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| author | Kartik Agaram <vc@akkartik.com> | 2021-03-23 17:31:08 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2021-03-23 17:31:08 -0700 |
| commit | 3350c34a74844e21ea69077e01efff3bae64bdcd (patch) | |
| tree | fa06ba58542297d1cff6b78958d4547a40a25d21 /html/linux/advent2020/2a.mu.html | |
| parent | 62a244211024a8367332541c571621883c05bcce (diff) | |
| download | mu-3350c34a74844e21ea69077e01efff3bae64bdcd.tar.gz | |
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Diffstat (limited to 'html/linux/advent2020/2a.mu.html')
| -rw-r--r-- | html/linux/advent2020/2a.mu.html | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/html/linux/advent2020/2a.mu.html b/html/linux/advent2020/2a.mu.html new file mode 100644 index 00000000..c3d6601c --- /dev/null +++ b/html/linux/advent2020/2a.mu.html @@ -0,0 +1,154 @@ +<!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 - linux/advent2020/2a.mu</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; } +.PreProc { color: #c000c0; } +.Special { color: #ff6060; } +.LineNr { } +.Delimiter { color: #c000c0; } +.Constant { color: #008787; } +.muFunction { color: #af5f00; text-decoration: underline; } +.muComment { color: #005faf; } +--> +</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/linux/advent2020/2a.mu'>https://github.com/akkartik/mu/blob/main/linux/advent2020/2a.mu</a> +<pre id='vimCodeElement'> +<span id="L1" class="LineNr"> 1 </span><span class="muComment"># <a href="https://adventofcode.com/2020/day/2">https://adventofcode.com/2020/day/2</a></span> +<span id="L2" class="LineNr"> 2 </span><span class="muComment">#</span> +<span id="L3" class="LineNr"> 3 </span><span class="muComment"># To run (on Linux):</span> +<span id="L4" class="LineNr"> 4 </span><span class="muComment"># $ git clone <a href="https://github.com/akkartik/mu">https://github.com/akkartik/mu</a></span> +<span id="L5" class="LineNr"> 5 </span><span class="muComment"># $ cd mu</span> +<span id="L6" class="LineNr"> 6 </span><span class="muComment"># $ ./translate advent2020/2a.mu</span> +<span id="L7" class="LineNr"> 7 </span><span class="muComment"># $ ./a.elf < input</span> +<span id="L8" class="LineNr"> 8 </span><span class="muComment">#</span> +<span id="L9" class="LineNr"> 9 </span><span class="muComment"># You'll need to register to download the 'input' file for yourself.</span> +<span id="L10" class="LineNr">10 </span> +<span id="L11" class="LineNr">11 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='2a.mu.html#L11'>main</a></span><span class="PreProc"> -> </span>_/<span class="Constant">ebx</span>: int <span class="Delimiter">{</span> +<span id="L12" class="LineNr">12 </span> <span class="PreProc">var</span> valid-password-count/<span class="Constant">edi</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span> +<span id="L13" class="LineNr">13 </span> <span class="PreProc">var</span> line-storage: (stream byte <span class="Constant">0x100</span>) <span class="muComment"># 256 bytes</span> +<span id="L14" class="LineNr">14 </span> <span class="PreProc">var</span> line/<span class="Constant">edx</span>: (addr stream byte) <span class="Special"><-</span> address line-storage +<span id="L15" class="LineNr">15 </span> <span class="PreProc">var</span> slice-storage: slice +<span id="L16" class="LineNr">16 </span> <span class="PreProc">var</span> slice/<span class="Constant">ecx</span>: (addr slice) <span class="Special"><-</span> address slice-storage +<span id="L17" class="LineNr">17 </span> <span class="Delimiter">{</span> +<span id="L18" class="LineNr">18 </span> <span class="muComment"># read line from stdin</span> +<span id="L19" class="LineNr">19 </span> <a href='../106stream.subx.html#L17'>clear-stream</a> line +<span id="L20" class="LineNr">20 </span> <a href='../305keyboard.subx.html#L158'>read-line-from-real-keyboard</a> line +<span id="L21" class="LineNr">21 </span> <span class="muComment"># if line is empty (not even a newline), quit</span> +<span id="L22" class="LineNr">22 </span> <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special"><-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> line +<span id="L23" class="LineNr">23 </span> compare done?, <span class="Constant">0</span>/false +<span id="L24" class="LineNr">24 </span> <span class="PreProc">break-if-!=</span> +<span id="L25" class="LineNr">25 </span> <a href='../304screen.subx.html#L147'>print-stream-to-real-screen</a> line +<span id="L26" class="LineNr">26 </span> <span class="muComment"># slice = next-token(line, '-')</span> +<span id="L27" class="LineNr">27 </span> <a href='../124next-token.subx.html#L10'>next-token</a> line, <span class="Constant">0x2d</span>, slice +<span id="L28" class="LineNr">28 </span> <span class="muComment"># start = parse-int(slice)</span> +<span id="L29" class="LineNr">29 </span> <span class="PreProc">var</span> _start/<span class="Constant">eax</span>: int <span class="Special"><-</span> <a href='../311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> slice +<span id="L30" class="LineNr">30 </span> <span class="PreProc">var</span> start/<span class="Constant">ebx</span>: int <span class="Special"><-</span> copy _start +<span id="L31" class="LineNr">31 </span> <span class="PreProc">var</span> dash/<span class="Constant">eax</span>: byte <span class="Special"><-</span> <a href='../112read-byte.subx.html#L273'>read-byte</a> line <span class="muComment"># skip '-'</span> +<span id="L32" class="LineNr">32 </span> <span class="muComment"># slice = next-token(line, ' ')</span> +<span id="L33" class="LineNr">33 </span> <a href='../124next-token.subx.html#L10'>next-token</a> line, <span class="Constant">0x20</span>, slice +<span id="L34" class="LineNr">34 </span> <span class="PreProc">var</span> _end/<span class="Constant">eax</span>: int <span class="Special"><-</span> <a href='../311decimal-int.subx.html#L4'>parse-decimal-int-from-slice</a> slice +<span id="L35" class="LineNr">35 </span> <span class="PreProc">var</span> end/<span class="Constant">esi</span>: int <span class="Special"><-</span> copy _end +<span id="L36" class="LineNr">36 </span> <a href='../405screen.mu.html#L484'>print-int32-decimal</a> <span class="Constant">0</span>, start +<span id="L37" class="LineNr">37 </span> <a href='../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">" "</span> +<span id="L38" class="LineNr">38 </span> <a href='../405screen.mu.html#L484'>print-int32-decimal</a> <span class="Constant">0</span>, end +<span id="L39" class="LineNr">39 </span> <a href='../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">"\n"</span> +<span id="L40" class="LineNr">40 </span> <span class="muComment"># letter = next non-space</span> +<span id="L41" class="LineNr">41 </span> <a href='../124next-token.subx.html#L464'>skip-chars-matching-whitespace</a> line +<span id="L42" class="LineNr">42 </span> <span class="PreProc">var</span> letter/<span class="Constant">eax</span>: byte <span class="Special"><-</span> <a href='../112read-byte.subx.html#L273'>read-byte</a> line +<span id="L43" class="LineNr">43 </span> <span class="muComment"># skip some stuff</span> +<span id="L44" class="LineNr">44 </span> <span class="Delimiter">{</span> +<span id="L45" class="LineNr">45 </span> <span class="PreProc">var</span> colon/<span class="Constant">eax</span>: byte <span class="Special"><-</span> <a href='../112read-byte.subx.html#L273'>read-byte</a> line <span class="muComment"># skip ':'</span> +<span id="L46" class="LineNr">46 </span> <span class="Delimiter">}</span> +<span id="L47" class="LineNr">47 </span> <a href='../124next-token.subx.html#L464'>skip-chars-matching-whitespace</a> line +<span id="L48" class="LineNr">48 </span> <span class="muComment"># now check the rest of the line</span> +<span id="L49" class="LineNr">49 </span> <span class="PreProc">var</span> <a href='2a.mu.html#L63'>valid?</a>/<span class="Constant">eax</span>: boolean <span class="Special"><-</span> <a href='2a.mu.html#L63'>valid?</a> start, end, letter, line +<span id="L50" class="LineNr">50 </span> compare <a href='2a.mu.html#L63'>valid?</a>, <span class="Constant">0</span>/false +<span id="L51" class="LineNr">51 </span> <span class="Delimiter">{</span> +<span id="L52" class="LineNr">52 </span> <span class="PreProc">break-if-=</span> +<span id="L53" class="LineNr">53 </span> <a href='../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">"valid!\n"</span> +<span id="L54" class="LineNr">54 </span> valid-password-count <span class="Special"><-</span> increment +<span id="L55" class="LineNr">55 </span> <span class="Delimiter">}</span> +<span id="L56" class="LineNr">56 </span> <span class="PreProc">loop</span> +<span id="L57" class="LineNr">57 </span> <span class="Delimiter">}</span> +<span id="L58" class="LineNr">58 </span> <a href='../405screen.mu.html#L484'>print-int32-decimal</a> <span class="Constant">0</span>, valid-password-count +<span id="L59" class="LineNr">59 </span> <a href='../405screen.mu.html#L169'>print-string</a> <span class="Constant">0</span>, <span class="Constant">"\n"</span> +<span id="L60" class="LineNr">60 </span> <span class="PreProc">return</span> <span class="Constant">0</span> +<span id="L61" class="LineNr">61 </span><span class="Delimiter">}</span> +<span id="L62" class="LineNr">62 </span> +<span id="L63" class="LineNr">63 </span><span class="PreProc">fn</span> <span class="muFunction"><a href='2a.mu.html#L63'>valid?</a></span> start: int, end: int, letter: byte, password: (addr stream byte)<span class="PreProc"> -> </span>_/<span class="Constant">eax</span>: boolean <span class="Delimiter">{</span> +<span id="L64" class="LineNr">64 </span> <span class="PreProc">var</span> letter-count/<span class="Constant">edi</span>: int <span class="Special"><-</span> copy <span class="Constant">0</span> +<span id="L65" class="LineNr">65 </span> <span class="muComment"># for every c in password</span> +<span id="L66" class="LineNr">66 </span> <span class="muComment"># if (c == letter)</span> +<span id="L67" class="LineNr">67 </span> <span class="muComment"># ++letter-count</span> +<span id="L68" class="LineNr">68 </span> <span class="Delimiter">{</span> +<span id="L69" class="LineNr">69 </span> <span class="PreProc">var</span> done?/<span class="Constant">eax</span>: boolean <span class="Special"><-</span> <a href='../309stream.subx.html#L6'>stream-empty?</a> password +<span id="L70" class="LineNr">70 </span> compare done?, <span class="Constant">0</span>/false +<span id="L71" class="LineNr">71 </span> <span class="PreProc">break-if-!=</span> +<span id="L72" class="LineNr">72 </span> <span class="PreProc">var</span> c/<span class="Constant">eax</span>: byte <span class="Special"><-</span> <a href='../112read-byte.subx.html#L273'>read-byte</a> password +<span id="L73" class="LineNr">73 </span> compare c, letter +<span id="L74" class="LineNr">74 </span> <span class="Delimiter">{</span> +<span id="L75" class="LineNr">75 </span> <span class="PreProc">break-if-!=</span> +<span id="L76" class="LineNr">76 </span> letter-count <span class="Special"><-</span> increment +<span id="L77" class="LineNr">77 </span> <span class="Delimiter">}</span> +<span id="L78" class="LineNr">78 </span> <span class="PreProc">loop</span> +<span id="L79" class="LineNr">79 </span> <span class="Delimiter">}</span> +<span id="L80" class="LineNr">80 </span> <span class="muComment"># return (start <= letter-count <= end)</span> +<span id="L81" class="LineNr">81 </span> compare letter-count, start +<span id="L82" class="LineNr">82 </span> <span class="Delimiter">{</span> +<span id="L83" class="LineNr">83 </span> <span class="PreProc">break-if->=</span> +<span id="L84" class="LineNr">84 </span> <span class="PreProc">return</span> <span class="Constant">0</span>/false +<span id="L85" class="LineNr">85 </span> <span class="Delimiter">}</span> +<span id="L86" class="LineNr">86 </span> compare letter-count, end +<span id="L87" class="LineNr">87 </span> <span class="Delimiter">{</span> +<span id="L88" class="LineNr">88 </span> <span class="PreProc">break-if-<=</span> +<span id="L89" class="LineNr">89 </span> <span class="PreProc">return</span> <span class="Constant">0</span>/false +<span id="L90" class="LineNr">90 </span> <span class="Delimiter">}</span> +<span id="L91" class="LineNr">91 </span> <span class="PreProc">return</span> <span class="Constant">1</span>/true +<span id="L92" class="LineNr">92 </span><span class="Delimiter">}</span> +</pre> +</body> +</html> +<!-- vim: set foldmethod=manual : --> |