernel-string-with-non-empty-array: -<span id="L135" class="LineNr">135 </span> <span class="Comment"># EAX = kernel-string-equal(Null-kernel-string, "Abc")</span> -<span id="L136" class="LineNr">136 </span> <span class="Comment"># push args</span> -<span id="L137" class="LineNr">137 </span> 68/push "Abc"/imm32 -<span id="L138" class="LineNr">138 </span> 68/push Null-kernel-string/imm32 -<span id="L139" class="LineNr">139 </span> <span class="Comment"># call</span> -<span id="L140" class="LineNr">140 </span> e8/call kernel-string-equal/disp32 -<span id="L141" class="LineNr">141 </span> <span class="Comment"># discard args</span> -<span id="L142" class="LineNr">142 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L143" class="LineNr">143 </span> <span class="Comment"># call check-ints-equal(EAX, 0, msg)</span> -<span id="L144" class="LineNr">144 </span> <span class="Comment"># push args</span> -<span id="L145" class="LineNr">145 </span> 68/push "F - test-compare-null-kernel-string-with-non-empty-array"/imm32 -<span id="L146" class="LineNr">146 </span> 68/push 0/imm32/false -<span id="L147" class="LineNr">147 </span> 50/push-EAX -<span id="L148" class="LineNr">148 </span> <span class="Comment"># call</span> -<span id="L149" class="LineNr">149 </span> e8/call check-ints-equal/disp32 -<span id="L150" class="LineNr">150 </span> <span class="Comment"># discard args</span> -<span id="L151" class="LineNr">151 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> -<span id="L152" class="LineNr">152 </span> c3/return -<span id="L153" class="LineNr">153 </span> -<span id="L154" class="LineNr">154 </span>test-compare-kernel-string-with-equal-array: -<span id="L155" class="LineNr">155 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "Abc")</span> -<span id="L156" class="LineNr">156 </span> <span class="Comment"># push args</span> -<span id="L157" class="LineNr">157 </span> 68/push "Abc"/imm32 -<span id="L158" class="LineNr">158 </span> 68/push Abc-kernel-string/imm32 -<span id="L159" class="LineNr">159 </span> <span class="Comment"># call</span> -<span id="L160" class="LineNr">160 </span> e8/call kernel-string-equal/disp32 -<span id="L161" class="LineNr">161 </span> <span class="Comment"># discard args</span> -<span id="L162" class="LineNr">162 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L163" class="LineNr">163 </span> <span class="Comment"># call check-ints-equal(EAX, 1, msg)</span> -<span id="L164" class="LineNr">164 </span> <span class="Comment"># push args</span> -<span id="L165" class="LineNr">165 </span> 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 -<span id="L166" class="LineNr">166 </span> 68/push 1/imm32/true -<span id="L167" class="LineNr">167 </span> 50/push-EAX -<span id="L168" class="LineNr">168 </span> <span class="Comment"># call</span> -<span id="L169" class="LineNr">169 </span> e8/call check-ints-equal/disp32 -<span id="L170" class="LineNr">170 </span> <span class="Comment"># discard args</span> -<span id="L171" class="LineNr">171 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> -<span id="L172" class="LineNr">172 </span> c3/return -<span id="L173" class="LineNr">173 </span> -<span id="L174" class="LineNr">174 </span>test-compare-kernel-string-with-inequal-array: -<span id="L175" class="LineNr">175 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "Adc")</span> -<span id="L176" class="LineNr">176 </span> <span class="Comment"># push args</span> -<span id="L177" class="LineNr">177 </span> 68/push "Adc"/imm32 -<span id="L178" class="LineNr">178 </span> 68/push Abc-kernel-string/imm32 -<span id="L179" class="LineNr">179 </span> <span class="Comment"># call</span> -<span id="L180" class="LineNr">180 </span> e8/call kernel-string-equal/disp32 -<span id="L181" class="LineNr">181 </span> <span class="Comment"># discard args</span> -<span id="L182" class="LineNr">182 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L183" class="LineNr">183 </span> <span class="Comment"># call check-ints-equal(EAX, 0, msg)</span> -<span id="L184" class="LineNr">184 </span> <span class="Comment"># push args</span> -<span id="L185" class="LineNr">185 </span> 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 -<span id="L186" class="LineNr">186 </span> 68/push 0/imm32/false -<span id="L187" class="LineNr">187 </span> 50/push-EAX -<span id="L188" class="LineNr">188 </span> <span class="Comment"># call</span> -<span id="L189" class="LineNr">189 </span> e8/call check-ints-equal/disp32 -<span id="L190" class="LineNr">190 </span> <span class="Comment"># discard args</span> -<span id="L191" class="LineNr">191 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> -<span id="L192" class="LineNr">192 </span> c3/return -<span id="L193" class="LineNr">193 </span> -<span id="L194" class="LineNr">194 </span>test-compare-kernel-string-with-empty-array: -<span id="L195" class="LineNr">195 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "")</span> -<span id="L196" class="LineNr">196 </span> <span class="Comment"># push args</span> -<span id="L197" class="LineNr">197 </span> 68/push ""/imm32 -<span id="L198" class="LineNr">198 </span> 68/push Abc-kernel-string/imm32 -<span id="L199" class="LineNr">199 </span> <span class="Comment"># call</span> -<span id="L200" class="LineNr">200 </span> e8/call kernel-string-equal/disp32 -<span id="L201" class="LineNr">201 </span> <span class="Comment"># discard args</span> -<span id="L202" class="LineNr">202 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L203" class="LineNr">203 </span> <span class="Comment"># call check-ints-equal(EAX, 0)</span> -<span id="L204" class="LineNr">204 </span> <span class="Comment"># push args</span> -<span id="L205" class="LineNr">205 </span> 68/push "F - test-compare-kernel-string-with-equal-array"/imm32 -<span id="L206" class="LineNr">206 </span> 68/push 0/imm32/false -<span id="L207" class="LineNr">207 </span> 50/push-EAX -<span id="L208" class="LineNr">208 </span> <span class="Comment"># call</span> -<span id="L209" class="LineNr">209 </span> e8/call check-ints-equal/disp32 -<span id="L210" class="LineNr">210 </span> <span class="Comment"># discard args</span> -<span id="L211" class="LineNr">211 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> -<span id="L212" class="LineNr">212 </span> c3/return -<span id="L213" class="LineNr">213 </span> -<span id="L214" class="LineNr">214 </span>test-compare-kernel-string-with-shorter-array: -<span id="L215" class="LineNr">215 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "Ab")</span> -<span id="L216" class="LineNr">216 </span> <span class="Comment"># push args</span> -<span id="L217" class="LineNr">217 </span> 68/push "Ab"/imm32 -<span id="L218" class="LineNr">218 </span> 68/push Abc-kernel-string/imm32 -<span id="L219" class="LineNr">219 </span> <span class="Comment"># call</span> -<span id="L220" class="LineNr">220 </span> e8/call kernel-string-equal/disp32 -<span id="L221" class="LineNr">221 </span> <span class="Comment"># discard args</span> -<span id="L222" class="LineNr">222 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L223" class="LineNr">223 </span> <span class="Comment"># call check-ints-equal(EAX, 0)</span> -<span id="L224" class="LineNr">224 </span> <span class="Comment"># push args</span> -<span id="L225" class="LineNr">225 </span> 68/push "F - test-compare-kernel-string-with-shorter-array"/imm32 -<span id="L226" class="LineNr">226 </span> 68/push 0/imm32/false -<span id="L227" class="LineNr">227 </span> 50/push-EAX -<span id="L228" class="LineNr">228 </span> <span class="Comment"># call</span> -<span id="L229" class="LineNr">229 </span> e8/call check-ints-equal/disp32 -<span id="L230" class="LineNr">230 </span> <span class="Comment"># discard args</span> -<span id="L231" class="LineNr">231 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> -<span id="L232" class="LineNr">232 </span> c3/return -<span id="L233" class="LineNr">233 </span> -<span id="L234" class="LineNr">234 </span>test-compare-kernel-string-with-longer-array: -<span id="L235" class="LineNr">235 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "Abcd")</span> -<span id="L236" class="LineNr">236 </span> <span class="Comment"># push args</span> -<span id="L237" class="LineNr">237 </span> 68/push "Abcd"/imm32 -<span id="L238" class="LineNr">238 </span> 68/push Abc-kernel-string/imm32 -<span id="L239" class="LineNr">239 </span> <span class="Comment"># call</span> -<span id="L240" class="LineNr">240 </span> e8/call kernel-string-equal/disp32 -<span id="L241" class="LineNr">241 </span> <span class="Comment"># discard args</span> -<span id="L242" class="LineNr">242 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L243" class="LineNr">243 </span> <span class="Comment"># call check-ints-equal(EAX, 0)</span> -<span id="L244" class="LineNr">244 </span> <span class="Comment"># push args</span> -<span id="L245" class="LineNr">245 </span> 68/push "F - test-compare-kernel-string-with-longer-array"/imm32 -<span id="L246" class="LineNr">246 </span> 68/push 0/imm32/false -<span id="L247" class="LineNr">247 </span> 50/push-EAX -<span id="L248" class="LineNr">248 </span> <span class="Comment"># call</span> -<span id="L249" class="LineNr">249 </span> e8/call check-ints-equal/disp32 -<span id="L250" class="LineNr">250 </span> <span class="Comment"># discard args</span> -<span id="L251" class="LineNr">251 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> -<span id="L252" class="LineNr">252 </span> c3/return -<span id="L253" class="LineNr">253 </span> -<span id="L254" class="LineNr">254 </span><span class="SalientComment">## helpers</span> -<span id="L255" class="LineNr">255 </span> -<span id="L256" class="LineNr">256 </span><span class="Comment"># print msg to stderr if a != b, otherwise print "."</span> -<span id="L257" class="LineNr">257 </span>check-ints-equal: <span class="Comment"># (a : int, b : int, msg : (address array byte)) -> boolean</span> -<span id="L258" class="LineNr">258 </span> <span class="Comment"># prolog</span> -<span id="L259" class="LineNr">259 </span> 55/push-EBP -<span id="L260" class="LineNr">260 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> -<span id="L261" class="LineNr">261 </span> <span class="Comment"># save registers</span> -<span id="L262" class="LineNr">262 </span> 51/push-ECX -<span id="L263" class="LineNr">263 </span> 53/push-EBX -<span id="L264" class="LineNr">264 </span> <span class="Comment"># load args into EAX, EBX and ECX</span> -<span id="L265" class="LineNr">265 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span> -<span id="L266" class="LineNr">266 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EBX</span> -<span id="L267" class="LineNr">267 </span> <span class="Comment"># if EAX == b/EBX</span> -<span id="L268" class="LineNr">268 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX and EBX</span> -<span id="L269" class="LineNr">269 </span> 75/jump-if-unequal $check-ints-equal:else/disp8 -<span id="L270" class="LineNr">270 </span> <span class="Comment"># print('.')</span> -<span id="L271" class="LineNr">271 </span> <span class="Comment"># push args</span> -<span id="L272" class="LineNr">272 </span> 68/push "."/imm32 -<span id="L273" class="LineNr">273 </span> <span class="Comment"># call</span> -<span id="L274" class="LineNr">274 </span> e8/call write-stderr/disp32 -<span id="L275" class="LineNr">275 </span> <span class="Comment"># discard args</span> -<span id="L276" class="LineNr">276 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> -<span id="L277" class="LineNr">277 </span> <span class="Comment"># return</span> -<span id="L278" class="LineNr">278 </span> eb/jump $check-ints-equal:end/disp8 -<span id="L279" class="LineNr">279 </span> <span class="Comment"># else:</span> -<span id="L280" class="LineNr">280 </span>$check-ints-equal:else: -<span id="L281" class="LineNr">281 </span> <span class="Comment"># copy msg into ECX</span> -<span id="L282" class="LineNr">282 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x10/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+16) to ECX</span> -<span id="L283" class="LineNr">283 </span> <span class="Comment"># print(ECX)</span> -<span id="L284" class="LineNr">284 </span> <span class="Comment"># push args</span> -<span id="L285" class="LineNr">285 </span> 51/push-ECX -<span id="L286" class="LineNr">286 </span> <span class="Comment"># call</span> -<span id="L287" class="LineNr">287 </span> e8/call write-stderr/disp32 -<span id="L288" class="LineNr">288 </span> <span class="Comment"># discard args</span> -<span id="L289" class="LineNr">289 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> -<span id="L290" class="LineNr">290 </span> <span class="Comment"># print newline</span> -<span id="L291" class="LineNr">291 </span> <span class="Comment"># push args</span> -<span id="L292" class="LineNr">292 </span> 68/push Newline/imm32 -<span id="L293" class="LineNr">293 </span> <span class="Comment"># call</span> -<span id="L294" class="LineNr">294 </span> e8/call write-stderr/disp32 -<span id="L295" class="LineNr">295 </span> <span class="Comment"># discard args</span> -<span id="L296" class="LineNr">296 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> -<span id="L297" class="LineNr">297 </span>$check-ints-equal:end: -<span id="L298" class="LineNr">298 </span> <span class="Comment"># restore registers</span> -<span id="L299" class="LineNr">299 </span> 5b/pop-to-EBX -<span id="L300" class="LineNr">300 </span> 59/pop-to-ECX -<span id="L301" class="LineNr">301 </span> <span class="Comment"># end</span> -<span id="L302" class="LineNr">302 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> -<span id="L303" class="LineNr">303 </span> 5d/pop-to-EBP -<span id="L304" class="LineNr">304 </span> c3/return -<span id="L305" class="LineNr">305 </span> -<span id="L306" class="LineNr">306 </span>write-stderr: <span class="Comment"># s : (address array byte) -> <void></span> -<span id="L307" class="LineNr">307 </span> <span class="Comment"># prolog</span> -<span id="L308" class="LineNr">308 </span> 55/push-EBP -<span id="L309" class="LineNr">309 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> -<span id="L310" class="LineNr">310 </span> <span class="Comment"># save registers</span> -<span id="L311" class="LineNr">311 </span> 50/push-EAX -<span id="L312" class="LineNr">312 </span> 51/push-ECX -<span id="L313" class="LineNr">313 </span> 52/push-EDX -<span id="L314" class="LineNr">314 </span> 53/push-EBX -<span id="L315" class="LineNr">315 </span> <span class="Comment"># syscall(write, 2/stderr, (data) s+4, (size) *s)</span> -<span id="L316" class="LineNr">316 </span> <span class="Comment"># fd = 2 (stderr)</span> -<span id="L317" class="LineNr">317 </span> bb/copy-to-EBX 2/imm32 -<span id="L318" class="LineNr">318 </span> <span class="Comment"># x = s+4</span> -<span id="L319" class="LineNr">319 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to ECX</span> -<span id="L320" class="LineNr">320 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ECX</span> -<span id="L321" class="LineNr">321 </span> <span class="Comment"># size = *s</span> -<span id="L322" class="LineNr">322 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDX</span> -<span id="L323" class="LineNr">323 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> -<span id="L324" class="LineNr">324 </span> <span class="Comment"># syscall</span> -<span id="L325" class="LineNr">325 </span> b8/copy-to-EAX 4/imm32/write -<span id="L326" class="LineNr">326 </span> cd/syscall 0x80/imm8 -<span id="L327" class="LineNr">327 </span> <span class="Comment"># restore registers</span> -<span id="L328" class="LineNr">328 </span> 5b/pop-to-EBX -<span id="L329" class="LineNr">329 </span> 5a/pop-to-EDX -<span id="L330" class="LineNr">330 </span> 59/pop-to-ECX -<span id="L331" class="LineNr">331 </span> 58/pop-to-EAX -<span id="L332" class="LineNr">332 </span> <span class="Comment"># end</span> -<span id="L333" class="LineNr">333 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> -<span id="L334" class="LineNr">334 </span> 5d/pop-to-EBP -<span id="L335" class="LineNr">335 </span> c3/return -<span id="L336" class="LineNr">336 </span> -<span id="L337" class="LineNr">337 </span>== data -<span id="L338" class="LineNr">338 </span>Newline: +<span id="L18" class="LineNr"> 18 </span><span class="Comment"># instruction effective address operand displacement immediate</span> +<span id="L19" class="LineNr"> 19 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> +<span id="L20" class="LineNr"> 20 </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="L21" class="LineNr"> 21 </span> +<span id="L22" class="LineNr"> 22 </span><span class="Comment"># main:</span> +<span id="L23" class="LineNr"> 23 </span> e8/call run-tests/disp32 <span class="Comment"># 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.</span> +<span id="L24" class="LineNr"> 24 </span> <span class="Comment"># syscall(exit, EAX)</span> +<span id="L25" class="LineNr"> 25 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L26" class="LineNr"> 26 </span> b8/copy-to-EAX 1/imm32 +<span id="L27" class="LineNr"> 27 </span> cd/syscall 0x80/imm8 +<span id="L28" class="LineNr"> 28 </span> +<span id="L29" class="LineNr"> 29 </span><span class="Comment"># compare a null-terminated ascii string with a more idiomatic length-prefixed byte array</span> +<span id="L30" class="LineNr"> 30 </span><span class="Comment"># reason for the name: the only place we should have null-terminated ascii strings is from commandline args</span> +<span id="L31" class="LineNr"> 31 </span>kernel-string-equal: <span class="Comment"># s : null-terminated ascii string, benchmark : length-prefixed ascii string -> EAX : boolean</span> +<span id="L32" class="LineNr"> 32 </span> <span class="Comment"># prolog</span> +<span id="L33" class="LineNr"> 33 </span> 55/push-EBP +<span id="L34" class="LineNr"> 34 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L35" class="LineNr"> 35 </span> <span class="Comment"># save registers</span> +<span id="L36" class="LineNr"> 36 </span> 51/push-ECX +<span id="L37" class="LineNr"> 37 </span> 52/push-EDX +<span id="L38" class="LineNr"> 38 </span> 53/push-EBX +<span id="L39" class="LineNr"> 39 </span> 56/push-ESI +<span id="L40" class="LineNr"> 40 </span> 57/push-EDI +<span id="L41" class="LineNr"> 41 </span> +<span id="L42" class="LineNr"> 42 </span> <span class="Comment"># pseudocode:</span> +<span id="L43" class="LineNr"> 43 </span> <span class="Comment"># initialize n = b.length</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># initialize s1 = s</span> +<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># initialize s2 = b.data</span> +<span id="L46" class="LineNr"> 46 </span> <span class="Comment"># i = 0</span> +<span id="L47" class="LineNr"> 47 </span> <span class="Comment"># for (i = 0; i < n; ++n)</span> +<span id="L48" class="LineNr"> 48 </span> <span class="Comment"># c1 = *s1</span> +<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># c2 = *s2</span> +<span id="L50" class="LineNr"> 50 </span> <span class="Comment"># if c1 == 0</span> +<span id="L51" class="LineNr"> 51 </span> <span class="Comment"># return false</span> +<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># if c1 != c2</span> +<span id="L53" class="LineNr"> 53 </span> <span class="Comment"># return false</span> +<span id="L54" class="LineNr"> 54 </span> <span class="Comment"># return *s1 == 0</span> +<span id="L55" class="LineNr"> 55 </span> <span class="Comment"># initialize s into EDI</span> +<span id="L56" class="LineNr"> 56 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 7/r32/EDI 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDI</span> +<span id="L57" class="LineNr"> 57 </span> <span class="Comment"># initialize benchmark length n into EDX</span> +<span id="L58" class="LineNr"> 58 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EDX</span> +<span id="L59" class="LineNr"> 59 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L60" class="LineNr"> 60 </span> <span class="Comment"># initialize benchmark data into ESI</span> +<span id="L61" class="LineNr"> 61 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 6/r32/ESI 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to ESI</span> +<span id="L62" class="LineNr"> 62 </span> 81 0/subop/add 3/mod/direct 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESI</span> +<span id="L63" class="LineNr"> 63 </span> <span class="Comment"># initialize loop counter i into ECX</span> +<span id="L64" class="LineNr"> 64 </span> b9/copy-to-ECX 0/imm32/exit +<span id="L65" class="LineNr"> 65 </span> <span class="Comment"># while (i/ECX < n/EDX)</span> +<span id="L66" class="LineNr"> 66 </span>$kernel-string-equal:loop: +<span id="L67" class="LineNr"> 67 </span> 39/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare ECX with EDX</span> +<span id="L68" class="LineNr"> 68 </span> 74/jump-if-equal $kernel-string-equal:break/disp8 +<span id="L69" class="LineNr"> 69 </span> <span class="Comment"># c1/EAX, c2/EBX = *s, *benchmark</span> +<span id="L70" class="LineNr"> 70 </span> b8/copy-to-EAX 0/imm32 +<span id="L71" class="LineNr"> 71 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> +<span id="L72" class="LineNr"> 72 </span> bb/copy-to-EBX 0/imm32 +<span id="L73" class="LineNr"> 73 </span> 8a/copy 0/mod/indirect 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ESI to lower byte of EBX</span> +<span id="L74" class="LineNr"> 74 </span> <span class="Comment"># if (c1 == 0) return false</span> +<span id="L75" class="LineNr"> 75 </span> 3d/compare-EAX 0/imm32 +<span id="L76" class="LineNr"> 76 </span> 74/jump-if-equal $kernel-string-equal:false/disp8 +<span id="L77" class="LineNr"> 77 </span> <span class="Comment"># if (c1 != c2) return false</span> +<span id="L78" class="LineNr"> 78 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with EBX</span> +<span id="L79" class="LineNr"> 79 </span> 75/jump-if-not-equal $kernel-string-equal:false/disp8 +<span id="L80" class="LineNr"> 80 </span> <span class="Comment"># ++s1, ++s2, ++i</span> +<span id="L81" class="LineNr"> 81 </span> 41/inc-ECX +<span id="L82" class="LineNr"> 82 </span> 46/inc-ESI +<span id="L83" class="LineNr"> 83 </span> 47/inc-EDI +<span id="L84" class="LineNr"> 84 </span> <span class="Comment"># end while</span> +<span id="L85" class="LineNr"> 85 </span> eb/jump $kernel-string-equal:loop/disp8 +<span id="L86" class="LineNr"> 86 </span>$kernel-string-equal:break: +<span id="L87" class="LineNr"> 87 </span> <span class="Comment"># if (*s/EDI == 0) return true</span> +<span id="L88" class="LineNr"> 88 </span> b8/copy-to-EAX 0/imm32 +<span id="L89" class="LineNr"> 89 </span> 8a/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDI to lower byte of EAX</span> +<span id="L90" class="LineNr"> 90 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EAX</span> +<span id="L91" class="LineNr"> 91 </span> 75/jump-if-not-equal $kernel-string-equal:false/disp8 +<span id="L92" class="LineNr"> 92 </span> b8/copy-to-EAX 1/imm32 +<span id="L93" class="LineNr"> 93 </span>$kernel-string-equal:true: +<span id="L94" class="LineNr"> 94 </span> eb/jump $kernel-string-equal:end/disp8 +<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># return false</span> +<span id="L96" class="LineNr"> 96 </span>$kernel-string-equal:false: +<span id="L97" class="LineNr"> 97 </span> b8/copy-to-EAX 0/imm32 +<span id="L98" class="LineNr"> 98 </span> +<span id="L99" class="LineNr"> 99 </span>$kernel-string-equal:end: +<span id="L100" class="LineNr">100 </span> <span class="Comment"># restore registers</span> +<span id="L101" class="LineNr">101 </span> 5f/pop-to-EDI +<span id="L102" class="LineNr">102 </span> 5e/pop-to-ESI +<span id="L103" class="LineNr">103 </span> 5b/pop-to-EBX +<span id="L104" class="LineNr">104 </span> 5a/pop-to-EDX +<span id="L105" class="LineNr">105 </span> 59/pop-to-ECX +<span id="L106" class="LineNr">106 </span> <span class="Comment"># end</span> +<span id="L107" class="LineNr">107 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L108" class="LineNr">108 </span> 5d/pop-to-EBP +<span id="L109" class="LineNr">109 </span> c3/return +<span id="L110" class="LineNr">110 </span> +<span id="L111" class="LineNr">111 </span><span class="SalientComment">## tests</span> +<span id="L112" class="LineNr">112 </span> +<span id="L113" class="LineNr">113 </span>test-compare-null-kernel-string-with-empty-array: +<span id="L114" class="LineNr">114 </span> <span class="Comment"># EAX = kernel-string-equal(Null-kernel-string, "")</span> +<span id="L115" class="LineNr">115 </span> <span class="Comment"># push args</span> +<span id="L116" class="LineNr">116 </span> 68/push <span class="Constant">""</span>/imm32 +<span id="L117" class="LineNr">117 </span> 68/push <span class="Special">Null-kernel-string</span>/imm32 +<span id="L118" class="LineNr">118 </span> <span class="Comment"># call</span> +<span id="L119" class="LineNr">119 </span> e8/call kernel-string-equal/disp32 +<span id="L120" class="LineNr">120 </span> <span class="Comment"># discard args</span> +<span id="L121" class="LineNr">121 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L122" class="LineNr">122 </span> <span class="Comment"># call check-ints-equal(EAX, 1, msg)</span> +<span id="L123" class="LineNr">123 </span> <span class="Comment"># push args</span> +<span id="L124" class="LineNr">124 </span> 68/push <span class="Constant">"F - test-compare-null-kernel-string-with-empty-array"</span>/imm32 +<span id="L125" class="LineNr">125 </span> 68/push 1/imm32/true +<span id="L126" class="LineNr">126 </span> 50/push-EAX +<span id="L127" class="LineNr">127 </span> <span class="Comment"># call</span> +<span id="L128" class="LineNr">128 </span> e8/call check-ints-equal/disp32 +<span id="L129" class="LineNr">129 </span> <span class="Comment"># discard args</span> +<span id="L130" class="LineNr">130 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L131" class="LineNr">131 </span> c3/return +<span id="L132" class="LineNr">132 </span> +<span id="L133" class="LineNr">133 </span>test-compare-null-kernel-string-with-non-empty-array: +<span id="L134" class="LineNr">134 </span> <span class="Comment"># EAX = kernel-string-equal(Null-kernel-string, "Abc")</span> +<span id="L135" class="LineNr">135 </span> <span class="Comment"># push args</span> +<span id="L136" class="LineNr">136 </span> 68/push <span class="Constant">"Abc"</span>/imm32 +<span id="L137" class="LineNr">137 </span> 68/push <span class="Special">Null-kernel-string</span>/imm32 +<span id="L138" class="LineNr">138 </span> <span class="Comment"># call</span> +<span id="L139" class="LineNr">139 </span> e8/call kernel-string-equal/disp32 +<span id="L140" class="LineNr">140 </span> <span class="Comment"># discard args</span> +<span id="L141" class="LineNr">141 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L142" class="LineNr">142 </span> <span class="Comment"># call check-ints-equal(EAX, 0, msg)</span> +<span id="L143" class="LineNr">143 </span> <span class="Comment"># push args</span> +<span id="L144" class="LineNr">144 </span> 68/push <span class="Constant">"F - test-compare-null-kernel-string-with-non-empty-array"</span>/imm32 +<span id="L145" class="LineNr">145 </span> 68/push 0/imm32/false +<span id="L146" class="LineNr">146 </span> 50/push-EAX +<span id="L147" class="LineNr">147 </span> <span class="Comment"># call</span> +<span id="L148" class="LineNr">148 </span> e8/call check-ints-equal/disp32 +<span id="L149" class="LineNr">149 </span> <span class="Comment"># discard args</span> +<span id="L150" class="LineNr">150 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L151" class="LineNr">151 </span> c3/return +<span id="L152" class="LineNr">152 </span> +<span id="L153" class="LineNr">153 </span>test-compare-kernel-string-with-equal-array: +<span id="L154" class="LineNr">154 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "Abc")</span> +<span id="L155" class="LineNr">155 </span> <span class="Comment"># push args</span> +<span id="L156" class="LineNr">156 </span> 68/push <span class="Constant">"Abc"</span>/imm32 +<span id="L157" class="LineNr">157 </span> 68/push <span class="Special">Abc-kernel-string</span>/imm32 +<span id="L158" class="LineNr">158 </span> <span class="Comment"># call</span> +<span id="L159" class="LineNr">159 </span> e8/call kernel-string-equal/disp32 +<span id="L160" class="LineNr">160 </span> <span class="Comment"># discard args</span> +<span id="L161" class="LineNr">161 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L162" class="LineNr">162 </span> <span class="Comment"># call check-ints-equal(EAX, 1, msg)</span> +<span id="L163" class="LineNr">163 </span> <span class="Comment"># push args</span> +<span id="L164" class="LineNr">164 </span> 68/push <span class="Constant">"F - test-compare-kernel-string-with-equal-array"</span>/imm32 +<span id="L165" class="LineNr">165 </span> 68/push 1/imm32/true +<span id="L166" class="LineNr">166 </span> 50/push-EAX +<span id="L167" class="LineNr">167 </span> <span class="Comment"># call</span> +<span id="L168" class="LineNr">168 </span> e8/call check-ints-equal/disp32 +<span id="L169" class="LineNr">169 </span> <span class="Comment"># discard args</span> +<span id="L170" class="LineNr">170 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L171" class="LineNr">171 </span> c3/return +<span id="L172" class="LineNr">172 </span> +<span id="L173" class="LineNr">173 </span>test-compare-kernel-string-with-inequal-array: +<span id="L174" class="LineNr">174 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "Adc")</span> +<span id="L175" class="LineNr">175 </span> <span class="Comment"># push args</span> +<span id="L176" class="LineNr">176 </span> 68/push <span class="Constant">"Adc"</span>/imm32 +<span id="L177" class="LineNr">177 </span> 68/push <span class="Special">Abc-kernel-string</span>/imm32 +<span id="L178" class="LineNr">178 </span> <span class="Comment"># call</span> +<span id="L179" class="LineNr">179 </span> e8/call kernel-string-equal/disp32 +<span id="L180" class="LineNr">180 </span> <span class="Comment"># discard args</span> +<span id="L181" class="LineNr">181 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L182" class="LineNr">182 </span> <span class="Comment"># call check-ints-equal(EAX, 0, msg)</span> +<span id="L183" class="LineNr">183 </span> <span class="Comment"># push args</span> +<span id="L184" class="LineNr">184 </span> 68/push <span class="Constant">"F - test-compare-kernel-string-with-equal-array"</span>/imm32 +<span id="L185" class="LineNr">185 </span> 68/push 0/imm32/false +<span id="L186" class="LineNr">186 </span> 50/push-EAX +<span id="L187" class="LineNr">187 </span> <span class="Comment"># call</span> +<span id="L188" class="LineNr">188 </span> e8/call check-ints-equal/disp32 +<span id="L189" class="LineNr">189 </span> <span class="Comment"># discard args</span> +<span id="L190" class="LineNr">190 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L191" class="LineNr">191 </span> c3/return +<span id="L192" class="LineNr">192 </span> +<span id="L193" class="LineNr">193 </span>test-compare-kernel-string-with-empty-array: +<span id="L194" class="LineNr">194 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "")</span> +<span id="L195" class="LineNr">195 </span> <span class="Comment"># push args</span> +<span id="L196" class="LineNr">196 </span> 68/push <span class="Constant">""</span>/imm32 +<span id="L197" class="LineNr">197 </span> 68/push <span class="Special">Abc-kernel-string</span>/imm32 +<span id="L198" class="LineNr">198 </span> <span class="Comment"># call</span> +<span id="L199" class="LineNr">199 </span> e8/call kernel-string-equal/disp32 +<span id="L200" class="LineNr">200 </span> <span class="Comment"># discard args</span> +<span id="L201" class="LineNr">201 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L202" class="LineNr">202 </span> <span class="Comment"># call check-ints-equal(EAX, 0)</span> +<span id="L203" class="LineNr">203 </span> <span class="Comment"># push args</span> +<span id="L204" class="LineNr">204 </span> 68/push <span class="Constant">"F - test-compare-kernel-string-with-equal-array"</span>/imm32 +<span id="L205" class="LineNr">205 </span> 68/push 0/imm32/false +<span id="L206" class="LineNr">206 </span> 50/push-EAX +<span id="L207" class="LineNr">207 </span> <span class="Comment"># call</span> +<span id="L208" class="LineNr">208 </span> e8/call check-ints-equal/disp32 +<span id="L209" class="LineNr">209 </span> <span class="Comment"># discard args</span> +<span id="L210" class="LineNr">210 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L211" class="LineNr">211 </span> c3/return +<span id="L212" class="LineNr">212 </span> +<span id="L213" class="LineNr">213 </span>test-compare-kernel-string-with-shorter-array: +<span id="L214" class="LineNr">214 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "Ab")</span> +<span id="L215" class="LineNr">215 </span> <span class="Comment"># push args</span> +<span id="L216" class="LineNr">216 </span> 68/push <span class="Constant">"Ab"</span>/imm32 +<span id="L217" class="LineNr">217 </span> 68/push <span class="Special">Abc-kernel-string</span>/imm32 +<span id="L218" class="LineNr">218 </span> <span class="Comment"># call</span> +<span id="L219" class="LineNr">219 </span> e8/call kernel-string-equal/disp32 +<span id="L220" class="LineNr">220 </span> <span class="Comment"># discard args</span> +<span id="L221" class="LineNr">221 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L222" class="LineNr">222 </span> <span class="Comment"># call check-ints-equal(EAX, 0)</span> +<span id="L223" class="LineNr">223 </span> <span class="Comment"># push args</span> +<span id="L224" class="LineNr">224 </span> 68/push <span class="Constant">"F - test-compare-kernel-string-with-shorter-array"</span>/imm32 +<span id="L225" class="LineNr">225 </span> 68/push 0/imm32/false +<span id="L226" class="LineNr">226 </span> 50/push-EAX +<span id="L227" class="LineNr">227 </span> <span class="Comment"># call</span> +<span id="L228" class="LineNr">228 </span> e8/call check-ints-equal/disp32 +<span id="L229" class="LineNr">229 </span> <span class="Comment"># discard args</span> +<span id="L230" class="LineNr">230 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L231" class="LineNr">231 </span> c3/return +<span id="L232" class="LineNr">232 </span> +<span id="L233" class="LineNr">233 </span>test-compare-kernel-string-with-longer-array: +<span id="L234" class="LineNr">234 </span> <span class="Comment"># EAX = kernel-string-equal(Abc-kernel-string, "Abcd")</span> +<span id="L235" class="LineNr">235 </span> <span class="Comment"># push args</span> +<span id="L236" class="LineNr">236 </span> 68/push <span class="Constant">"Abcd"</span>/imm32 +<span id="L237" class="LineNr">237 </span> 68/push <span class="Special">Abc-kernel-string</span>/imm32 +<span id="L238" class="LineNr">238 </span> <span class="Comment"># call</span> +<span id="L239" class="LineNr">239 </span> e8/call kernel-string-equal/disp32 +<span id="L240" class="LineNr">240 </span> <span class="Comment"># discard args</span> +<span id="L241" class="LineNr">241 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L242" class="LineNr">242 </span> <span class="Comment"># call check-ints-equal(EAX, 0)</span> +<span id="L243" class="LineNr">243 </span> <span class="Comment"># push args</span> +<span id="L244" class="LineNr">244 </span> 68/push <span class="Constant">"F - test-compare-kernel-string-with-longer-array"</span>/imm32 +<span id="L245" class="LineNr">245 </span> 68/push 0/imm32/false +<span id="L246" class="LineNr">246 </span> 50/push-EAX +<span id="L247" class="LineNr">247 </span> <span class="Comment"># call</span> +<span id="L248" class="LineNr">248 </span> e8/call check-ints-equal/disp32 +<span id="L249" class="LineNr">249 </span> <span class="Comment"># discard args</span> +<span id="L250" class="LineNr">250 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span> +<span id="L251" class="LineNr">251 </span> c3/return +<span id="L252" class="LineNr">252 </span> +<span id="L253" class="LineNr">253 </span><span class="SalientComment">## helpers</span> +<span id="L254" class="LineNr">254 </span> +<span id="L255" class="LineNr">255 </span><span class="Comment"># print msg to stderr if a != b, otherwise print "."</span> +<span id="L256" class="LineNr">256 </span>check-ints-equal: <span class="Comment"># (a : int, b : int, msg : (address array byte)) -> boolean</span> +<span id="L257" class="LineNr">257 </span> <span class="Comment"># prolog</span> +<span id="L258" class="LineNr">258 </span> 55/push-EBP +<span id="L259" class="LineNr">259 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L260" class="LineNr">260 </span> <span class="Comment"># save registers</span> +<span id="L261" class="LineNr">261 </span> 51/push-ECX +<span id="L262" class="LineNr">262 </span> 53/push-EBX +<span id="L263" class="LineNr">263 </span> <span class="Comment"># load args into EAX, EBX and ECX</span> +<span id="L264" class="LineNr">264 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span> +<span id="L265" class="LineNr">265 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EBX</span> +<span id="L266" class="LineNr">266 </span> <span class="Comment"># if EAX == b/EBX</span> +<span id="L267" class="LineNr">267 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX and EBX</span> +<span id="L268" class="LineNr">268 </span> 75/jump-if-unequal $check-ints-equal:else/disp8 +<span id="L269" class="LineNr">269 </span> <span class="Comment"># print('.')</span> +<span id="L270" class="LineNr">270 </span> <span class="Comment"># push args</span> +<span id="L271" class="LineNr">271 </span> 68/push <span class="Constant">"."</span>/imm32 +<span id="L272" class="LineNr">272 </span> <span class="Comment"># call</span> +<span id="L273" class="LineNr">273 </span> e8/call write-stderr/disp32 +<span id="L274" class="LineNr">274 </span> <span class="Comment"># discard args</span> +<span id="L275" class="LineNr">275 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L276" class="LineNr">276 </span> <span class="Comment"># return</span> +<span id="L277" class="LineNr">277 </span> eb/jump $check-ints-equal:end/disp8 +<span id="L278" class="LineNr">278 </span> <span class="Comment"># else:</span> +<span id="L279" class="LineNr">279 </span>$check-ints-equal:else: +<span id="L280" class="LineNr">280 </span> <span class="Comment"># copy msg into ECX</span> +<span id="L281" class="LineNr">281 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 0x10/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+16) to ECX</span> +<span id="L282" class="LineNr">282 </span> <span class="Comment"># print(ECX)</span> +<span id="L283" class="LineNr">283 </span> <span class="Comment"># push args</span> +<span id="L284" class="LineNr">284 </span> 51/push-ECX +<span id="L285" class="LineNr">285 </span> <span class="Comment"># call</span> +<span id="L286" class="LineNr">286 </span> e8/call write-stderr/disp32 +<span id="L287" class="LineNr">287 </span> <span class="Comment"># discard args</span> +<span id="L288" class="LineNr">288 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L289" class="LineNr">289 </span> <span class="Comment"># print newline</span> +<span id="L290" class="LineNr">290 </span> <span class="Comment"># push args</span> +<span id="L291" class="LineNr">291 </span> 68/push <span class="Special">Newline</span>/imm32 +<span id="L292" class="LineNr">292 </span> <span class="Comment"># call</span> +<span id="L293" class="LineNr">293 </span> e8/call write-stderr/disp32 +<span id="L294" class="LineNr">294 </span> <span class="Comment"># discard args</span> +<span id="L295" class="LineNr">295 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L296" class="LineNr">296 </span>$check-ints-equal:end: +<span id="L297" class="LineNr">297 </span> <span class="Comment"># restore registers</span> +<span id="L298" class="LineNr">298 </span> 5b/pop-to-EBX +<span id="L299" class="LineNr">299 </span> 59/pop-to-ECX +<span id="L300" class="LineNr">300 </span> <span class="Comment"># end</span> +<span id="L301" class="LineNr">301 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L302" class="LineNr">302 </span> 5d/pop-to-EBP +<span id="L303" class="LineNr">303 </span> c3/return +<span id="L304" class="LineNr">304 </span> +<span id="L305" class="LineNr">305 </span>write-stderr: <span class="Comment"># s : (address array byte) -> <void></span> +<span id="L306" class="LineNr">306 </span> <span class="Comment"># prolog</span> +<span id="L307" class="LineNr">307 </span> 55/push-EBP +<span id="L308" class="LineNr">308 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L309" class="LineNr">309 </span> <span class="Comment"># save registers</span> +<span id="L310" class="LineNr">310 </span> 50/push-EAX +<span id="L311" class="LineNr">311 </span> 51/push-ECX +<span id="L312" class="LineNr">312 </span> 52/push-EDX +<span id="L313" class="LineNr">313 </span> 53/push-EBX +<span id="L314" class="LineNr">314 </span> <span class="Comment"># syscall(write, 2/stderr, (data) s+4, (size) *s)</span> +<span id="L315" class="LineNr">315 </span> <span class="Comment"># fd = 2 (stderr)</span> +<span id="L316" class="LineNr">316 </span> bb/copy-to-EBX 2/imm32 +<span id="L317" class="LineNr">317 </span> <span class="Comment"># x = s+4</span> +<span id="L318" class="LineNr">318 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to ECX</span> +<span id="L319" class="LineNr">319 </span> 81 0/subop/add 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ECX</span> +<span id="L320" class="LineNr">320 </span> <span class="Comment"># size = *s</span> +<span id="L321" class="LineNr">321 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDX</span> +<span id="L322" class="LineNr">322 </span> 8b/copy 0/mod/indirect 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDX to EDX</span> +<span id="L323" class="LineNr">323 </span> <span class="Comment"># syscall</span> +<span id="L324" class="LineNr">324 </span> b8/copy-to-EAX 4/imm32/write +<span id="L325" class="LineNr">325 </span> cd/syscall 0x80/imm8 +<span id="L326" class="LineNr">326 </span> <span class="Comment"># restore registers</span> +<span id="L327" class="LineNr">327 </span> 5b/pop-to-EBX +<span id="L328" class="LineNr">328 </span> 5a/pop-to-EDX +<span id="L329" class="LineNr">329 </span> 59/pop-to-ECX +<span id="L330" class="LineNr">330 </span> 58/pop-to-EAX +<span id="L331" class="LineNr">331 </span> <span class="Comment"># end</span> +<span id="L332" class="LineNr">332 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span> +<span id="L333" class="LineNr">333 </span> 5d/pop-to-EBP +<span id="L334" class="LineNr">334 </span> c3/return +<span id="L335" class="LineNr">335 </span> +<span id="L336" class="LineNr">336 </span>== data +<span id="L337" class="LineNr">337 </span> +<span id="L338" class="LineNr">338 </span><span class="Special">Newline</span>: <span id="L339" class="LineNr">339 </span> <span class="Comment"># size</span> <span id="L340" class="LineNr">340 </span> 01 00 00 00 <span id="L341" class="LineNr">341 </span> <span class="Comment"># data</span> <span id="L342" class="LineNr">342 </span> 0a/newline <span id="L343" class="LineNr">343 </span> <span id="L344" class="LineNr">344 </span><span class="Comment"># for kernel-string-equal tests</span> -<span id="L345" class="LineNr">345 </span>Null-kernel-string: +<span id="L345" class="LineNr">345 </span><span class="Special">Null-kernel-string</span>: <span id="L346" class="LineNr">346 </span> 00/null -<span id="L347" class="LineNr">347 </span>Abc-kernel-string: -<span id="L348" class="LineNr">348 </span> 41/A 62/b 63/c 00/null +<span id="L347" class="LineNr">347 </span><span class="Special">Abc-kernel-string</span>: +<span id="L348" class="LineNr">348 </span> 41/<span class="Special">A</span> 62/b 63/c 00/null <span id="L349" class="LineNr">349 </span> <span id="L350" class="LineNr">350 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> diff --git a/html/subx/examples/ex12.subx.html b/html/subx/examples/ex12.subx.html index b4ad239c..ac02a719 100644 --- a/html/subx/examples/ex12.subx.html +++ b/html/subx/examples/ex12.subx.html @@ -17,6 +17,7 @@ a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } .Delimiter { color: #800080; } +.Special { color: #c00000; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -68,7 +69,7 @@ if ('onhashchange' in window) { <span id="L12" class="LineNr">12 </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="L13" class="LineNr">13 </span> <span id="L14" class="LineNr">14 </span> <span class="Comment"># syscall(mmap, 0x1000)</span> -<span id="L15" class="LineNr">15 </span> bb/copy-to-EBX mmap-new-segment/imm32 +<span id="L15" class="LineNr">15 </span> bb/copy-to-EBX <span class="Special">Mmap-new-segment</span>/imm32 <span id="L16" class="LineNr">16 </span> b8/copy-to-EAX 0x5a/imm32/mmap <span id="L17" class="LineNr">17 </span> cd/syscall 0x80/imm8 <span id="L18" class="LineNr">18 </span> @@ -81,22 +82,23 @@ if ('onhashchange' in window) { <span id="L25" class="LineNr">25 </span> cd/syscall 0x80/imm8 <span id="L26" class="LineNr">26 </span> <span id="L27" class="LineNr">27 </span>== data -<span id="L28" class="LineNr">28 </span><span class="Comment"># various constants used here were found in the Linux sources (search for file mman-common.h)</span> -<span id="L29" class="LineNr">29 </span>mmap-new-segment: <span class="Comment"># type mmap_arg_struct</span> -<span id="L30" class="LineNr">30 </span> <span class="Comment"># addr</span> -<span id="L31" class="LineNr">31 </span> 00 00 00 00 <span class="Comment"># null</span> -<span id="L32" class="LineNr">32 </span> <span class="Comment"># len</span> -<span id="L33" class="LineNr">33 </span> 00 01 00 00 <span class="Comment"># 0x1000</span> -<span id="L34" class="LineNr">34 </span> <span class="Comment"># protection flags</span> -<span id="L35" class="LineNr">35 </span> 03 00 00 00 <span class="Comment"># PROT_READ | PROT_WRITE</span> -<span id="L36" class="LineNr">36 </span> <span class="Comment"># sharing flags</span> -<span id="L37" class="LineNr">37 </span> 22 00 00 00 <span class="Comment"># MAP_PRIVATE | MAP_ANONYMOUS</span> -<span id="L38" class="LineNr">38 </span> <span class="Comment"># fd</span> -<span id="L39" class="LineNr">39 </span> ff ff ff ff <span class="Comment"># -1 since MAP_ANONYMOUS is specified</span> -<span id="L40" class="LineNr">40 </span> <span class="Comment"># offset</span> -<span id="L41" class="LineNr">41 </span> 00 00 00 00 <span class="Comment"># 0 since MAP_ANONYMOUS is specified</span> -<span id="L42" class="LineNr">42 </span> -<span id="L43" class="LineNr">43 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L28" class="LineNr">28 </span> +<span id="L29" class="LineNr">29 </span><span class="Comment"># various constants used here were found in the Linux sources (search for file mman-common.h)</span> +<span id="L30" class="LineNr">30 </span><span class="Special">Mmap-new-segment</span>: <span class="Comment"># type mmap_arg_struct</span> +<span id="L31" class="LineNr">31 </span> <span class="Comment"># addr</span> +<span id="L32" class="LineNr">32 </span> 00 00 00 00 <span class="Comment"># null</span> +<span id="L33" class="LineNr">33 </span> <span class="Comment"># len</span> +<span id="L34" class="LineNr">34 </span> 00 01 00 00 <span class="Comment"># 0x1000</span> +<span id="L35" class="LineNr">35 </span> <span class="Comment"># protection flags</span> +<span id="L36" class="LineNr">36 </span> 03 00 00 00 <span class="Comment"># PROT_READ | PROT_WRITE</span> +<span id="L37" class="LineNr">37 </span> <span class="Comment"># sharing flags</span> +<span id="L38" class="LineNr">38 </span> 22 00 00 00 <span class="Comment"># MAP_PRIVATE | MAP_ANONYMOUS</span> +<span id="L39" class="LineNr">39 </span> <span class="Comment"># fd</span> +<span id="L40" class="LineNr">40 </span> ff ff ff ff <span class="Comment"># -1 since MAP_ANONYMOUS is specified</span> +<span id="L41" class="LineNr">41 </span> <span class="Comment"># offset</span> +<span id="L42" class="LineNr">42 </span> 00 00 00 00 <span class="Comment"># 0 since MAP_ANONYMOUS is specified</span> +<span id="L43" class="LineNr">43 </span> +<span id="L44" class="LineNr">44 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex2.subx.html b/html/subx/examples/ex2.subx.html index 640e0bdf..bb45914d 100644 --- a/html/subx/examples/ex2.subx.html +++ b/html/subx/examples/ex2.subx.html @@ -63,13 +63,14 @@ if ('onhashchange' in window) { <span id="L8" class="LineNr"> 8 </span><span class="Comment"># 2</span> <span id="L9" class="LineNr"> 9 </span> <span id="L10" class="LineNr">10 </span>== code -<span id="L11" class="LineNr">11 </span>bb/copy-to-EBX 1/imm32 -<span id="L12" class="LineNr">12 </span>43/inc-EBX -<span id="L13" class="LineNr">13 </span><span class="Comment"># exit(EBX)</span> -<span id="L14" class="LineNr">14 </span>b8/copy-to-EAX 1/imm32 -<span id="L15" class="LineNr">15 </span>cd/syscall 0x80/imm8 -<span id="L16" class="LineNr">16 </span> -<span id="L17" class="LineNr">17 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L11" class="LineNr">11 </span> +<span id="L12" class="LineNr">12 </span>bb/copy-to-EBX 1/imm32 +<span id="L13" class="LineNr">13 </span>43/inc-EBX +<span id="L14" class="LineNr">14 </span><span class="Comment"># exit(EBX)</span> +<span id="L15" class="LineNr">15 </span>b8/copy-to-EAX 1/imm32 +<span id="L16" class="LineNr">16 </span>cd/syscall 0x80/imm8 +<span id="L17" class="LineNr">17 </span> +<span id="L18" class="LineNr">18 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex3.subx.html b/html/subx/examples/ex3.subx.html index 140d9224..8323af89 100644 --- a/html/subx/examples/ex3.subx.html +++ b/html/subx/examples/ex3.subx.html @@ -67,28 +67,29 @@ if ('onhashchange' in window) { <span id="L11" class="LineNr">11 </span><span class="Comment"># instruction effective address operand displacement immediate</span> <span id="L12" class="LineNr">12 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L13" class="LineNr">13 </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="L14" class="LineNr">14 </span> <span class="Comment"># result: EBX = 0</span> -<span id="L15" class="LineNr">15 </span> bb/copy-to-EBX 0/imm32 -<span id="L16" class="LineNr">16 </span> <span class="Comment"># counter: ECX = 1</span> -<span id="L17" class="LineNr">17 </span> b9/copy-to-ECX 1/imm32 -<span id="L18" class="LineNr">18 </span> -<span id="L19" class="LineNr">19 </span>$loop: -<span id="L20" class="LineNr">20 </span> <span class="Comment"># while (counter <= 10)</span> -<span id="L21" class="LineNr">21 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xa/imm32 <span class="Comment"># compare ECX</span> -<span id="L22" class="LineNr">22 </span> 7f/jump-if-greater $exit/disp8 -<span id="L23" class="LineNr">23 </span> <span class="Comment"># result += counter</span> -<span id="L24" class="LineNr">24 </span> 01/add 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># add ECX to EBX</span> -<span id="L25" class="LineNr">25 </span> <span class="Comment"># ++counter</span> -<span id="L26" class="LineNr">26 </span> 41/inc-ECX -<span id="L27" class="LineNr">27 </span> <span class="Comment"># loop</span> -<span id="L28" class="LineNr">28 </span> eb/jump $loop/disp8 -<span id="L29" class="LineNr">29 </span> -<span id="L30" class="LineNr">30 </span>$exit: -<span id="L31" class="LineNr">31 </span> <span class="Comment"># exit(EBX)</span> -<span id="L32" class="LineNr">32 </span> b8/copy-to-EAX 1/imm32 -<span id="L33" class="LineNr">33 </span> cd/syscall 0x80/imm8 -<span id="L34" class="LineNr">34 </span> -<span id="L35" class="LineNr">35 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L14" class="LineNr">14 </span> +<span id="L15" class="LineNr">15 </span> <span class="Comment"># result: EBX = 0</span> +<span id="L16" class="LineNr">16 </span> bb/copy-to-EBX 0/imm32 +<span id="L17" class="LineNr">17 </span> <span class="Comment"># counter: ECX = 1</span> +<span id="L18" class="LineNr">18 </span> b9/copy-to-ECX 1/imm32 +<span id="L19" class="LineNr">19 </span> +<span id="L20" class="LineNr">20 </span>$loop: +<span id="L21" class="LineNr">21 </span> <span class="Comment"># while (counter <= 10)</span> +<span id="L22" class="LineNr">22 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xa/imm32 <span class="Comment"># compare ECX</span> +<span id="L23" class="LineNr">23 </span> 7f/jump-if-greater $exit/disp8 +<span id="L24" class="LineNr">24 </span> <span class="Comment"># result += counter</span> +<span id="L25" class="LineNr">25 </span> 01/add 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># add ECX to EBX</span> +<span id="L26" class="LineNr">26 </span> <span class="Comment"># ++counter</span> +<span id="L27" class="LineNr">27 </span> 41/inc-ECX +<span id="L28" class="LineNr">28 </span> <span class="Comment"># loop</span> +<span id="L29" class="LineNr">29 </span> eb/jump $loop/disp8 +<span id="L30" class="LineNr">30 </span> +<span id="L31" class="LineNr">31 </span>$exit: +<span id="L32" class="LineNr">32 </span> <span class="Comment"># exit(EBX)</span> +<span id="L33" class="LineNr">33 </span> b8/copy-to-EAX 1/imm32 +<span id="L34" class="LineNr">34 </span> cd/syscall 0x80/imm8 +<span id="L35" class="LineNr">35 </span> +<span id="L36" class="LineNr">36 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex4.subx.html b/html/subx/examples/ex4.subx.html index ba639cde..3db6e2ec 100644 --- a/html/subx/examples/ex4.subx.html +++ b/html/subx/examples/ex4.subx.html @@ -16,6 +16,7 @@ a { color:#eeeeee; text-decoration: none; } a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } +.Special { color: #c00000; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -60,37 +61,39 @@ if ('onhashchange' in window) { <span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ subx run examples/ex4</span> <span id="L6" class="LineNr"> 6 </span> <span id="L7" class="LineNr"> 7 </span>== code -<span id="L8" class="LineNr"> 8 </span><span class="Comment"># syscall(read, stdin, x, 1)</span> -<span id="L9" class="LineNr"> 9 </span> <span class="Comment"># fd = 0 (stdin)</span> -<span id="L10" class="LineNr">10 </span>bb/copy-to-EBX 0/imm32 -<span id="L11" class="LineNr">11 </span> <span class="Comment"># initialize x (location to write result to)</span> -<span id="L12" class="LineNr">12 </span>b9/copy-to-ECX x/imm32 -<span id="L13" class="LineNr">13 </span> <span class="Comment"># size = 1 character</span> -<span id="L14" class="LineNr">14 </span>ba/copy-to-EDX 1/imm32 -<span id="L15" class="LineNr">15 </span> <span class="Comment"># syscall</span> -<span id="L16" class="LineNr">16 </span>b8/copy-to-EAX 3/imm32/read -<span id="L17" class="LineNr">17 </span>cd/syscall 0x80/imm8 -<span id="L18" class="LineNr">18 </span> -<span id="L19" class="LineNr">19 </span><span class="Comment"># syscall(write, stdout, x, 1)</span> -<span id="L20" class="LineNr">20 </span> <span class="Comment"># fd = 1 (stdout)</span> -<span id="L21" class="LineNr">21 </span>bb/copy-to-EBX 1/imm32 -<span id="L22" class="LineNr">22 </span> <span class="Comment"># initialize x (location to read from)</span> -<span id="L23" class="LineNr">23 </span>b9/copy-to-ECX x/imm32 -<span id="L24" class="LineNr">24 </span> <span class="Comment"># size = 1 character</span> -<span id="L25" class="LineNr">25 </span>ba/copy-to-EDX 1/imm32 -<span id="L26" class="LineNr">26 </span> <span class="Comment"># syscall</span> -<span id="L27" class="LineNr">27 </span>b8/copy-to-EAX 4/imm32/write -<span id="L28" class="LineNr">28 </span>cd/syscall 0x80/imm8 -<span id="L29" class="LineNr">29 </span> -<span id="L30" class="LineNr">30 </span><span class="Comment"># syscall(exit, EBX)</span> -<span id="L31" class="LineNr">31 </span>b8/copy-to-EAX 1/imm32/exit -<span id="L32" class="LineNr">32 </span>cd/syscall 0x80/imm8 -<span id="L33" class="LineNr">33 </span> -<span id="L34" class="LineNr">34 </span>== data -<span id="L35" class="LineNr">35 </span>x: -<span id="L36" class="LineNr">36 </span> 00 00 00 00 <span class="Comment"># space for read() to write to</span> -<span id="L37" class="LineNr">37 </span> -<span id="L38" class="LineNr">38 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L8" class="LineNr"> 8 </span> +<span id="L9" class="LineNr"> 9 </span><span class="Comment"># syscall(read, stdin, X, 1)</span> +<span id="L10" class="LineNr">10 </span> <span class="Comment"># fd = 0 (stdin)</span> +<span id="L11" class="LineNr">11 </span>bb/copy-to-EBX 0/imm32 +<span id="L12" class="LineNr">12 </span> <span class="Comment"># initialize X (location to write result to)</span> +<span id="L13" class="LineNr">13 </span>b9/copy-to-ECX <span class="Special">X</span>/imm32 +<span id="L14" class="LineNr">14 </span> <span class="Comment"># size = 1 character</span> +<span id="L15" class="LineNr">15 </span>ba/copy-to-EDX 1/imm32 +<span id="L16" class="LineNr">16 </span> <span class="Comment"># syscall</span> +<span id="L17" class="LineNr">17 </span>b8/copy-to-EAX 3/imm32/read +<span id="L18" class="LineNr">18 </span>cd/syscall 0x80/imm8 +<span id="L19" class="LineNr">19 </span> +<span id="L20" class="LineNr">20 </span><span class="Comment"># syscall(write, stdout, X, 1)</span> +<span id="L21" class="LineNr">21 </span> <span class="Comment"># fd = 1 (stdout)</span> +<span id="L22" class="LineNr">22 </span>bb/copy-to-EBX 1/imm32 +<span id="L23" class="LineNr">23 </span> <span class="Comment"># initialize X (location to read from)</span> +<span id="L24" class="LineNr">24 </span>b9/copy-to-ECX <span class="Special">X</span>/imm32 +<span id="L25" class="LineNr">25 </span> <span class="Comment"># size = 1 character</span> +<span id="L26" class="LineNr">26 </span>ba/copy-to-EDX 1/imm32 +<span id="L27" class="LineNr">27 </span> <span class="Comment"># syscall</span> +<span id="L28" class="LineNr">28 </span>b8/copy-to-EAX 4/imm32/write +<span id="L29" class="LineNr">29 </span>cd/syscall 0x80/imm8 +<span id="L30" class="LineNr">30 </span> +<span id="L31" class="LineNr">31 </span><span class="Comment"># syscall(exit, EBX)</span> +<span id="L32" class="LineNr">32 </span>b8/copy-to-EAX 1/imm32/exit +<span id="L33" class="LineNr">33 </span>cd/syscall 0x80/imm8 +<span id="L34" class="LineNr">34 </span> +<span id="L35" class="LineNr">35 </span>== data +<span id="L36" class="LineNr">36 </span> +<span id="L37" class="LineNr">37 </span><span class="Special">X</span>: +<span id="L38" class="LineNr">38 </span> 00 00 00 00 <span class="Comment"># space for read() to write to</span> +<span id="L39" class="LineNr">39 </span> +<span id="L40" class="LineNr">40 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex6.subx.html b/html/subx/examples/ex6.subx.html index 5df92a48..ccf6e032 100644 --- a/html/subx/examples/ex6.subx.html +++ b/html/subx/examples/ex6.subx.html @@ -17,6 +17,7 @@ a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } .Delimiter { color: #800080; } +.Special { color: #c00000; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -66,13 +67,13 @@ if ('onhashchange' in window) { <span id="L10" class="LineNr">10 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L11" class="LineNr">11 </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="L12" class="LineNr">12 </span> -<span id="L13" class="LineNr">13 </span> <span class="Comment"># syscall(write, stdout, x, size)</span> +<span id="L13" class="LineNr">13 </span> <span class="Comment"># syscall(write, stdout, X, size)</span> <span id="L14" class="LineNr">14 </span> <span class="Comment"># fd = 1 (stdout)</span> <span id="L15" class="LineNr">15 </span> bb/copy-to-EBX 1/imm32 -<span id="L16" class="LineNr">16 </span> <span class="Comment"># initialize x (location to write result to)</span> -<span id="L17" class="LineNr">17 </span> b9/copy-to-ECX x/imm32 +<span id="L16" class="LineNr">16 </span> <span class="Comment"># initialize X (location to write result to)</span> +<span id="L17" class="LineNr">17 </span> b9/copy-to-ECX <span class="Special">X</span>/imm32 <span id="L18" class="LineNr">18 </span> <span class="Comment"># initialize size</span> -<span id="L19" class="LineNr">19 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX size/disp32 <span class="Delimiter"> . </span> <span class="Comment"># copy *size to EDX</span> +<span id="L19" class="LineNr">19 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Special">Size</span>/disp32 <span class="Delimiter"> . </span> <span class="Comment"># copy *size to EDX</span> <span id="L20" class="LineNr">20 </span> <span class="Comment"># syscall</span> <span id="L21" class="LineNr">21 </span> b8/copy-to-EAX 4/imm32/write <span id="L22" class="LineNr">22 </span> cd/syscall 0x80/imm8 @@ -82,13 +83,14 @@ if ('onhashchange' in window) { <span id="L26" class="LineNr">26 </span> cd/syscall 0x80/imm8 <span id="L27" class="LineNr">27 </span> <span id="L28" class="LineNr">28 </span>== data -<span id="L29" class="LineNr">29 </span>size: <span class="Comment"># size of string</span> -<span id="L30" class="LineNr">30 </span> 0e 00 00 00 <span class="Comment"># 14</span> -<span id="L31" class="LineNr">31 </span>x: <span class="Comment"># string to print</span> -<span id="L32" class="LineNr">32 </span> 48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21 0a 00 -<span id="L33" class="LineNr">33 </span><span class="Comment"># H e l l o , ␣ w o r l d ! newline null</span> -<span id="L34" class="LineNr">34 </span> -<span id="L35" class="LineNr">35 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L29" class="LineNr">29 </span> +<span id="L30" class="LineNr">30 </span><span class="Special">Size</span>: <span class="Comment"># size of string</span> +<span id="L31" class="LineNr">31 </span> 0e 00 00 00 <span class="Comment"># 14</span> +<span id="L32" class="LineNr">32 </span><span class="Special">X</span>: <span class="Comment"># string to print</span> +<span id="L33" class="LineNr">33 </span> 48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21 0a 00 +<span id="L34" class="LineNr">34 </span><span class="Comment"># H e l l o , ␣ w o r l d ! newline null</span> +<span id="L35" class="LineNr">35 </span> +<span id="L36" class="LineNr">36 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex7.subx.html b/html/subx/examples/ex7.subx.html index 3ffc6a49..c41eccbf 100644 --- a/html/subx/examples/ex7.subx.html +++ b/html/subx/examples/ex7.subx.html @@ -17,6 +17,7 @@ a:hover { text-decoration: underline; } * { font-size: 12pt; font-size: 1em; } .LineNr { color: #444444; } .Delimiter { color: #800080; } +.Special { color: #c00000; } .Comment { color: #9090ff; } .Comment a { color:#0000ee; text-decoration:underline; } .SalientComment { color: #00ffff; } @@ -71,92 +72,93 @@ if ('onhashchange' in window) { <span id="L15" class="LineNr"> 15 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L16" class="LineNr"> 16 </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="L17" class="LineNr"> 17 </span> -<span id="L18" class="LineNr"> 18 </span> <span class="Comment"># syscall(creat, filename)</span> -<span id="L19" class="LineNr"> 19 </span> bb/copy-to-EBX filename/imm32 +<span id="L18" class="LineNr"> 18 </span> <span class="Comment"># syscall(creat, Filename)</span> +<span id="L19" class="LineNr"> 19 </span> bb/copy-to-EBX <span class="Special">Filename</span>/imm32 <span id="L20" class="LineNr"> 20 </span> b9/copy-to-ECX 0x180/imm32/fixed-perms <span id="L21" class="LineNr"> 21 </span> b8/copy-to-EAX 8/imm32/creat <span id="L22" class="LineNr"> 22 </span> cd/syscall 0x80/imm8 <span id="L23" class="LineNr"> 23 </span> -<span id="L24" class="LineNr"> 24 </span> <span class="Comment"># stream = syscall(open, filename, O_WRONLY, 0) # we can't use 'fd' because it looks like a hex byte</span> -<span id="L25" class="LineNr"> 25 </span> bb/copy-to-EBX filename/imm32 +<span id="L24" class="LineNr"> 24 </span> <span class="Comment"># stream = syscall(open, Filename, O_WRONLY, 0) # we can't use 'fd' because it looks like a hex byte</span> +<span id="L25" class="LineNr"> 25 </span> bb/copy-to-EBX <span class="Special">Filename</span>/imm32 <span id="L26" class="LineNr"> 26 </span> b9/copy-to-ECX 1/imm32/wronly <span id="L27" class="LineNr"> 27 </span> ba/copy-to-EDX 0x180/imm32/fixed-perms <span id="L28" class="LineNr"> 28 </span> b8/copy-to-EAX 5/imm32/open <span id="L29" class="LineNr"> 29 </span> cd/syscall 0x80/imm8 <span id="L30" class="LineNr"> 30 </span> <span class="Comment"># save stream</span> -<span id="L31" class="LineNr"> 31 </span> bb/copy-to-EBX stream/imm32 +<span id="L31" class="LineNr"> 31 </span> bb/copy-to-EBX <span class="Special">Stream</span>/imm32 <span id="L32" class="LineNr"> 32 </span> 89/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to *EBX</span> <span id="L33" class="LineNr"> 33 </span> -<span id="L34" class="LineNr"> 34 </span> <span class="Comment"># syscall(write, stream, "a", 1)</span> +<span id="L34" class="LineNr"> 34 </span> <span class="Comment"># syscall(write, Stream, "a", 1)</span> <span id="L35" class="LineNr"> 35 </span> <span class="Comment"># load stream</span> -<span id="L36" class="LineNr"> 36 </span> bb/copy-to-EBX stream/imm32 +<span id="L36" class="LineNr"> 36 </span> bb/copy-to-EBX <span class="Special">Stream</span>/imm32 <span id="L37" class="LineNr"> 37 </span> 8b/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EBX to EBX</span> <span id="L38" class="LineNr"> 38 </span> <span class="Comment">#</span> -<span id="L39" class="LineNr"> 39 </span> b9/copy-to-ECX a/imm32 +<span id="L39" class="LineNr"> 39 </span> b9/copy-to-ECX <span class="Special">A</span>/imm32 <span id="L40" class="LineNr"> 40 </span> ba/copy-to-EDX 1/imm32/size <span id="L41" class="LineNr"> 41 </span> b8/copy-to-EAX 4/imm32/write <span id="L42" class="LineNr"> 42 </span> cd/syscall 0x80/imm8 <span id="L43" class="LineNr"> 43 </span> -<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># syscall(close, stream)</span> +<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># syscall(close, Stream)</span> <span id="L45" class="LineNr"> 45 </span> <span class="Comment"># load stream</span> -<span id="L46" class="LineNr"> 46 </span> bb/copy-to-EBX stream/imm32 +<span id="L46" class="LineNr"> 46 </span> bb/copy-to-EBX <span class="Special">Stream</span>/imm32 <span id="L47" class="LineNr"> 47 </span> 8b/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EBX to EBX</span> <span id="L48" class="LineNr"> 48 </span> <span class="Comment">#</span> <span id="L49" class="LineNr"> 49 </span> b8/copy-to-EAX 6/imm32/close <span id="L50" class="LineNr"> 50 </span> cd/syscall 0x80/imm8 <span id="L51" class="LineNr"> 51 </span> -<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># stream = syscall(open, filename, O_RDONLY, 0)</span> -<span id="L53" class="LineNr"> 53 </span> bb/copy-to-EBX filename/imm32 +<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># stream = syscall(open, Filename, O_RDONLY, 0)</span> +<span id="L53" class="LineNr"> 53 </span> bb/copy-to-EBX <span class="Special">Filename</span>/imm32 <span id="L54" class="LineNr"> 54 </span> b9/copy-to-ECX 0/imm32/rdonly <span id="L55" class="LineNr"> 55 </span> ba/copy-to-EDX 0x180/imm32/fixed-perms <span id="L56" class="LineNr"> 56 </span> b8/copy-to-EAX 5/imm32/open <span id="L57" class="LineNr"> 57 </span> cd/syscall 0x80/imm8 -<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># save stream</span> -<span id="L59" class="LineNr"> 59 </span> bb/copy-to-EBX stream/imm32 +<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># save Stream</span> +<span id="L59" class="LineNr"> 59 </span> bb/copy-to-EBX <span class="Special">Stream</span>/imm32 <span id="L60" class="LineNr"> 60 </span> 89/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to *EBX</span> <span id="L61" class="LineNr"> 61 </span> -<span id="L62" class="LineNr"> 62 </span> <span class="Comment"># syscall(read, stream, b, 1)</span> +<span id="L62" class="LineNr"> 62 </span> <span class="Comment"># syscall(read, Stream, B, 1)</span> <span id="L63" class="LineNr"> 63 </span> <span class="Comment"># load stream</span> -<span id="L64" class="LineNr"> 64 </span> bb/copy-to-EBX stream/imm32 +<span id="L64" class="LineNr"> 64 </span> bb/copy-to-EBX <span class="Special">Stream</span>/imm32 <span id="L65" class="LineNr"> 65 </span> 8b/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EBX to EBX</span> <span id="L66" class="LineNr"> 66 </span> <span class="Comment">#</span> -<span id="L67" class="LineNr"> 67 </span> b9/copy-to-ECX b/imm32 +<span id="L67" class="LineNr"> 67 </span> b9/copy-to-ECX <span class="Special">B</span>/imm32 <span id="L68" class="LineNr"> 68 </span> ba/copy-to-EDX 1/imm32/size <span id="L69" class="LineNr"> 69 </span> b8/copy-to-EAX 3/imm32/read <span id="L70" class="LineNr"> 70 </span> cd/syscall 0x80/imm8 <span id="L71" class="LineNr"> 71 </span> -<span id="L72" class="LineNr"> 72 </span> <span class="Comment"># syscall(close, stream)</span> +<span id="L72" class="LineNr"> 72 </span> <span class="Comment"># syscall(close, Stream)</span> <span id="L73" class="LineNr"> 73 </span> <span class="Comment"># load stream</span> -<span id="L74" class="LineNr"> 74 </span> bb/copy-to-EBX stream/imm32 +<span id="L74" class="LineNr"> 74 </span> bb/copy-to-EBX <span class="Special">Stream</span>/imm32 <span id="L75" class="LineNr"> 75 </span> 8b/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EBX to EBX</span> <span id="L76" class="LineNr"> 76 </span> <span class="Comment">#</span> <span id="L77" class="LineNr"> 77 </span> b8/copy-to-EAX 6/imm32/close <span id="L78" class="LineNr"> 78 </span> cd/syscall 0x80/imm8 <span id="L79" class="LineNr"> 79 </span> <span id="L80" class="LineNr"> 80 </span> <span class="Comment"># syscall(unlink, filename)</span> -<span id="L81" class="LineNr"> 81 </span> bb/copy-to-EBX filename/imm32 +<span id="L81" class="LineNr"> 81 </span> bb/copy-to-EBX <span class="Special">Filename</span>/imm32 <span id="L82" class="LineNr"> 82 </span> b8/copy-to-EAX 0xa/imm32/unlink <span id="L83" class="LineNr"> 83 </span> cd/syscall 0x80/imm8 <span id="L84" class="LineNr"> 84 </span> <span id="L85" class="LineNr"> 85 </span> <span class="Comment"># syscall(exit, b)</span> <span id="L86" class="LineNr"> 86 </span> <span class="Comment"># load b</span> -<span id="L87" class="LineNr"> 87 </span> bb/copy-to-EBX b/imm32 +<span id="L87" class="LineNr"> 87 </span> bb/copy-to-EBX <span class="Special">B</span>/imm32 <span id="L88" class="LineNr"> 88 </span> 8b/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EBX to EBX</span> <span id="L89" class="LineNr"> 89 </span> <span class="Comment">#</span> <span id="L90" class="LineNr"> 90 </span> b8/copy-to-EAX 1/imm32/exit <span id="L91" class="LineNr"> 91 </span> cd/syscall 0x80/imm8 <span id="L92" class="LineNr"> 92 </span> <span id="L93" class="LineNr"> 93 </span>== data -<span id="L94" class="LineNr"> 94 </span>stream: -<span id="L95" class="LineNr"> 95 </span> 00 00 00 00 -<span id="L96" class="LineNr"> 96 </span>a: -<span id="L97" class="LineNr"> 97 </span> 61 00 00 00 -<span id="L98" class="LineNr"> 98 </span>b: -<span id="L99" class="LineNr"> 99 </span> 00 00 00 00 -<span id="L100" class="LineNr">100 </span>filename: -<span id="L101" class="LineNr">101 </span> 2e 66 6f 6f 00 00 00 00 -<span id="L102" class="LineNr">102 </span> -<span id="L103" class="LineNr">103 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L94" class="LineNr"> 94 </span> +<span id="L95" class="LineNr"> 95 </span><span class="Special">Stream</span>: +<span id="L96" class="LineNr"> 96 </span> 00 00 00 00 +<span id="L97" class="LineNr"> 97 </span><span class="Special">A</span>: +<span id="L98" class="LineNr"> 98 </span> 61 00 00 00 +<span id="L99" class="LineNr"> 99 </span><span class="Special">B</span>: +<span id="L100" class="LineNr">100 </span> 00 00 00 00 +<span id="L101" class="LineNr">101 </span><span class="Special">Filename</span>: +<span id="L102" class="LineNr">102 </span> 2e 66 6f 6f 00 00 00 00 +<span id="L103" class="LineNr">103 </span> +<span id="L104" class="LineNr">104 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex8.subx.html b/html/subx/examples/ex8.subx.html index f0770c2f..f1868a61 100644 --- a/html/subx/examples/ex8.subx.html +++ b/html/subx/examples/ex8.subx.html @@ -74,43 +74,44 @@ if ('onhashchange' in window) { <span id="L18" class="LineNr">18 </span><span class="Comment"># instruction effective address operand displacement immediate</span> <span id="L19" class="LineNr">19 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L20" class="LineNr">20 </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="L21" class="LineNr">21 </span> <span class="Comment"># prolog</span> -<span id="L22" class="LineNr">22 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> -<span id="L23" class="LineNr">23 </span> <span class="Comment"># call ascii-length(argv[1])</span> -<span id="L24" class="LineNr">24 </span> <span class="Comment"># push args</span> -<span id="L25" class="LineNr">25 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> -<span id="L26" class="LineNr">26 </span> <span class="Comment"># call</span> -<span id="L27" class="LineNr">27 </span> e8/call ascii-length/disp32 -<span id="L28" class="LineNr">28 </span> <span class="Comment"># discard args</span> -<span id="L29" class="LineNr">29 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> -<span id="L30" class="LineNr">30 </span> -<span id="L31" class="LineNr">31 </span> <span class="Comment"># exit(EAX)</span> -<span id="L32" class="LineNr">32 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> -<span id="L33" class="LineNr">33 </span> b8/copy-to-EAX 1/imm32/exit -<span id="L34" class="LineNr">34 </span> cd/syscall 0x80/imm8 -<span id="L35" class="LineNr">35 </span> -<span id="L36" class="LineNr">36 </span>ascii-length: <span class="Comment"># (s)</span> -<span id="L37" class="LineNr">37 </span> <span class="Comment"># initialize s (EDX)</span> -<span id="L38" class="LineNr">38 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EDX</span> -<span id="L39" class="LineNr">39 </span> <span class="Comment"># var result = 0 (EAX)</span> -<span id="L40" class="LineNr">40 </span> b8/copy-to-EAX 0/imm32 -<span id="L41" class="LineNr">41 </span>$ascii-length-loop: -<span id="L42" class="LineNr">42 </span> <span class="Comment"># var c = *s (ECX)</span> -<span id="L43" class="LineNr">43 </span> 8a/copy 0/mod/* 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDX to lower byte of ECX</span> -<span id="L44" class="LineNr">44 </span> <span class="Comment"># if c == '\0' break</span> -<span id="L45" class="LineNr">45 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare ECX</span> -<span id="L46" class="LineNr">46 </span> 74/jump-if-equal $ascii-length-ret/disp8 -<span id="L47" class="LineNr">47 </span> <span class="Comment"># ++s</span> -<span id="L48" class="LineNr">48 </span> 81 0/subop/add 3/mod/direct 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># add to EDX</span> -<span id="L49" class="LineNr">49 </span> <span class="Comment"># ++result</span> -<span id="L50" class="LineNr">50 </span> 40/inc-EAX -<span id="L51" class="LineNr">51 </span> <span class="Comment"># loop</span> -<span id="L52" class="LineNr">52 </span> eb/jump $ascii-length-loop/disp8 -<span id="L53" class="LineNr">53 </span>$ascii-length-ret: -<span id="L54" class="LineNr">54 </span> <span class="Comment"># return (result in EAX)</span> -<span id="L55" class="LineNr">55 </span> c3/return -<span id="L56" class="LineNr">56 </span> -<span id="L57" class="LineNr">57 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L21" class="LineNr">21 </span> +<span id="L22" class="LineNr">22 </span> <span class="Comment"># prolog</span> +<span id="L23" class="LineNr">23 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L24" class="LineNr">24 </span> <span class="Comment"># call ascii-length(argv[1])</span> +<span id="L25" class="LineNr">25 </span> <span class="Comment"># push args</span> +<span id="L26" class="LineNr">26 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> +<span id="L27" class="LineNr">27 </span> <span class="Comment"># call</span> +<span id="L28" class="LineNr">28 </span> e8/call ascii-length/disp32 +<span id="L29" class="LineNr">29 </span> <span class="Comment"># discard args</span> +<span id="L30" class="LineNr">30 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span> +<span id="L31" class="LineNr">31 </span> +<span id="L32" class="LineNr">32 </span> <span class="Comment"># exit(EAX)</span> +<span id="L33" class="LineNr">33 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L34" class="LineNr">34 </span> b8/copy-to-EAX 1/imm32/exit +<span id="L35" class="LineNr">35 </span> cd/syscall 0x80/imm8 +<span id="L36" class="LineNr">36 </span> +<span id="L37" class="LineNr">37 </span>ascii-length: <span class="Comment"># (s)</span> +<span id="L38" class="LineNr">38 </span> <span class="Comment"># initialize s (EDX)</span> +<span id="L39" class="LineNr">39 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 2/r32/EDX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EDX</span> +<span id="L40" class="LineNr">40 </span> <span class="Comment"># var result = 0 (EAX)</span> +<span id="L41" class="LineNr">41 </span> b8/copy-to-EAX 0/imm32 +<span id="L42" class="LineNr">42 </span>$ascii-length-loop: +<span id="L43" class="LineNr">43 </span> <span class="Comment"># var c = *s (ECX)</span> +<span id="L44" class="LineNr">44 </span> 8a/copy 0/mod/* 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EDX to lower byte of ECX</span> +<span id="L45" class="LineNr">45 </span> <span class="Comment"># if c == '\0' break</span> +<span id="L46" class="LineNr">46 </span> 81 7/subop/compare 3/mod/direct 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare ECX</span> +<span id="L47" class="LineNr">47 </span> 74/jump-if-equal $ascii-length-ret/disp8 +<span id="L48" class="LineNr">48 </span> <span class="Comment"># ++s</span> +<span id="L49" class="LineNr">49 </span> 81 0/subop/add 3/mod/direct 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># add to EDX</span> +<span id="L50" class="LineNr">50 </span> <span class="Comment"># ++result</span> +<span id="L51" class="LineNr">51 </span> 40/inc-EAX +<span id="L52" class="LineNr">52 </span> <span class="Comment"># loop</span> +<span id="L53" class="LineNr">53 </span> eb/jump $ascii-length-loop/disp8 +<span id="L54" class="LineNr">54 </span>$ascii-length-ret: +<span id="L55" class="LineNr">55 </span> <span class="Comment"># return (result in EAX)</span> +<span id="L56" class="LineNr">56 </span> c3/return +<span id="L57" class="LineNr">57 </span> +<span id="L58" class="LineNr">58 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> diff --git a/html/subx/examples/ex9.subx.html b/html/subx/examples/ex9.subx.html index 32f81d1c..f949f02a 100644 --- a/html/subx/examples/ex9.subx.html +++ b/html/subx/examples/ex9.subx.html @@ -76,34 +76,35 @@ if ('onhashchange' in window) { <span id="L20" class="LineNr">20 </span><span class="Comment"># instruction effective address operand displacement immediate</span> <span id="L21" class="LineNr">21 </span><span class="Comment"># op subop mod rm32 base index scale r32</span> <span id="L22" class="LineNr">22 </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="L23" class="LineNr">23 </span> <span class="Comment"># prolog</span> -<span id="L24" class="LineNr">24 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> -<span id="L25" class="LineNr">25 </span> <span class="Comment"># call ascii-difference(argv[1], argv[2])</span> -<span id="L26" class="LineNr">26 </span> <span class="Comment"># push argv[2]</span> -<span id="L27" class="LineNr">27 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span> -<span id="L28" class="LineNr">28 </span> <span class="Comment"># push argv[1]</span> -<span id="L29" class="LineNr">29 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> -<span id="L30" class="LineNr">30 </span> <span class="Comment"># call</span> -<span id="L31" class="LineNr">31 </span> e8/call ascii-difference/disp32 -<span id="L32" class="LineNr">32 </span> <span class="Comment"># discard args</span> -<span id="L33" class="LineNr">33 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> -<span id="L34" class="LineNr">34 </span> <span class="Comment"># exit(EAX)</span> -<span id="L35" class="LineNr">35 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> -<span id="L36" class="LineNr">36 </span> b8/copy-to-EAX 1/imm32/exit -<span id="L37" class="LineNr">37 </span> cd/syscall 0x80/imm8 -<span id="L38" class="LineNr">38 </span> -<span id="L39" class="LineNr">39 </span>ascii-difference: <span class="Comment"># (s1, s2) : null-terminated ascii strings</span> -<span id="L40" class="LineNr">40 </span> <span class="Comment"># a = first letter of s1 (ECX)</span> -<span id="L41" class="LineNr">41 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 0/r32/EAX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EAX</span> -<span id="L42" class="LineNr">42 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EAX to EAX</span> -<span id="L43" class="LineNr">43 </span> <span class="Comment"># b = first letter of s2 (EDX)</span> -<span id="L44" class="LineNr">44 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 1/r32/ECX 8/disp8 <span class="Comment"># copy *(ESP+8) to ECX</span> -<span id="L45" class="LineNr">45 </span> 8b/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *ECX to ECX</span> -<span id="L46" class="LineNr">46 </span> <span class="Comment"># a-b</span> -<span id="L47" class="LineNr">47 </span> 29/subtract 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># subtract ECX from EAX</span> -<span id="L48" class="LineNr">48 </span> c3/return -<span id="L49" class="LineNr">49 </span> -<span id="L50" class="LineNr">50 </span><span class="Comment"># vim:nowrap:textwidth=0</span> +<span id="L23" class="LineNr">23 </span> +<span id="L24" class="LineNr">24 </span> <span class="Comment"># prolog</span> +<span id="L25" class="LineNr">25 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span> +<span id="L26" class="LineNr">26 </span> <span class="Comment"># call ascii-difference(argv[1], argv[2])</span> +<span id="L27" class="LineNr">27 </span> <span class="Comment"># push argv[2]</span> +<span id="L28" class="LineNr">28 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span> +<span id="L29" class="LineNr">29 </span> <span class="Comment"># push argv[1]</span> +<span id="L30" class="LineNr">30 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span> +<span id="L31" class="LineNr">31 </span> <span class="Comment"># call</span> +<span id="L32" class="LineNr">32 </span> e8/call ascii-difference/disp32 +<span id="L33" class="LineNr">33 </span> <span class="Comment"># discard args</span> +<span id="L34" class="LineNr">34 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span> +<span id="L35" class="LineNr">35 </span> <span class="Comment"># exit(EAX)</span> +<span id="L36" class="LineNr">36 </span> 89/copy 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to EBX</span> +<span id="L37" class="LineNr">37 </span> b8/copy-to-EAX 1/imm32/exit +<span id="L38" class="LineNr">38 </span> cd/syscall 0x80/imm8 +<span id="L39" class="LineNr">39 </span> +<span id="L40" class="LineNr">40 </span>ascii-difference: <span class="Comment"># (s1, s2) : null-terminated ascii strings</span> +<span id="L41" class="LineNr">41 </span> <span class="Comment"># a = first letter of s1 (ECX)</span> +<span id="L42" class="LineNr">42 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 0/r32/EAX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EAX</span> +<span id="L43" class="LineNr">43 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EAX to EAX</span> +<span id="L44" class="LineNr">44 </span> <span class="Comment"># b = first letter of s2 (EDX)</span> +<span id="L45" class="LineNr">45 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 1/r32/ECX 8/disp8 <span class="Comment"># copy *(ESP+8) to ECX</span> +<span id="L46" class="LineNr">46 </span> 8b/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *ECX to ECX</span> +<span id="L47" class="LineNr">47 </span> <span class="Comment"># a-b</span> +<span id="L48" class="LineNr">48 </span> 29/subtract 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># subtract ECX from EAX</span> +<span id="L49" class="LineNr">49 </span> c3/return +<span id="L50" class="LineNr">50 </span> +<span id="L51" class="LineNr">51 </span><span class="Comment"># vim:nowrap:textwidth=0</span> </pre> </body> </html> |