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| author | Kartik Agaram <vc@akkartik.com> | 2021-01-23 11:14:07 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2021-01-23 11:14:07 -0800 |
| commit | 4254408a385f90ffe212e85a7b405054f4e73f5e (patch) | |
| tree | 87357dacdf7a4043633a68da39dc5022d1fae596 /html/baremetal/311decimal-int.subx.html | |
| parent | 63be7b7d0d5bb6e728d9afbb68e238fcd3bda3a7 (diff) | |
| download | mu-4254408a385f90ffe212e85a7b405054f4e73f5e.tar.gz | |
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| -rw-r--r-- | html/baremetal/311decimal-int.subx.html | 488 |
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diff --git a/html/baremetal/311decimal-int.subx.html b/html/baremetal/311decimal-int.subx.html new file mode 100644 index 00000000..86304b6b --- /dev/null +++ b/html/baremetal/311decimal-int.subx.html @@ -0,0 +1,488 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<meta http-equiv="content-type" content="text/html; charset=UTF-8"> +<title>Mu - baremetal/311decimal-int.subx</title> +<meta name="Generator" content="Vim/8.1"> +<meta name="plugin-version" content="vim8.1_v1"> +<meta name="syntax" content="none"> +<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> +<meta name="colorscheme" content="minimal-light"> +<style type="text/css"> +<!-- +pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } +body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } +a { color:inherit; } +* { font-size:12pt; font-size: 1em; } +.subxComment { color: #005faf; } +.subxS1Comment { color: #0000af; } +.LineNr { } +.subxTest { color: #5f8700; } +.subxFunction { color: #af5f00; text-decoration: underline; } +.Constant { color: #008787; } +--> +</style> + +<script type='text/javascript'> +<!-- + +/* function to open any folds containing a jumped-to line before jumping to it */ +function JumpToLine() +{ + var lineNum; + lineNum = window.location.hash; + lineNum = lineNum.substr(1); /* strip off '#' */ + + if (lineNum.indexOf('L') == -1) { + lineNum = 'L'+lineNum; + } + var lineElem = document.getElementById(lineNum); + /* Always jump to new location even if the line was hidden inside a fold, or + * we corrected the raw number to a line ID. + */ + if (lineElem) { + lineElem.scrollIntoView(true); + } + return true; +} +if ('onhashchange' in window) { + window.onhashchange = JumpToLine; +} + +--> +</script> +</head> +<body onload='JumpToLine();'> +<a href='https://github.com/akkartik/mu/blob/main/baremetal/311decimal-int.subx'>https://github.com/akkartik/mu/blob/main/baremetal/311decimal-int.subx</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="subxComment"># Helpers for decimal ints.</span> +<span id="L2" class="LineNr"> 2 </span> +<span id="L3" class="LineNr"> 3 </span><span class="subxComment"># if slice doesn't contain a decimal number, return 0</span> +<span id="L4" class="LineNr"> 4 </span><span class="subxFunction">parse-decimal-int-from-slice</span>: <span class="subxComment"># in: (addr slice) -> out/eax: int</span> +<span id="L5" class="LineNr"> 5 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L6" class="LineNr"> 6 </span> 55/push-ebp +<span id="L7" class="LineNr"> 7 </span> 89/<- %ebp 4/r32/esp +<span id="L8" class="LineNr"> 8 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L9" class="LineNr"> 9 </span> 51/push-ecx +<span id="L10" class="LineNr"> 10 </span> <span class="subxComment"># ecx = in</span> +<span id="L11" class="LineNr"> 11 </span> 8b/-> *(ebp+8) 1/r32/ecx +<span id="L12" class="LineNr"> 12 </span> <span class="subxComment">#</span> +<span id="L13" class="LineNr"> 13 </span> (<a href='311decimal-int.subx.html#L86'>parse-decimal-int-helper</a> *ecx *(ecx+4)) <span class="subxComment"># => eax</span> +<span id="L14" class="LineNr"> 14 </span><span class="Constant">$parse-decimal-int-from-slice:end</span>: +<span id="L15" class="LineNr"> 15 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L16" class="LineNr"> 16 </span> 59/pop-to-ecx +<span id="L17" class="LineNr"> 17 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L18" class="LineNr"> 18 </span> 89/<- %esp 5/r32/ebp +<span id="L19" class="LineNr"> 19 </span> 5d/pop-to-ebp +<span id="L20" class="LineNr"> 20 </span> c3/return +<span id="L21" class="LineNr"> 21 </span> +<span id="L22" class="LineNr"> 22 </span><span class="subxComment"># if slice doesn't contain a decimal number, return 0</span> +<span id="L23" class="LineNr"> 23 </span><span class="subxFunction">parse-decimal-int</span>: <span class="subxComment"># in: (addr array byte) -> result/eax: int</span> +<span id="L24" class="LineNr"> 24 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L25" class="LineNr"> 25 </span> 55/push-ebp +<span id="L26" class="LineNr"> 26 </span> 89/<- %ebp 4/r32/esp +<span id="L27" class="LineNr"> 27 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L28" class="LineNr"> 28 </span> 51/push-ecx +<span id="L29" class="LineNr"> 29 </span> 52/push-edx +<span id="L30" class="LineNr"> 30 </span> <span class="subxComment"># eax = in</span> +<span id="L31" class="LineNr"> 31 </span> 8b/-> *(ebp+8) 0/r32/eax +<span id="L32" class="LineNr"> 32 </span> <span class="subxComment"># var start/ecx: (addr byte) = &in->data</span> +<span id="L33" class="LineNr"> 33 </span> 8d/copy-address *(eax+4) 1/r32/ecx +<span id="L34" class="LineNr"> 34 </span> <span class="subxComment"># var end/edx: (addr byte) = &in->data[in->size]</span> +<span id="L35" class="LineNr"> 35 </span> 8b/-> *eax 2/r32/edx +<span id="L36" class="LineNr"> 36 </span> 8d/copy-address *(eax+edx+4) 2/r32/edx +<span id="L37" class="LineNr"> 37 </span> <span class="subxComment">#</span> +<span id="L38" class="LineNr"> 38 </span> (<a href='311decimal-int.subx.html#L86'>parse-decimal-int-helper</a> %ecx %edx) <span class="subxComment"># => eax</span> +<span id="L39" class="LineNr"> 39 </span><span class="Constant">$parse-decimal-int:end</span>: +<span id="L40" class="LineNr"> 40 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L41" class="LineNr"> 41 </span> 5a/pop-to-edx +<span id="L42" class="LineNr"> 42 </span> 59/pop-to-ecx +<span id="L43" class="LineNr"> 43 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L44" class="LineNr"> 44 </span> 89/<- %esp 5/r32/ebp +<span id="L45" class="LineNr"> 45 </span> 5d/pop-to-ebp +<span id="L46" class="LineNr"> 46 </span> c3/return +<span id="L47" class="LineNr"> 47 </span> +<span id="L48" class="LineNr"> 48 </span><span class="subxFunction">parse-decimal-int-from-stream</span>: <span class="subxComment"># in: (addr stream byte) -> result/eax: int</span> +<span id="L49" class="LineNr"> 49 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L50" class="LineNr"> 50 </span> 55/push-ebp +<span id="L51" class="LineNr"> 51 </span> 89/<- %ebp 4/r32/esp +<span id="L52" class="LineNr"> 52 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L53" class="LineNr"> 53 </span> 51/push-ecx +<span id="L54" class="LineNr"> 54 </span> 52/push-edx +<span id="L55" class="LineNr"> 55 </span> <span class="subxComment"># eax = in</span> +<span id="L56" class="LineNr"> 56 </span> 8b/-> *(ebp+8) 0/r32/eax +<span id="L57" class="LineNr"> 57 </span> <span class="subxComment"># var start/ecx: (addr byte) = &in->data[in->read]</span> +<span id="L58" class="LineNr"> 58 </span> 8b/-> *(eax+4) 1/r32/ecx +<span id="L59" class="LineNr"> 59 </span> 8d/copy-address *(eax+ecx+0xc) 1/r32/ecx +<span id="L60" class="LineNr"> 60 </span> <span class="subxComment"># var end/edx: (addr byte) = &in->data[in->write]</span> +<span id="L61" class="LineNr"> 61 </span> 8b/-> *eax 2/r32/edx +<span id="L62" class="LineNr"> 62 </span> 8d/copy-address *(eax+edx+0xc) 2/r32/edx +<span id="L63" class="LineNr"> 63 </span> <span class="subxComment"># trim a trailing newline</span> +<span id="L64" class="LineNr"> 64 </span> { +<span id="L65" class="LineNr"> 65 </span> <span class="subxComment"># speculatively trim</span> +<span id="L66" class="LineNr"> 66 </span> 4a/decrement-edx +<span id="L67" class="LineNr"> 67 </span> <span class="subxComment"># if it's a newline, break</span> +<span id="L68" class="LineNr"> 68 </span> 8a/byte-> *edx 0/r32/eax +<span id="L69" class="LineNr"> 69 </span> 81 4/subop/and %eax 0xff/imm32 +<span id="L70" class="LineNr"> 70 </span> 3d/compare-eax-and 0xa/imm32/newline +<span id="L71" class="LineNr"> 71 </span> 74/jump-if-= <span class="Constant">break</span>/disp8 +<span id="L72" class="LineNr"> 72 </span> <span class="subxComment"># not a newline, so restore it</span> +<span id="L73" class="LineNr"> 73 </span> 42/increment-edx +<span id="L74" class="LineNr"> 74 </span> } +<span id="L75" class="LineNr"> 75 </span> <span class="subxComment">#</span> +<span id="L76" class="LineNr"> 76 </span> (<a href='311decimal-int.subx.html#L86'>parse-decimal-int-helper</a> %ecx %edx) <span class="subxComment"># => eax</span> +<span id="L77" class="LineNr"> 77 </span><span class="Constant">$parse-decimal-int-from-stream:end</span>: +<span id="L78" class="LineNr"> 78 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L79" class="LineNr"> 79 </span> 5a/pop-to-edx +<span id="L80" class="LineNr"> 80 </span> 59/pop-to-ecx +<span id="L81" class="LineNr"> 81 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L82" class="LineNr"> 82 </span> 89/<- %esp 5/r32/ebp +<span id="L83" class="LineNr"> 83 </span> 5d/pop-to-ebp +<span id="L84" class="LineNr"> 84 </span> c3/return +<span id="L85" class="LineNr"> 85 </span> +<span id="L86" class="LineNr"> 86 </span><span class="subxFunction">parse-decimal-int-helper</span>: <span class="subxComment"># start: (addr byte), end: (addr byte) -> result/eax: int</span> +<span id="L87" class="LineNr"> 87 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L88" class="LineNr"> 88 </span> 55/push-ebp +<span id="L89" class="LineNr"> 89 </span> 89/<- %ebp 4/r32/esp +<span id="L90" class="LineNr"> 90 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L91" class="LineNr"> 91 </span> 51/push-ecx +<span id="L92" class="LineNr"> 92 </span> 52/push-edx +<span id="L93" class="LineNr"> 93 </span> 53/push-ebx +<span id="L94" class="LineNr"> 94 </span> 56/push-esi +<span id="L95" class="LineNr"> 95 </span> 57/push-edi +<span id="L96" class="LineNr"> 96 </span> <span class="subxComment"># var curr/esi: (addr byte) = start</span> +<span id="L97" class="LineNr"> 97 </span> 8b/-> *(ebp+8) 6/r32/esi +<span id="L98" class="LineNr"> 98 </span> <span class="subxComment"># edi = end</span> +<span id="L99" class="LineNr"> 99 </span> 8b/-> *(ebp+0xc) 7/r32/edi +<span id="L100" class="LineNr">100 </span> <span class="subxComment"># var negate?/edx: boolean = false</span> +<span id="L101" class="LineNr">101 </span> ba/copy-to-edx 0/imm32/false +<span id="L102" class="LineNr">102 </span> <span class="subxComment"># if (*curr == '-') ++curr, negate = true</span> +<span id="L103" class="LineNr">103 </span> { +<span id="L104" class="LineNr">104 </span><span class="Constant">$parse-decimal-int-helper:negative</span>: +<span id="L105" class="LineNr">105 </span> b8/copy-to-eax 0/imm32 +<span id="L106" class="LineNr">106 </span> 8a/copy-byte *esi 0/r32/AL +<span id="L107" class="LineNr">107 </span> 3d/compare-eax-and 0x2d/imm32/- +<span id="L108" class="LineNr">108 </span> 75/jump-if-!= <span class="Constant">break</span>/disp8 +<span id="L109" class="LineNr">109 </span> <span class="subxS1Comment"># . ++curr</span> +<span id="L110" class="LineNr">110 </span> 46/increment-esi +<span id="L111" class="LineNr">111 </span> <span class="subxS1Comment"># . negate = true</span> +<span id="L112" class="LineNr">112 </span> ba/copy-to-edx 1/imm32/true +<span id="L113" class="LineNr">113 </span> } +<span id="L114" class="LineNr">114 </span> <span class="subxComment"># spill negate?</span> +<span id="L115" class="LineNr">115 </span> 52/push-edx +<span id="L116" class="LineNr">116 </span> <span class="subxComment"># var result/eax: int = 0</span> +<span id="L117" class="LineNr">117 </span> b8/copy-to-eax 0/imm32 +<span id="L118" class="LineNr">118 </span> <span class="subxComment"># var digit/ecx: int = 0</span> +<span id="L119" class="LineNr">119 </span> b9/copy-to-ecx 0/imm32 +<span id="L120" class="LineNr">120 </span> <span class="subxComment"># const TEN/ebx: int = 10</span> +<span id="L121" class="LineNr">121 </span> bb/copy-to-ebx 0xa/imm32 +<span id="L122" class="LineNr">122 </span> { +<span id="L123" class="LineNr">123 </span><span class="Constant">$parse-decimal-int-helper:loop</span>: +<span id="L124" class="LineNr">124 </span> <span class="subxComment"># if (curr >= in->end) break</span> +<span id="L125" class="LineNr">125 </span> 39/compare %esi 7/r32/edi +<span id="L126" class="LineNr">126 </span> 73/jump-if-addr>= <span class="Constant">break</span>/disp8 +<span id="L127" class="LineNr">127 </span> <span class="subxComment"># if !is-decimal-digit?(*curr) return 0</span> +<span id="L128" class="LineNr">128 </span> 8a/copy-byte *esi 1/r32/CL +<span id="L129" class="LineNr">129 </span> 50/push-eax +<span id="L130" class="LineNr">130 </span> (<a href='126write-int-decimal.subx.html#L299'>is-decimal-digit?</a> %ecx) <span class="subxComment"># => eax</span> +<span id="L131" class="LineNr">131 </span> { +<span id="L132" class="LineNr">132 </span> 3d/compare-eax-and 0/imm32/false +<span id="L133" class="LineNr">133 </span> 75/jump-if-!= <span class="Constant">break</span>/disp8 +<span id="L134" class="LineNr">134 </span> 58/pop-to-eax +<span id="L135" class="LineNr">135 </span> b8/copy-to-eax 0/imm32 +<span id="L136" class="LineNr">136 </span> eb/jump $parse-decimal-int-helper:negate/disp8 +<span id="L137" class="LineNr">137 </span> } +<span id="L138" class="LineNr">138 </span> 58/pop-to-eax +<span id="L139" class="LineNr">139 </span> <span class="subxComment"># digit = from-decimal-char(*curr)</span> +<span id="L140" class="LineNr">140 </span> 81 5/subop/subtract %ecx 0x30/imm32/zero +<span id="L141" class="LineNr">141 </span> <span class="subxComment"># TODO: error checking</span> +<span id="L142" class="LineNr">142 </span> <span class="subxComment"># result = result * 10 + digit</span> +<span id="L143" class="LineNr">143 </span> ba/copy-to-edx 0/imm32 +<span id="L144" class="LineNr">144 </span> f7 4/subop/multiply-into-edx-eax %ebx +<span id="L145" class="LineNr">145 </span> <span class="subxComment"># TODO: check edx for overflow</span> +<span id="L146" class="LineNr">146 </span> 01/add %eax 1/r32/ecx +<span id="L147" class="LineNr">147 </span> <span class="subxComment"># ++curr</span> +<span id="L148" class="LineNr">148 </span> 46/increment-esi +<span id="L149" class="LineNr">149 </span> <span class="subxComment">#</span> +<span id="L150" class="LineNr">150 </span> eb/jump <span class="Constant">loop</span>/disp8 +<span id="L151" class="LineNr">151 </span> } +<span id="L152" class="LineNr">152 </span><span class="Constant">$parse-decimal-int-helper:negate</span>: +<span id="L153" class="LineNr">153 </span> <span class="subxComment"># if (negate?) result = -result</span> +<span id="L154" class="LineNr">154 </span> 5a/pop-to-edx +<span id="L155" class="LineNr">155 </span> { +<span id="L156" class="LineNr">156 </span> 81 7/subop/compare %edx 0/imm32/false +<span id="L157" class="LineNr">157 </span> 74/jump-if-= <span class="Constant">break</span>/disp8 +<span id="L158" class="LineNr">158 </span> f7 3/subop/negate %eax +<span id="L159" class="LineNr">159 </span> } +<span id="L160" class="LineNr">160 </span><span class="Constant">$parse-decimal-int-helper:end</span>: +<span id="L161" class="LineNr">161 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L162" class="LineNr">162 </span> 5f/pop-to-edi +<span id="L163" class="LineNr">163 </span> 5e/pop-to-esi +<span id="L164" class="LineNr">164 </span> 5b/pop-to-ebx +<span id="L165" class="LineNr">165 </span> 5a/pop-to-edx +<span id="L166" class="LineNr">166 </span> 59/pop-to-ecx +<span id="L167" class="LineNr">167 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L168" class="LineNr">168 </span> 89/<- %esp 5/r32/ebp +<span id="L169" class="LineNr">169 </span> 5d/pop-to-ebp +<span id="L170" class="LineNr">170 </span> c3/return +<span id="L171" class="LineNr">171 </span> +<span id="L172" class="LineNr">172 </span><span class="subxTest">test-parse-decimal-int-from-slice-single-digit</span>: +<span id="L173" class="LineNr">173 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L174" class="LineNr">174 </span> 55/push-ebp +<span id="L175" class="LineNr">175 </span> 89/<- %ebp 4/r32/esp +<span id="L176" class="LineNr">176 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L177" class="LineNr">177 </span> 50/push-eax +<span id="L178" class="LineNr">178 </span> 51/push-ecx +<span id="L179" class="LineNr">179 </span> <span class="subxComment"># (eax..ecx) = "3"</span> +<span id="L180" class="LineNr">180 </span> b8/copy-to-eax <span class="Constant">"3"</span>/imm32 +<span id="L181" class="LineNr">181 </span> 8b/-> *eax 1/r32/ecx +<span id="L182" class="LineNr">182 </span> 8d/copy-address *(eax+ecx+4) 1/r32/ecx +<span id="L183" class="LineNr">183 </span> 05/add-to-eax 4/imm32 +<span id="L184" class="LineNr">184 </span> <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span> +<span id="L185" class="LineNr">185 </span> 51/push-ecx +<span id="L186" class="LineNr">186 </span> 50/push-eax +<span id="L187" class="LineNr">187 </span> 89/<- %ecx 4/r32/esp +<span id="L188" class="LineNr">188 </span> <span class="subxComment">#</span> +<span id="L189" class="LineNr">189 </span> (<a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> %ecx) <span class="subxComment"># => eax</span> +<span id="L190" class="LineNr">190 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 3 <span class="Constant">"F - test-parse-decimal-int-from-slice-single-digit"</span>) +<span id="L191" class="LineNr">191 </span><span class="Constant">$test-parse-decimal-int-helper-single-digit:end</span>: +<span id="L192" class="LineNr">192 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L193" class="LineNr">193 </span> 59/pop-to-ecx +<span id="L194" class="LineNr">194 </span> 58/pop-to-eax +<span id="L195" class="LineNr">195 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L196" class="LineNr">196 </span> 89/<- %esp 5/r32/ebp +<span id="L197" class="LineNr">197 </span> 5d/pop-to-ebp +<span id="L198" class="LineNr">198 </span> c3/return +<span id="L199" class="LineNr">199 </span> +<span id="L200" class="LineNr">200 </span><span class="subxTest">test-parse-decimal-int-from-slice-multi-digit</span>: +<span id="L201" class="LineNr">201 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L202" class="LineNr">202 </span> 55/push-ebp +<span id="L203" class="LineNr">203 </span> 89/<- %ebp 4/r32/esp +<span id="L204" class="LineNr">204 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L205" class="LineNr">205 </span> 50/push-eax +<span id="L206" class="LineNr">206 </span> 51/push-ecx +<span id="L207" class="LineNr">207 </span> <span class="subxComment"># (eax..ecx) = "34"</span> +<span id="L208" class="LineNr">208 </span> b8/copy-to-eax <span class="Constant">"34"</span>/imm32 +<span id="L209" class="LineNr">209 </span> 8b/-> *eax 1/r32/ecx +<span id="L210" class="LineNr">210 </span> 8d/copy-address *(eax+ecx+4) 1/r32/ecx +<span id="L211" class="LineNr">211 </span> 05/add-to-eax 4/imm32 +<span id="L212" class="LineNr">212 </span> <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span> +<span id="L213" class="LineNr">213 </span> 51/push-ecx +<span id="L214" class="LineNr">214 </span> 50/push-eax +<span id="L215" class="LineNr">215 </span> 89/<- %ecx 4/r32/esp +<span id="L216" class="LineNr">216 </span> <span class="subxComment">#</span> +<span id="L217" class="LineNr">217 </span> (<a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> %ecx) <span class="subxComment"># => eax</span> +<span id="L218" class="LineNr">218 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 0x22 <span class="Constant">"F - test-parse-decimal-int-from-slice-multi-digit"</span>) <span class="subxComment"># 34 in hex</span> +<span id="L219" class="LineNr">219 </span><span class="Constant">$test-parse-decimal-int-helper-multi-digit:end</span>: +<span id="L220" class="LineNr">220 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L221" class="LineNr">221 </span> 59/pop-to-ecx +<span id="L222" class="LineNr">222 </span> 58/pop-to-eax +<span id="L223" class="LineNr">223 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L224" class="LineNr">224 </span> 89/<- %esp 5/r32/ebp +<span id="L225" class="LineNr">225 </span> 5d/pop-to-ebp +<span id="L226" class="LineNr">226 </span> c3/return +<span id="L227" class="LineNr">227 </span> +<span id="L228" class="LineNr">228 </span><span class="subxTest">test-parse-decimal-int-from-slice-zero</span>: +<span id="L229" class="LineNr">229 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L230" class="LineNr">230 </span> 55/push-ebp +<span id="L231" class="LineNr">231 </span> 89/<- %ebp 4/r32/esp +<span id="L232" class="LineNr">232 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L233" class="LineNr">233 </span> 50/push-eax +<span id="L234" class="LineNr">234 </span> 51/push-ecx +<span id="L235" class="LineNr">235 </span> <span class="subxComment"># (eax..ecx) = "00"</span> +<span id="L236" class="LineNr">236 </span> b8/copy-to-eax <span class="Constant">"00"</span>/imm32 +<span id="L237" class="LineNr">237 </span> 8b/-> *eax 1/r32/ecx +<span id="L238" class="LineNr">238 </span> 8d/copy-address *(eax+ecx+4) 1/r32/ecx +<span id="L239" class="LineNr">239 </span> 05/add-to-eax 4/imm32 +<span id="L240" class="LineNr">240 </span> <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span> +<span id="L241" class="LineNr">241 </span> 51/push-ecx +<span id="L242" class="LineNr">242 </span> 50/push-eax +<span id="L243" class="LineNr">243 </span> 89/<- %ecx 4/r32/esp +<span id="L244" class="LineNr">244 </span> <span class="subxComment">#</span> +<span id="L245" class="LineNr">245 </span> (<a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> %ecx) <span class="subxComment"># => eax</span> +<span id="L246" class="LineNr">246 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 0 <span class="Constant">"F - test-parse-decimal-int-from-slice-zero"</span>) +<span id="L247" class="LineNr">247 </span><span class="Constant">$test-parse-decimal-int-helper-zero:end</span>: +<span id="L248" class="LineNr">248 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L249" class="LineNr">249 </span> 59/pop-to-ecx +<span id="L250" class="LineNr">250 </span> 58/pop-to-eax +<span id="L251" class="LineNr">251 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L252" class="LineNr">252 </span> 89/<- %esp 5/r32/ebp +<span id="L253" class="LineNr">253 </span> 5d/pop-to-ebp +<span id="L254" class="LineNr">254 </span> c3/return +<span id="L255" class="LineNr">255 </span> +<span id="L256" class="LineNr">256 </span><span class="subxTest">test-parse-decimal-int-from-slice-negative</span>: +<span id="L257" class="LineNr">257 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L258" class="LineNr">258 </span> 55/push-ebp +<span id="L259" class="LineNr">259 </span> 89/<- %ebp 4/r32/esp +<span id="L260" class="LineNr">260 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L261" class="LineNr">261 </span> 50/push-eax +<span id="L262" class="LineNr">262 </span> 51/push-ecx +<span id="L263" class="LineNr">263 </span> <span class="subxComment"># (eax..ecx) = "-3"</span> +<span id="L264" class="LineNr">264 </span> b8/copy-to-eax <span class="Constant">"-3"</span>/imm32 +<span id="L265" class="LineNr">265 </span> 8b/-> *eax 1/r32/ecx +<span id="L266" class="LineNr">266 </span> 8d/copy-address *(eax+ecx+4) 1/r32/ecx +<span id="L267" class="LineNr">267 </span> 05/add-to-eax 4/imm32 +<span id="L268" class="LineNr">268 </span> <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span> +<span id="L269" class="LineNr">269 </span> 51/push-ecx +<span id="L270" class="LineNr">270 </span> 50/push-eax +<span id="L271" class="LineNr">271 </span> 89/<- %ecx 4/r32/esp +<span id="L272" class="LineNr">272 </span> <span class="subxComment">#</span> +<span id="L273" class="LineNr">273 </span> (<a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> %ecx) <span class="subxComment"># => eax</span> +<span id="L274" class="LineNr">274 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax -3 <span class="Constant">"F - test-parse-decimal-int-from-slice-negative"</span>) +<span id="L275" class="LineNr">275 </span><span class="Constant">$test-parse-decimal-int-helper-negative:end</span>: +<span id="L276" class="LineNr">276 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L277" class="LineNr">277 </span> 59/pop-to-ecx +<span id="L278" class="LineNr">278 </span> 58/pop-to-eax +<span id="L279" class="LineNr">279 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L280" class="LineNr">280 </span> 89/<- %esp 5/r32/ebp +<span id="L281" class="LineNr">281 </span> 5d/pop-to-ebp +<span id="L282" class="LineNr">282 </span> c3/return +<span id="L283" class="LineNr">283 </span> +<span id="L284" class="LineNr">284 </span><span class="subxTest">test-parse-decimal-int-from-slice-multi-digit-negative</span>: +<span id="L285" class="LineNr">285 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L286" class="LineNr">286 </span> 55/push-ebp +<span id="L287" class="LineNr">287 </span> 89/<- %ebp 4/r32/esp +<span id="L288" class="LineNr">288 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L289" class="LineNr">289 </span> 50/push-eax +<span id="L290" class="LineNr">290 </span> 51/push-ecx +<span id="L291" class="LineNr">291 </span> <span class="subxComment"># (eax..ecx) = "-32"</span> +<span id="L292" class="LineNr">292 </span> b8/copy-to-eax <span class="Constant">"-32"</span>/imm32 +<span id="L293" class="LineNr">293 </span> 8b/-> *eax 1/r32/ecx +<span id="L294" class="LineNr">294 </span> 8d/copy-address *(eax+ecx+4) 1/r32/ecx +<span id="L295" class="LineNr">295 </span> 05/add-to-eax 4/imm32 +<span id="L296" class="LineNr">296 </span> <span class="subxComment"># var slice/ecx: slice = {eax, ecx}</span> +<span id="L297" class="LineNr">297 </span> 51/push-ecx +<span id="L298" class="LineNr">298 </span> 50/push-eax +<span id="L299" class="LineNr">299 </span> 89/<- %ecx 4/r32/esp +<span id="L300" class="LineNr">300 </span> <span class="subxComment">#</span> +<span id="L301" class="LineNr">301 </span> (<a href='311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> %ecx) <span class="subxComment"># => eax</span> +<span id="L302" class="LineNr">302 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax -0x20 <span class="Constant">"F - test-parse-decimal-int-from-slice-multi-digit-negative"</span>) <span class="subxComment"># -32 in hex</span> +<span id="L303" class="LineNr">303 </span><span class="Constant">$test-parse-decimal-int-helper-multi-digit-negative:end</span>: +<span id="L304" class="LineNr">304 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L305" class="LineNr">305 </span> 59/pop-to-ecx +<span id="L306" class="LineNr">306 </span> 58/pop-to-eax +<span id="L307" class="LineNr">307 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L308" class="LineNr">308 </span> 89/<- %esp 5/r32/ebp +<span id="L309" class="LineNr">309 </span> 5d/pop-to-ebp +<span id="L310" class="LineNr">310 </span> c3/return +<span id="L311" class="LineNr">311 </span> +<span id="L312" class="LineNr">312 </span><span class="subxFunction">decimal-size</span>: <span class="subxComment"># n: int -> result/eax: int</span> +<span id="L313" class="LineNr">313 </span> <span class="subxComment"># pseudocode:</span> +<span id="L314" class="LineNr">314 </span> <span class="subxComment"># edi = 0</span> +<span id="L315" class="LineNr">315 </span> <span class="subxComment"># eax = n</span> +<span id="L316" class="LineNr">316 </span> <span class="subxComment"># if eax < 0</span> +<span id="L317" class="LineNr">317 </span> <span class="subxComment"># ++edi # for '-'</span> +<span id="L318" class="LineNr">318 </span> <span class="subxComment"># negate eax</span> +<span id="L319" class="LineNr">319 </span> <span class="subxComment"># while true</span> +<span id="L320" class="LineNr">320 </span> <span class="subxComment"># edx = 0</span> +<span id="L321" class="LineNr">321 </span> <span class="subxComment"># eax, edx = eax/10, eax%10</span> +<span id="L322" class="LineNr">322 </span> <span class="subxComment"># ++edi</span> +<span id="L323" class="LineNr">323 </span> <span class="subxComment"># if (eax == 0) break</span> +<span id="L324" class="LineNr">324 </span> <span class="subxComment"># eax = edi</span> +<span id="L325" class="LineNr">325 </span> <span class="subxComment">#</span> +<span id="L326" class="LineNr">326 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L327" class="LineNr">327 </span> 55/push-ebp +<span id="L328" class="LineNr">328 </span> 89/<- %ebp 4/r32/esp +<span id="L329" class="LineNr">329 </span> <span class="subxS1Comment"># . save registers</span> +<span id="L330" class="LineNr">330 </span> 51/push-ecx +<span id="L331" class="LineNr">331 </span> 52/push-edx +<span id="L332" class="LineNr">332 </span> 57/push-edi +<span id="L333" class="LineNr">333 </span> <span class="subxComment"># edi = 0</span> +<span id="L334" class="LineNr">334 </span> bf/copy-to-edi 0/imm32 +<span id="L335" class="LineNr">335 </span> <span class="subxComment"># eax = n</span> +<span id="L336" class="LineNr">336 </span> 8b/-> *(ebp+8) 0/r32/eax +<span id="L337" class="LineNr">337 </span> <span class="subxComment"># if (n < 0) negate n, increment edi</span> +<span id="L338" class="LineNr">338 </span> { +<span id="L339" class="LineNr">339 </span> 3d/compare-eax-with 0/imm32 +<span id="L340" class="LineNr">340 </span> 7d/jump-if->= <span class="Constant">break</span>/disp8 +<span id="L341" class="LineNr">341 </span> f7 3/subop/negate %eax +<span id="L342" class="LineNr">342 </span> 47/increment-edi +<span id="L343" class="LineNr">343 </span> } +<span id="L344" class="LineNr">344 </span> <span class="subxComment"># const ten/ecx = 10</span> +<span id="L345" class="LineNr">345 </span> b9/copy-to-ecx 0xa/imm32 +<span id="L346" class="LineNr">346 </span> { +<span id="L347" class="LineNr">347 </span> ba/copy-to-edx 0/imm32 +<span id="L348" class="LineNr">348 </span> f7 7/subop/idiv-edx-eax-by %ecx <span class="subxComment"># eax = edx:eax/10; edx = edx:eax%10</span> +<span id="L349" class="LineNr">349 </span> 47/increment-edi +<span id="L350" class="LineNr">350 </span> 3d/compare-eax-and 0/imm32 +<span id="L351" class="LineNr">351 </span> 75/jump-if-!= <span class="Constant">loop</span>/disp8 +<span id="L352" class="LineNr">352 </span> } +<span id="L353" class="LineNr">353 </span><span class="Constant">$decimal-size:end</span>: +<span id="L354" class="LineNr">354 </span> 89/<- %eax 7/r32/edi +<span id="L355" class="LineNr">355 </span> <span class="subxS1Comment"># . restore registers</span> +<span id="L356" class="LineNr">356 </span> 5f/pop-to-edi +<span id="L357" class="LineNr">357 </span> 5a/pop-to-edx +<span id="L358" class="LineNr">358 </span> 59/pop-to-ecx +<span id="L359" class="LineNr">359 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L360" class="LineNr">360 </span> 89/<- %esp 5/r32/ebp +<span id="L361" class="LineNr">361 </span> 5d/pop-to-ebp +<span id="L362" class="LineNr">362 </span> c3/return +<span id="L363" class="LineNr">363 </span> +<span id="L364" class="LineNr">364 </span><span class="subxTest">test-decimal-size-of-zero</span>: +<span id="L365" class="LineNr">365 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L366" class="LineNr">366 </span> 55/push-ebp +<span id="L367" class="LineNr">367 </span> 89/<- %ebp 4/r32/esp +<span id="L368" class="LineNr">368 </span> <span class="subxComment">#</span> +<span id="L369" class="LineNr">369 </span> (<a href='311decimal-int.subx.html#L312'>decimal-size</a> 0) <span class="subxComment"># => eax</span> +<span id="L370" class="LineNr">370 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 <span class="Constant">"F - test-decimal-size-of-zero"</span>) +<span id="L371" class="LineNr">371 </span><span class="Constant">$test-decimal-size-of-zero:end</span>: +<span id="L372" class="LineNr">372 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L373" class="LineNr">373 </span> 89/<- %esp 5/r32/ebp +<span id="L374" class="LineNr">374 </span> 5d/pop-to-ebp +<span id="L375" class="LineNr">375 </span> c3/return +<span id="L376" class="LineNr">376 </span> +<span id="L377" class="LineNr">377 </span><span class="subxTest">test-decimal-size-single-digit</span>: +<span id="L378" class="LineNr">378 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L379" class="LineNr">379 </span> 55/push-ebp +<span id="L380" class="LineNr">380 </span> 89/<- %ebp 4/r32/esp +<span id="L381" class="LineNr">381 </span> <span class="subxComment">#</span> +<span id="L382" class="LineNr">382 </span> (<a href='311decimal-int.subx.html#L312'>decimal-size</a> 4) <span class="subxComment"># => eax</span> +<span id="L383" class="LineNr">383 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 1 <span class="Constant">"F - test-decimal-size-single-digit"</span>) +<span id="L384" class="LineNr">384 </span><span class="Constant">$test-decimal-size-single-digit:end</span>: +<span id="L385" class="LineNr">385 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L386" class="LineNr">386 </span> 89/<- %esp 5/r32/ebp +<span id="L387" class="LineNr">387 </span> 5d/pop-to-ebp +<span id="L388" class="LineNr">388 </span> c3/return +<span id="L389" class="LineNr">389 </span> +<span id="L390" class="LineNr">390 </span><span class="subxTest">test-decimal-size-multi-digit</span>: +<span id="L391" class="LineNr">391 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L392" class="LineNr">392 </span> 55/push-ebp +<span id="L393" class="LineNr">393 </span> 89/<- %ebp 4/r32/esp +<span id="L394" class="LineNr">394 </span> <span class="subxComment">#</span> +<span id="L395" class="LineNr">395 </span> (<a href='311decimal-int.subx.html#L312'>decimal-size</a> 0xa) <span class="subxComment"># => eax</span> +<span id="L396" class="LineNr">396 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 2 <span class="Constant">"F - test-decimal-size-multi-digit"</span>) +<span id="L397" class="LineNr">397 </span><span class="Constant">$test-decimal-size-multi-digit:end</span>: +<span id="L398" class="LineNr">398 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L399" class="LineNr">399 </span> 89/<- %esp 5/r32/ebp +<span id="L400" class="LineNr">400 </span> 5d/pop-to-ebp +<span id="L401" class="LineNr">401 </span> c3/return +<span id="L402" class="LineNr">402 </span> +<span id="L403" class="LineNr">403 </span><span class="subxTest">test-decimal-size-single-digit-negative</span>: +<span id="L404" class="LineNr">404 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L405" class="LineNr">405 </span> 55/push-ebp +<span id="L406" class="LineNr">406 </span> 89/<- %ebp 4/r32/esp +<span id="L407" class="LineNr">407 </span> <span class="subxComment">#</span> +<span id="L408" class="LineNr">408 </span> (<a href='311decimal-int.subx.html#L312'>decimal-size</a> -4) <span class="subxComment"># => eax</span> +<span id="L409" class="LineNr">409 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 2 <span class="Constant">"F - test-decimal-size-single-digit-negative"</span>) +<span id="L410" class="LineNr">410 </span><span class="Constant">$test-decimal-size-single-digit-negative:end</span>: +<span id="L411" class="LineNr">411 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L412" class="LineNr">412 </span> 89/<- %esp 5/r32/ebp +<span id="L413" class="LineNr">413 </span> 5d/pop-to-ebp +<span id="L414" class="LineNr">414 </span> c3/return +<span id="L415" class="LineNr">415 </span> +<span id="L416" class="LineNr">416 </span><span class="subxTest">test-decimal-size-multi-digit-negative</span>: +<span id="L417" class="LineNr">417 </span> <span class="subxS1Comment"># . prologue</span> +<span id="L418" class="LineNr">418 </span> 55/push-ebp +<span id="L419" class="LineNr">419 </span> 89/<- %ebp 4/r32/esp +<span id="L420" class="LineNr">420 </span> <span class="subxComment">#</span> +<span id="L421" class="LineNr">421 </span> (<a href='311decimal-int.subx.html#L312'>decimal-size</a> -0xa) <span class="subxComment"># => eax</span> +<span id="L422" class="LineNr">422 </span> (<a href='502test.mu.html#L2'>check-ints-equal</a> %eax 3 <span class="Constant">"F - test-decimal-size-multi-digit-negative"</span>) +<span id="L423" class="LineNr">423 </span><span class="Constant">$test-decimal-size-multi-digit-negative:end</span>: +<span id="L424" class="LineNr">424 </span> <span class="subxS1Comment"># . epilogue</span> +<span id="L425" class="LineNr">425 </span> 89/<- %esp 5/r32/ebp +<span id="L426" class="LineNr">426 </span> 5d/pop-to-ebp +<span id="L427" class="LineNr">427 </span> c3/return +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |