diff options
| author | Kartik Agaram <vc@akkartik.com> | 2019-02-14 23:00:47 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2019-02-14 23:00:47 -0800 |
| commit | 9309600c5a8a5a86ac5aeebdee7bf0656409fc26 (patch) | |
| tree | 3b9420b7a4af72a85401fbce4a90e9a9c88dc85b /html/subx/054string-equal.subx.html | |
| parent | db2be4dd83ebfb37dc44873aa1a15ae0da47c15d (diff) | |
| download | mu-9309600c5a8a5a86ac5aeebdee7bf0656409fc26.tar.gz | |
4967
Diffstat (limited to 'html/subx/054string-equal.subx.html')
| -rw-r--r-- | html/subx/054string-equal.subx.html | 338 |
1 files changed, 176 insertions, 162 deletions
diff --git a/html/subx/054string-equal.subx.html b/html/subx/054string-equal.subx.html index be10a769..99c372f1 100644 --- a/html/subx/054string-equal.subx.html +++ b/html/subx/054string-equal.subx.html @@ -18,11 +18,12 @@ a { color:inherit; } .Constant { color: #008787; } .LineNr { } .subxS1Comment { color: #0000af; } -.SpecialChar { color: #d70000; } +.CommentedCode { color: #8a8a8a; } .subxFunction { color: #af5f00; text-decoration: underline; } .subxTest { color: #5f8700; } .Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; } .subxS2Comment { color: #8a8a8a; } +.SpecialChar { color: #d70000; } .subxH1Comment { color: #005faf; text-decoration: underline; } --> </style> @@ -68,167 +69,180 @@ if ('onhashchange' in window) { <span id="L7" class="LineNr"> 7 </span> <span id="L8" class="LineNr"> 8 </span><span class="subxComment"># main:</span> <span id="L9" class="LineNr"> 9 </span> <span class="subxComment"># run-tests()</span> -<span id="L10" class="LineNr"> 10 </span> e8/call run-tests/disp32 <span class="subxComment"># 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.</span> -<span id="L11" class="LineNr"> 11 </span> <span class="subxComment"># syscall(exit, Num-test-failures)</span> -<span id="L12" class="LineNr"> 12 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/EBX <span class="SpecialChar"><a href='051test.subx.html#L90'>Num-test-failures</a></span>/disp32 <span class="subxComment"># copy *Num-test-failures to EBX</span> -<span id="L13" class="LineNr"> 13 </span> b8/copy-to-EAX 1/imm32/exit -<span id="L14" class="LineNr"> 14 </span> cd/syscall 0x80/imm8 -<span id="L15" class="LineNr"> 15 </span> -<span id="L16" class="LineNr"> 16 </span><span class="subxFunction">string-equal?</span>: <span class="subxComment"># s : string, benchmark : string -> EAX : boolean</span> -<span id="L17" class="LineNr"> 17 </span> <span class="subxComment"># pseudocode:</span> -<span id="L18" class="LineNr"> 18 </span> <span class="subxComment"># if s->length != b->length return false</span> -<span id="L19" class="LineNr"> 19 </span> <span class="subxComment"># for i = 0; i < s->length; ++i</span> -<span id="L20" class="LineNr"> 20 </span> <span class="subxComment"># if s[i] != b[i] return false</span> -<span id="L21" class="LineNr"> 21 </span> <span class="subxComment"># return true</span> -<span id="L22" class="LineNr"> 22 </span> <span class="subxComment"># registers:</span> -<span id="L23" class="LineNr"> 23 </span> <span class="subxComment"># i: ECX</span> -<span id="L24" class="LineNr"> 24 </span> <span class="subxComment"># s->length: EDX</span> -<span id="L25" class="LineNr"> 25 </span> <span class="subxComment"># b->length: EBX</span> -<span id="L26" class="LineNr"> 26 </span> <span class="subxComment"># b[i]: EBX</span> -<span id="L27" class="LineNr"> 27 </span> <span class="subxComment"># s[i]: EAX</span> -<span id="L28" class="LineNr"> 28 </span> <span class="subxComment">#</span> -<span id="L29" class="LineNr"> 29 </span> <span class="subxS1Comment"># . prolog</span> -<span id="L30" class="LineNr"> 30 </span> 55/push-EBP -<span id="L31" class="LineNr"> 31 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ESP to EBP</span> -<span id="L32" class="LineNr"> 32 </span> <span class="subxS1Comment"># . save registers</span> -<span id="L33" class="LineNr"> 33 </span> 51/push-ECX -<span id="L34" class="LineNr"> 34 </span> 52/push-EDX -<span id="L35" class="LineNr"> 35 </span> 53/push-EBX -<span id="L36" class="LineNr"> 36 </span> 56/push-ESI -<span id="L37" class="LineNr"> 37 </span> <span class="subxComment"># var s/EAX : (address array byte)</span> -<span id="L38" class="LineNr"> 38 </span> 8b/copy 1/mod/*+disp8 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/EAX 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(EBP+8) to EAX</span> -<span id="L39" class="LineNr"> 39 </span> <span class="subxComment"># var benchmark/EBX : (address array byte)</span> -<span id="L40" class="LineNr"> 40 </span> 8b/copy 1/mod/*+disp8 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/EBX 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(EBP+12) to EBX</span> -<span id="L41" class="LineNr"> 41 </span> <span class="subxComment"># if s->length != b->length return false</span> -<span id="L42" class="LineNr"> 42 </span> <span class="subxComment"># EDX = s->length</span> -<span id="L43" class="LineNr"> 43 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/EDX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy *EAX to EDX</span> -<span id="L44" class="LineNr"> 44 </span> <span class="subxComment"># compare s->length and b->length</span> -<span id="L45" class="LineNr"> 45 </span> 39/compare 0/mod/indirect 3/rm32/EBX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/EDX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare *EBX with EDX</span> -<span id="L46" class="LineNr"> 46 </span> 75/jump-if-not-equal $string-equal?:false/disp8 -<span id="L47" class="LineNr"> 47 </span><span class="Constant">$string-equal?:lengths</span>: -<span id="L48" class="LineNr"> 48 </span> <span class="subxComment"># var i/ECX : int = 0</span> -<span id="L49" class="LineNr"> 49 </span> b9/copy-to-ECX 0/imm32 -<span id="L50" class="LineNr"> 50 </span> <span class="subxComment"># EBX = &b[i]</span> -<span id="L51" class="LineNr"> 51 </span> 43/inc-EBX -<span id="L52" class="LineNr"> 52 </span> <span class="subxComment"># EAX = &s[i]</span> -<span id="L53" class="LineNr"> 53 </span> 40/inc-EAX -<span id="L54" class="LineNr"> 54 </span><span class="Constant">$string-equal?:loop</span>: -<span id="L55" class="LineNr"> 55 </span> <span class="subxComment"># if i >= s->length return true</span> -<span id="L56" class="LineNr"> 56 </span> 39/compare 3/mod/direct 1/rm32/ECX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/EDX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare ECX with EDX</span> -<span id="L57" class="LineNr"> 57 </span> 7d/jump-if-greater-or-equal $string-equal?:true/disp8 -<span id="L58" class="LineNr"> 58 </span> <span class="subxComment"># if b[i] != s[i] return false</span> -<span id="L59" class="LineNr"> 59 </span> <span class="subxComment"># ESI = s[i]</span> -<span id="L60" class="LineNr"> 60 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy *EAX to ESI</span> -<span id="L61" class="LineNr"> 61 </span> <span class="subxComment"># compare b[i] with ESI</span> -<span id="L62" class="LineNr"> 62 </span> 39/compare 0/mod/indirect 3/rm32/EBX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare *EBX with ESI</span> -<span id="L63" class="LineNr"> 63 </span> 75/jump-if-not-equal $string-equal?:false/disp8 -<span id="L64" class="LineNr"> 64 </span> <span class="subxComment"># ++i</span> -<span id="L65" class="LineNr"> 65 </span> 41/inc-ECX -<span id="L66" class="LineNr"> 66 </span> 40/inc-EAX -<span id="L67" class="LineNr"> 67 </span> 43/inc-EBX -<span id="L68" class="LineNr"> 68 </span> <span class="subxComment"># loop</span> -<span id="L69" class="LineNr"> 69 </span> eb/jump $string-equal?:loop/disp8 -<span id="L70" class="LineNr"> 70 </span><span class="Constant">$string-equal?:true</span>: -<span id="L71" class="LineNr"> 71 </span> <span class="subxComment"># return true</span> -<span id="L72" class="LineNr"> 72 </span> b8/copy-to-EAX 1/imm32 -<span id="L73" class="LineNr"> 73 </span> eb/jump $string-equal?:end/disp8 -<span id="L74" class="LineNr"> 74 </span><span class="Constant">$string-equal?:false</span>: -<span id="L75" class="LineNr"> 75 </span> <span class="subxComment"># return false</span> -<span id="L76" class="LineNr"> 76 </span> b8/copy-to-EAX 0/imm32 -<span id="L77" class="LineNr"> 77 </span><span class="Constant">$string-equal?:end</span>: -<span id="L78" class="LineNr"> 78 </span> <span class="subxS1Comment"># . restore registers</span> -<span id="L79" class="LineNr"> 79 </span> 5e/pop-to-ESI -<span id="L80" class="LineNr"> 80 </span> 5b/pop-to-EBX -<span id="L81" class="LineNr"> 81 </span> 5a/pop-to-EDX -<span id="L82" class="LineNr"> 82 </span> 59/pop-to-ECX -<span id="L83" class="LineNr"> 83 </span> <span class="subxS1Comment"># . epilog</span> -<span id="L84" class="LineNr"> 84 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy EBP to ESP</span> -<span id="L85" class="LineNr"> 85 </span> 5d/pop-to-EBP -<span id="L86" class="LineNr"> 86 </span> c3/return -<span id="L87" class="LineNr"> 87 </span> -<span id="L88" class="LineNr"> 88 </span><span class="subxH1Comment"># - tests</span> -<span id="L89" class="LineNr"> 89 </span> -<span id="L90" class="LineNr"> 90 </span><span class="subxTest">test-compare-empty-with-empty-string</span>: -<span id="L91" class="LineNr"> 91 </span> <span class="subxComment"># EAX = string-equal?("", "")</span> -<span id="L92" class="LineNr"> 92 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L93" class="LineNr"> 93 </span> 68/push <span class="Constant">""</span>/imm32 -<span id="L94" class="LineNr"> 94 </span> 68/push <span class="Constant">""</span>/imm32 -<span id="L95" class="LineNr"> 95 </span> <span class="subxS2Comment"># . . call</span> -<span id="L96" class="LineNr"> 96 </span> e8/call <a href='054string-equal.subx.html#L16'>string-equal?</a>/disp32 -<span id="L97" class="LineNr"> 97 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L98" class="LineNr"> 98 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L99" class="LineNr"> 99 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> -<span id="L100" class="LineNr">100 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L101" class="LineNr">101 </span> 68/push <span class="Constant">"F - test-compare-empty-with-empty-string"</span>/imm32 -<span id="L102" class="LineNr">102 </span> 68/push 1/imm32/true -<span id="L103" class="LineNr">103 </span> 50/push-EAX -<span id="L104" class="LineNr">104 </span> <span class="subxS2Comment"># . . call</span> -<span id="L105" class="LineNr">105 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 -<span id="L106" class="LineNr">106 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L107" class="LineNr">107 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L108" class="LineNr">108 </span> c3/return -<span id="L109" class="LineNr">109 </span> -<span id="L110" class="LineNr">110 </span><span class="subxTest">test-compare-empty-with-non-empty-string</span>: <span class="subxComment"># also checks length-mismatch code path</span> -<span id="L111" class="LineNr">111 </span> <span class="subxComment"># EAX = string-equal?("", "Abc")</span> -<span id="L112" class="LineNr">112 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L113" class="LineNr">113 </span> 68/push <span class="Constant">"Abc"</span>/imm32 -<span id="L114" class="LineNr">114 </span> 68/push <span class="Constant">""</span>/imm32 -<span id="L115" class="LineNr">115 </span> <span class="subxS2Comment"># . . call</span> -<span id="L116" class="LineNr">116 </span> e8/call <a href='054string-equal.subx.html#L16'>string-equal?</a>/disp32 -<span id="L117" class="LineNr">117 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L118" class="LineNr">118 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L119" class="LineNr">119 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> -<span id="L120" class="LineNr">120 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L121" class="LineNr">121 </span> 68/push <span class="Constant">"F - test-compare-empty-with-non-empty-string"</span>/imm32 -<span id="L122" class="LineNr">122 </span> 68/push 0/imm32/false -<span id="L123" class="LineNr">123 </span> 50/push-EAX -<span id="L124" class="LineNr">124 </span> <span class="subxS2Comment"># . . call</span> -<span id="L125" class="LineNr">125 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 -<span id="L126" class="LineNr">126 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L127" class="LineNr">127 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L128" class="LineNr">128 </span> c3/return -<span id="L129" class="LineNr">129 </span> -<span id="L130" class="LineNr">130 </span><span class="subxTest">test-compare-equal-strings</span>: -<span id="L131" class="LineNr">131 </span> <span class="subxComment"># EAX = string-equal?("Abc", "Abc")</span> -<span id="L132" class="LineNr">132 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L133" class="LineNr">133 </span> 68/push <span class="Constant">"Abc"</span>/imm32 -<span id="L134" class="LineNr">134 </span> 68/push <span class="Constant">"Abc"</span>/imm32 -<span id="L135" class="LineNr">135 </span> <span class="subxS2Comment"># . . call</span> -<span id="L136" class="LineNr">136 </span> e8/call <a href='054string-equal.subx.html#L16'>string-equal?</a>/disp32 -<span id="L137" class="LineNr">137 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L138" class="LineNr">138 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L139" class="LineNr">139 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> -<span id="L140" class="LineNr">140 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L141" class="LineNr">141 </span> 68/push <span class="Constant">"F - test-compare-equal-strings"</span>/imm32 -<span id="L142" class="LineNr">142 </span> 68/push 1/imm32/true -<span id="L143" class="LineNr">143 </span> 50/push-EAX -<span id="L144" class="LineNr">144 </span> <span class="subxS2Comment"># . . call</span> -<span id="L145" class="LineNr">145 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 -<span id="L146" class="LineNr">146 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L147" class="LineNr">147 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L148" class="LineNr">148 </span> c3/return -<span id="L149" class="LineNr">149 </span> -<span id="L150" class="LineNr">150 </span><span class="subxTest">test-compare-inequal-strings-equal-lengths</span>: -<span id="L151" class="LineNr">151 </span> <span class="subxComment"># EAX = string-equal?("Abc", "Adc")</span> -<span id="L152" class="LineNr">152 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L153" class="LineNr">153 </span> 68/push <span class="Constant">"Adc"</span>/imm32 -<span id="L154" class="LineNr">154 </span> 68/push <span class="Constant">"Abc"</span>/imm32 -<span id="L155" class="LineNr">155 </span> <span class="subxS2Comment"># . . call</span> -<span id="L156" class="LineNr">156 </span> e8/call <a href='054string-equal.subx.html#L16'>string-equal?</a>/disp32 -<span id="L157" class="LineNr">157 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L158" class="LineNr">158 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> -<span id="L159" class="LineNr">159 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> -<span id="L160" class="LineNr">160 </span> <span class="subxS2Comment"># . . push args</span> -<span id="L161" class="LineNr">161 </span> 68/push <span class="Constant">"F - test-compare-inequal-strings-equal-lengths"</span>/imm32 -<span id="L162" class="LineNr">162 </span> 68/push 0/imm32/false -<span id="L163" class="LineNr">163 </span> 50/push-EAX -<span id="L164" class="LineNr">164 </span> <span class="subxS2Comment"># . . call</span> -<span id="L165" class="LineNr">165 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 -<span id="L166" class="LineNr">166 </span> <span class="subxS2Comment"># . . discard args</span> -<span id="L167" class="LineNr">167 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> -<span id="L168" class="LineNr">168 </span> c3/return -<span id="L169" class="LineNr">169 </span> -<span id="L170" class="LineNr">170 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> +<span id="L10" class="LineNr"> 10 </span><span class="CommentedCode">#? e8/call test-compare-equal-strings/disp32</span> +<span id="L11" class="LineNr"> 11 </span> e8/call run-tests/disp32 <span class="subxComment"># 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.</span> +<span id="L12" class="LineNr"> 12 </span> <span class="subxComment"># syscall(exit, Num-test-failures)</span> +<span id="L13" class="LineNr"> 13 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/EBX <span class="SpecialChar"><a href='051test.subx.html#L90'>Num-test-failures</a></span>/disp32 <span class="subxComment"># copy *Num-test-failures to EBX</span> +<span id="L14" class="LineNr"> 14 </span> b8/copy-to-EAX 1/imm32/exit +<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="subxFunction">string-equal?</span>: <span class="subxComment"># s : (address string), benchmark : (address string) -> EAX : boolean</span> +<span id="L18" class="LineNr"> 18 </span> <span class="subxComment"># pseudocode:</span> +<span id="L19" class="LineNr"> 19 </span> <span class="subxComment"># lens = s->length</span> +<span id="L20" class="LineNr"> 20 </span> <span class="subxComment"># if (lens != benchmark->length) return false</span> +<span id="L21" class="LineNr"> 21 </span> <span class="subxComment"># i = 0</span> +<span id="L22" class="LineNr"> 22 </span> <span class="subxComment"># currs = s->data</span> +<span id="L23" class="LineNr"> 23 </span> <span class="subxComment"># currb = benchmark->data</span> +<span id="L24" class="LineNr"> 24 </span> <span class="subxComment"># while (i < s->length)</span> +<span id="L25" class="LineNr"> 25 </span> <span class="subxComment"># c1 = *currs</span> +<span id="L26" class="LineNr"> 26 </span> <span class="subxComment"># c2 = *currb</span> +<span id="L27" class="LineNr"> 27 </span> <span class="subxComment"># if (c1 != c2) return false</span> +<span id="L28" class="LineNr"> 28 </span> <span class="subxComment"># ++i, ++currs, ++currb</span> +<span id="L29" class="LineNr"> 29 </span> <span class="subxComment"># return true</span> +<span id="L30" class="LineNr"> 30 </span> <span class="subxComment">#</span> +<span id="L31" class="LineNr"> 31 </span> <span class="subxComment"># registers:</span> +<span id="L32" class="LineNr"> 32 </span> <span class="subxComment"># i: ECX</span> +<span id="L33" class="LineNr"> 33 </span> <span class="subxComment"># lens: EDX</span> +<span id="L34" class="LineNr"> 34 </span> <span class="subxComment"># currs: ESI</span> +<span id="L35" class="LineNr"> 35 </span> <span class="subxComment"># currb: EDI</span> +<span id="L36" class="LineNr"> 36 </span> <span class="subxComment"># c1: EAX</span> +<span id="L37" class="LineNr"> 37 </span> <span class="subxComment"># c2: EBX</span> +<span id="L38" class="LineNr"> 38 </span> <span class="subxComment">#</span> +<span id="L39" class="LineNr"> 39 </span> <span class="subxS1Comment"># . prolog</span> +<span id="L40" class="LineNr"> 40 </span> 55/push-EBP +<span id="L41" class="LineNr"> 41 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/r32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy ESP to EBP</span> +<span id="L42" class="LineNr"> 42 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L43" class="LineNr"> 43 </span> 51/push-ECX +<span id="L44" class="LineNr"> 44 </span> 52/push-EDX +<span id="L45" class="LineNr"> 45 </span> 53/push-EBX +<span id="L46" class="LineNr"> 46 </span> 56/push-ESI +<span id="L47" class="LineNr"> 47 </span> 57/push-EDI +<span id="L48" class="LineNr"> 48 </span> <span class="subxComment"># ESI = s</span> +<span id="L49" class="LineNr"> 49 </span> 8b/copy 1/mod/*+disp8 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 6/r32/ESI 8/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(EBP+8) to ESI</span> +<span id="L50" class="LineNr"> 50 </span> <span class="subxComment"># EDI = benchmark</span> +<span id="L51" class="LineNr"> 51 </span> 8b/copy 1/mod/*+disp8 5/rm32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 7/r32/EDI 0xc/disp8 <span class="Normal"> . </span> <span class="subxComment"># copy *(EBP+12) to EDI</span> +<span id="L52" class="LineNr"> 52 </span> <span class="subxComment"># lens/EDX = s->length</span> +<span id="L53" class="LineNr"> 53 </span> 8b/copy 0/mod/indirect 6/rm32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/EDX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy *ESI to EDX</span> +<span id="L54" class="LineNr"> 54 </span><span class="Constant">$string-equal?:lengths</span>: +<span id="L55" class="LineNr"> 55 </span> <span class="subxComment"># if (lens != benchmark->length) return false</span> +<span id="L56" class="LineNr"> 56 </span> 39/compare 0/mod/indirect 7/rm32/EDI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/EDX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare *EDI with EDX</span> +<span id="L57" class="LineNr"> 57 </span> 75/jump-if-not-equal $string-equal?:false/disp8 +<span id="L58" class="LineNr"> 58 </span> <span class="subxComment"># currs/ESI = s->data</span> +<span id="L59" class="LineNr"> 59 </span> 81 0/subop/add 3/mod/direct 6/rm32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to ESI</span> +<span id="L60" class="LineNr"> 60 </span> <span class="subxComment"># currb/EDI = benchmark->data</span> +<span id="L61" class="LineNr"> 61 </span> 81 0/subop/add 3/mod/direct 7/rm32/EDI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 4/imm32 <span class="subxComment"># add to EDI</span> +<span id="L62" class="LineNr"> 62 </span> <span class="subxComment"># i/ECX = c1/EAX = c2/EBX = 0</span> +<span id="L63" class="LineNr"> 63 </span> 31/xor 3/mod/direct 1/rm32/ECX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 1/r32/ECX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># clear ECX</span> +<span id="L64" class="LineNr"> 64 </span> 31/xor 3/mod/direct 0/rm32/EAX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/EAX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># clear EAX</span> +<span id="L65" class="LineNr"> 65 </span> 31/xor 3/mod/direct 3/rm32/EBX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/EBX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># clear EBX</span> +<span id="L66" class="LineNr"> 66 </span><span class="Constant">$string-equal?:loop</span>: +<span id="L67" class="LineNr"> 67 </span> <span class="subxComment"># if (i >= lens) return true</span> +<span id="L68" class="LineNr"> 68 </span> 39/compare 3/mod/direct 1/rm32/ECX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 2/r32/EDX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare ECX with EDX</span> +<span id="L69" class="LineNr"> 69 </span> 7d/jump-if-greater-or-equal $string-equal?:true/disp8 +<span id="L70" class="LineNr"> 70 </span> <span class="subxComment"># c1 = *currs</span> +<span id="L71" class="LineNr"> 71 </span> 8a/copy-byte 0/mod/indirect 6/rm32/ESI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0/r32/AL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at *ESI to AL</span> +<span id="L72" class="LineNr"> 72 </span> <span class="subxComment"># c2 = *currb</span> +<span id="L73" class="LineNr"> 73 </span> 8a/copy-byte 0/mod/indirect 7/rm32/EDI <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/BL <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy byte at *EDI to BL</span> +<span id="L74" class="LineNr"> 74 </span> <span class="subxComment"># if (c1 != c2) return false</span> +<span id="L75" class="LineNr"> 75 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 3/r32/EBX <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># compare EAX with EBX</span> +<span id="L76" class="LineNr"> 76 </span> 75/jump-if-not-equal $string-equal?:false/disp8 +<span id="L77" class="LineNr"> 77 </span> <span class="subxComment"># ++i</span> +<span id="L78" class="LineNr"> 78 </span> 41/inc-ECX +<span id="L79" class="LineNr"> 79 </span> <span class="subxComment"># ++currs</span> +<span id="L80" class="LineNr"> 80 </span> 46/inc-ESI +<span id="L81" class="LineNr"> 81 </span> <span class="subxComment"># ++currb</span> +<span id="L82" class="LineNr"> 82 </span> 47/inc-EDI +<span id="L83" class="LineNr"> 83 </span> eb/jump $string-equal?:loop/disp8 +<span id="L84" class="LineNr"> 84 </span><span class="Constant">$string-equal?:true</span>: +<span id="L85" class="LineNr"> 85 </span> b8/copy-to-EAX 1/imm32 +<span id="L86" class="LineNr"> 86 </span> eb/jump $string-equal?:end/disp8 +<span id="L87" class="LineNr"> 87 </span><span class="Constant">$string-equal?:false</span>: +<span id="L88" class="LineNr"> 88 </span> b8/copy-to-EAX 0/imm32 +<span id="L89" class="LineNr"> 89 </span><span class="Constant">$string-equal?:end</span>: +<span id="L90" class="LineNr"> 90 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L91" class="LineNr"> 91 </span> 5f/pop-to-EDI +<span id="L92" class="LineNr"> 92 </span> 5e/pop-to-ESI +<span id="L93" class="LineNr"> 93 </span> 5b/pop-to-EBX +<span id="L94" class="LineNr"> 94 </span> 5a/pop-to-EDX +<span id="L95" class="LineNr"> 95 </span> 59/pop-to-ECX +<span id="L96" class="LineNr"> 96 </span> <span class="subxS1Comment"># . epilog</span> +<span id="L97" class="LineNr"> 97 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 5/r32/EBP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="subxComment"># copy EBP to ESP</span> +<span id="L98" class="LineNr"> 98 </span> 5d/pop-to-EBP +<span id="L99" class="LineNr"> 99 </span> c3/return +<span id="L100" class="LineNr">100 </span> +<span id="L101" class="LineNr">101 </span><span class="subxH1Comment"># - tests</span> +<span id="L102" class="LineNr">102 </span> +<span id="L103" class="LineNr">103 </span><span class="subxTest">test-compare-empty-with-empty-string</span>: +<span id="L104" class="LineNr">104 </span> <span class="subxComment"># EAX = string-equal?("", "")</span> +<span id="L105" class="LineNr">105 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L106" class="LineNr">106 </span> 68/push <span class="Constant">""</span>/imm32 +<span id="L107" class="LineNr">107 </span> 68/push <span class="Constant">""</span>/imm32 +<span id="L108" class="LineNr">108 </span> <span class="subxS2Comment"># . . call</span> +<span id="L109" class="LineNr">109 </span> e8/call <a href='054string-equal.subx.html#L17'>string-equal?</a>/disp32 +<span id="L110" class="LineNr">110 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L111" class="LineNr">111 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L112" class="LineNr">112 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> +<span id="L113" class="LineNr">113 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L114" class="LineNr">114 </span> 68/push <span class="Constant">"F - test-compare-empty-with-empty-string"</span>/imm32 +<span id="L115" class="LineNr">115 </span> 68/push 1/imm32/true +<span id="L116" class="LineNr">116 </span> 50/push-EAX +<span id="L117" class="LineNr">117 </span> <span class="subxS2Comment"># . . call</span> +<span id="L118" class="LineNr">118 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 +<span id="L119" class="LineNr">119 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L120" class="LineNr">120 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L121" class="LineNr">121 </span> c3/return +<span id="L122" class="LineNr">122 </span> +<span id="L123" class="LineNr">123 </span><span class="subxTest">test-compare-empty-with-non-empty-string</span>: <span class="subxComment"># also checks length-mismatch code path</span> +<span id="L124" class="LineNr">124 </span> <span class="subxComment"># EAX = string-equal?("", "Abc")</span> +<span id="L125" class="LineNr">125 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L126" class="LineNr">126 </span> 68/push <span class="Constant">"Abc"</span>/imm32 +<span id="L127" class="LineNr">127 </span> 68/push <span class="Constant">""</span>/imm32 +<span id="L128" class="LineNr">128 </span> <span class="subxS2Comment"># . . call</span> +<span id="L129" class="LineNr">129 </span> e8/call <a href='054string-equal.subx.html#L17'>string-equal?</a>/disp32 +<span id="L130" class="LineNr">130 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L131" class="LineNr">131 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L132" class="LineNr">132 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> +<span id="L133" class="LineNr">133 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L134" class="LineNr">134 </span> 68/push <span class="Constant">"F - test-compare-empty-with-non-empty-string"</span>/imm32 +<span id="L135" class="LineNr">135 </span> 68/push 0/imm32/false +<span id="L136" class="LineNr">136 </span> 50/push-EAX +<span id="L137" class="LineNr">137 </span> <span class="subxS2Comment"># . . call</span> +<span id="L138" class="LineNr">138 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 +<span id="L139" class="LineNr">139 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L140" class="LineNr">140 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L141" class="LineNr">141 </span> c3/return +<span id="L142" class="LineNr">142 </span> +<span id="L143" class="LineNr">143 </span><span class="subxTest">test-compare-equal-strings</span>: +<span id="L144" class="LineNr">144 </span> <span class="subxComment"># EAX = string-equal?("Abc", "Abc")</span> +<span id="L145" class="LineNr">145 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L146" class="LineNr">146 </span> 68/push <span class="Constant">"Abc"</span>/imm32 +<span id="L147" class="LineNr">147 </span> 68/push <span class="Constant">"Abc"</span>/imm32 +<span id="L148" class="LineNr">148 </span> <span class="subxS2Comment"># . . call</span> +<span id="L149" class="LineNr">149 </span> e8/call <a href='054string-equal.subx.html#L17'>string-equal?</a>/disp32 +<span id="L150" class="LineNr">150 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L151" class="LineNr">151 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L152" class="LineNr">152 </span> <span class="subxComment"># check-ints-equal(EAX, 1, msg)</span> +<span id="L153" class="LineNr">153 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L154" class="LineNr">154 </span> 68/push <span class="Constant">"F - test-compare-equal-strings"</span>/imm32 +<span id="L155" class="LineNr">155 </span> 68/push 1/imm32/true +<span id="L156" class="LineNr">156 </span> 50/push-EAX +<span id="L157" class="LineNr">157 </span> <span class="subxS2Comment"># . . call</span> +<span id="L158" class="LineNr">158 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 +<span id="L159" class="LineNr">159 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L160" class="LineNr">160 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L161" class="LineNr">161 </span> c3/return +<span id="L162" class="LineNr">162 </span> +<span id="L163" class="LineNr">163 </span><span class="subxTest">test-compare-inequal-strings-equal-lengths</span>: +<span id="L164" class="LineNr">164 </span> <span class="subxComment"># EAX = string-equal?("Abc", "Adc")</span> +<span id="L165" class="LineNr">165 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L166" class="LineNr">166 </span> 68/push <span class="Constant">"Adc"</span>/imm32 +<span id="L167" class="LineNr">167 </span> 68/push <span class="Constant">"Abc"</span>/imm32 +<span id="L168" class="LineNr">168 </span> <span class="subxS2Comment"># . . call</span> +<span id="L169" class="LineNr">169 </span> e8/call <a href='054string-equal.subx.html#L17'>string-equal?</a>/disp32 +<span id="L170" class="LineNr">170 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L171" class="LineNr">171 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 8/imm32 <span class="subxComment"># add to ESP</span> +<span id="L172" class="LineNr">172 </span> <span class="subxComment"># check-ints-equal(EAX, 0, msg)</span> +<span id="L173" class="LineNr">173 </span> <span class="subxS2Comment"># . . push args</span> +<span id="L174" class="LineNr">174 </span> 68/push <span class="Constant">"F - test-compare-inequal-strings-equal-lengths"</span>/imm32 +<span id="L175" class="LineNr">175 </span> 68/push 0/imm32/false +<span id="L176" class="LineNr">176 </span> 50/push-EAX +<span id="L177" class="LineNr">177 </span> <span class="subxS2Comment"># . . call</span> +<span id="L178" class="LineNr">178 </span> e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 +<span id="L179" class="LineNr">179 </span> <span class="subxS2Comment"># . . discard args</span> +<span id="L180" class="LineNr">180 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> <span class="Normal"> . </span> 0xc/imm32 <span class="subxComment"># add to ESP</span> +<span id="L181" class="LineNr">181 </span> c3/return +<span id="L182" class="LineNr">182 </span> +<span id="L183" class="LineNr">183 </span><span class="subxS2Comment"># . . vim:nowrap:textwidth=0</span> </pre> </body> </html> |