build index.html for all winners
Updated manifest as per recent file changes. Updated winner `.winner.json` to reflect the manifest changes. Added [bin/all_run.sh](bin/all_run.sh) tool to run a command over all winning entries. These tools had slight improvements in the help usage message: * bin/gen-author.sh VERSION="1.3.1 2024-01-16" * bin/gen-inventory.sh VERSION="1.0.1 2024-01-16" * bin/pandoc_wrapper.sh VERSION="1.3.1 2024-01-16" * bin/subst.default.sh VERSION="1.1.1 2024-01-16" * bin/subst.winner-index.sh VERSION="1.1.1 2024-01-16" The `bin/readme2index.sh` tool was improved so that if the `index.html` file exists and the tool forms the exact same content, then the file `index.html` file is NOT touched. * bin/readme2index.sh VERSION="1.1 2024-01-16" We used the following command to generate `index.html` files for all winning entries: ```sh bin/all_run.sh -v 3 bin/readme2index.sh ``` NOTE: We have not (yet) built HTML files above the winner directory level (e.g., no year level nor top level HTML), nor have be built non-index HTML files for winners. NOTE: By default we are running `pandoc(1)` with: ``` --fail-if-warnings=true ``` This means that any problems with markdown to HTML generates an error. This is done to be sure that the HTML conversion is clean. We had to fix the following `README.md` files: * `2000/rince/README.md` The reference [^2] was never used. We made a guess that [^2] applies to the same spot as [^1]. Perhaps there is a better spot where [^2] applies? NOTE: For every reference, there MUST be some place where that reference is used. * 2012/vik/README.md The string "$...$" is assumed to be a TeX encoded string. NOTE: Every "$..$" needs to be backslashed as in "\$..\$". * 2018/burton1/README.md The reference [2] was duplicated. We changed the second [2] to [3]. NOTE: Every reference needs to have a unique number. * 2020/carlini/README.md The string "$...$" is assumed to be a TeX encoded string. NOTE: Every "$..$" needs to be backslashed as in "\$..\$". We also found 2 errors in the `author/author_handle.json` file set: * author/Anonymous_2001.json The `author/Anonymous_2001.json` file was missing. * author/Jari_Arkko.json The winner ID for `1989_jar.1` had a typo.
This commit is contained in:
1 parent
893cd915b6
commit
c1466f5165
350 files changed
+95242
-4217
No files matched your search
+763
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,775 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/birken/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 birken</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: birken winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,birken,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/birken</title>
|
||||
<meta name="description" content="2013 IOCCC winner birken">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, birken">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 birken</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/birken</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.first.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fbirken%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/birken/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left Disabled" href="#">first entry</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../cable1/index.html">cable1 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.first.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Michael_Birken">Michael
|
||||
Birken</a><br> Location: <a
|
||||
href="/temp-test-ioccc/location.html#US">US</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> alt</span></code></pre></div>
|
||||
<p>We recommend that you use the alt version first to see what this
|
||||
entry looked like back in 2013 (with a configurable speed). If you wish
|
||||
to use the original version see the <a href="#original-code">original
|
||||
code</a> section below.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./birken.alt</span> <span class="op"><</span> 17_columns_wide_paint_by_numbers_file</span></code></pre></div>
|
||||
<p>NOTE: if your terminal is messed up after running this (perhaps from
|
||||
exiting before it finishes) try using <code>reset</code> to restore the
|
||||
terminal. This will clear the screen.</p>
|
||||
<h2 id="try">Try:</h2>
|
||||
<p>This alternate version, which we recommend that you use in order to
|
||||
see what is happening with modern systems, and to not flash colours too
|
||||
quickly, which can be problematic for some people, can be configured to
|
||||
different speeds by way of the value used in <code>usleep(3)</code>. The
|
||||
default is <code>13500</code> but you can reconfigure it should you wish
|
||||
(see below).</p>
|
||||
<p>To see the program run on each text file, try:</p>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.alt.sh</span></span></code></pre></div>
|
||||
<p>If you have perl installed it will also try a random run.</p>
|
||||
<p>Finding the ‘right’ default value was a fine line; the default, 15000
|
||||
microseconds (0.015 seconds), will take quite a while to finish but it
|
||||
allows one to more easily see what is going on. Even easier to see would
|
||||
be 25000 but these values make it quite slow and one could easily lose
|
||||
interest. Like some other entries where this was made an alternate
|
||||
version it is configurable at compile time. If you wish to speed it up
|
||||
by 100% you can instead do:</p>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> clobber SLEEP=7500 alt</span></code></pre></div>
|
||||
<p>and then try <code>birken.alt</code> as above.</p>
|
||||
<p>If you wish to speed that up 200% (300% total) you can use instead
|
||||
try <code>SLEEP=3750</code>. Doing this you might find the right value
|
||||
to your liking; use ctrl-c to terminate the program early but note that
|
||||
the terminal is likely to be messed up. In that case try:</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="ex">reset</span></span></code></pre></div>
|
||||
<p>to make it sane again (running to completion will do that for
|
||||
you).</p>
|
||||
<h2 id="original-code">Original code:</h2>
|
||||
<p>The original code will run faster with modern systems which is likely
|
||||
to make it hard to see the art of the entry but you may do so if you
|
||||
wish.</p>
|
||||
<h3 id="original-build">Original build:</h3>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
|
||||
<h3 id="original-use">Original use:</h3>
|
||||
<p>Use <code>birken</code> as you would <code>birken.alt</code>
|
||||
above.</p>
|
||||
<h3 id="original-try">Original try:</h3>
|
||||
<p>To use the demo script with the original code, try:</p>
|
||||
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
|
||||
<p>PLEASE be careful if you are sensitive to flashing colours!</p>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>This program also wins the “Most amusing abuse of the iocccsize tool”
|
||||
award; although not the absolute best: it is possible to achieve 0 by
|
||||
writing:</p>
|
||||
<div class="sourceCode" id="cb8"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a> <span class="co">/* *\</span></span>
|
||||
<span id="cb8-2"><a href="#cb8-2" aria-hidden="true" tabindex="-1"></a><span class="co"> /....</span></span></code></pre></div>
|
||||
<p>The game of Tetris had been used in many endeavors, from studying <a
|
||||
href="http://arxiv.org/abs/cs/0210020">algorithmic complexity</a> to <a
|
||||
href="http://www.livescience.com/19894-tetris-treat-ptsd-flashbacks.html">treating
|
||||
PTSD</a> and it’s even been <a
|
||||
href="http://hacks.mit.edu/Hacks/by_year/2012/tetris/">put on MIT’s
|
||||
Green Building</a>. Using it for painting by numbers looks like a novel
|
||||
idea.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="about-this-document">About This Document</h3>
|
||||
<p>This document is best viewed as an HTML file in a browser that
|
||||
supports animated <a
|
||||
href="https://en.wikipedia.org/wiki/GIF">GIF</a>s.</p>
|
||||
<p>See the files: <code>*.txt</code>, <code>*.png</code> and
|
||||
<code>*.gif</code>.</p>
|
||||
<h3 id="abstract">Abstract</h3>
|
||||
<p>By rotating, positioning and dropping a predetermined sequence of
|
||||
pieces, this program exploits the mechanics of Tetris to generate
|
||||
arbitrary images.</p>
|
||||
<h3 id="algorithm-overview">Algorithm Overview</h3>
|
||||
<p>The algorithm converts pixels from a source image into squares in the
|
||||
<a href="https://en.wikipedia.org/wiki/Tetris">Tetris</a> play-field,
|
||||
one row at a time from the bottom up. To generate an individual square,
|
||||
the algorithm assembles a structure consisting of a rectangular region
|
||||
fully supported by a single square protruding from the bottom. When the
|
||||
rectangular region is completed, its rows are cleared, leaving behind
|
||||
the protruding square. Three examples of the process appear below.</p>
|
||||
<p><img src="pen0.gif" /></p>
|
||||
<p><img src="pen1.gif" /></p>
|
||||
<p><img src="pen2.gif" /></p>
|
||||
<p>During construction of a row, all of the squares produced by this
|
||||
method must be supported. In the images above, the generated squares are
|
||||
supported by the floor of the play-field. However, if an arbitrary row
|
||||
contains holes, it may not provide the support necessary for the
|
||||
construction of the row above it. The algorithm solves this problem by
|
||||
constructing a flat platform on top of the row with holes. In the
|
||||
animation below, a platform is built above a row comprising of a single
|
||||
red square. The platform is a temporary structure and inserting the
|
||||
final piece removes it.</p>
|
||||
<p><img src="platform0.gif" /></p>
|
||||
<p>Below, a row containing 5 red squares is deposited above a row
|
||||
containing 3 red squares. This is accomplished by building a flat
|
||||
platform on top of the lower row. The platform provides the support
|
||||
necessary to generate the 5 red squares. Finally, the platform is
|
||||
removed by inserting its final piece and the new row drops into place.
|
||||
Note, if the algorithm needed to generate the rows in the opposite order
|
||||
(a row of 3 red squares above a row of 5 red squares), a platform would
|
||||
not be necessary.</p>
|
||||
<p><img src="platform1.gif" /></p>
|
||||
<h3 id="single-square-emitters">Single Square Emitters</h3>
|
||||
<p>For reference, the names of the 7 <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a> (the game
|
||||
pieces or actually a kind of geometric shape used in <a
|
||||
href="https://en.wikipedia.org/wiki/Tetris">Tetris</a>) appear in the
|
||||
table below.</p>
|
||||
<p><img src="names.png" /></p>
|
||||
<p>This algorithm was tailored specifically to render sprites from early
|
||||
video games. Those games packed graphics into 8x8 tiles where 2 bits
|
||||
were dedicated to each pixel. Consequentially, sprites usually contained
|
||||
only 3 colors plus transparent regions and they were typically sized
|
||||
either 16x16 or 16x32 pixels.</p>
|
||||
<p>The animation below depicts all the patterns used to emit single
|
||||
squares. <code>J</code>, <code>T</code> and <code>L</code> <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a> are used
|
||||
interchangeably within each pattern to produce the protruding square at
|
||||
the bottom. The algorithm assigns those tetriminos to the 3 colors
|
||||
present in the sprite. The remaining tetriminos are assigned arbitrary
|
||||
colors. And, all the colors remain constant during gameplay.</p>
|
||||
<p><img src="pen4.gif" /></p>
|
||||
<p>It is not possible to emit a square of all 3 colors in the first 2
|
||||
and the last 2 columns due to the shapes of the 3 <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a>. As a
|
||||
result, the minimal width of a play-field to accommodate a 16 pixel wide
|
||||
sprite is <code>2 + 16 + 2 = 20</code> squares. However, it turns out
|
||||
that 20 is too small.</p>
|
||||
<p>As illustrated below, the region above the protruding square cannot
|
||||
exclusively consist of a single row because the only pieces that could
|
||||
fit, the <code>I</code> <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a>, are
|
||||
unsupported.</p>
|
||||
<p><img src="pen5.gif" /></p>
|
||||
<p>With 2 rows, the only means of spanning the full play-field width in
|
||||
a way that remains supported is to use <code>S</code> and <code>Z</code>
|
||||
<a href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a>. But,
|
||||
that will always leave holes in the upper row.</p>
|
||||
<p><img src="pen6.gif" /></p>
|
||||
<p>The minimal number of rows required above the protruding square is 3
|
||||
and as shown repeatedly above, such patterns do exist. 20 squares is the
|
||||
minimal width required to fit a 16 pixel wide sprite. But,
|
||||
<code>20 * 3 + 1 = 61</code>, which is not evenly divisible by 4 and
|
||||
hence not constructible out of <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a>. However,
|
||||
a width of 21 yields <code>21 * 3 + 1 = 64</code>, which can be built
|
||||
with 16 tetriminos. That width actually enables the algorithm to render
|
||||
sprites up to 17 pixels wide.</p>
|
||||
<p>The original <a
|
||||
href="https://en.wikipedia.org/wiki/Tetris">Tetris</a> play-field is 10
|
||||
x 20 squares, a 1:2 ratio. The program maintains that ratio by using a
|
||||
play-field of 21 x 42 squares.</p>
|
||||
<p>Since <code>J</code>, <code>T</code> and <code>L</code> <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a> are used
|
||||
interchangeably to produce the emitted square and 3 squares of those
|
||||
tetriminos contribute to the row above it, there are
|
||||
<code>21 - 3 + 1 = 19</code> single square emitting patterns. However,
|
||||
due to mirror symmetry, there are really only 10 patterns. Clearing 3
|
||||
rows works for the majority of them. But, an exhaustive computer search
|
||||
revealed that 2 of the patterns require more. The next possible option
|
||||
is 7 rows since <code>21 * 7 + 1 = 148</code>, requiring 37 tetriminos.
|
||||
As the images below show, those patterns do exist.</p>
|
||||
<p><img src="pen7.gif" /></p>
|
||||
<p><img src="pen8.gif" /></p>
|
||||
<h3 id="platforms">Platforms</h3>
|
||||
<p>Before a row is constructed, the algorithm inspects the row below it.
|
||||
If the row below fails to provide support for all of the squares to be
|
||||
deposited above it, then a temporary platform is required. When that
|
||||
platform is removed, the new row will drop, leaving some of the squares
|
||||
apparently floating above empty space due to the way that gravity works
|
||||
in the original <a
|
||||
href="https://en.wikipedia.org/wiki/Tetris">Tetris</a>.</p>
|
||||
<p>The illustration below depicts the 10 platform patterns (really only
|
||||
5 considering mirror symmetry). The construction of a platform begins by
|
||||
dropping a <code>T</code> <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetrimino</a> on top one
|
||||
of the squares of the last generated row. The remaining tetriminos
|
||||
support each other down to that first <code>T</code>. Meaning, as long
|
||||
as the previously generated row contains at least 1 square, like the red
|
||||
square below, then it is possible to construct a flat platform above it
|
||||
for the generation of the next row.</p>
|
||||
<p><img src="platform2.gif" /></p>
|
||||
<p>In the middle of platform construction, the bottom row gets completed
|
||||
and cleared, leaving 3 rows above it. The final <code>J</code> or
|
||||
<code>L</code> <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetrimino</a> that will
|
||||
remove those rows is not inserted until the square emitters are done
|
||||
generating the next row of the sprite on top of the platform. That final
|
||||
piece precludes square emission in the first and last 2 columns. But, as
|
||||
discussed above, the square emitters are limited to the 17 inner columns
|
||||
due to the geometry of the <code>J</code>, <code>T</code> and
|
||||
<code>L</code> tetriminos used in the process.</p>
|
||||
<p>Also, of the 19 possible ways to start constructing a platform on top
|
||||
of a <code>T</code> <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetrimino</a>, only the
|
||||
10 patterns shown above exist.</p>
|
||||
<h3 id="program-input">Program Input</h3>
|
||||
<p>The input sprite is represented textually. Digit characters
|
||||
<code>0</code> to <code>7</code> correspond to pixels with colors from
|
||||
the palette below.</p>
|
||||
<figure>
|
||||
<img src="palette.png" alt="ANSI color palette" />
|
||||
<figcaption aria-hidden="true">ANSI color palette</figcaption>
|
||||
</figure>
|
||||
<p>As discussed above, sprites are limited to a maximum of 3 colors from
|
||||
this palette.</p>
|
||||
<p>All other characters are interpreted as transparent pixels.</p>
|
||||
<p>The maximum permissible size of the input text is 32 rows by 17
|
||||
columns. Row length can vary as long as no single row exceeds 17
|
||||
characters.</p>
|
||||
<p>Every row must contain at least one palette digit character.</p>
|
||||
<p>The <code>*.txt</code> files contain different sprites in this
|
||||
textual format that can be fed into standard input. Several examples
|
||||
take advantage of the <a
|
||||
href="https://en.wikipedia.org/wiki/Tetris">Tetris</a> play-field
|
||||
background color. Instead of using character <code>0</code>, internal
|
||||
regions marked as transparent are effectively rendered as black.</p>
|
||||
<h3 id="program-output">Program Output</h3>
|
||||
<p>The program conceptually uses <a
|
||||
href="https://en.wikipedia.org/wiki/Tetris">Tetris</a> as an output
|
||||
device similar to a <a
|
||||
href="https://en.wikipedia.org/wiki/Line_printer">line printer</a>. It
|
||||
restricts itself to those operations that can be performed on the Tetris
|
||||
play-field: spawning, rotating, positioning and dropping <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a>. This
|
||||
process is visually represented using ANSI escape sequences.</p>
|
||||
<h3 id="ansimation">ANSImation</h3>
|
||||
<p>The rate at which the program plays <a
|
||||
href="https://en.wikipedia.org/wiki/Tetris">Tetris</a> is completely
|
||||
determined by the rate in which the terminal application receives and
|
||||
displays the <a
|
||||
href="https://en.wikipedia.org/wiki/ANSI_escape_code">ANSI escape</a>
|
||||
sequences.</p>
|
||||
<p>To slow down the output programmatically, introduce a delay
|
||||
immediately after the call to <code>fflush(3)</code> (N.B: see <a
|
||||
href="birken.alt.c">birken.alt.c</a>).</p>
|
||||
<h3 id="ioccc-size-tool-bug">IOCCC Size Tool Bug</h3>
|
||||
<p>This program demonstrates how to exploit a bug in IOCCC size tool
|
||||
version <code>2013-07-30-v17</code>. The first line of the program is
|
||||
reproduced below.</p>
|
||||
<pre><code>char*_ = "'""/*";</code></pre>
|
||||
<p>If that line is added to the top of any program, the tool will report
|
||||
a size of 8.</p>
|
||||
<div class="sourceCode" id="cb10"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./iocccsize <span class="at">-i</span> <span class="op"><</span> prog.c</span>
|
||||
<span id="cb10-2"><a href="#cb10-2" aria-hidden="true" tabindex="-1"></a><span class="ex">8</span></span></code></pre></div>
|
||||
<p>When that line is deleted from this program, the tool properly
|
||||
reports the secondary size limit of the program as 2048.</p>
|
||||
<div class="sourceCode" id="cb11"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./iocccsize <span class="at">-i</span> <span class="op"><</span> birken.c</span>
|
||||
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a><span class="ex">2048</span></span></code></pre></div>
|
||||
<p>Although this bug provides an easy means of circumventing contest
|
||||
rule 2, as demonstrated from the size value, this entry is not
|
||||
necessarily striving for a ‘worst abuse of the rules’ award.</p>
|
||||
<h3 id="obfuscations">Obfuscations</h3>
|
||||
<p>This program is almost, but not quite, entirely unlike a
|
||||
demonstration of good programming practices. Contrary to other programs,
|
||||
an inspection of this one will certainly reveal that it possesses tea,
|
||||
not to mention an affinity for the constant 42.</p>
|
||||
<p>Variables are named and ordered to spell out, <code>"Tetris"</code>,
|
||||
<code>"ELORG"</code>, <code>"DVK"</code> and the aforementioned
|
||||
<code>"Tea"</code>. <a
|
||||
href="https://en.wikipedia.org/wiki/Elektronorgtechnica">ELORG</a> is
|
||||
the abbreviation for <code>Elektronorgtechnica</code>, the former Soviet
|
||||
state owned computer organization that handled the worldwide Tetris
|
||||
intellectual property rights. DVK is the line of Soviet
|
||||
PDP-11-compatible personal computers capable of running <a
|
||||
href="https://en.wikipedia.org/wiki/Alexey_Pajitnov">Alexey
|
||||
Pajitnov</a>’s original 1984 <a
|
||||
href="https://en.wikipedia.org/wiki/Tetris">Tetris</a> prototype.</p>
|
||||
<p>Carefully selected variable names also yielded wonderful expressions
|
||||
like <code>l=0</code>, <code>O=0</code>, <code>O=1</code> and
|
||||
<code>while(O)</code>. <code>"Tetris"</code> also makes a second
|
||||
appearance of sorts:</p>
|
||||
<div class="sourceCode" id="cb12"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="op">[</span>T<span class="op">][</span>e<span class="op">][</span>t<span class="op">]--;</span> <span class="cf">while</span><span class="op">(</span>R<span class="op">+</span>i<span class="op">)</span> <span class="op">{</span> s</span></code></pre></div>
|
||||
<p>The source is formatted to resemble the <a
|
||||
href="https://en.wikipedia.org/wiki/Tetris">Tetris</a> play-field
|
||||
mid-game. It is also an homage to all the <a href="/years.html">past
|
||||
IOCCC entries</a> formatted as a compact block of text; the
|
||||
<code>T</code>, orientated appropriately to reflect its name and the
|
||||
first letter in the title of the game, is just a moment away from
|
||||
producing such a text block.</p>
|
||||
<p>Three tables are encoded as separate strings within the program:</p>
|
||||
<p>The first string stores the coordinates of the squares of the 19
|
||||
distinct rotations of <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a> (see
|
||||
below). Since a tetrimino is a chain of 4 squares, all tetriminos fit
|
||||
within a 4x4 matrix. To determine the coordinates of the squares, the
|
||||
tetrimino is pushed to the upper-left of the matrix. Each coordinate
|
||||
value requires 2 bits of storage. Consequentially, the four
|
||||
x-coordinates and the four y-coordinates were packed into separate
|
||||
octets. To convert the octets into valid ASCII characters, the squares
|
||||
were sorted such that the least significant bits stored the largest
|
||||
coordinate values. The results were offset by 35, the <code>#</code>
|
||||
character, which is 1 beyond the ASCII value of <code>"</code>, making
|
||||
it easier to pack into a string. None of the resultant values are beyond
|
||||
ASCII 127. The coordinates for all 19 rotations fit in a string of
|
||||
length 38.</p>
|
||||
<p><img src="rotations.png" /></p>
|
||||
<p>The second string stores the single square emitter patterns and the
|
||||
platform patterns. Each pattern is a sequence of pairs,
|
||||
<code>{ tetrimino index, drop x-coordinate }</code>. As mentioned, there
|
||||
are 19 distinct rotations, requiring 5 bits of storage for the <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetrimino</a> index.
|
||||
Another 5 bits is required for the drop x-coordinate since there are 21
|
||||
columns in the play-field. Necessarily, the pair is stored as 2 separate
|
||||
characters. By offsetting them by 40, the <code>(</code> character, the
|
||||
resultant string almost resembles a long and complex mathematical
|
||||
expression. The program takes advantage of mirror symmetry by only
|
||||
storing 10 single square emitter patterns and 5 platform patterns. The
|
||||
pattern lengths are not encoded within the string. Rather, they are
|
||||
embedded within the string decoding logic.</p>
|
||||
<p>The third string conceptually stores the default colors of the 19
|
||||
rotations. A 3-bit value is assigned to each, covering the 7 possible
|
||||
colors. In addition, when a mirrored pattern is executed, <code>J</code>
|
||||
exchanges with <code>L</code> and <code>S</code> exchanges with
|
||||
<code>Z</code>, necessitating a second list of 3-bit color values. Pairs
|
||||
of color values (6 bits) fit comfortably into a character that is offset
|
||||
by <code>#</code>. The result is a string of length 19.</p>
|
||||
<h3 id="obfuscations-1">Obfuscations</h3>
|
||||
<p>The program is full of subtle obfuscations:</p>
|
||||
<ul>
|
||||
<li><p>The unary decrement operator is used in conjunction with global
|
||||
variable automatic zero initialization to set variables to
|
||||
<code>-1</code>.</p></li>
|
||||
<li><p>The boolean expression of the form, <code>x + 1</code>, is used
|
||||
multiple times to determine if a value is not <code>-1</code>.
|
||||
Similarly, expressions of the form <code>x - y</code> are used to
|
||||
determine if <code>x != y</code>.</p></li>
|
||||
<li><p>Several arrays store unrelated data in segments throughout the
|
||||
array to reduce named variables..</p></li>
|
||||
<li><p>The <code>x["..."]</code> trick appears once.</p></li>
|
||||
<li><p>Variable <code>i</code> is less than necessary.</p></li>
|
||||
<li><p>A cursorily glance at the expressions <code>4&&L</code>
|
||||
and <code>m&&e==m</code> suggests that they always evaluate to
|
||||
true.</p></li>
|
||||
<li><p>The varying single square emitter pattern lengths are resolved
|
||||
during string decoding using the clever expression,
|
||||
<code>(i & 3) - 3</code>, which identifies pattern 3 and 7 as
|
||||
longer.</p></li>
|
||||
<li><p>The file size of <a href="birken.c">birken.c</a> is a prime
|
||||
number. Deleting the first line also produces a prime-sized program.
|
||||
These properties do not qualify the program as a prime number
|
||||
generator.</p></li>
|
||||
</ul>
|
||||
<h3 id="beyond-obfuscation">Beyond Obfuscation</h3>
|
||||
<p>Due to the contest code size constraint, some optimizations
|
||||
reluctantly had to be omitted. For example, multi-square emitters are
|
||||
possible:</p>
|
||||
<p><img src="multi2.gif" /></p>
|
||||
<p><img src="multi3.gif" /></p>
|
||||
<p><img src="multi4.gif" /></p>
|
||||
<p><img src="multi5.gif" /></p>
|
||||
<p>In fact, using dynamic programming and creative heuristics, real-time
|
||||
search is possible, enabling patterns like this:</p>
|
||||
<p><img src="triple0.gif" /></p>
|
||||
<p>And, even this:</p>
|
||||
<p><img src="triple1.gif" /></p>
|
||||
<p>In addition, it is possible to extend the algorithm to 6 colors
|
||||
instead of just 3. This is achieved using <code>I</code>, <code>S</code>
|
||||
and <code>Z</code> to produce the protruding square. A series of
|
||||
rectangular regions are constructed above those <a
|
||||
href="https://en.wikipedia.org/wiki/Tetromino">tetriminos</a> to erode
|
||||
them down to a single emitted square.</p>
|
||||
<p>The details of these enhancements are left as an exercise to the
|
||||
reader.</p>
|
||||
<h3 id="example-files">Example Files</h3>
|
||||
<p>The following example files were created by the program author. They
|
||||
can be freely used and distributed.</p>
|
||||
<ul>
|
||||
<li><a href="format.txt">format.txt</a> - The layout of the
|
||||
program.</li>
|
||||
<li><a href="helloworld.txt">helloworld.txt</a> - Hello World,
|
||||
Tetris-style.</li>
|
||||
<li><a href="hilbert.txt">hilbert.txt</a> - A graphic based on the
|
||||
Hilbert curve.</li>
|
||||
<li><a href="ioccc.txt">ioccc.txt</a> - IOCCC.</li>
|
||||
<li><a href="landon.txt">landon.txt</a> - Portrait of a man with
|
||||
glasses.</li>
|
||||
<li><a href="leo.txt">leo.txt</a> - Portrait of a man without
|
||||
glasses.</li>
|
||||
<li><a href="rhino.txt">rhino.txt</a> - A purple rhinoceros.</li>
|
||||
<li><a href="simon.txt">simon.txt</a> - Portrait of a man without
|
||||
hair.</li>
|
||||
</ul>
|
||||
<p>The following files are based on graphics from non-free, copyrighted
|
||||
video games. The use of a limited number of textual representations of
|
||||
the graphics for the demonstration of this program qualifies as fair use
|
||||
as such files do not significantly impede the right of the copyright
|
||||
holder to sell the copyrighted material and it is not being used to
|
||||
generate profit in this context. The origin of each file is detailed
|
||||
below (character, game, company, year).</p>
|
||||
<ul>
|
||||
<li><p><a href="belmont.txt">belmont.txt</a> - <a
|
||||
href="https://en.wikipedia.org/wiki/Simon_Belmont">Simon Belmont</a>, <a
|
||||
href="https://en.wikipedia.org/wiki/Castlevania_(1986_video_game)">Castlevania</a>,
|
||||
<a href="https://en.wikipedia.org/wiki/Konami">Konami</a>,
|
||||
1986.</p></li>
|
||||
<li><p><a href="bloober.txt">bloober.txt</a> - Bloober, <a
|
||||
href="https://www.mariowiki.com/Super_Mario_Bros.">Super Mario
|
||||
Brothers</a>, <a
|
||||
href="https://en.wikipedia.org/wiki/Nintendo">Nintendo</a>,
|
||||
1985.</p></li>
|
||||
<li><p><a href="bomberman.txt">bomberman.txt</a> - <a
|
||||
href="https://en.wikipedia.org/wiki/Bomberman">Bomberman</a>, Bomberman,
|
||||
<a href="https://en.wikipedia.org/wiki/Hudson_Soft">Hudson</a>,
|
||||
1983.</p></li>
|
||||
<li><p><a href="boo.txt">boo.txt</a> - <a
|
||||
href="https://www.mariowiki.com/Boo">Boo</a>, <a
|
||||
href="https://www.mariowiki.com/Super_Mario_Bros._3">Super Mario
|
||||
Brothers 3</a>, Nintendo, 1988.</p></li>
|
||||
<li><p><a href="bub.txt">bub.txt</a> - <a
|
||||
href="https://bubblebobble.fandom.com/wiki/Bub">Bub</a>, <a
|
||||
href="https://en.wikipedia.org/wiki/Bubble_Bobble">Bubble Bobble</a>,
|
||||
Taito, 1986.</p></li>
|
||||
<li><p><a href="cheepcheep.txt">cheepcheep.txt</a> - <a
|
||||
href="https://www.mariowiki.com/Cheep_Cheep">Cheep Cheep</a>, Super
|
||||
Mario Brothers, Nintendo,</p></li>
|
||||
</ul>
|
||||
<ol start="1985" type="1">
|
||||
<li></li>
|
||||
</ol>
|
||||
<ul>
|
||||
<li><p><a href="gurin.txt">gurin.txt</a> - Gurin, <a
|
||||
href="https://en.wikipedia.org/wiki/Binary_Land">Binary Land</a>,
|
||||
Hudson, 1983.</p></li>
|
||||
<li><p><a href="koopaparatroopa.txt">koopaparatroopa.txt</a> - <a
|
||||
href="https://www.mariowiki.com/Koopa_Paratroopa">Koopa Paratroopa</a>,
|
||||
Super Mario Brothers, Nintendo, 1985.</p></li>
|
||||
<li><p><a href="lakitu.txt">lakitu.txt</a> - <a
|
||||
href="https://www.mariowiki.com/Lakitu">Lakitu</a>, Super Mario
|
||||
Brothers, Nintendo, 1985.</p></li>
|
||||
<li><p><a href="mario.txt">mario.txt</a> - <a
|
||||
href="https://www.mariowiki.com/Fire_Mario">Fire Mario</a>, Super Mario
|
||||
Brothers, Nintendo, 1985.</p></li>
|
||||
<li><p><a href="mspacman.txt">mspacman.txt</a> - <a
|
||||
href="https://pacman.fandom.com/wiki/Ms._Pac-Man">Ms. Pac-Man</a> and
|
||||
Ghost, Ms. Pac-Man, <a
|
||||
href="https://en.wikipedia.org/wiki/Midway_Games">Midway</a>,
|
||||
1982.</p></li>
|
||||
<li><p><a href="paranaplant.txt">paranaplant.txt</a> - <a
|
||||
href="https://www.mariowiki.com/Piranha_Plant">Piranha Plant</a>, Super
|
||||
Mario Brothers, Nintendo,</p></li>
|
||||
</ul>
|
||||
<ol start="1985" type="1">
|
||||
<li></li>
|
||||
</ol>
|
||||
<ul>
|
||||
<li><p><a href="samus.txt">samus.txt</a> - <a
|
||||
href="https://metroid.fandom.com/wiki/Samus_Aran">Samus Aran</a>, <a
|
||||
href="https://metroid.fandom.com/wiki/Metroid_(game)">Metroid</a>,
|
||||
Nintendo/<a
|
||||
href="https://en.wikipedia.org/wiki/Intelligent_Systems">Intelligent
|
||||
Systems</a>, 1986.</p></li>
|
||||
<li><p><a href="toad.txt">toad.txt</a> - <a
|
||||
href="https://www.mariowiki.com/Toad">Toad</a>, Super Mario Brothers 2,
|
||||
Nintendo, 1987.</p></li>
|
||||
</ul>
|
||||
<p>The origin of the remaining files are described below:</p>
|
||||
<ul>
|
||||
<li><p><a href="happyface.txt">happyface.txt</a> - Based on a <a
|
||||
href="https://en.wikipedia.org/wiki/Smiley">smiley</a>; original
|
||||
trademark of smiley <a
|
||||
href="https://en.wikipedia.org/wiki/The_Smiley_Company">Smiley
|
||||
Company</a>.</p></li>
|
||||
<li><p><a href="snoo.txt">snoo.txt</a> - 8-bit version of <a
|
||||
href="https://www.reddit.com/r/Snoo/">Snoo</a>, <a
|
||||
href="https://www.reddit.com">Reddit</a>’s alien mascot.</p></li>
|
||||
</ul>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013birken"><a name="inventory"></a>Inventory for
|
||||
2013/birken</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/birken.c">birken.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/birken.alt.c">birken.alt.c</a>
|
||||
- alternative source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/birken.orig.c">birken.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/belmont.txt">belmont.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/bloober.txt">bloober.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/bomberman.txt">bomberman.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/boo.txt">boo.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/bub.txt">bub.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/cheepcheep.txt">cheepcheep.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/format.txt">format.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/gurin.txt">gurin.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/happyface.txt">happyface.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/helloworld.txt">helloworld.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/hilbert.txt">hilbert.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/ioccc.txt">ioccc.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/koopaparatroopa.txt">koopaparatroopa.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/lakitu.txt">lakitu.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/landon.txt">landon.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/leo.txt">leo.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/mario.txt">mario.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/mspacman.txt">mspacman.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a href="names.png">names.png</a> - sprites in this textual
|
||||
format</li>
|
||||
<li><a href="palette.png">palette.png</a> - sprites in this textual
|
||||
format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/paranaplant.txt">paranaplant.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/rhino.txt">rhino.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a href="rotations.png">rotations.png</a> - sprites in this textual
|
||||
format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/samus.txt">samus.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/simon.txt">simon.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/snoo.txt">snoo.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/toad.txt">toad.txt</a>
|
||||
- sprites in this textual format</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/try.alt.sh">try.alt.sh</a>
|
||||
- how to run alternative code</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a href="2013_birken.tar.bz2">2013_birken.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/birken/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
<li><a href="multi2.gif">multi2.gif</a> - stages of multi-square
|
||||
emitters</li>
|
||||
<li><a href="multi3.gif">multi3.gif</a> - stages showing multi-square
|
||||
emitters</li>
|
||||
<li><a href="multi4.gif">multi4.gif</a> - stages showing multi-square
|
||||
emitters</li>
|
||||
<li><a href="multi5.gif">multi5.gif</a> - stages of multi-square
|
||||
emitters</li>
|
||||
<li><a href="pen0.gif">pen0.gif</a> - stages of single square rotruding
|
||||
from the bottom</li>
|
||||
<li><a href="pen1.gif">pen1.gif</a> - stages of single square rotruding
|
||||
from the bottom</li>
|
||||
<li><a href="pen2.gif">pen2.gif</a> - stages of single square rotruding
|
||||
from the bottom</li>
|
||||
<li><a href="pen4.gif">pen4.gif</a> - stages of single square rotruding
|
||||
from the bottom</li>
|
||||
<li><a href="pen5.gif">pen5.gif</a> - stages of single square rotruding
|
||||
from the bottom</li>
|
||||
<li><a href="pen6.gif">pen6.gif</a> - stages of single square rotruding
|
||||
from the bottom</li>
|
||||
<li><a href="pen7.gif">pen7.gif</a> - stages of single square rotruding
|
||||
from the bottom</li>
|
||||
<li><a href="pen8.gif">pen8.gif</a> - stages of single square rotruding
|
||||
from the bottom</li>
|
||||
<li><a href="platform0.gif">platform0.gif</a> - stages of 5 red squares
|
||||
above a row of 3 red squares</li>
|
||||
<li><a href="platform1.gif">platform1.gif</a> - stages of 5 red squares
|
||||
above a row of 3 red squares</li>
|
||||
<li><a href="platform2.gif">platform2.gif</a> - stages of 5 red squares
|
||||
above a row of 3 red squares</li>
|
||||
<li><a href="triple0.gif">triple0.gif</a> - stages of constructed of
|
||||
rectangular regions</li>
|
||||
<li><a href="triple1.gif">triple1.gif</a> - stages of constructed of
|
||||
rectangular regions</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fbirken%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+245
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,257 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/cable1/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 cable1</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: cable1 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,cable1,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/cable1</title>
|
||||
<meta name="description" content="2013 IOCCC winner cable1">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, cable1">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 cable1</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/cable1</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fcable1%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/cable1/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../birken/index.html">← birken</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../cable2/index.html">cable2 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Adrian_Cable">Adrian Cable</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#US">US</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable1</span> name group1 group2</span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>Partisan may be defined as a strong supporter of a cause, party or
|
||||
person. We need not limit ourselves to the two major political parties
|
||||
in the US today.</p>
|
||||
<p>Let us consider:</p>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable1</span> Cooper Mac PC</span></code></pre></div>
|
||||
<p>Simon works for Apple, so you would expect Mac. :-) Landon is a long
|
||||
time Mac user:</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable1</span> Noll Mac PC</span></code></pre></div>
|
||||
<p>That works too! Now Leo brings PCs to the IOCCC judging for
|
||||
cross-platform testing:</p>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable1</span> Broukhis Mac PC</span></code></pre></div>
|
||||
<p>We can test other people. The late Steve Jobs:</p>
|
||||
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable1</span> Jobs Mac PC</span></code></pre></div>
|
||||
<p>That works! How about Bill?</p>
|
||||
<div class="sourceCode" id="cb8"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable1</span> Gates Mac PC</span></code></pre></div>
|
||||
<p>A PC guy as expected. What about that other Steve?</p>
|
||||
<div class="sourceCode" id="cb9"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable1</span> Ballmer Mac PC</span></code></pre></div>
|
||||
<p>Humm .. maybe there is a hidden reason he is leaving the late
|
||||
Micro$oft? :-) Why late? Because:</p>
|
||||
<figure>
|
||||
<img src="dead-ms-tweet.jpg" alt="tweet about M$ being dead" />
|
||||
<figcaption aria-hidden="true">tweet about M$ being dead</figcaption>
|
||||
</figure>
|
||||
<p>-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- An important 2023
|
||||
update about twitter:</p>
|
||||
<p>The IOCCC no longer uses twitter. Today the IOCCC uses Mastodon. For
|
||||
more information and to see our IOCCC Mastodon posts, see:</p>
|
||||
<pre><code>https://fosstodon.org/@ioccc</code></pre>
|
||||
<p>End of important 2023 update to this historic note.
|
||||
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-</p>
|
||||
<p>So how does a one line C source know so much? Hint: it doesn’t.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="presidents-of-the-united-states-of-america">Presidents of the
|
||||
United States of America!</h3>
|
||||
<p>Politics is full of memorable <a
|
||||
href="https://rationalwiki.org/wiki/Politics#Famous_quotes">one-liners</a>.
|
||||
Without wishing to <a
|
||||
href="https://www.youtube.com/watch?v=JhmdEq3JhoY">misunderestimate</a>
|
||||
the taste of the judges, nor prejudge the past, the author hopes you
|
||||
enjoy this contribution to the genre.</p>
|
||||
<p>This one-line C program accepts as a first command-line argument the
|
||||
last name of any of the last 31 US Presidents (from Franklin Pierce
|
||||
onwards), in lower case, and prints out their political affiliation.</p>
|
||||
<p>Use <code>republican</code> as the 2nd command-line argument, and
|
||||
<code>democrat</code> as the 3rd (or equivalent strings of your
|
||||
choice).</p>
|
||||
<h3 id="why-is-this-entry-obfuscatedinteresting">Why is this entry
|
||||
obfuscated/interesting?</h3>
|
||||
<p>The program looks up the name supplied on the command line against a
|
||||
list of Presidents’ names, and matches names to political affiliations
|
||||
using a look-up table. But where in the source is the list of names, and
|
||||
where is the look-up table?</p>
|
||||
<h3 id="notes">Notes</h3>
|
||||
<ul>
|
||||
<li><p>For Theodore Roosevelt, use:
|
||||
<code>./cable1 roosevelt republican democrat</code>.</p></li>
|
||||
<li><p>But, for Franklin D Roosevelt, use:
|
||||
<code>./cable1 fdr republican democrat</code>.</p></li>
|
||||
<li><p>This program needs a little endian CPU to work properly.</p></li>
|
||||
</ul>
|
||||
<h3 id="compiler-warnings">Compiler warnings</h3>
|
||||
<p><code>clang</code> warns about a missing type specifier for
|
||||
<code>main()</code>, and that implicit function declarations are invalid
|
||||
in C99 (but still accepts them).</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013cable1"><a name="inventory"></a>Inventory for
|
||||
2013/cable1</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable1/cable1.c">cable1.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable1/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable1/cable1.orig.c">cable1.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a href="dead-ms-tweet.jpg">dead-ms-tweet.jpg</a> - tweet image</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable1/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a href="2013_cable1.tar.bz2">2013_cable1.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable1/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable1/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable1/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fcable1%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+301
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,313 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/cable2/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 cable2</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: cable2 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,cable2,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/cable2</title>
|
||||
<meta name="description" content="2013 IOCCC winner cable2">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, cable2">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 cable2</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/cable2</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fcable2%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/cable2/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../cable1/index.html">← cable1</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../cable3/index.html">cable3 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Adrian_Cable">Adrian Cable</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#US">US</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
|
||||
<p>The current status of this entry is:</p>
|
||||
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
|
||||
<p>For more detailed information see <a href="/bugs.md#2013-cable2">2013
|
||||
cable2 in bugs.md</a>.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable2</span> file.bmp <span class="pp">[</span><span class="ss">color</span><span class="pp">]</span></span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<p>For different OCR examples:</p>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>We can confirm that this is the first time the IOCCC has been used to
|
||||
peer-review a new research. We had quite a bit of fun with a sharpie and
|
||||
a scanner.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="ocr---obfuscated-character-recognition-of-handwritten-text">OCR
|
||||
- Obfuscated Character Recognition of Handwritten Text</h3>
|
||||
<p>This entry takes a BMP image file of hand-drawn (mouse-drawn?) text,
|
||||
specified as the first command-line parameter, and converts it to an
|
||||
ASCII text document. Magic!</p>
|
||||
<p>BMP files created by most paint programs should work. The author
|
||||
recommends Paint.NET.</p>
|
||||
<h3 id="features">Features</h3>
|
||||
<ul>
|
||||
<li>Every printable ASCII character is recognized (94 characters plus
|
||||
space), plus a special bonus character.</li>
|
||||
<li>Input images can be any size (limited only by memory), containing
|
||||
any number of lines of text.</li>
|
||||
<li>BMP is really a mess of different formats, but the program supports
|
||||
most of them from Windows 3.1 and later.</li>
|
||||
<li>Hand-drawn characters in the input image can be variably spaced and
|
||||
positioned and be of any width or height, but the bigger the better for
|
||||
accurate recognition (300 pixels tall or more is recommended).
|
||||
Characters must be drawn with a stroke width of around 9 pixels, and
|
||||
separated from adjacent characters. (In Paint.NET a brush of width 9
|
||||
works well, with anti-aliasing turned off.)</li>
|
||||
<li>You can use any colors you like for the text and background, even
|
||||
different colors for different text characters.</li>
|
||||
<li>If “color” is specified as the second command line parameter, the
|
||||
program’s output will also be in color, on ANSI/VTxxx terminals.</li>
|
||||
</ul>
|
||||
<h3 id="why-is-this-entry-obfuscatedinteresting">Why is this entry
|
||||
obfuscated/interesting?</h3>
|
||||
<ul>
|
||||
<li>The source is presented as a beautiful moonlit scene, in which a
|
||||
quick brown fox jumps over a lazy dog. Far too often in software
|
||||
development is aesthetic nuance lost in the name of serious-sounding
|
||||
conventions like “GNU style”, but not here.</li>
|
||||
<li>Newcomers to C find it hard to learn all those different ways to
|
||||
control flow: <code>for</code>, <code>while</code>, <code>if</code>,
|
||||
<code>do</code>, <code>goto</code>, <code>continue</code>,
|
||||
<code>break</code> and heaven knows what else! So, in this program we
|
||||
only use <code>for</code>, so absolute beginners can get into the code
|
||||
straight away.</li>
|
||||
<li>To teach newcomers all the important features of C, we demonstrate
|
||||
the importance of the liberal use of short circuits, sequence points,
|
||||
the ternary operator, using <code>x^y</code> or <code>x-y</code> instead
|
||||
of <code>x!=y</code>, using <code>~x</code> in place of
|
||||
<code>x!=-1</code> for conciseness, mixing <code>x[y]</code> and
|
||||
<code>y[x]</code> for variety, educational <code>#define</code>s, and so
|
||||
on.</li>
|
||||
<li><code>main()</code> is the most useful function in all of C - so it
|
||||
is a mystery to the author why most programs use it only once. Here we
|
||||
use it over and over for maximum benefit.</li>
|
||||
<li>The number <a href="https://hitchhikers.fandom.com/wiki/42">42</a>
|
||||
is featured in the source to provide an answer to the judges’ deeper
|
||||
questions.</li>
|
||||
<li>How are character colors converted from RGB in the input image to
|
||||
ANSI escape sequences? Clue: the weird macro <code>P</code> does the
|
||||
interesting part of it, but how?</li>
|
||||
<li>The program prints a string when the bonus character is detected.
|
||||
How does it do this? Clue: the string to print is defined in the macro
|
||||
<code>$</code>, but how can a string defined in that way ever get
|
||||
printed?</li>
|
||||
</ul>
|
||||
<h3 id="other-notes">Other notes</h3>
|
||||
<ul>
|
||||
<li>The novel character recognition algorithm used has not been
|
||||
previously published and was developed by the author specifically for
|
||||
the contest. Should this entry win the IOCCC, it will be the first time
|
||||
(to the author’s knowledge) that the IOCCC has been used for peer
|
||||
review/publication of original research.</li>
|
||||
<li>OCR in general is a hard problem. Here, we only recognise one
|
||||
possible form for each character. You can see what the supported
|
||||
character shapes look like by looking at the examples in <a
|
||||
href="ascii.bmp">ascii.bmp</a>. If you copy the shape of the character
|
||||
forms you find in there, recognition accuracy should be very good
|
||||
(95%+). A more “useful” version would extend the character stroke table
|
||||
to support multiple different commonly-used forms for each
|
||||
character.</li>
|
||||
<li>Despite being the largest possible IOCCC entry at 4096 bytes, it is
|
||||
also probably the smallest general-purpose OCR program ever written
|
||||
(including the character stroke data), maybe by several orders of
|
||||
magnitude.</li>
|
||||
<li>The author used an interesting compression algorithm (suggested by
|
||||
Gareth McCaughan - thank you!) to squeeze the character stroke table
|
||||
(containing around 2000 strokes for the whole ASCII character set) into
|
||||
a string constant of just 472 characters.</li>
|
||||
</ul>
|
||||
<h3 id="bugsfeatures">Bugs/features</h3>
|
||||
<ul>
|
||||
<li>The width of input images must be a multiple of 4.</li>
|
||||
<li>Input images can be 8-bit greyscale, 24-bit color or 32-bit color
|
||||
only. 8-bit color and 16-bit color are not supported. If you use the
|
||||
“color” command-line feature, do not use a greyscale input file!</li>
|
||||
<li>Normal Windows BMP files are stored “upside-down”, i.e. the bottom
|
||||
line in the image is written first. Some (old) graphics programs
|
||||
actually write BMP files “top-to-bottom” and the program does not
|
||||
support such files.</li>
|
||||
<li>Using anti-aliased brush strokes to draw your letters is fine;
|
||||
however, antialiasing interferes with color detection in “color”
|
||||
mode.</li>
|
||||
<li>Only runs on little endian machines (since the BMP format is little
|
||||
endian, and endianness conversion would make the source too large for
|
||||
IOCCC rule 2).</li>
|
||||
</ul>
|
||||
<h3 id="compiler-warnings">Compiler warnings</h3>
|
||||
<p><code>clang</code> warns about unused expression results, missing
|
||||
type specifiers, and incompatible pointer conversions - all just a fun
|
||||
consequence of the obfuscations.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013cable2"><a name="inventory"></a>Inventory for
|
||||
2013/cable2</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable2/cable2.c">cable2.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable2/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable2/cable2.orig.c">cable2.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable2/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a href="ascii.bmp">ascii.bmp</a> - PC bitmap image</li>
|
||||
<li><a href="bonus.bmp">bonus.bmp</a> - PC bitmap image</li>
|
||||
<li><a href="hello_world.bmp">hello_world.bmp</a> - PC bitmap image</li>
|
||||
<li><a href="mixed_sizes.bmp">mixed_sizes.bmp</a> - PC bitmap image</li>
|
||||
<li><a href="multi_color.bmp">multi_color.bmp</a> - PC bitmap image</li>
|
||||
<li><a href="typeset.bmp">typeset.bmp</a> - PC bitmap image</li>
|
||||
<li><a href="2013_cable2.tar.bz2">2013_cable2.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable2/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable2/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable2/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fcable2%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+622
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,634 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/cable3/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 cable3</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: cable3 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,cable3,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/cable3</title>
|
||||
<meta name="description" content="2013 IOCCC winner cable3">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, cable3">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 cable3</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/cable3</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fcable3%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/cable3/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../cable2/index.html">← cable2</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../dlowe/index.html">dlowe →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Adrian_Cable">Adrian Cable</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#US">US</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<p>An alternate version that should compile in Windows/MS Visual Studio
|
||||
is available. See the <a href="#alternate-code">Alternate code</a>
|
||||
section below.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable3</span> bios-image-file floppy-image-file <span class="pp">[</span><span class="ss">harddisk</span><span class="pp">-</span><span class="ss">image</span><span class="pp">-</span><span class="ss">file</span><span class="pp">]</span></span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./runme</span></span></code></pre></div>
|
||||
<p>NOTE: to quit the program type <code>QUITEMU</code>. You might have
|
||||
to be at the top level directory of the drive, <code>A:</code> or
|
||||
<code>C:</code>.</p>
|
||||
<p>To send an <code>Alt+XXX</code> key combination, press
|
||||
(<code>^A</code> / <code>Ctrl+A</code>) then the key, so for example to
|
||||
type <code>Alt+F</code>, press (<code>^A</code> / <code>Ctrl+A</code>)
|
||||
then <code>F</code>.</p>
|
||||
<p>To send an <code>Fxx</code> key, press <code>^F</code> /
|
||||
<code>Ctrl+F</code> then a number key. For example, to get the
|
||||
<code>F4</code> key, press <code>^F</code> / <code>Ctrl+F</code> then
|
||||
<code>4</code>. To get <code>F10</code>, press <code>^F</code> /
|
||||
<code>Ctrl+F</code> then <code>0</code>.</p>
|
||||
<p>To send a <code>Page Down</code> key, press <code>^F</code> /
|
||||
<code>Ctrl+F</code> then <code>O</code> (letter O, not digit zero). To
|
||||
send a <code>Page Up</code> key, press <code>^F</code> /
|
||||
<code>Ctrl+F</code> then <code>E</code>. Other key combinations are left
|
||||
for the discovery of the user.</p>
|
||||
<h2 id="alternate-code">Alternate code:</h2>
|
||||
<p>An alternate version, which should compile in Windows, is
|
||||
provided.</p>
|
||||
<h3 id="alternate-build">Alternate build:</h3>
|
||||
<p>Assuming <code>make</code> is available and will function:</p>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> alt</span></code></pre></div>
|
||||
<h3 id="alternate-use">Alternate use:</h3>
|
||||
<p>Use <code>cable3.alt</code> as you would <code>cable3</code>
|
||||
above.</p>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>This entry weighs in at a magical 4043 bytes (8086 nibbles, 28,301
|
||||
bits). It manages to implement most of the hardware in a 1980’s era
|
||||
IBM-PC using a few hundred fewer bits than the total number of
|
||||
transistors used to implement the original 8086 CPU.</p>
|
||||
<p>If you are using macOS, the included <a
|
||||
href="sc-ioccc.terminal">sc-ioccc.terminal</a> configuration file will
|
||||
correctly display console applications that use ANSI graphics.</p>
|
||||
<p>NOTE: the author remarked that in some systems one might need to
|
||||
<code>#include <unistd.h></code>. This has been done in the entry
|
||||
but not the alternate version. This should not affect the usability of
|
||||
the program but will trigger a warning which we have disabled in the
|
||||
Makefile.</p>
|
||||
<p>Update: This entry now has its own website: <a
|
||||
href="https://github.com/adriancable/8086tiny"
|
||||
class="uri">https://github.com/adriancable/8086tiny</a></p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="a-tiny-but-highly-functional-pc-emulatorvirtual-machine">A tiny
|
||||
but highly functional PC emulator/virtual machine</h3>
|
||||
<p>The author hereby presents, for the delectation (?) of the judges, a
|
||||
portable PC emulator/VM written specifically for the IOCCC which runs
|
||||
DOS, Windows 3.0, Excel, MS Flight Simulator, AutoCAD, Lotus 1-2-3 …</p>
|
||||
<p>In just 4043 bytes of C source, you get a complete mid-late 1980s-era
|
||||
IBM-compatible PC, consisting of:</p>
|
||||
<ul>
|
||||
<li>Intel 8086/186 CPU</li>
|
||||
<li>1MB RAM</li>
|
||||
<li>8072A 3.5” floppy disk controller (1.44MB/720KB)</li>
|
||||
<li>Fixed disk controller (supports a single hard drive up to
|
||||
528MB)</li>
|
||||
<li>Hercules graphics card with 720x348 2-color graphics (64KB video
|
||||
RAM), and <a
|
||||
href="https://en.wikipedia.org/wiki/Color_Graphics_Adapter">CGA</a>
|
||||
80x25 16-color text mode support</li>
|
||||
<li>8253 programmable interval timer (PIT)</li>
|
||||
<li>8259 programmable interrupt controller (PIC)</li>
|
||||
<li>8042 keyboard controller with 83-key XT-style keyboard</li>
|
||||
<li>MC146818 real-time clock</li>
|
||||
<li>PC speaker</li>
|
||||
</ul>
|
||||
<p>The emulator uses the <a href="https://www.libsdl.org">SDL graphics
|
||||
library</a> for portability, and compiles for Windows, macOS, Linux and
|
||||
probably most other 32-bit/64-bit systems too.</p>
|
||||
<p>If you like living on the edge you can try building the emulator on a
|
||||
big endian machine, and you will get an emulation of a big endian 8086,
|
||||
a rather bizarre and somewhat useless beast. For everyone else, please
|
||||
run the emulator on a little endian machine.</p>
|
||||
<h3 id="rule-2-abuse-disclaimer">RULE 2 ABUSE DISCLAIMER</h3>
|
||||
<ul>
|
||||
<li><a href="cable3.c">cable3.c</a> is 4043 bytes in length (half an
|
||||
8086).</li>
|
||||
<li><code>iocccsize -i < cable3.c</code> returns 1977 (the year the
|
||||
4.77 MHz 8086 CPU was announced)</li>
|
||||
<li>Therefore, any suspicions the judges may have regarding rule 2
|
||||
non-compliance might be well-intentioned but are groundless.</li>
|
||||
<li>Nonetheless, the author would like to apologise to the judges for
|
||||
the one-big-block-of-code nature of this entry, which turned out to be
|
||||
unavoidable. Hopefully the joys of this entry will make up for its
|
||||
shortcomings.</li>
|
||||
</ul>
|
||||
<h3 id="why-is-this-entry-obfuscatedinteresting">Why is this entry
|
||||
obfuscated/interesting?</h3>
|
||||
<ul>
|
||||
<li>First of all the 8086 is a nightmare processor to emulate.
|
||||
Instruction codings are complex and irregular in size and structure,
|
||||
with multiple addressing modes and no consistent memory placement for
|
||||
operands, very often multiple possible encodings for the same
|
||||
instruction, and the bizarre segment:offset memory model. In addition,
|
||||
the 8086 has a number of bugs (e.g. PUSH SP), undocumented behaviours
|
||||
and instructions (e.g. AAM/AAD + imm8, SALC, flag behaviour for MUL/DIV,
|
||||
etc. etc.), and archaic features (e.g. parity/auxiliary flags) which all
|
||||
need to be emulated properly. Here we emulate every feature of the CPU
|
||||
pretty exactly (in fact better than most commercial clones of the
|
||||
processor e.g. the NEC V30), with the exception of the trap flag which
|
||||
no real software uses except for debuggers (although support for the TF
|
||||
can be added if deemed important, without exceeding the IOCCC size
|
||||
limit).</li>
|
||||
<li>In addition to the CPU we also emulate all the standard PC
|
||||
peripheral hardware. Parts of it are somewhat complete, much is rather
|
||||
dysfunctional (like the 8253/8259) but enough to support most real
|
||||
software.</li>
|
||||
<li>Nonetheless the source, while large for the IOCCC, is rather tiny
|
||||
for a functional PC emulator - around 2% of the size of the source of
|
||||
other open-source 8086 PC emulators with comparable functionality.</li>
|
||||
<li>In fact, this entry is just like happy hour - at 4043 bytes long,
|
||||
you pay for half the 8086, but you get served the whole one.</li>
|
||||
<li>Getting the code down to <= 4096 characters to meet the IOCCC
|
||||
rule 2 overall size limit required a good deal of effort (and
|
||||
appreciable risk of divorce), with obfuscation being a pretty
|
||||
unavoidable consequence in most places … for the rest, I use short
|
||||
circuit operators whenever possible, mix <code>x[y]</code> and
|
||||
<code>y[x]</code>, don’t use any flow control keywords except for
|
||||
<code>for</code>, use K&R-style declarations to honor the C
|
||||
language’s rich cultural heritage (plus it saves a byte), and
|
||||
occasionally go overboard with nasty nested indexes to give things like
|
||||
this:
|
||||
<code>--64[T=1[O=32[L=(X=*Y&7)&1,o=X/2&1,l]=0,t=(c=y)&7,a=c/8&7,Y]>>6,g=~-T?y:(n)y,d=BX=y,l]</code>.</li>
|
||||
<li>This entry highlights the importance of comments in C.</li>
|
||||
<li>This entry might result in an adjustment to the IOCCC size tool for
|
||||
the 2014 competition (see above).</li>
|
||||
</ul>
|
||||
<h3 id="compiling-on-different-platforms">Compiling on different
|
||||
platforms</h3>
|
||||
<p>This entry has been tested on Windows (compiled with MS Visual Studio
|
||||
2010 and 2013), Mac OS X (clang and gcc), and Linux (clang and gcc). The
|
||||
Makefile supplied is good for Mac OS X, Linux and probably other Unices.
|
||||
I have received reports that the emulator works on Raspberry
|
||||
Pi/Android/ARM (you will need to compile with
|
||||
<code>-fsigned-char</code>) and iOS. You will need to adjust the <a
|
||||
href="Makefile">Makefile</a> if your system lacks
|
||||
<code>sdl-config</code> to correctly point to the SDL libraries and
|
||||
header files.</p>
|
||||
<p>On UNIX-based systems we can get raw keystrokes using
|
||||
<code>stty</code>. However Windows has no <code>stty</code>. Therefore
|
||||
the Makefile includes a <code>-D</code> option to define a “keyboard
|
||||
driver” <code>KB</code> which as it stands is suitable for Unices, but
|
||||
maybe not non-UNIX platforms. For example, for Windows/MS Visual Studio,
|
||||
instead of the Makefile definition of KB, use something slightly
|
||||
different - add the following entry to the Preprocessor Definitions list
|
||||
in the Project Properties page:</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>KB<span class="op">=(</span>kb<span class="op">=</span>H<span class="op">(</span><span class="dv">8</span><span class="op">),</span>kbhit<span class="op">())&&(</span>r<span class="op">[</span><span class="dv">1190</span><span class="op">]=</span>getch<span class="op">(),</span>H<span class="op">(</span><span class="dv">7</span><span class="op">))</span></span></code></pre></div>
|
||||
<p>NOTE: this is done in the <a href="#alternate-code">Alternate
|
||||
code</a>.</p>
|
||||
<h3 id="posix-portability-note">POSIX portability note</h3>
|
||||
<p>The code as supplied uses implicit function declarations for POSIX
|
||||
file I/O and in doing so assumes that file offsets are the same bit
|
||||
width as your architecture. For some systems (e.g. 32-bit Mac OS X,
|
||||
which uses 64-bit file offsets) this is not the case, and to run
|
||||
successfully on these systems, you will need to explicitly declare these
|
||||
functions by adding the appropriate include to the top of the
|
||||
source:</p>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="pp">#include </span><span class="im"><unistd.h></span></span></code></pre></div>
|
||||
<p>NOTE: this has been done in <a href="cable3.c">cable3.c</a>.</p>
|
||||
<h3 id="usage">Usage</h3>
|
||||
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable3</span> bios-image-file floppy-image-file <span class="pp">[</span><span class="ss">harddisk</span><span class="pp">-</span><span class="ss">image</span><span class="pp">-</span><span class="ss">file</span><span class="pp">]</span></span></code></pre></div>
|
||||
<p>PLEASE NOTE that under Unices the keyboard must be in raw mode for
|
||||
the emulator to work properly. Therefore the emulator is best run from a
|
||||
shell script that looks something like:</p>
|
||||
<div class="sourceCode" id="cb8"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="fu">stty</span> cbreak raw <span class="at">-echo</span> min 0</span>
|
||||
<span id="cb8-2"><a href="#cb8-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable3</span> bios floppy.img harddisk.img</span>
|
||||
<span id="cb8-3"><a href="#cb8-3" aria-hidden="true" tabindex="-1"></a><span class="fu">stty</span> cooked echo</span></code></pre></div>
|
||||
<p>See the <a href="runme">runme</a> script.</p>
|
||||
<h2 id="to-use-the-emulator---floppy-mode-only">To use the emulator -
|
||||
floppy mode only</h2>
|
||||
<p>The simplest use of the emulator is with a single floppy boot disk
|
||||
image, like the <code>fd.img</code> provided, which is a FreeDOS boot
|
||||
disk.</p>
|
||||
<p>Before running the emulator on a Unix-type system, <code>stty</code>
|
||||
needs to be used to put the keyboard into raw mode (and afterwards it
|
||||
needs to be put back to cooked). So, run the emulator using something
|
||||
like this script (provided as <a href="runme">runme</a>):</p>
|
||||
<div class="sourceCode" id="cb9"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="fu">stty</span> cbreak raw <span class="at">-echo</span> min 0</span>
|
||||
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable3</span> bios fd.img</span>
|
||||
<span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a><span class="fu">stty</span> cooked echo</span></code></pre></div>
|
||||
<h2 id="to-use-the-emulator---floppy-hd-mode">To use the emulator -
|
||||
floppy + HD mode</h2>
|
||||
<p>Easiest to start with is to try a ready-made 40MB hard disk image
|
||||
containing a whole bunch of software which is in the included file
|
||||
<code>hd.img</code>.</p>
|
||||
<p>For the more adventurous, you can start off with (for example) a
|
||||
blank 40MB image file called hd.img made using e.g. Makefile. Then
|
||||
use:</p>
|
||||
<div class="sourceCode" id="cb10"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="fu">stty</span> cbreak raw <span class="at">-echo</span> min 0</span>
|
||||
<span id="cb10-2"><a href="#cb10-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./cable3</span> bios fd.img hd.img</span>
|
||||
<span id="cb10-3"><a href="#cb10-3" aria-hidden="true" tabindex="-1"></a><span class="fu">stty</span> cooked echo</span></code></pre></div>
|
||||
<p>Preparing the hard disk for use in the emulator is done just like a
|
||||
real PC. Boot the emulator, and use <code>FDISK</code> to partition the
|
||||
hard disk. When it’s done <code>FDISK</code> will reboot the emulator.
|
||||
Then you can use <code>FORMAT C:</code> and you are done. The resulting
|
||||
disk image is in the right format to be mounted on a real Windows PC
|
||||
using e.g. <code>OSFMount</code> (Windows), <code>hdiutil</code>
|
||||
(macOS), or <code>mount</code> (linux/unix), providing an easy way to
|
||||
copy files and programs to and from the disk image. Or, you can install
|
||||
programs from regular floppy disk images (see <a
|
||||
href="#floppy-disk-support">Floppy disk support</a> below).</p>
|
||||
<h3 id="keyboard-emulation">Keyboard emulation</h3>
|
||||
<p>The emulator emulates an XT-style keyboard controlled by an Intel
|
||||
8042 chip on I/O port 0x60, generating IRQ1 and then interrupt 9 on each
|
||||
key press. This is harder than it sounds because a real 8042 returns
|
||||
scan codes rather than the ASCII characters which the C standard I/O
|
||||
functions return. Rather than make the emulator less portable and use
|
||||
<code>ioctl(2)</code> or platform-dependent equivalents to obtain real
|
||||
scan codes from the keyboard, the emulator BIOS does the reverse of a
|
||||
real PC BIOS and converts ASCII characters to scan codes, simulating
|
||||
depress/release of the modifier keys (e.g. shift) as necessary to work
|
||||
like a “real” keyboard. The OS (DOS/Windows) then converts them back to
|
||||
ASCII characters and although this process normally works seamlessly
|
||||
don’t be surprised if there are issues, for example, with non-QWERTY
|
||||
e.g. international keyboards.</p>
|
||||
<p>Most of the time you can just type normally, but there are special
|
||||
sequences to get <code>Alt+xxx</code> and <code>Fxxx</code>.</p>
|
||||
<p>To send an <code>Alt+XXX</code> key combination, press
|
||||
(<code>^A</code> / <code>Ctrl+A</code>) then the key, so for example to
|
||||
type <code>Alt+F</code>, press (<code>^A</code> / <code>Ctrl+A</code>)
|
||||
then <code>F</code>.</p>
|
||||
<p>To send an <code>Fxx</code> key, press <code>^F</code> /
|
||||
<code>Ctrl+F</code> then a number key. For example, to get the
|
||||
<code>F4</code> key, press <code>^F</code> / <code>Ctrl+F</code> then
|
||||
<code>4</code>. To get <code>F10</code>, press <code>^F</code> /
|
||||
<code>Ctrl+F</code> then <code>0</code>.</p>
|
||||
<p>To send a <code>Page Down</code> key, press <code>^F</code> /
|
||||
<code>Ctrl+F</code> then <code>O</code> (letter O, not digit zero). To
|
||||
send a <code>Page Up</code> key, press <code>^F</code> /
|
||||
<code>Ctrl+F</code> then <code>E</code>. Other key combinations are left
|
||||
for the discovery of the user.</p>
|
||||
<h3 id="text-mode-support">Text mode support</h3>
|
||||
<p>The emulator supports both text output via the standard BIOS
|
||||
interrupt 0x10 interface, and also direct video memory access (one page,
|
||||
4KB video RAM at segment <code>B800</code>) in
|
||||
<code>80x25 CGA 16-color</code> text mode.</p>
|
||||
<p>BIOS text output calls are converted to simple writes to
|
||||
<code>stdout</code>. Direct video memory accesses for the
|
||||
<code>80x25 CGA color</code> text mode are converted to ANSI terminal
|
||||
escape sequences. If you are using a terminal which does not support
|
||||
ANSI (e.g. you are compiling the emulator with <code>MS VC++</code> and
|
||||
running in a Windows console window) then PC applications that directly
|
||||
write to video memory in text mode might be unusable.</p>
|
||||
<p>Most <code>CGA I/O</code> ports are not supported except for the
|
||||
<code>CGA refresh</code> register at <code>0x3DA</code>, which some
|
||||
applications use for timing or synchronisation.</p>
|
||||
<p>The regular PC character code page (<code>437</code>) includes
|
||||
various extended ASCII characters for things like line drawing. You
|
||||
might want to set the font in your terminal program to something that
|
||||
includes these (e.g. on Mac OS X there is a freeware font called <a
|
||||
href="https://www.dafont.com/perfect-dos-vga-437.font">Perfect DOS VGA
|
||||
437</a> which does the trick).</p>
|
||||
<p>Occasionally a DOS application on exit will leave the video hardware
|
||||
in an odd state which confuses the emulator, resulting in subsequent
|
||||
text output being invisible. If this happens, just use the DOS
|
||||
<code>CLS</code> command to clear the screen and all will be well
|
||||
again.</p>
|
||||
<h3 id="graphics-mode-support">Graphics mode support</h3>
|
||||
<p><a
|
||||
href="https://en.wikipedia.org/wiki/Hercules_Graphics_Card">Hercules
|
||||
720x348 monochrome graphics mode</a> emulation is implemented using SDL.
|
||||
Most Hercules features are supported via the normal I/O interface on
|
||||
ports <code>0x3B8</code> and <code>0x3BA</code> including video memory
|
||||
bank switching (segments <code>B000</code>/<code>B800</code>), which
|
||||
some games use for double-buffered graphics. CGA graphics modes are not
|
||||
supported.</p>
|
||||
<p>When an application enters graphics mode, the emulator will open an
|
||||
SDL window (which will be closed when the application goes back to text
|
||||
mode). Including code to redirect keystrokes from the SDL window to the
|
||||
main terminal window would have busted the IOCCC size limits, so you
|
||||
need to keep the main emulator terminal window in focus at all times
|
||||
even when you are doing graphics (sounds a little odd but you will get
|
||||
used to it).</p>
|
||||
<p>On Unices, SDL will automatically output graphics via X11 if the
|
||||
DISPLAY environment variable is set up.</p>
|
||||
<h3 id="dual-graphics-card-support">Dual graphics card support</h3>
|
||||
<p>Some applications (e.g. AutoCAD) support a PC configuration with a
|
||||
CGA card and a Hercules card, for simultaneous text and graphics output
|
||||
on different displays. The emulator simulates this configuration, too,
|
||||
using separate windows for the (terminal) text and (SDL) graphics
|
||||
displays.</p>
|
||||
<h3 id="bios">BIOS</h3>
|
||||
<p>Like a real PC, the emulator needs a BIOS to do anything useful. Here
|
||||
we use a custom BIOS, written from scratch specifically for the
|
||||
emulator. Source code for the BIOS (written in 8086 assembly language)
|
||||
which compiles with the freely-available NASM x86 assembler is in <a
|
||||
href="bios.asm">bios.asm</a>.</p>
|
||||
<p>The BIOS implements the standard interrupt interfaces for video,
|
||||
disk, timer, clock and so on, much as a “real” PC BIOS does, and also a
|
||||
small timer-controlled video driver to convert video memory formatting
|
||||
into ANSI escape sequences when the emulator is in text mode.</p>
|
||||
<h3 id="cpu-and-memory-emulation">CPU and memory emulation</h3>
|
||||
<p>Memory map is largely as per a real PC, with interrupt vector table
|
||||
at <code>0:0</code>, BIOS data area including keyboard buffer at
|
||||
<code>40:0</code>, CGA text video memory at <code>B800:0</code>,
|
||||
Hercules dual-bank graphics memory at
|
||||
<code>B000</code>/<code>B800:0</code>, and BIOS at
|
||||
<code>F000:100</code>. Unlike a real PC, in the emulator the CPU
|
||||
registers are memory-mapped (at <code>F000:0</code>), which enables
|
||||
considerable optimisation of the emulator’s instruction execution unit
|
||||
by permitting the unification of memory and register operations, while
|
||||
remaining invisible to the running software.</p>
|
||||
<p>The CPU supports the full 8086/186 instruction set. Due to the
|
||||
complexities of the 8086’s arbitrary-length instruction decoding and
|
||||
flags, 8086 instructions are first converted to a simpler intermediate
|
||||
format before being executed. This conversion, along with instruction
|
||||
lengths and how each instruction modifies the flags, is assisted by some
|
||||
lookup tables which form part of the BIOS binary.</p>
|
||||
<p>The CPU also implements some “special” two-byte opcodes to help the
|
||||
emulator talk with the outside world. These are:</p>
|
||||
<ul>
|
||||
<li><code>0F 00</code> - output character in register <code>AL</code> to
|
||||
terminal.</li>
|
||||
<li><code>0F 01</code> - write real-time clock data (as returned by
|
||||
<code>localtime()</code>) to memory location <code>ES:BX</code>.</li>
|
||||
<li><code>0F 02</code> - read <code>AX</code> bytes from disk at offset
|
||||
<code>512*(16*SI+BP)</code> into memory location <code>ES:BX</code>.
|
||||
Disk is specified in <code>DL</code> (<code>0</code> = hard disk,
|
||||
<code>1</code> = floppy disk).</li>
|
||||
<li><code>0F 03</code> - write <code>AX</code> bytes at memory location
|
||||
<code>ES:BX</code> to disk at offset <code>512*(16*SI+BP)</code>. Disk
|
||||
is specified in <code>DL</code> as per <code>0F 02</code>.</li>
|
||||
</ul>
|
||||
<p>Emulator exit is triggered if <code>CS:IP == 0:0</code> (which would
|
||||
be nonsensical in real software since this is where the interrupt vector
|
||||
table lives). The supplied <code>fd.img</code> disk includes a small
|
||||
program <code>QUITEMU.COM</code> which contains a single
|
||||
<code>JMP 0:0</code> instruction, to allow the user to easily quit the
|
||||
emulator without shutting down the terminal.</p>
|
||||
<h3 id="floppy-disk-support">Floppy disk support</h3>
|
||||
<p>Emulates a 3.5” high-density floppy drive. Can read, write and format
|
||||
1.44MB disks (18 sectors per track, 2 heads) and 720KB disks (9 sectors
|
||||
per track, 2 heads).</p>
|
||||
<p>If you want to install your own software from floppy images
|
||||
(downloaded from e.g. <a href="https://vetusware.com">Vetusware</a>),
|
||||
the easiest way to “change disks” is to copy each disk image in turn
|
||||
over the floppy image file you specify on the command line. Don’t forget
|
||||
to put your original boot disk back at the end!</p>
|
||||
<h3 id="hard-disk-support">Hard disk support</h3>
|
||||
<p>Supports up to 1023 cylinders, 63 sectors per track, 63 heads for
|
||||
disks up to 528MB.</p>
|
||||
<p>Disk image format used is a subset of the standard “raw” format used
|
||||
by most disk image mount tools. In general, disk images prepared by the
|
||||
emulator will work with disk image tools and other emulators, but not
|
||||
the other way around.</p>
|
||||
<p>The emulator uses a particularly dumb algorithm to derive a simulated
|
||||
cylinder/sector/head geometry from the disk image file’s size. This
|
||||
algorithm often results in not all the space in the image file being
|
||||
available for disk partitions. For example, creating a 40,000,000 byte
|
||||
image file results in <code>DOS FDISK</code> seeing only 31.9MB as the
|
||||
volume size.</p>
|
||||
<p>Note that unlike a real PC, the emulator cannot boot from a hard disk
|
||||
(image). Therefore, you will always need to use a bootable floppy image,
|
||||
even if after boot everything runs from the HD.</p>
|
||||
<h3 id="mouse">Mouse</h3>
|
||||
<p>No mouse is emulated.</p>
|
||||
<h3 id="real-time-clock">Real-time clock</h3>
|
||||
<p>Reading the <a
|
||||
href="https://en.wikipedia.org/wiki/Real-time_clock">RTC</a> (both time
|
||||
and date) is emulated via the standard BIOS clock interface, pulling the
|
||||
time/date from the host computer. Setting the time or date is not
|
||||
supported.</p>
|
||||
<h3 id="timers">Timers</h3>
|
||||
<p>A countdown timer on I/O port <code>0x40</code> is simulated in a
|
||||
broken way which is good enough for most software. On a real PC this has
|
||||
a default period of 55ms and is programmable. No programmability is
|
||||
supported in the emulator and the period may be about right or
|
||||
completely wrong depending on the actual speed of your computer.</p>
|
||||
<p>On a real PC, IRQ 0 and interrupt 8 are fired every 55ms. The
|
||||
emulator tries to do the same but again, the delay period is not
|
||||
calibrated so you get what you get.</p>
|
||||
<h3 id="pc-speaker">PC speaker</h3>
|
||||
<p>Beeps only, through the console.</p>
|
||||
<h3 id="software-supported">Software supported</h3>
|
||||
<p>The emulator will run practically any software a real PC (of the spec
|
||||
listed at the top of this file) can. The author has tested a number of
|
||||
OSes/GUIs (MS-DOS 6.22, FreeDOS 0.82pl3, Windows 3.0, DESQview 2.8),
|
||||
professional software (Lotus 1-2-3 2.4 and AsEasyAs 5.7 for DOS, Excel
|
||||
2.1 for Windows, AutoCAD 2.5, WordStar 4), programming languages
|
||||
(QBASIC, GWBASIC, Turbo C++), games (Carrier Command, Police Quest, and
|
||||
a bunch of freeware Windows games), and diagnostic/benchmark software
|
||||
(Manifest, Microsoft MSD, InfoSpot, CheckIt) and all of them run
|
||||
well.</p>
|
||||
<p>Screenshots of some of these applications running (on Mac OS X) are
|
||||
provided for the impatient.</p>
|
||||
<figure>
|
||||
<img src="screenshot_autocad.png" alt="AutoCAD" />
|
||||
<figcaption aria-hidden="true">AutoCAD</figcaption>
|
||||
</figure>
|
||||
<figure>
|
||||
<img src="screenshot_flightsim4.png" alt="Flight Simulator 4" />
|
||||
<figcaption aria-hidden="true">Flight Simulator 4</figcaption>
|
||||
</figure>
|
||||
<figure>
|
||||
<img src="screenshot_lotus123.png" alt="Lotus 123" />
|
||||
<figcaption aria-hidden="true">Lotus 123</figcaption>
|
||||
</figure>
|
||||
<figure>
|
||||
<img src="screenshot_qbasic.png" alt="QBASIC" />
|
||||
<figcaption aria-hidden="true">QBASIC</figcaption>
|
||||
</figure>
|
||||
<figure>
|
||||
<img src="screenshot_simcity.png" alt="SimCity" />
|
||||
<figcaption aria-hidden="true">SimCity</figcaption>
|
||||
</figure>
|
||||
<figure>
|
||||
<img src="screenshot_win3_on_macosx.png" alt="Windows 3 on macOS" />
|
||||
<figcaption aria-hidden="true">Windows 3 on macOS</figcaption>
|
||||
</figure>
|
||||
<h3 id="compiler-warnings">Compiler warnings</h3>
|
||||
<p>A lot of compiler warnings are produced by clang. Missing type
|
||||
specifiers, control reaching the end of functions without returning
|
||||
values, incompatible pointer type assignments, and some precedence
|
||||
warnings, all necessary to keep the source size down. Other compilers
|
||||
are likely to produce similar warnings.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013cable3"><a name="inventory"></a>Inventory for
|
||||
2013/cable3</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/cable3.c">cable3.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/cable3.alt.c">cable3.alt.c</a>
|
||||
- alternative source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/cable3.orig.c">cable3.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/runme">runme</a>
|
||||
- how to run</li>
|
||||
<li><a href="screenshot_autocad.png">screenshot_autocad.png</a> -
|
||||
Screenshots of some applications running on macOS</li>
|
||||
<li><a href="screenshot_flightsim4.png">screenshot_flightsim4.png</a> -
|
||||
Screenshots of some applications running on macOS</li>
|
||||
<li><a href="screenshot_lotus123.png">screenshot_lotus123.png</a> -
|
||||
Screenshots of some applications running on macOS</li>
|
||||
<li><a href="screenshot_qbasic.png">screenshot_qbasic.png</a> -
|
||||
Screenshots of some applications running on macOS</li>
|
||||
<li><a href="screenshot_simcity.png">screenshot_simcity.png</a> -
|
||||
Screenshots of some applications running on macOS</li>
|
||||
<li><a
|
||||
href="screenshot_win3_on_macosx.png">screenshot_win3_on_macosx.png</a> -
|
||||
Screenshots of some applications running on macOS</li>
|
||||
<li><a href="sc-ioccc.terminal">sc-ioccc.terminal</a> - configuration
|
||||
file will correctly display console apps</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/bios.asm">bios.asm</a>
|
||||
- BIOS source in assembly</li>
|
||||
<li><a href="2013_cable3.tar.bz2">2013_cable3.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/cable3/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
<li><a href="bios">bios</a> - custom BIOS</li>
|
||||
<li><a href="fd.img">fd.img</a> - DOS boot sector</li>
|
||||
<li><a href="hd.img">hd.img</a> - disk image</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fcable3%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+271
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,283 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/dlowe/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 dlowe</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: dlowe winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,dlowe,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/dlowe</title>
|
||||
<meta name="description" content="2013 IOCCC winner dlowe">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, dlowe">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 dlowe</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/dlowe</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fdlowe%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/dlowe/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../cable3/index.html">← cable3</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../endoh1/index.html">endoh1 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#J_David_Lowe">J. David Lowe</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#US">US</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
|
||||
<p>The current status of this entry is:</p>
|
||||
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
|
||||
<p>For more detailed information see <a href="/bugs.md#2013-dlowe">2013
|
||||
dlowe in bugs.md</a>.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./dlowe</span> <span class="pp">[</span><span class="ss">number...</span><span class="pp">]</span></span></code></pre></div>
|
||||
<p>where <code>[number...]</code> is one or more number, space
|
||||
separated.</p>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
|
||||
<p>What is different about the above if you do something like:</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">'IOCCC winning entry 2013/dlowe'</span> <span class="op">></span> ioccc.txt</span>
|
||||
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span>
|
||||
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a><span class="fu">rm</span> <span class="at">-f</span> ioccc.txt</span></code></pre></div>
|
||||
<p>?</p>
|
||||
<p>To make it simpler to see try showing just the different line
|
||||
like:</p>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./diff.sh</span></span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>We liked how this entry used Unicode, specifically UTF-8, in a
|
||||
somewhat obfuscated way.</p>
|
||||
<p>Also, why doesn’t it crash but instead produces a correct output when
|
||||
called with one argument or when all arguments are equal?</p>
|
||||
<p>For extra fun, compile and run <a href="fun.c">fun.c</a>:</p>
|
||||
<div class="sourceCode" id="cb7"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="pp">#include </span><span class="im"><stdio.h></span></span>
|
||||
<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a><span class="dt">int</span> main<span class="op">()</span> <span class="op">{</span></span>
|
||||
<span id="cb7-3"><a href="#cb7-3" aria-hidden="true" tabindex="-1"></a> printf<span class="op">(</span><span class="st">"</span><span class="sc">%d</span><span class="st"> </span><span class="sc">%d</span><span class="st"> </span><span class="sc">%d\n</span><span class="st">"</span><span class="op">,</span> <span class="op">(</span><span class="dt">int</span><span class="op">)(-</span><span class="fl">1.0</span><span class="op">/</span><span class="fl">0.0</span><span class="op">),</span> <span class="op">(</span><span class="dt">int</span><span class="op">)(</span><span class="fl">0.0</span><span class="op">/</span><span class="fl">0.0</span><span class="op">),</span> <span class="op">(</span><span class="dt">int</span><span class="op">)(</span><span class="fl">1.0</span><span class="op">/</span><span class="fl">0.0</span><span class="op">));</span></span>
|
||||
<span id="cb7-4"><a href="#cb7-4" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
|
||||
<p>with gcc and clang.</p>
|
||||
<p>With GCC (4.7.2), we get</p>
|
||||
<pre><code>-2147483648 -2147483648 -2147483648</code></pre>
|
||||
<p>and with clang (3.3), we get</p>
|
||||
<pre><code>-2147483648 0 2147483647</code></pre>
|
||||
<p>and with Apple clang version 15.0.0 (clang-1500.0.40.1) in 2023, we
|
||||
get:</p>
|
||||
<pre><code>1840985120 -2033041452 35979112</code></pre>
|
||||
<p>Which one is correct? :)</p>
|
||||
<p>NOTE: <code>make all</code> will compile <a href="fun.c">fun.c</a>
|
||||
but to provide a different compiler you can do something like:</p>
|
||||
<div class="sourceCode" id="cb11"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> CC=clang fun</span></code></pre></div>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="sparkl">sparkl</h3>
|
||||
<p>A tiny implementation of command-line <a
|
||||
href="https://en.wikipedia.org/wiki/Sparkline">sparkline</a> data
|
||||
visualization.</p>
|
||||
<h3 id="synopsis">Synopsis</h3>
|
||||
<div class="sourceCode" id="cb12"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./sparkl 0 1 2 3 4 5 6 7</span>
|
||||
<span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a><span class="ex">▁▂▃▄▅▆▇▉</span></span>
|
||||
<span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> echo <span class="st">"sparkline of file lengths: </span><span class="va">$(</span><span class="fu">wc</span> <span class="at">-c</span> <span class="pp">*</span> <span class="kw">|</span> <span class="fu">awk</span> <span class="st">'{print $1}'</span> <span class="kw">|</span> <span class="fu">xargs</span> ./sparkl<span class="va">)</span><span class="st">"</span></span>
|
||||
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a><span class="ex">sparkline</span> of file sizes: ▁▁▁▃▃▂▁▂▁▁▉</span></code></pre></div>
|
||||
<p>NOTE: this has been provided in <a href="slflen.sh">slflen.sh</a> so
|
||||
you can try:</p>
|
||||
<div class="sourceCode" id="cb13"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./slflen.sh</span></span></code></pre></div>
|
||||
<p>instead (which <a href="try.sh">try.sh</a> also uses).</p>
|
||||
<h3 id="description">Description</h3>
|
||||
<p>This is a handy little tool for visualizing numeric series from the
|
||||
command line, using sparklines. Pass it a numeric series as arguments,
|
||||
and <code>sparkl</code> will display a sparkline graph, which you can
|
||||
use to very quickly get a sense of the shape of your data.</p>
|
||||
<h3 id="limitations">Limitations</h3>
|
||||
<ul>
|
||||
<li>Crashes with 0 arguments. It’d be trivial to fix, but adds a few
|
||||
bytes to the code.</li>
|
||||
<li>Produces bogus graphs when given > about 5000 arguments.</li>
|
||||
<li>Only works if your terminal is UTF-8 and your font supports the 8
|
||||
glyphs used.</li>
|
||||
<li>Produces a few harmless compiler warnings.</li>
|
||||
</ul>
|
||||
<h3 id="obfuscation">Obfuscation</h3>
|
||||
<p>The code is very terse. I was torn between submitting this version,
|
||||
and a one-line version compressed using a couple more <code>-D</code>
|
||||
flags.</p>
|
||||
<p>Hand-rolled UTF-8 sequence, magic numbers (what’s that 7 for?),
|
||||
meaningless variable names, reused variables, and so on.</p>
|
||||
<h3 id="acknowledgements">Acknowledgements</h3>
|
||||
<p>Edward Tufte invented sparklines (among other things.) Brilliant.</p>
|
||||
<p>Zach Holman’s <a href="https://github.com/holman/spark">‘spark’
|
||||
utility</a> was absolutely an inspiration.</p>
|
||||
<p>As I was writing up this description, I discovered I’m not the first
|
||||
person to write an obfuscated C sparkline utility! Vicent Martí created
|
||||
<a href="https://gist.github.com/vmg/1368661">this one</a> years (!)
|
||||
ago. (My implementation is completely independent.)</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013dlowe"><a name="inventory"></a>Inventory for
|
||||
2013/dlowe</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/dlowe.c">dlowe.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/dlowe.orig.c">dlowe.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/diff.sh">diff.sh</a>
|
||||
- difference tool</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/fun.c">fun.c</a>
|
||||
- compile and run for extra run</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/slflen.sh">slflen.sh</a>
|
||||
- generate sparkline of file lengths</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a href="2013_dlowe.tar.bz2">2013_dlowe.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/dlowe/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fdlowe%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+342
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,354 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/endoh1/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 endoh1</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: endoh1 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,endoh1,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/endoh1</title>
|
||||
<meta name="description" content="2013 IOCCC winner endoh1">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, endoh1">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 endoh1</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/endoh1</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fendoh1%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/endoh1/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../dlowe/index.html">← dlowe</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../endoh2/index.html">endoh2 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Yusuke_Endoh">Yusuke Endoh</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#JP">JP</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
|
||||
<p>The current status of this entry is:</p>
|
||||
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
|
||||
<p>For more detailed information see <a href="/bugs.md#2013-endoh1">2013
|
||||
endoh1 in bugs.md</a>.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./endoh1</span> <span class="pp">[</span><span class="ss">file.lazy</span><span class="pp">]</span></span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
|
||||
<p>You might also enjoy running:</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> <span class="at">-E</span> endoh1.c <span class="kw">|</span> <span class="fu">less</span></span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>We liked this entry because it can serve as a standalone program as
|
||||
well as an include file; and, as usual, because its input data is at
|
||||
least as obfuscated as the program itself.</p>
|
||||
<p>This entry can be considered an abuse of the GCC’s optimizer; it
|
||||
takes GCC about 4x longer to compile it with -O3 than without, compared
|
||||
to clang’s 2x.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="remarks">Remarks</h3>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="fu">less</span> endoh1.c</span>
|
||||
<span id="cb6-2"><a href="#cb6-2" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> <span class="at">-o</span> endoh1 endoh1.c</span>
|
||||
<span id="cb6-3"><a href="#cb6-3" aria-hidden="true" tabindex="-1"></a><span class="ex">./endoh1</span></span></code></pre></div>
|
||||
<p>… Isn’t there any more to it?</p>
|
||||
<p>Yes, of course.</p>
|
||||
<p>This is a tool <em>for C programmers</em> to play the <a
|
||||
href="http://en.wikipedia.org/wiki/SKI_combinator_calculus">SKI
|
||||
combinator calculus</a>, especially, <a
|
||||
href="https://tromp.github.io/cl/lazy-k.html">Lazy K</a>.</p>
|
||||
<p>This program will shine when it is used as a library. For example, <a
|
||||
href="hello.lazy">hello.lazy</a> is a “Hello world” program written in
|
||||
Lazy K.</p>
|
||||
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> lazy hello.lazy</span>
|
||||
<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a><span class="ex">Hello,</span> world!</span></code></pre></div>
|
||||
<p>where <code>lazy</code> is <a href="https://github.com/irori/lazyk">a
|
||||
reference implementation of Lazy K</a>. At the same time, <a
|
||||
href="hello.lazy">hello.lazy</a> is <em>a valid C program</em> that uses
|
||||
<a href="endoh1.c">endoh1.c</a> as a library.</p>
|
||||
<div class="sourceCode" id="cb8"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> gcc <span class="at">-o</span> hello <span class="at">-xc</span> hello.lazy</span>
|
||||
<span id="cb8-2"><a href="#cb8-2" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ./hello</span>
|
||||
<span id="cb8-3"><a href="#cb8-3" aria-hidden="true" tabindex="-1"></a><span class="ex">Hello,</span> world!</span></code></pre></div>
|
||||
<p>In other words, this program is a kind of <a
|
||||
href="http://en.wikipedia.org/wiki/Polyglot_%28computing%29">polyglot</a>.</p>
|
||||
<p>The usage is simple: you just have to wrap Lazy K program with
|
||||
<code>#include "endoh1.c"</code>. Note that <code>#</code> is a comment
|
||||
in Lazy K.</p>
|
||||
<h3 id="obfuscation">Obfuscation</h3>
|
||||
<p>… is inherent in SKI combinator calculus :-)</p>
|
||||
<p>In addition, it uses various hacks to parse SKI code as C, and to
|
||||
satisfy IOCCC’s size rule.</p>
|
||||
<ul>
|
||||
<li>Abuse of function pointers.</li>
|
||||
<li>Code duplication by macros.</li>
|
||||
<li>Short coding.</li>
|
||||
</ul>
|
||||
<p>These led to the good obfuscation.</p>
|
||||
<p>See <a href="#spoiler">Spoiler section</a> in detail, if you
|
||||
need.</p>
|
||||
<h3 id="limitation">Limitation</h3>
|
||||
<p>This program supports only “Combinator-calculus style notation” of
|
||||
Lazy K. “Unlambda style” and “Iota and Jot” style are not supported.</p>
|
||||
<p>Also, it requires a space between identifiers. In short, use
|
||||
<code>(S K)</code> instead of <code>(SK)</code>, “`sk”,
|
||||
<code>**i*i*i*ii*i*i*ii</code>, or <code>11111100011100</code>.</p>
|
||||
<p>Huge memory may be required to compile the program (about 300 MB on
|
||||
my machine).</p>
|
||||
<p>In addition, there are some limitations (and workarounds) mentioned
|
||||
in <a href="#spoiler">Spoiler section</a>.</p>
|
||||
<p>But I think it would only matter when you run the attached
|
||||
programs.</p>
|
||||
<h3 id="portability">Portability</h3>
|
||||
<p>I confirmed that the program successfully worked with the following
|
||||
compilers:</p>
|
||||
<ul>
|
||||
<li>gcc 4.6.3 [Linux, Mac OS X]</li>
|
||||
<li>clang 3.0 [Linux, Mac OS X]</li>
|
||||
<li>tcc 0.9.26 [Linux]
|
||||
<ul>
|
||||
<li>N.B. tcc 0.9.25 seems to have a bug and fails to run it.</li>
|
||||
</ul></li>
|
||||
</ul>
|
||||
<p>Recent compilers with <code>-Wall -W -Wextra -pedantic</code> say
|
||||
nothing.</p>
|
||||
<div class="sourceCode" id="cb9"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> <span class="at">-Wall</span> <span class="at">-W</span> <span class="at">-Wextra</span> <span class="at">-pedantic</span> prog.c</span>
|
||||
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a><span class="fu">clang</span> <span class="at">-Wall</span> <span class="at">-W</span> <span class="at">-Wextra</span> <span class="at">-pedantic</span> prog.c</span>
|
||||
<span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a><span class="ex">tcc</span> <span class="at">-Wall</span> <span class="at">-W</span> <span class="at">-Wextra</span> <span class="at">-pedantic</span> prog.c</span></code></pre></div>
|
||||
<p>I think it will work on almost all platforms. I confirmed:</p>
|
||||
<ul>
|
||||
<li>Ubuntu Linux</li>
|
||||
<li>Mac OS X</li>
|
||||
<li>Raspberry PI</li>
|
||||
</ul>
|
||||
<p>To check whether the program is specified on the command line or
|
||||
included from another source file, the program uses a predefined macro
|
||||
<code>__INCLUDE_LEVEL__</code>. It is a gcc extension, and also
|
||||
supported by clang. If your compiler does not support it, you cannot use
|
||||
the program as a library. But you can compile and run it as a standalone
|
||||
program, at least. In fact, tcc does not support the macro, but does
|
||||
work.</p>
|
||||
<h3 id="spoiler">Spoiler</h3>
|
||||
<p>The whole program is interpreted by macro expansion. For example,
|
||||
<code>S (K I)</code> is translated to a normal C code,
|
||||
<code>(s)((k)(i))</code>, or simply <code>s(k(i))</code>.</p>
|
||||
<p>This expression returns an abstract syntax tree, and <a
|
||||
href="endoh1.c">endoh1.c</a> evaluates it.</p>
|
||||
<p>This program uses a very simple “term rewriting” approach for
|
||||
evaluating SKI combinator calculus. The rewriting rules are shown in the
|
||||
shape of the code.</p>
|
||||
<h4 id="abuse-of-function-pointers">Abuse of function pointers</h4>
|
||||
<p>Consider a sequence of function applications in C:</p>
|
||||
<div class="sourceCode" id="cb10"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a>s<span class="op">(</span>x<span class="op">)(</span>x<span class="op">)(</span>x<span class="op">)(</span>x<span class="op">)...</span></span></code></pre></div>
|
||||
<p>What type should <code>s</code> have? Unfortunately, C does
|
||||
<em>not</em> provide a “recursive type”, such as
|
||||
<code>typedef f (*f)();</code>.</p>
|
||||
<p>So, I used a heavily nested function pointer type:</p>
|
||||
<div class="sourceCode" id="cb11"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="kw">typedef</span> <span class="dt">void</span> <span class="op">*(*(*(*...(*(</span>f<span class="op">))()...)())())</span></span></code></pre></div>
|
||||
<p>This limits how many arguments one function can be consecutively
|
||||
applied to. But you can increase the number by tweaking the definition
|
||||
of macro <code>p</code>.</p>
|
||||
<h4 id="code-duplication-by-macros">Code duplication by macros</h4>
|
||||
<p>Next, we need to encode “closures”. A closure is a function together
|
||||
with an environment which is a reference to non-local variable.</p>
|
||||
<p>In this case, we need something that meets all of the following
|
||||
criteria:</p>
|
||||
<ul>
|
||||
<li>Is callable itself.</li>
|
||||
<li>Internally possesses a reference to another closure as a non-local
|
||||
variable.</li>
|
||||
<li>Applies the internal closure to an argument when it is called.</li>
|
||||
</ul>
|
||||
<p>However, no type in C is callable and has a reference at the same
|
||||
time. (It is feasible by dynamic code generation, but it is far from
|
||||
portable.)</p>
|
||||
<p>So, I addressed this issue by generating many function definitions
|
||||
statically by (ab)using macros:</p>
|
||||
<div class="sourceCode" id="cb12"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="dt">void</span> <span class="op">*</span>x1<span class="op">;</span> <span class="dt">void</span> f1<span class="op">(</span><span class="dt">void</span> <span class="op">*</span>y<span class="op">)</span> <span class="op">{</span> <span class="cf">return</span> apply<span class="op">(</span>x1<span class="op">,</span> y<span class="op">);</span> <span class="op">}</span></span>
|
||||
<span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a><span class="dt">void</span> <span class="op">*</span>x2<span class="op">;</span> <span class="dt">void</span> f2<span class="op">(</span><span class="dt">void</span> <span class="op">*</span>y<span class="op">)</span> <span class="op">{</span> <span class="cf">return</span> apply<span class="op">(</span>x2<span class="op">,</span> y<span class="op">);</span> <span class="op">}</span></span>
|
||||
<span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a><span class="dt">void</span> <span class="op">*</span>x3<span class="op">;</span> <span class="dt">void</span> f3<span class="op">(</span><span class="dt">void</span> <span class="op">*</span>y<span class="op">)</span> <span class="op">{</span> <span class="cf">return</span> apply<span class="op">(</span>x3<span class="op">,</span> y<span class="op">);</span> <span class="op">}</span></span>
|
||||
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a><span class="op">...</span></span>
|
||||
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a><span class="dt">void</span> <span class="op">*(</span>h<span class="op">[])</span> <span class="op">=</span> <span class="op">{</span> f1<span class="op">,</span> f2<span class="op">,</span> f3<span class="op">,</span> <span class="op">...</span> <span class="op">}</span></span></code></pre></div>
|
||||
<p>and by allotting each of them when a closure is needed.</p>
|
||||
<p>This leads to another limitation: the number of pre-defined closures
|
||||
limits how many identifiers (<code>S</code> <code>K</code>
|
||||
<code>I</code>) one program can use.</p>
|
||||
<p>But you can increase this number by tweaking the definition of macro
|
||||
<code>A</code> <code>B</code> <code>C</code> and <code>D</code>. (Note
|
||||
that closures are allotted only when parsing; after the evaluation
|
||||
starts, “out of closure” cannot occur.)</p>
|
||||
<h4 id="short-cording">Short cording</h4>
|
||||
<p>This margin is too narrow to contain a detailed explanation. Instead,
|
||||
I just ask you one question. Can you tell what
|
||||
<code>v s[]={0,0,s+6,s+2,s+4,s,s+3,s+5,s+1};</code> is? I found this by
|
||||
using an <a
|
||||
href="https://en.wikipedia.org/wiki/Satisfiability_modulo_theories">SMT
|
||||
solver</a>.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013endoh1"><a name="inventory"></a>Inventory for
|
||||
2013/endoh1</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/endoh1.c">endoh1.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/endoh1.orig.c">endoh1.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/echo.lazy">echo.lazy</a>
|
||||
- lazy input</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/hello.lazy">hello.lazy</a>
|
||||
- lazy input</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/rot13.ed">rot13.ed</a>
|
||||
- ed script</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/tac.lazy">tac.lazy</a>
|
||||
- lazy input</li>
|
||||
<li><a href="2013_endoh1.tar.bz2">2013_endoh1.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh1/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fendoh1%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+241
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,253 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/endoh2/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 endoh2</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: endoh2 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,endoh2,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/endoh2</title>
|
||||
<meta name="description" content="2013 IOCCC winner endoh2">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, endoh2">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 endoh2</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/endoh2</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fendoh2%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/endoh2/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../endoh1/index.html">← endoh1</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../endoh3/index.html">endoh3 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Yusuke_Endoh">Yusuke Endoh</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#JP">JP</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> check</span></code></pre></div>
|
||||
<p>You’ll need to have both <a href="https://www.ruby-lang.org">Ruby</a>
|
||||
and <a href="https://imagemagick.org/">ImageMagick</a> installed to run
|
||||
all the automated checks.</p>
|
||||
<p>If you do not have both, however, you can still do the below in the
|
||||
<a href="#try">try</a> section to enjoy the entry. The <a
|
||||
href="Makefile">Makefile</a> <code>check</code> rule will check if you
|
||||
have both and if either is not found it will report it and tell you
|
||||
where to download one or both before exiting.</p>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cat</span> jpeg.c</span></code></pre></div>
|
||||
<p>Next look at <code>jpeg.jpg</code> in an image viewer program.</p>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>This is a program which, when fed its own source, generates a program
|
||||
that almost is its whitespace inverse, which, in its order, generates a
|
||||
JPEG file (speaking of file size abuse, that is about 16.4 times larger
|
||||
than a PBM file with the same image, but the source was also abusing the
|
||||
size counting program…)</p>
|
||||
<p>Don’t pay attention to the OCR <del>behind the ruby curtain</del> —
|
||||
it’s a straightforward bitmap comparison.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="highlights">Highlights</h3>
|
||||
<ul>
|
||||
<li>LZ77-like compression for font and template data</li>
|
||||
<li>tiny JPEG encoder
|
||||
<ul>
|
||||
<li>Zig-zag space-filling curve</li>
|
||||
<li>Discrete cosine transform</li>
|
||||
<li>JPEG Huffman encoding (cheating)</li>
|
||||
</ul></li>
|
||||
</ul>
|
||||
<h3 id="notes">Notes</h3>
|
||||
<p>I picked JPEG instead of PNG, GIF, or BMP because it is the most
|
||||
difficult to generate. I believe that the JPEG encoder is the world’s
|
||||
smallest ever.</p>
|
||||
<p>Nevertheless, the program was too big to meet the IOCCC’s size rule.
|
||||
So I created a smaller bootstrap program that generates the main
|
||||
program. <code>endoh2.c</code> contains fragments of the main program
|
||||
<em>as a comment</em> which <code>iocccsize -i</code> does <em>not</em>
|
||||
count. I gratefully thank the judges for spoiling the size rule this
|
||||
year.</p>
|
||||
<p>I think the program will work on any major platforms and
|
||||
compilers.</p>
|
||||
<h3 id="legal">Legal</h3>
|
||||
<p>This program uses (a part of) Proggy Tiny Fonts which is distributed
|
||||
in MIT License:</p>
|
||||
<pre><code>Copyright (c) 2004, 2005 Tristan Grimmer
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a
|
||||
copy of this software and associated documentation files (the "Software"),
|
||||
to deal in the Software without restriction, including without limitation
|
||||
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||
and/or sell copies of the Software, and to permit persons to whom the
|
||||
Software is furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.</code></pre>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013endoh2"><a name="inventory"></a>Inventory for
|
||||
2013/endoh2</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh2/endoh2.c">endoh2.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh2/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh2/endoh2.orig.c">endoh2.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh2/ocr.rb">ocr.rb</a>
|
||||
- test suite support file</li>
|
||||
<li><a href="2013_endoh2.tar.bz2">2013_endoh2.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh2/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh2/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh2/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fendoh2%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+353
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,365 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/endoh3/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 endoh3</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: endoh3 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,endoh3,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/endoh3</title>
|
||||
<meta name="description" content="2013 IOCCC winner endoh3">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, endoh3">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 endoh3</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/endoh3</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fendoh3%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/endoh3/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../endoh2/index.html">← endoh2</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../endoh4/index.html">endoh4 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Yusuke_Endoh">Yusuke Endoh</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#JP">JP</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
|
||||
<p>The current status of this entry is:</p>
|
||||
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
|
||||
<p>For more detailed information see <a href="/bugs.md#2013-endoh3">2013
|
||||
endoh3 in bugs.md</a>.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./endoh3</span></span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<p>Trying this out will depend on how your system can play sounds. The
|
||||
author’s remarks include some options for different operating
|
||||
systems.</p>
|
||||
<p>The simplest way is to create a .wav file and have your system play
|
||||
that.</p>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">'CDEFGABc'</span> <span class="kw">|</span> <span class="ex">./endoh3</span> <span class="kw">|</span> <span class="ex">ruby</span> wavify.rb <span class="op">></span> cde.wav</span></code></pre></div>
|
||||
<p>Observe how you will need ruby installed.</p>
|
||||
<p>There are also some other musical samples, twinkle.abc and
|
||||
menuet.abc.</p>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>This program can toot out a tune that is small enough to posted to
|
||||
most social media platforms that have small message length limits.</p>
|
||||
<p>This endoh3ram can toot out a tune that is small enough.</p>
|
||||
<h3
|
||||
id="a-modern-day-2023-note-about-the-award-most-tweetable-1-liner-and-twitter">A
|
||||
modern day (2023) note about the award ‘Most tweetable 1-liner’ and
|
||||
twitter:</h3>
|
||||
<p>The IOCCC no longer endorses the use of what was once twitter, or
|
||||
whatever it might be called today. We recommend that you pick a
|
||||
responsible social media platform to post the program’s output on.
|
||||
Nevertheless the award of this entry will remain the same for historical
|
||||
purposes.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="remarks">Remarks</h3>
|
||||
<p>This is a sound synthesizer for a subset of <a
|
||||
href="http://en.wikipedia.org/wiki/ABC_notation">ABC music
|
||||
notation</a>.</p>
|
||||
<p>Try:</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> <span class="at">-o</span> endoh3 endoh3.c</span>
|
||||
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"CDEFGABc"</span> <span class="kw">|</span> <span class="ex">./endoh3</span> <span class="op">></span> /dev/dsp</span></code></pre></div>
|
||||
<p>If <code>/dev/dsp</code> is not available on your system, use an OSS
|
||||
sound wrapper such as <code>padsp</code> or <code>aoss</code>:</p>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"CDEFGABc"</span> <span class="kw">|</span> <span class="ex">./endoh3</span> <span class="kw">|</span> <span class="ex">padsp</span> tee /dev/dsp <span class="op">></span> /dev/null</span></code></pre></div>
|
||||
<p>If you are using Mac OS X, try <a
|
||||
href="http://sox.sourceforge.net/">sox</a> like so:</p>
|
||||
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"CDEFGABc"</span> <span class="kw">|</span> <span class="ex">./endoh3</span> <span class="kw">|</span> <span class="fu">sox</span> <span class="at">-q</span> <span class="at">-traw</span> <span class="at">-r8000</span> <span class="at">-b8</span> <span class="at">-e</span> unsigned-integer <span class="at">-</span> <span class="at">-tcoreaudio</span></span></code></pre></div>
|
||||
<p>If that does not work, use the attached script to convert the output
|
||||
into a wave file format:</p>
|
||||
<div class="sourceCode" id="cb8"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"CDEFGABc"</span> <span class="kw">|</span> <span class="ex">./endoh3</span> <span class="kw">|</span> <span class="ex">ruby</span> wavify.rb <span class="op">></span> cde.wav</span></code></pre></div>
|
||||
<p>and play <code>cde.wav</code>.</p>
|
||||
<p>You can also enjoy some music scores that I attached. With
|
||||
<code>/dev/dsp</code> you can do so like:</p>
|
||||
<div class="sourceCode" id="cb9"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cat</span> twinkle.abc <span class="kw">|</span> <span class="ex">./endoh3</span> <span class="op">></span> /dev/dsp</span>
|
||||
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a><span class="fu">cat</span> menuet.abc <span class="kw">|</span> <span class="ex">./endoh3</span> <span class="op">></span> /dev/dsp</span></code></pre></div>
|
||||
<p>but you should be able to modify it a way to meet your system
|
||||
requirements as described above.</p>
|
||||
<h3 id="obfuscation">Obfuscation</h3>
|
||||
<p>The following sequence of questions may be helpful to understand the
|
||||
<code>endoh3ram</code> program:</p>
|
||||
<ul>
|
||||
<li>How does it convert ABC notes into the frequency?</li>
|
||||
<li>What is <code>89/84.</code>? I found it by using the <a
|
||||
href="https://en.wikipedia.org/wiki/Stern-Brocot_tree">Stern-Brocot
|
||||
tree</a>.</li>
|
||||
<li>How does it generate a wave? Hint: it generates a saw wave.</li>
|
||||
</ul>
|
||||
<h3 id="limitation">Limitation</h3>
|
||||
<p>The following features are supported:</p>
|
||||
<ul>
|
||||
<li>Notes:
|
||||
<ul>
|
||||
<li><code>C</code> <code>D</code> <code>E</code> <code>F</code>
|
||||
<code>G</code> <code>A</code> <code>B</code> (in low octave)</li>
|
||||
<li><code>c</code> <code>d</code> <code>e</code> <code>f</code>
|
||||
<code>g</code> <code>a</code> <code>b</code> (in high octave)</li>
|
||||
</ul></li>
|
||||
<li>Rests: <code>z</code></li>
|
||||
<li>Note lengths:
|
||||
<ul>
|
||||
<li><code>A</code> (an eighth note)</li>
|
||||
<li><code>A2</code> (a quarter note)</li>
|
||||
<li><code>A3</code> (a dotted quarter note)</li>
|
||||
<li><code>A4</code> (a half note)</li>
|
||||
</ul></li>
|
||||
</ul>
|
||||
<p>The following features are <em>NOT</em> supported:</p>
|
||||
<ul>
|
||||
<li>Sharp and flat: <code>^C</code> <code>_C</code>
|
||||
<ul>
|
||||
<li>But it is possible to emit the half tones. Do you see how?</li>
|
||||
</ul></li>
|
||||
<li>Shorter note lengths than 1: <code>C1/2</code>
|
||||
<ul>
|
||||
<li>But you can use <code>C0.5</code> instead.</li>
|
||||
</ul></li>
|
||||
<li>Higher and lower notes: <code>c'</code> <code>C,</code></li>
|
||||
<li>Any meta fields: <code>T:title</code> <code>L:1/4</code></li>
|
||||
<li>Bar line, repeat, ties and slurs, and everything else.</li>
|
||||
</ul>
|
||||
<h3 id="known-bugs">Known Bugs</h3>
|
||||
<p>You can <em>NOT</em> write a note length immediately followed by a
|
||||
note <code>E</code>, such as <code>C2E2</code>.</p>
|
||||
<p>Can you figure out why?</p>
|
||||
<p>A workaround is inserting a whitespace: <code>C2 E2</code>.</p>
|
||||
<h3 id="portability">Portability</h3>
|
||||
<p>I tested it on:</p>
|
||||
<ul>
|
||||
<li>Ubuntu 13.10 with gcc 4.7.3, clang 3.2, and tcc 0.9.25.</li>
|
||||
<li>Mac OS X 10.6 with gcc 4.2.1 and clang 1.7.</li>
|
||||
</ul>
|
||||
<h3 id="legal">Legal</h3>
|
||||
<p>I believe that all the scores that I attached are
|
||||
out-of-copyright.</p>
|
||||
<p>I did write a score of the Happy Birthday song too. (It does not
|
||||
matter because the song is out-of-copyright in my country.) But I do not
|
||||
attach it to protect you from W****r.</p>
|
||||
<p>For the same reason, do not post a score that contains only
|
||||
<code>z1092</code>. You know, it is <a
|
||||
href="http://en.wikipedia.org/wiki/4%E2%80%B233%E2%80%B3">“the famous
|
||||
song”</a>.</p>
|
||||
<h3 id="spoiler">Spoiler</h3>
|
||||
<p>Here is a magical expression which I found by brute-force:</p>
|
||||
<div class="sourceCode" id="cb10"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="op">(</span>c <span class="op">%</span> <span class="dv">32</span> <span class="op">+</span> <span class="dv">5</span><span class="op">)</span> <span class="op">*</span> <span class="dv">9</span> <span class="op">/</span> <span class="dv">5</span> <span class="op">%</span> <span class="dv">13</span> <span class="op">+</span> n <span class="op">/</span> <span class="dv">32</span> <span class="op">*</span> <span class="dv">12</span> <span class="op">-</span> <span class="dv">22</span></span></code></pre></div>
|
||||
<p>Interestingly, it converts an ASCII number of ABC notes to the
|
||||
corresponding tone number.</p>
|
||||
<pre><code>'C' (ASCII 67) => 3
|
||||
'D' (ASCII 68) => 5
|
||||
'E' (ASCII 69) => 7
|
||||
'F' (ASCII 70) => 9
|
||||
'G' (ASCII 71) => 10
|
||||
'A' (ASCII 65) => 12
|
||||
'B' (ASCII 66) => 14
|
||||
'c' (ASCII 99) => 15
|
||||
'd' (ASCII 100) => 17
|
||||
'e' (ASCII 101) => 19
|
||||
'f' (ASCII 102) => 20
|
||||
'g' (ASCII 103) => 22
|
||||
'a' (ASCII 97) => 24
|
||||
'b' (ASCII 98) => 26</code></pre>
|
||||
<p>By the way, you can write a half-tone by the following
|
||||
characters.</p>
|
||||
<pre><code>'K' => 4 (= C#)
|
||||
'L' => 6 (= D#)
|
||||
'U' => 8 (= F#)
|
||||
'V' => 11 (= G#)
|
||||
'P' => 13 (= A#)</code></pre>
|
||||
<p>Note that the tone numbers simply enumerate the semi-tone steps. So
|
||||
we can calculate the frequency easily: <code>pow(2, n / 12.0)</code>.
|
||||
Then, how can we calculate <code>pow</code> without <code>math.h</code>?
|
||||
<code>pow(2, 1.0 / 12.0)</code> is approximated by <code>89/84.</code>.
|
||||
(I found this approximation by using the <a
|
||||
href="http://en.wikipedia.org/wiki/Stern%E2%80%93Brocot_tree">Stern-Brocot
|
||||
tree</a>.) We can gain the frequency by multiplying the value by
|
||||
<code>n</code> times.</p>
|
||||
<p>Finally, the following code generates a saw wave:</p>
|
||||
<div class="sourceCode" id="cb13"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="cf">for</span><span class="op">(</span>c <span class="op">=</span> <span class="dv">0</span><span class="op">;</span> c <span class="op"><</span> len<span class="op">;</span> c<span class="op">++)</span> putchar<span class="op">(</span>a <span class="op">=</span> n <span class="op">*</span> D<span class="op">);</span></span></code></pre></div>
|
||||
<p>where <code>D</code> is a frequency and <code>a</code> is a variable
|
||||
whose type is <code>char</code>. By assigning <code>float</code> to
|
||||
<code>char</code> variable, the implicit type conversion is performed
|
||||
from <code>float</code> to <code>char</code> (modulo 256).</p>
|
||||
<p>(Strictly speaking, this behavior is undefined according to 6.3.1.4
|
||||
in C99; you can replace it with <code>(long)(n*D)</code> if you are
|
||||
pedantic.)</p>
|
||||
<p>All that was left was to combine and condense the components. The key
|
||||
is squashing them into just one <code>for</code>-loop.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013endoh3"><a name="inventory"></a>Inventory for
|
||||
2013/endoh3</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/endoh3.c">endoh3.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/endoh3.orig.c">endoh3.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/flea-waltz.abc">flea-waltz.abc</a>
|
||||
- sample input</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/menuet.abc">menuet.abc</a>
|
||||
- sample input</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/test.abc">test.abc</a>
|
||||
- sample input</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/twinkle.abc">twinkle.abc</a>
|
||||
- sample input</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/wavify.rb">wavify.rb</a>
|
||||
- post process output to form a WAV sound file</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/yankee.abc">yankee.abc</a>
|
||||
- sample input</li>
|
||||
<li><a href="2013_endoh3.tar.bz2">2013_endoh3.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh3/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fendoh3%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+703
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,715 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/endoh4/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 endoh4</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: endoh4 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,endoh4,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/endoh4</title>
|
||||
<meta name="description" content="2013 IOCCC winner endoh4">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, endoh4">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 endoh4</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/endoh4</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fendoh4%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/endoh4/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../endoh3/index.html">← endoh3</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../hou/index.html">hou →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Yusuke_Endoh">Yusuke Endoh</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#JP">JP</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./endoh4</span> <span class="op"><</span> file</span>
|
||||
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./run.sh</span> file</span></code></pre></div>
|
||||
<p>The second form is preferable as it will temporarily make the cursor
|
||||
invisible as recommended by the author. If no file is specified in
|
||||
<code>run.sh</code> command line it will feed to the program <a
|
||||
href="endoh4.c">endoh4.c</a>.</p>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./run.sh</span> cube.txt</span></code></pre></div>
|
||||
<p>Hit ctrl-c to end the program.</p>
|
||||
<p>The author recommends the use of xterm.</p>
|
||||
<p>For an example, if you are a football/soccer fan, try:</p>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./run.sh</span> solids/archimedian-solid/a11-truncated-icosahedron.txt</span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>This program is formatted as the net for a tetrahedron (hint: try
|
||||
feeding the program it’s own source code like <code>./run.sh</code>).
|
||||
When it runs there is an animation for the computation to work out the
|
||||
convex hull.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="spec">Spec</h3>
|
||||
<p>This is a convex polyhedron viewer, which:</p>
|
||||
<ol type="1">
|
||||
<li>reads three-dimensional vertices (3N float values) from
|
||||
<code>stdin</code>,</li>
|
||||
<li>calculates a convex hull of them, and</li>
|
||||
<li>renders it.</li>
|
||||
</ol>
|
||||
<p>This simple spec involves many details.</p>
|
||||
<ul>
|
||||
<li>3D convex hull calculation
|
||||
<ul>
|
||||
<li>recursive gift wrapping algorithm</li>
|
||||
<li>automatic merging of (almost) co-planar faces (i.e., faces are not
|
||||
triangulated)</li>
|
||||
<li>random perturbation for robustness</li>
|
||||
</ul></li>
|
||||
<li>3D rendering
|
||||
<ul>
|
||||
<li>perspective projection</li>
|
||||
<li>ASCII line drawing: <code>"',;;;,;'"</code></li>
|
||||
<li>camera in a spherical spiral orbit</li>
|
||||
</ul></li>
|
||||
</ul>
|
||||
<p>(Note that this program does not use <code>math.h</code>.)</p>
|
||||
<h3 id="portability">Portability</h3>
|
||||
<p>I think it conforms with both C89 and C99. I confirmed that it worked
|
||||
on gcc, clang, and tcc. It should not be warned with
|
||||
<code>-pedantic</code> and <code>-Wextra</code>.</p>
|
||||
<h3 id="tips">Tips</h3>
|
||||
<p>You may want to use <code>tput</code> to hide the terminal
|
||||
cursor.</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="fu">tput</span> civis</span>
|
||||
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./endoh4</span> <span class="op"><</span> cube.txt</span>
|
||||
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a><span class="fu">tput</span> cnorm</span></code></pre></div>
|
||||
<p>or</p>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./run.sh</span> cube.txt</span></code></pre></div>
|
||||
<h3 id="bonuses">Bonuses</h3>
|
||||
<p>You can change the screen size. Let the aspect ratio be about
|
||||
3:1.</p>
|
||||
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> <span class="at">-DS</span><span class="op">=</span>120,40 <span class="at">-o</span> endoh4 endoh4.c</span></code></pre></div>
|
||||
<p>The shape of this code is the geometric net of a regular tetrahedron.
|
||||
So, try:</p>
|
||||
<div class="sourceCode" id="cb8"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./endoh4</span> <span class="op"><</span> endoh4.c <span class="co"># or ./run.sh</span></span></code></pre></div>
|
||||
<p>The <a href="solids/">solids/</a> directory includes various solid
|
||||
data:</p>
|
||||
<ul>
|
||||
<li><a href="http://en.wikipedia.org/wiki/Platonic_solid">Platonic
|
||||
solids</a></li>
|
||||
<li><a href="http://en.wikipedia.org/wiki/Archimedean_solid">Archimedean
|
||||
solids</a></li>
|
||||
<li><a
|
||||
href="http://en.wikipedia.org/wiki/Prism_%28geometry%29">Prisms</a></li>
|
||||
<li><a href="http://en.wikipedia.org/wiki/Antiprism">Antiprisms</a></li>
|
||||
<li><a href="http://en.wikipedia.org/wiki/Bipyramid">Bipyramids</a></li>
|
||||
<li><a
|
||||
href="http://en.wikipedia.org/wiki/Trapezohedron">Trapezohedrons</a></li>
|
||||
<li><a href="http://en.wikipedia.org/wiki/Johnson_solid">Johnson
|
||||
solids</a></li>
|
||||
</ul>
|
||||
<p>I created the files by using the POV-Ray scripts (<a
|
||||
href="http://en.wikipedia.org/wiki/File:Poly.pov">1</a> and <a
|
||||
href="http://en.wikipedia.org/wiki/User:AndrewKepert/poly.pov">2</a>) in
|
||||
Wikipedia. They are copyrighted in CC BY-SA 3.0 by “User:Cyp” and
|
||||
“User:AndrewKepert”.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013endoh4"><a name="inventory"></a>Inventory for
|
||||
2013/endoh4</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/endoh4.c">endoh4.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/endoh4.orig.c">endoh4.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/cube.txt">cube.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/antiprism/a04-square-antiprism.txt">solids/antiprism/a04-square-antiprism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/antiprism/a05-pentagonal-antiprism.txt">solids/antiprism/a05-pentagonal-antiprism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/antiprism/a06-hexagonal-antiprism.txt">solids/antiprism/a06-hexagonal-antiprism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/antiprism/a07-heptagonal-antiprism.txt">solids/antiprism/a07-heptagonal-antiprism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/antiprism/a08-octagonal-antiprism.txt">solids/antiprism/a08-octagonal-antiprism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/antiprism/a09-enneagonal-antiprism.txt">solids/antiprism/a09-enneagonal-antiprism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/antiprism/a10-decagonal-antiprism.txt">solids/antiprism/a10-decagonal-antiprism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a01-cuboctahedron.txt">solids/archimedian-solid/a01-cuboctahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a02-great-rhombicosidodecahedron.txt">solids/archimedian-solid/a02-great-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a03-great-rhombicuboctahedron.txt">solids/archimedian-solid/a03-great-rhombicuboctahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a04-icosidodecahedron.txt">solids/archimedian-solid/a04-icosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a05-small-rhombicosidodecahedron.txt">solids/archimedian-solid/a05-small-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a06-small-rhombicuboctahedron.txt">solids/archimedian-solid/a06-small-rhombicuboctahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a07-snub-cube.txt">solids/archimedian-solid/a07-snub-cube.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a08-snub-dodecahedron.txt">solids/archimedian-solid/a08-snub-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a09-truncated-cube.txt">solids/archimedian-solid/a09-truncated-cube.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a10-truncated-dodecahedron.txt">solids/archimedian-solid/a10-truncated-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a11-truncated-icosahedron.txt">solids/archimedian-solid/a11-truncated-icosahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a12-truncated-octahedron.txt">solids/archimedian-solid/a12-truncated-octahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/archimedian-solid/a13-truncated-tetrahedron.txt">solids/archimedian-solid/a13-truncated-tetrahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/bipyramid/b06-hexagonal-bipyramid.txt">solids/bipyramid/b06-hexagonal-bipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/bipyramid/b07-heptagonal-bipyramid.txt">solids/bipyramid/b07-heptagonal-bipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/bipyramid/b08-octagonal-bipyramid.txt">solids/bipyramid/b08-octagonal-bipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/bipyramid/b09-enneagonal-bipyramid.txt">solids/bipyramid/b09-enneagonal-bipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/bipyramid/b10-decagonal-bipyramid.txt">solids/bipyramid/b10-decagonal-bipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c01-rhombic-dodecahedron.txt">solids/catalan-solid/c01-rhombic-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c02-disdyakis-triacontahedron.txt">solids/catalan-solid/c02-disdyakis-triacontahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c03-disdyakis-dodecahedron.txt">solids/catalan-solid/c03-disdyakis-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c04-rhombic-triacontahedron.txt">solids/catalan-solid/c04-rhombic-triacontahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c05-deltoidal-hexecontahedron.txt">solids/catalan-solid/c05-deltoidal-hexecontahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c06-deltoidal-icositetrahedron.txt">solids/catalan-solid/c06-deltoidal-icositetrahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c07-pentagonal-icositetrahedron.txt">solids/catalan-solid/c07-pentagonal-icositetrahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c08-pentagonal-hexecontahedron.txt">solids/catalan-solid/c08-pentagonal-hexecontahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c09-small-triakis-octahedron.txt">solids/catalan-solid/c09-small-triakis-octahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c10-triakis-icosahedron.txt">solids/catalan-solid/c10-triakis-icosahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c11-pentakis-dodecahedron.txt">solids/catalan-solid/c11-pentakis-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c12-tetrakis-hexahedron.txt">solids/catalan-solid/c12-tetrakis-hexahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/catalan-solid/c13-triakis-tetrahedron.txt">solids/catalan-solid/c13-triakis-tetrahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j01-square-pyramid.txt">solids/johnson-solid/j01-square-pyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j02-pentagonal-pyramid.txt">solids/johnson-solid/j02-pentagonal-pyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j03-triangular-cupola.txt">solids/johnson-solid/j03-triangular-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j04-square-cupola.txt">solids/johnson-solid/j04-square-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j05-pentagonal-cupola.txt">solids/johnson-solid/j05-pentagonal-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j06-pentagonal-rotunda.txt">solids/johnson-solid/j06-pentagonal-rotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j07-elongated-triangular-pyramid.txt">solids/johnson-solid/j07-elongated-triangular-pyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j08-elongated-square-pyramid.txt">solids/johnson-solid/j08-elongated-square-pyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j09-elongated-pentagonal-pyramid.txt">solids/johnson-solid/j09-elongated-pentagonal-pyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j10-gyroelongated-square-pyramid.txt">solids/johnson-solid/j10-gyroelongated-square-pyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j11-gyroelongated-pentagonal-pyramid.txt">solids/johnson-solid/j11-gyroelongated-pentagonal-pyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j12-triangular-dipyramid.txt">solids/johnson-solid/j12-triangular-dipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j13-pentagonal-dipyramid.txt">solids/johnson-solid/j13-pentagonal-dipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j14-elongated-triangular-dipyramid.txt">solids/johnson-solid/j14-elongated-triangular-dipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j15-elongated-square-dipyramid.txt">solids/johnson-solid/j15-elongated-square-dipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j16-elongated-pentagonal-dipyramid.txt">solids/johnson-solid/j16-elongated-pentagonal-dipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j17-gyroelongated-square-dipyramid.txt">solids/johnson-solid/j17-gyroelongated-square-dipyramid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j18-elongated-triangular-cupola.txt">solids/johnson-solid/j18-elongated-triangular-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j19-elongated-square-cupola.txt">solids/johnson-solid/j19-elongated-square-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j20-elongated-pentagonal-cupola.txt">solids/johnson-solid/j20-elongated-pentagonal-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j21-elongated-pentagonal-rotunda.txt">solids/johnson-solid/j21-elongated-pentagonal-rotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j22-gyroelongated-triangular-cupola.txt">solids/johnson-solid/j22-gyroelongated-triangular-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j23-gyroelongated-square-cupola.txt">solids/johnson-solid/j23-gyroelongated-square-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j24-gyroelongated-pentagonal-cupola.txt">solids/johnson-solid/j24-gyroelongated-pentagonal-cupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j25-gyroelongated-pentagonal-rotunda.txt">solids/johnson-solid/j25-gyroelongated-pentagonal-rotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j26-gyrobifastigium.txt">solids/johnson-solid/j26-gyrobifastigium.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j27-triangular-orthobicupola.txt">solids/johnson-solid/j27-triangular-orthobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j28-square-orthobicupola.txt">solids/johnson-solid/j28-square-orthobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j29-square-gyrobicupola.txt">solids/johnson-solid/j29-square-gyrobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j30-pentagonal-orthobicupola.txt">solids/johnson-solid/j30-pentagonal-orthobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j31-pentagonal-gyrobicupola.txt">solids/johnson-solid/j31-pentagonal-gyrobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j32-pentagonal-orthocupolarotunda.txt">solids/johnson-solid/j32-pentagonal-orthocupolarotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j33-pentagonal-gyrocupolarotunda.txt">solids/johnson-solid/j33-pentagonal-gyrocupolarotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j34-pentagonal-orthobirotunda.txt">solids/johnson-solid/j34-pentagonal-orthobirotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j35-elongated-triangular-orthobicupola.txt">solids/johnson-solid/j35-elongated-triangular-orthobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j36-elongated-triangular-gyrobicupola.txt">solids/johnson-solid/j36-elongated-triangular-gyrobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j37-elongated-square-gyrobicupola.txt">solids/johnson-solid/j37-elongated-square-gyrobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j38-elongated-pentagonal-orthobicupola.txt">solids/johnson-solid/j38-elongated-pentagonal-orthobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j39-elongated-pentagonal-gyrobicupola.txt">solids/johnson-solid/j39-elongated-pentagonal-gyrobicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j40-elongated-pentagonal-orthocupolarotunda.txt">solids/johnson-solid/j40-elongated-pentagonal-orthocupolarotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j41-elongated-pentagonal-gyrocupolarotunda.txt">solids/johnson-solid/j41-elongated-pentagonal-gyrocupolarotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j42-elongated-pentagonal-orthobirotunda.txt">solids/johnson-solid/j42-elongated-pentagonal-orthobirotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j43-elongated-pentagonal-gyrobirotunda.txt">solids/johnson-solid/j43-elongated-pentagonal-gyrobirotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j44-gyroelongated-triangular-bicupola.txt">solids/johnson-solid/j44-gyroelongated-triangular-bicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j45-gyroelongated-square-bicupola.txt">solids/johnson-solid/j45-gyroelongated-square-bicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j46-gyroelongated-pentagonal-bicupola.txt">solids/johnson-solid/j46-gyroelongated-pentagonal-bicupola.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j47-gyroelongated-pentagonal-cupolarotunda.txt">solids/johnson-solid/j47-gyroelongated-pentagonal-cupolarotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j48-gyroelongated-pentagonal-birotunda.txt">solids/johnson-solid/j48-gyroelongated-pentagonal-birotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j49-augmented-triangular-prism.txt">solids/johnson-solid/j49-augmented-triangular-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j50-biaugmented-triangular-prism.txt">solids/johnson-solid/j50-biaugmented-triangular-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j51-triaugmented-triangular-prism.txt">solids/johnson-solid/j51-triaugmented-triangular-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j52-augmented-pentagonal-prism.txt">solids/johnson-solid/j52-augmented-pentagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j53-biaugmented-pentagonal-prism.txt">solids/johnson-solid/j53-biaugmented-pentagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j54-augmented-hexagonal-prism.txt">solids/johnson-solid/j54-augmented-hexagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j55-parabiaugmented-hexagonal-prism.txt">solids/johnson-solid/j55-parabiaugmented-hexagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j56-metabiaugmented-hexagonal-prism.txt">solids/johnson-solid/j56-metabiaugmented-hexagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j57-triaugmented-hexagonal-prism.txt">solids/johnson-solid/j57-triaugmented-hexagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j58-augmented-dodecahedron.txt">solids/johnson-solid/j58-augmented-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j59-parabiaugmented-dodecahedron.txt">solids/johnson-solid/j59-parabiaugmented-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j60-metabiaugmented-dodecahedron.txt">solids/johnson-solid/j60-metabiaugmented-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j61-triaugmented-dodecahedron.txt">solids/johnson-solid/j61-triaugmented-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j62-metabidiminished-icosahedron.txt">solids/johnson-solid/j62-metabidiminished-icosahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j63-tridiminished-icosahedron.txt">solids/johnson-solid/j63-tridiminished-icosahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j64-augmented-tridiminished-icosahedron.txt">solids/johnson-solid/j64-augmented-tridiminished-icosahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j65-augmented-truncated-tetrahedron.txt">solids/johnson-solid/j65-augmented-truncated-tetrahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j66-augmented-truncated-cube.txt">solids/johnson-solid/j66-augmented-truncated-cube.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j67-biaugmented-truncated-cube.txt">solids/johnson-solid/j67-biaugmented-truncated-cube.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j68-augmented-truncated-dodecahedron.txt">solids/johnson-solid/j68-augmented-truncated-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j69-parabiaugmented-truncated-dodecahedron.txt">solids/johnson-solid/j69-parabiaugmented-truncated-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j70-metabiaugmented-truncated-dodecahedron.txt">solids/johnson-solid/j70-metabiaugmented-truncated-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j71-triaugmented-truncated-dodecahedron.txt">solids/johnson-solid/j71-triaugmented-truncated-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j72-gyrate-rhombicosidodecahedron.txt">solids/johnson-solid/j72-gyrate-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j73-parabigyrate-rhombicosidodecahedron.txt">solids/johnson-solid/j73-parabigyrate-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j74-metabigyrate-rhombicosidodecahedron.txt">solids/johnson-solid/j74-metabigyrate-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j75-trigyrate-rhombicosidodecahedron.txt">solids/johnson-solid/j75-trigyrate-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j76-diminished-rhombicosidodecahedron.txt">solids/johnson-solid/j76-diminished-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j77-paragyrate-diminished-rhombicosidodecahedron.txt">solids/johnson-solid/j77-paragyrate-diminished-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j78-metagyrate-diminished-rhombicosidodecahedron.txt">solids/johnson-solid/j78-metagyrate-diminished-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j79-bigyrate-diminished-rhombicosidodecahedron.txt">solids/johnson-solid/j79-bigyrate-diminished-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j80-parabidiminished-rhombicosidodecahedron.txt">solids/johnson-solid/j80-parabidiminished-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j81-metabidiminished-rhombicosidodecahedron.txt">solids/johnson-solid/j81-metabidiminished-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j82-gyrate-bidiminished-rhombicosidodecahedron.txt">solids/johnson-solid/j82-gyrate-bidiminished-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j83-tridiminished-rhombicosidodecahedron.txt">solids/johnson-solid/j83-tridiminished-rhombicosidodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j84-snub-disphenoid.txt">solids/johnson-solid/j84-snub-disphenoid.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j85-snub-square-antiprism.txt">solids/johnson-solid/j85-snub-square-antiprism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j86-sphenocorona.txt">solids/johnson-solid/j86-sphenocorona.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j87-augmented-sphenocorona.txt">solids/johnson-solid/j87-augmented-sphenocorona.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j88-sphenomegacorona.txt">solids/johnson-solid/j88-sphenomegacorona.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j89-hebesphenomegacorona.txt">solids/johnson-solid/j89-hebesphenomegacorona.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j90-disphenocingulum.txt">solids/johnson-solid/j90-disphenocingulum.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j91-bilunabirotunda.txt">solids/johnson-solid/j91-bilunabirotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/johnson-solid/j92-triangular-hebesphenorotunda.txt">solids/johnson-solid/j92-triangular-hebesphenorotunda.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/platonic-solid/p01-tetrahedron.txt">solids/platonic-solid/p01-tetrahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/platonic-solid/p02-cube.txt">solids/platonic-solid/p02-cube.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/platonic-solid/p03-octahedron.txt">solids/platonic-solid/p03-octahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/platonic-solid/p04-dodecahedron.txt">solids/platonic-solid/p04-dodecahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/platonic-solid/p05-icosahedron.txt">solids/platonic-solid/p05-icosahedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/prism/p03-triangular-prism.txt">solids/prism/p03-triangular-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/prism/p05-pentagonal-prism.txt">solids/prism/p05-pentagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/prism/p06-hexagonal-prism.txt">solids/prism/p06-hexagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/prism/p07-heptagonal-prism.txt">solids/prism/p07-heptagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/prism/p08-octagonal-prism.txt">solids/prism/p08-octagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/prism/p09-enneagonal-prism.txt">solids/prism/p09-enneagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/prism/p10-decagonal-prism.txt">solids/prism/p10-decagonal-prism.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/trapezohedron/t04-tetragonal-trapezohedron.txt">solids/trapezohedron/t04-tetragonal-trapezohedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/trapezohedron/t05-pentagonal-trapezohedron.txt">solids/trapezohedron/t05-pentagonal-trapezohedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/trapezohedron/t06-hexagonal-trapezohedron.txt">solids/trapezohedron/t06-hexagonal-trapezohedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/trapezohedron/t08-octagonal-trapezohedron.txt">solids/trapezohedron/t08-octagonal-trapezohedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/solids/trapezohedron/t10-decagonal-trapezohedron.txt">solids/trapezohedron/t10-decagonal-trapezohedron.txt</a>
|
||||
- 3D object coordinates</li>
|
||||
<li><a href="2013_endoh4.tar.bz2">2013_endoh4.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/endoh4/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fendoh4%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+423
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,435 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/hou/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 hou</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: hou winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,hou,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/hou</title>
|
||||
<meta name="description" content="2013 IOCCC winner hou">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, hou">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 hou</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/hou</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fhou%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/hou/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../endoh4/index.html">← endoh4</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../mills/index.html">mills →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Qiming_HOU">Qiming HOU</a><br>
|
||||
Location: <a href="/temp-test-ioccc/location.html#CN">CN</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> all</span></code></pre></div>
|
||||
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
|
||||
<p>The current status of this entry is:</p>
|
||||
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
|
||||
<p>For more detailed information see <a href="/bugs.md#2013-hou">2013
|
||||
hou in bugs.md</a>.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./hou</span> <span class="pp">[</span><span class="ss">scene</span><span class="pp">-</span><span class="ss">file</span><span class="pp">-</span><span class="ss">name</span><span class="pp">]</span> <span class="pp">[</span><span class="ss">options</span><span class="pp">]</span></span></code></pre></div>
|
||||
<p>Follow the instructions in <code>stdout</code>, preferably with an
|
||||
auto-refreshing PPM image viewer ready. Refresh the image every time the
|
||||
output refreshes, all effects should be more or less recognizable when
|
||||
you see 16.</p>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./hou</span> BIG</span>
|
||||
<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./hou</span> old_default.scene BIG</span>
|
||||
<span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="ex">./hou</span> otherroom.scene</span>
|
||||
<span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a><span class="ex">./hou</span> otherroom.scene NAIVE</span></code></pre></div>
|
||||
<p>Try opening the file and then let the program run a while and every
|
||||
so often reopen the file, to see how it changes. The author suggests
|
||||
that you leave the program running overnight to see what happens. If
|
||||
however you do not have all night :-) then the following JPEG files
|
||||
should show you what happens with some of the invocations above:</p>
|
||||
<figure>
|
||||
<img src="luna.jpg" alt="./hou BIG - Luna" />
|
||||
<figcaption aria-hidden="true">./hou BIG - Luna</figcaption>
|
||||
</figure>
|
||||
<figure>
|
||||
<img src="old_default.jpg"
|
||||
alt="./hou old_default.scene - Old default" />
|
||||
<figcaption aria-hidden="true">./hou old_default.scene - Old
|
||||
default</figcaption>
|
||||
</figure>
|
||||
<figure>
|
||||
<img src="otherroom.jpg" alt="./hou otherroom.scene - Other room" />
|
||||
<figcaption aria-hidden="true">./hou otherroom.scene - Other
|
||||
room</figcaption>
|
||||
</figure>
|
||||
<p>This program does not terminate by itself: you must kill
|
||||
<code>hou</code> (but not Qiming Hou :-) ) in order to end the
|
||||
program.</p>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>You could consider that this program violates the source code size
|
||||
limit. This is because the first compilation of this program is really
|
||||
just a decompressor to generate the real source code of the program.</p>
|
||||
<p>This program will loop infinitely while progressively refining a <a
|
||||
href="https://en.wikipedia.org/wiki/Ray_tracing_(graphics)">raytraced</a>
|
||||
image.</p>
|
||||
<p>NOTE: the author refers to <a href="a.c">a.c</a>, placed in a gzipped
|
||||
file <code>a.c.gz</code>. We do not include it but it can be generated
|
||||
like:</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> <span class="at">-Wall</span> hou.c <span class="at">-o</span> hou <span class="at">-lm</span></span>
|
||||
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./hou</span> <span class="op">></span> a.c</span></code></pre></div>
|
||||
<p>but there is no need to do this as the Makefile takes care of it
|
||||
without even needing to create a temporary file.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="using-hou">Using hou</h3>
|
||||
<p>This program is a programmable rendering engine with a built-in
|
||||
default scene. The standard command line is:</p>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./hou</span> <span class="pp">[</span><span class="ss">scene</span><span class="pp">-</span><span class="ss">file</span><span class="pp">-</span><span class="ss">name</span><span class="pp">]</span> <span class="pp">[</span><span class="ss">options</span><span class="pp">]</span></span></code></pre></div>
|
||||
<p>As <code>hou</code> runs, it writes a progressively refining image to
|
||||
a ppm file specified in the scene. The initialization may take a while,
|
||||
but once it’s done, a rough preview should be available in seconds.
|
||||
Leave <code>hou</code> running for the night, and you get a high quality
|
||||
result like the attached <code>*.jpg</code> files. Kill <code>hou</code>
|
||||
manually after you’re satisfied with the image quality.</p>
|
||||
<p>To save time and energy for the judges, rendered images for all
|
||||
provided scenes are provided as attached files.</p>
|
||||
<h3 id="features">Features</h3>
|
||||
<ul>
|
||||
<li>Fully programmable: Almost every stage of the renderer is
|
||||
programmable with a shader, i.e., a short script that does something
|
||||
rendering-related. In particular, each scene consists of one or more
|
||||
geometry shaders, a camera shader, and one or more material shaders.
|
||||
Shaders are written in an interpreted language that supports basic
|
||||
arithmetic, a few math functions, variables and procedural calls in the
|
||||
CPS (Continuation Passing Style).</li>
|
||||
<li>Fast preview: This renderer isn’t just a naive path tracer, it
|
||||
actually uses a modern global illumination algorithm which is robust
|
||||
against challenging scene configurations. You can mostly place light
|
||||
sources and specify surface properties as you please without worrying
|
||||
too much about the convergence speed; you always get a nice fast preview
|
||||
within one or two minutes. As proof, there is a comparison:
|
||||
<code>./hou otherroom.scene</code> gives a rough idea about the overall
|
||||
illumination at 16 samples per pixel (i.e., when the program prints 16),
|
||||
whereas the naive approach <code>./hou otherroom.scene NAIVE</code> only
|
||||
produces a mess of white dots.</li>
|
||||
<li>Rich visual effects: The algorithm samples all light path types so
|
||||
most physically based effects can be produced. The default scene
|
||||
demonstrates quite a few of them: reflection, area light, soft shadows,
|
||||
color bleeding, caustics, and depth-of-field blur. Of course, one can
|
||||
also get programmable-shading effects like procedural texturing and
|
||||
approximated Fresnel terms.</li>
|
||||
<li>Accelerated ray tracing: The ray tracing part uses an algorithm
|
||||
better than the brute-force intersection of everything. The renderer
|
||||
even builds an acceleration data structure! Despite the double precision
|
||||
and the single-threadedness, it still runs at about 0.5 million rays per
|
||||
second on the author’s machine.</li>
|
||||
<li>Pause and resume: Can’t run <code>./hou</code> overnight? No
|
||||
problem! You can kill and resume a rendering session whenever you want.
|
||||
The renderer automatically saves the progress every 16 samples and
|
||||
resumes where it’s left off when restarted. Also, each scene/parameter
|
||||
combination gets a different saved session so you don’t have to worry
|
||||
about conflicts.</li>
|
||||
</ul>
|
||||
<h3 id="abuse-of-the-rules">Abuse of the rules</h3>
|
||||
<ul>
|
||||
<li><a href="hou.c">hou.c</a> uses compression to get around the size
|
||||
limit. The compression fully complies with the rules and the guidelines
|
||||
(at least the portion that shows up in <code>grep</code> “size limit”).
|
||||
Please see the <a href="self-imposed-restrictions">Self-imposed
|
||||
restrictions</a> section below for more details.</li>
|
||||
<li><code>hou</code> does not terminate (as suggested by the second line
|
||||
of rule 6).</li>
|
||||
</ul>
|
||||
<h3 id="self-imposed-restrictions">Self-imposed restrictions</h3>
|
||||
<ul>
|
||||
<li>The building process does not involve any OS tool beyond
|
||||
<code>cc(1)</code> and <code>make(1)</code>. No <code>gzip(1)</code>
|
||||
compression! <code>a.c.gz</code> doesn’t fit in 2053 bytes, anyway.</li>
|
||||
<li>Neither <a href="hou.c">hou.c</a> nor <a href="a.c">a.c</a> (the
|
||||
<em>real</em> decompressed source) uses <code>#define</code> (or
|
||||
<code>cc -D</code>) at all.</li>
|
||||
<li>The source code is not required at runtime.</li>
|
||||
<li><a href="a.c">a.c</a> does not drop optional features to reduce
|
||||
size. There are pure optimization code that can be dropped without
|
||||
affecting the converged output (only affecting the ray tracing speed /
|
||||
convergence rate). All files are properly <code>fopen()</code>ed with
|
||||
<code>"rb"</code> / <code>"wb"</code> for Windows compatibility. The PPM
|
||||
header has a comment line for non-standard-compliant viewers
|
||||
(specifically, my old HDRShop 1.0). And there is a nice text message
|
||||
saying “please wait…”. Despite the messy look, <a href="a.c">a.c</a> and
|
||||
<a href="hou.c">hou.c</a> compile warning-free (<a
|
||||
href="hou.c">hou.c</a> even wastes 18 bytes on
|
||||
<code>#include<stdio.h></code> just for <code>putchar(3)</code>).
|
||||
<a href="a.c">a.c</a> compiles mostly clean in the C99/ANSI modes of
|
||||
clang and gcc (with <code>-Wall --pedantic</code>). The only warning
|
||||
generated is a pedantic one:
|
||||
<code>"string constant too long"</code>.</li>
|
||||
</ul>
|
||||
<h3 id="comments-and-why-obfuscated">Comments and why obfuscated</h3>
|
||||
<ul>
|
||||
<li>Both the compression and the rendering use mathematically involved
|
||||
algorithms. Understanding the C doesn’t help much if one isn’t familiar
|
||||
with the math.</li>
|
||||
<li>Modern renderers provide shader access to just about any internal
|
||||
state. This one follows suit and reuses the same shader-accessible array
|
||||
for all important internal states.</li>
|
||||
<li>Infinity and NaN (not-a-number) are used during normal course of
|
||||
execution.</li>
|
||||
<li>Previous image-generating entries may take care to hide the “IOCCC”
|
||||
string in the code, but they leave the text clear in the
|
||||
<em>result</em>. This entry takes it further and obfuscates the output
|
||||
image as well. Can you find the text in the image? Hint: look up.</li>
|
||||
<li><a href="a.c">a.c</a> leaves all shaders in plain text, but the
|
||||
plain text shader code can’t be taken for its face value; the arithmetic
|
||||
rules subtly diverge from our common sense.</li>
|
||||
<li><a href="a.c">a.c</a> is less portable than <a
|
||||
href="hou.c">hou.c</a> itself. <a href="hou.c">hou.c</a> only depends on
|
||||
ASCII and should run just fine on 16-bit, small memory, or
|
||||
floating-point-incapable machines. <a href="a.c">a.c</a>, while still
|
||||
reasonably portable, is quite memory consuming, requires
|
||||
IEEE754-compliant <code>double</code>, and assumes <code>int</code> to
|
||||
be 32-bits.</li>
|
||||
<li>Though technically endian-dependent, <a href="a.c">a.c</a> remains
|
||||
portable providing that one doesn’t copy saved sessions across different
|
||||
endianness.</li>
|
||||
</ul>
|
||||
<h3 id="spoiler">Spoiler</h3>
|
||||
<pre><code> 3225 3225 3225 9 9 3225 3225
|
||||
1 1 1 1 1 1 1 1 1 1
|
||||
4225 1226 1 1 1 1 1222 1226
|
||||
1 1 1 1 1 1 1 1 1
|
||||
4226 1 4226 8 4222 4226 1 1</code></pre>
|
||||
<p>The program consists of a recursive-descent interpreter, a
|
||||
<code>3DDDA</code> (3D Discrete Differential Analysis) ray tracer, a
|
||||
<code>PSSMLT</code> (Primary Sample Space Metropolis Light Transport)
|
||||
light path sampler, all squeezed into the size limit using a
|
||||
<code>PPM</code> compressor (Prediction by Partial Matching, and yes,
|
||||
the output format is chosen for the pun..).</p>
|
||||
<p><code>PSSMLT</code> uses the Metropolis-Hasting algorithm to sample a
|
||||
32D unit hypercube. Each point in the hypercube is interpreted as a
|
||||
sequence of random numbers, and is sent to a path tracer to generate a
|
||||
light path. The point’s Metropolis-Hasting energy is then defined as the
|
||||
corresponding path’s contribution value to the final image. Since each
|
||||
path is sampled with a probability proportional to its energy, the
|
||||
sample distribution directly corresponds to the final image, which can
|
||||
then be produced as a simple per-pixel histogram of all generated paths.
|
||||
The robustness comes from a state mutation strategy that actively tries
|
||||
to explore the neighborhood of high energy peaks (e.g. paths that happen
|
||||
to hit the light source in <a
|
||||
href="otherroom.scene">otherroom.scene</a>). In addition, a rudimentary
|
||||
form of lens path stratification is added to balance the attention each
|
||||
pixel receives. The Metropolis-Hasting process completely avoids the
|
||||
tell-tale pixel sampling loop required in most other image generation
|
||||
methods.</p>
|
||||
<p>The <code>3DDDA</code> tracer is chosen for scalability: its
|
||||
performance doesn’t get much worse as scene complexity increases.
|
||||
Another benefit is that with the <code>DDA</code> code in place one can
|
||||
naturally use hierarchical grids as an acceleration structure. The
|
||||
downside, of course, is that the setup involves quite a few divisions,
|
||||
which naturally turns into divisions-by-zero. Fortunately, the IEEE754
|
||||
standard has a nice set of rules just for this purpose and the
|
||||
arithmetics are organized in a specific way to take advantage of this.
|
||||
The shader interpreter component is relatively straightforward, just an
|
||||
expression evaluator stripped to the bare minimum – it doesn’t even
|
||||
support numerical constants natively. A final little bit is a
|
||||
just-good-enough PRNG (Pseudo Random Number Generator) to replace the
|
||||
low precision Windows <code>rand()</code> and the non-C99 Unix
|
||||
<code>drand48(3)</code>. An overnight session would run through its
|
||||
short period many times, but that doesn’t necessarily map to the same
|
||||
set of paths in <code>PSSMLT</code>. After all, Metropolis-Hasting used
|
||||
an even worse PRNG in their 1953 paper.</p>
|
||||
<p>The <code>PPM</code> compressor uses statically weighted fixed order
|
||||
contexts with an arithmetic encoder tweaked for <a
|
||||
href="../iocccsize.c">iocccsize.c</a>. The encoder emits octet-space
|
||||
pairs where each octet encodes ~6.5 bits of information and each space
|
||||
encodes 2 bits (thanks to the generous definition of “space” in <a
|
||||
href="../iocccsize.c">iocccsize.c</a>). The compressor actively shuffles
|
||||
the variable names around until the compressed string happens to contain
|
||||
enough <code>{};</code>s to pass the final <a
|
||||
href="../iocccsize.c">iocccsize.c</a> test. There are a few other
|
||||
tweaks:</p>
|
||||
<ul>
|
||||
<li><p>The <code>PPM</code> model uses mostly whitespace characters for
|
||||
weights.</p></li>
|
||||
<li><p>The encoder never emits <code>'"'</code> and
|
||||
<code>'\\'</code>.</p></li>
|
||||
<li><p>The decoder uses an O(n^2) algorithm to avoid the gigabytes-sized
|
||||
hash table frequently found in other <code>PPM</code>
|
||||
implementations.</p></li>
|
||||
</ul>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013hou"><a name="inventory"></a>Inventory for
|
||||
2013/hou</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/hou.c">hou.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/hou.orig.c">hou.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a href="doc/example.html">doc/example.html</a> - detailed
|
||||
information about entry</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/old_default.scene">old_default.scene</a>
|
||||
- sample input</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/otherroom.scene">otherroom.scene</a>
|
||||
- sample input</li>
|
||||
<li><a href="luna.jpg">luna.jpg</a> - sample image data</li>
|
||||
<li><a href="old_default.jpg">old_default.jpg</a> - sample image
|
||||
data</li>
|
||||
<li><a href="otherroom.jpg">otherroom.jpg</a> - sample image data</li>
|
||||
<li><a href="2013_hou.tar.bz2">2013_hou.tar.bz2</a> - download winning
|
||||
source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
<li><a href="doc/camera.png">doc/camera.png</a> - documentation support
|
||||
image</li>
|
||||
<li><a href="doc/cosine.png">doc/cosine.png</a> - documentation support
|
||||
image</li>
|
||||
<li><a href="doc/draft.png">doc/draft.png</a> - documentation support
|
||||
image</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/doc/example.md">doc/example.md</a>
|
||||
- markdown source for doc/example.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fhou%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+273
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,285 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/mills/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 mills</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: mills winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,mills,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/mills</title>
|
||||
<meta name="description" content="2013 IOCCC winner mills">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, mills">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 mills</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/mills</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fmills%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/mills/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../hou/index.html">← hou</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../misaka/index.html">misaka →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Christopher_Mills">Christopher
|
||||
Mills</a><br> Location: <a
|
||||
href="/temp-test-ioccc/location.html#US">US</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
|
||||
<p>The current status of this entry is:</p>
|
||||
<pre><code>STATUS: INABIAF - please **DO NOT** fix</code></pre>
|
||||
<p>For more detailed information see <a href="/bugs.md#2013-mills">2013
|
||||
mills in bugs.md</a>.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./mills</span></span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./mills</span> <span class="kw">&</span></span></code></pre></div>
|
||||
<p>While that is running, point your favorite browser at: <a
|
||||
href="http://localhost:8224">http://localhost:8224</a>.</p>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>Who will be the first to post an image rendered during a
|
||||
leap-second?</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="the-program">The Program</h3>
|
||||
<p>This program is a handy graphical clock. Simply run the program,
|
||||
click <em>OK</em> to any annoying security dialog that pop up (aren’t
|
||||
those annoying?), then fire up your web browser and type in the
|
||||
following URL: <a href="http://localhost:8224"
|
||||
class="uri">http://localhost:8224</a>.</p>
|
||||
<p>You will soon be presented with a lovely dynamically rendered 3D
|
||||
scene that also conveniently tells you the current time!</p>
|
||||
<h3 id="usage-notes">Usage Notes</h3>
|
||||
<p>The program will continue to give you the time of day as it changes
|
||||
by reloading the page as often as it can render. If you grow tired of
|
||||
watching your life slip by, hit <code>Control-C</code> in the original
|
||||
window. Note that if you want to restart the program again, you should
|
||||
wait a minute or two before doing so. For details as to why this is
|
||||
necessary, feel free to Google <code>"TIME_WAIT"</code>,
|
||||
<code>"SO_REUSEADDR"</code> and <code>"SO_REUSEPORT"</code> (with the
|
||||
quotes). And while you are there, click on an ad. They could use the
|
||||
money.</p>
|
||||
<p>It would be possible to fix this by adding</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode c"><code class="sourceCode c"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a>n<span class="op">=</span><span class="dv">1</span><span class="op">,</span>setsockopt<span class="op">(</span>s<span class="op">,</span>SOL_SOCKET<span class="op">,</span>SO_REUSEADDR<span class="op">,&</span>n<span class="op">,</span><span class="kw">sizeof</span> n<span class="op">),</span></span></code></pre></div>
|
||||
<p>at an appropriate spot in the code (an exercise left to the reader).
|
||||
However, as this limitation is documented, it is not technically a
|
||||
bug.</p>
|
||||
<h3 id="details-of-operation">Details of Operation</h3>
|
||||
<p>The program wears many hats (not literally). It is</p>
|
||||
<ul>
|
||||
<li>a web server</li>
|
||||
<li>a PNG encoder</li>
|
||||
<li>a ray tracer</li>
|
||||
<li>a clock</li>
|
||||
</ul>
|
||||
<p>It replies to web requests with a PNG image that uses the <a
|
||||
href="http://en.wikipedia.org/wiki/Adam7_algorithm">Adam7</a> encoding
|
||||
to return data progressively. Since the data is returned in Adam7
|
||||
format, the scene is displayed initially at a lower resolution and
|
||||
allowed to be progressively refined as time goes on. The ray tracer is
|
||||
integrally tied to the PNG encoder, casting rays in the Adam7 order. The
|
||||
web server uses PNG primarily because of PNG’s ability to return data
|
||||
progressively, and not as you might think it being because the PNG
|
||||
standard is so obfuscated as to require both little and big-endian
|
||||
encodings at different spec layers.</p>
|
||||
<p>Since ray-tracing was an obvious choice to return to a web server, I
|
||||
needed something to ray-trace. A static scene would be uninteresting. I
|
||||
took inspiration (as I often do) from the IOCCC remarks file which
|
||||
says</p>
|
||||
<blockquote>
|
||||
<p>At least one judge prefers to maintain the use of the leap-second as
|
||||
part of the world’s time standard.</p>
|
||||
</blockquote>
|
||||
<p>Then it was obvious; the code should display the time. It is believed
|
||||
(but not confirmed) that the code will, in fact, display leap seconds
|
||||
correctly.</p>
|
||||
<p>To display the time, of course we would need a font. This font is
|
||||
encoded as a string, using only the C whitespace characters. Clearly,
|
||||
the judges intended this use of whitespace for data compression, since
|
||||
their tool doesn’t count whitespace in strings differently than
|
||||
whitespace outside of them.</p>
|
||||
<h3 id="user-modifiable-features">User-modifiable Features</h3>
|
||||
<p>The code can be user-modified simply by changing the build command
|
||||
line. The following symbols are defined in the <a
|
||||
href="Makefile">Makefile</a>:</p>
|
||||
<ul>
|
||||
<li><p><code>-DLT=x1,y1,z1,x2,y2,z2,...</code> defines the coordinates
|
||||
of the lights in the scene. It should be a comma-separated list of
|
||||
coordinates <code>(x, y, z)</code>, three per light.</p></li>
|
||||
<li><p><code>-DNL=n</code> defines the number of lights. It should be
|
||||
equal to the length of the list above (three times the number of
|
||||
lights).</p></li>
|
||||
<li><p><code>-DEY=x,y,z</code> defines the position of the viewer (the
|
||||
eye point) for the scene. The eye is looking at the origin
|
||||
<code>(0, 0, 0)</code>.</p></li>
|
||||
</ul>
|
||||
<h3 id="other-build-flags">Other Build Flags</h3>
|
||||
<p>The original program bound the server to <code>INADDR_ANY</code> to
|
||||
allow everyone to experience the server’s output. The Judges suggested
|
||||
that I instead restrict the bind to <code>INADDR_LOOPBACK</code> to
|
||||
reduce security alarms. As a compliant veteran of innumerable post-ship
|
||||
late feature additions, I have modified the <a
|
||||
href="Makefile">Makefile</a> to inject the new code without destroying
|
||||
the beautiful spherical symmetry of the source code. In addition, I have
|
||||
altered the word <code>sin_port</code> to the more family-friendly
|
||||
version <code>win_port</code> (via
|
||||
<code>-Dwin_port="sin_addr.s_addr=htonl(2130706433),R.sin_port"</code>)
|
||||
to protect against curious impressionable youth trying to learn about
|
||||
sockets on the Internet.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013mills"><a name="inventory"></a>Inventory for
|
||||
2013/mills</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/mills/mills.c">mills.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/mills/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/mills/mills.orig.c">mills.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a href="2013_mills.tar.bz2">2013_mills.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/mills/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/mills/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/mills/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fmills%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+382
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,394 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/misaka/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 misaka</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: misaka winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,misaka,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/misaka</title>
|
||||
<meta name="description" content="2013 IOCCC winner misaka">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, misaka">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 misaka</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/misaka</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fmisaka%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/misaka/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../mills/index.html">← mills</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../morgan1/index.html">morgan1 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Don_Yang">Don Yang</a><br> Location:
|
||||
<a href="/temp-test-ioccc/location.html#US">US</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<p>This will build a bunch of versions of the code. See the author’s
|
||||
details for information on all of these builds.</p>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./horizontal_cat</span> <span class="pp">[</span><span class="ss">files...</span><span class="pp">]</span> <span class="op">></span> <span class="pp">[</span><span class="ss">output</span><span class="pp">]</span></span>
|
||||
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> <span class="pp">[</span><span class="ss">files...</span><span class="pp">]</span> <span class="op">></span> <span class="pp">[</span><span class="ss">output</span><span class="pp">]</span></span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<p>To understand the various intermediate source files that are built,
|
||||
try:</p>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span> understanding</span></code></pre></div>
|
||||
<p>Also try:</p>
|
||||
<div class="sourceCode" id="cb4"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
|
||||
<p>NOTE: Use - for standard input. For example:</p>
|
||||
<div class="sourceCode" id="cb5"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> <span class="at">-</span> <span class="at">-</span></span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>There is more to cat than <a
|
||||
href="http://cheezburger.com/1680494336">mere cats</a>. Be they tall,
|
||||
fat, long or squat, this source code is sure to amuse.</p>
|
||||
<h4 id="slight-diversion">Slight diversion</h4>
|
||||
<p>While one of the judges was reviewing this entry on the stern of the
|
||||
<a
|
||||
href="http://www.noble-caledonia.co.uk/information/detail.asp?id=2&spid=76">Island
|
||||
Sky</a> in the middle of the Atlantic Ocean waiting for the <a
|
||||
href="http://en.wikipedia.org/wiki/Solar_eclipse_of_November_3,_2013">total
|
||||
solar eclipse of 2013</a> the judge was struck by a <a
|
||||
href="http://en.wikipedia.org/wiki/Flying_fish">flying fish</a>. While
|
||||
the result of the impact was that the <a
|
||||
href="http://en.wikipedia.org/wiki/Port_wine">Port</a> from Portugal was
|
||||
lost, the <a
|
||||
href="https://web.archive.org/web/20130702003043/http://www.travelforpassion.com/grog-factory-cape-verde-santo-antao-cape-verde-1602-photo">Grog</a>
|
||||
from Cape Verde and the laptop containing this entry was saved.</p>
|
||||
<p>While I’m sure most <a
|
||||
href="https://rationalwiki.org/wiki/Fun:Cat">cats</a> would have
|
||||
preferred otherwise, the flying fish was returned to <em>swim with the
|
||||
fishes</em>. :-) No <a
|
||||
href="https://rationalwiki.org/wiki/Fun:Cat">cats</a> were harmed in the
|
||||
process of judging this entry.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="overview">Overview</h3>
|
||||
<p><code>Misaka</code> is a file concatenation utility, with at least
|
||||
two modes of operation:</p>
|
||||
<div class="sourceCode" id="cb6"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> misaka.c <span class="at">-o</span> horizontal_cat</span>
|
||||
<span id="cb6-2"><a href="#cb6-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./horizontal_cat</span> <span class="pp">[</span><span class="ss">files...</span><span class="pp">]</span> <span class="op">></span> <span class="pp">[</span><span class="ss">output</span><span class="pp">]</span></span>
|
||||
<span id="cb6-3"><a href="#cb6-3" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb6-4"><a href="#cb6-4" aria-hidden="true" tabindex="-1"></a><span class="ex">./horizontal_cat</span> misaka.c misaka.c <span class="op">></span> misaka2.c</span>
|
||||
<span id="cb6-5"><a href="#cb6-5" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> misaka2.c <span class="at">-o</span> vertical_cat</span>
|
||||
<span id="cb6-6"><a href="#cb6-6" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> <span class="pp">[</span><span class="ss">files...</span><span class="pp">]</span> <span class="op">></span> <span class="pp">[</span><span class="ss">output</span><span class="pp">]</span></span></code></pre></div>
|
||||
<p>Where <code>[files...]</code> is a list of text file names. Use
|
||||
<code>-</code> to read from <code>stdin</code>.</p>
|
||||
<h3 id="details">Details</h3>
|
||||
<h3 id="horizontal-cat">Horizontal cat</h3>
|
||||
<p>One of my favorite unix utilities is <code>cat</code>. The best thing
|
||||
about it was that it was named “<a
|
||||
href="https://rationalwiki.org/wiki/Fun:Cat">cat</a>”. That, and it’s
|
||||
useful for quickly showing contents of a file. Though it was primary
|
||||
meant for concatenating files, that function only seem to work if I
|
||||
wanted to concatenate files vertically.</p>
|
||||
<p>I thought the lack of horizontal concatenation must have been an
|
||||
oversight, so I implemented this utility:</p>
|
||||
<div class="sourceCode" id="cb7"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="fu">cc</span> misaka.c <span class="at">-o</span> horizontal_cat</span>
|
||||
<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a><span class="ex">./horizontal_cat</span> files...</span></code></pre></div>
|
||||
<p><code>horizontal_cat</code> concatenates files horizontally and write
|
||||
the output to <code>stdout</code>. Each input file is padded with spaces
|
||||
on the right so that the original text alignments are preserved.</p>
|
||||
<p>If <code>-</code> is specified as a file name,
|
||||
<code>horizontal_cat</code> will read from <code>stdin</code>. Unlike
|
||||
<code>cat</code>, <code>horizontal_cat</code> loads all input to memory
|
||||
first. Thus you can specify <code>-</code> multiple times to get
|
||||
<code>stdin</code> multiplied horizontally. For example, if you have
|
||||
<code>seq(1)</code> in your shell, you can add line numbers to both
|
||||
sides of <a href="misaka.c">misaka.c</a> like this:</p>
|
||||
<div class="sourceCode" id="cb8"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="fu">seq</span> <span class="at">-f</span> <span class="st">' %.0f '</span> 45 <span class="kw">|</span> <span class="ex">./horizontal_cat</span> <span class="at">-</span> misaka.c <span class="at">-</span></span></code></pre></div>
|
||||
<h3 id="vertical-cat">Vertical cat</h3>
|
||||
<p>Because <code>horizontal_cat</code> must know the maximum width of
|
||||
all files before writing any output, all files must be processed at
|
||||
least twice. To support <code>stdin</code>, file must be buffered to
|
||||
memory. This lead to the feature that <code>horizontal_cat</code> can be
|
||||
used to duplicate <code>stdin</code>.</p>
|
||||
<p>Seems like the <code>stdin</code> doubling feature might be useful
|
||||
even for concatenating files vertically, so I included a vertical mode.
|
||||
But supporting vertical mode with command line options would be no fun.
|
||||
Instead, vertical mode is enabled by concatenating the source code
|
||||
horizontally:</p>
|
||||
<div class="sourceCode" id="cb9"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./horizontal_cat</span> misaka.c misaka.c <span class="op">></span> misaka2.c</span>
|
||||
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> misaka2.c <span class="at">-o</span> vertical_cat</span>
|
||||
<span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> files...</span></code></pre></div>
|
||||
<p><code>vertical_cat</code> works more or less like <code>cat</code>,
|
||||
except you can use <code>vertical_cat</code> to duplicate
|
||||
<code>stdin</code>:</p>
|
||||
<div class="sourceCode" id="cb10"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> <span class="at">-</span> <span class="at">-</span></span></code></pre></div>
|
||||
<h3 id="long-cat">Long cat</h3>
|
||||
<p>After <code>horizontal_cat</code> and <code>vertical_cat</code>, I
|
||||
thought, maybe all I really wanted was just more <a
|
||||
href="https://rationalwiki.org/wiki/Fun:Cat">cats</a>. So I implemented
|
||||
one more mode, this one is enabled by concatenating <a
|
||||
href="misaka.c">misaka.c</a> vertically:</p>
|
||||
<div class="sourceCode" id="cb11"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> misaka.c misaka.c <span class="op">></span> misaka3.c</span>
|
||||
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> misaka3.c <span class="at">-o</span> long_cat</span>
|
||||
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a><span class="ex">./long_cat</span></span></code></pre></div>
|
||||
<p><code>long_cat</code> outputs ASCII art of a cat to
|
||||
<code>stdout</code>. You can make this cat exponentially longer by
|
||||
concatenating more files vertically (up to 31 levels high, depending on
|
||||
<code>sizeof(int)</code> for your compiler):</p>
|
||||
<div class="sourceCode" id="cb12"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> misaka.c misaka.c misaka.c <span class="op">></span> misaka4.c</span>
|
||||
<span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> misaka4.c <span class="at">-o</span> loong_cat</span>
|
||||
<span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> misaka.c misaka.c misaka.c misaka.c <span class="op">></span> misaka5.c</span>
|
||||
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> misaka5.c <span class="at">-o</span> loooong_cat</span>
|
||||
<span id="cb12-6"><a href="#cb12-6" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb12-7"><a href="#cb12-7" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> misaka.c misaka.c misaka.c misaka.c misaka.c <span class="op">></span> misaka6.c</span>
|
||||
<span id="cb12-8"><a href="#cb12-8" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> misaka6.c <span class="at">-o</span> loooooooong_cat</span></code></pre></div>
|
||||
<p>If your terminal has really thin fonts, you can also make this output
|
||||
fatter by concatenating files horizontally:</p>
|
||||
<div class="sourceCode" id="cb13"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> misaka.c misaka.c <span class="kw">|</span> <span class="ex">./horizontal_cat</span> <span class="at">-</span> <span class="at">-</span> <span class="op">></span> misaka7.c</span>
|
||||
<span id="cb13-2"><a href="#cb13-2" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> misaka7.c <span class="at">-o</span> long_fat_cat</span>
|
||||
<span id="cb13-3"><a href="#cb13-3" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb13-4"><a href="#cb13-4" aria-hidden="true" tabindex="-1"></a><span class="ex">./vertical_cat</span> misaka.c misaka.c <span class="kw">|</span> <span class="ex">./horizontal_cat</span> <span class="at">-</span> <span class="at">-</span> <span class="at">-</span> <span class="op">></span> misaka8.c</span>
|
||||
<span id="cb13-5"><a href="#cb13-5" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> misaka8.c <span class="at">-o</span> long_faat_cat</span></code></pre></div>
|
||||
<p>Output width is determined by the first level of stacked programs, so
|
||||
a triangle like the following will not have horizontally expanded
|
||||
output:</p>
|
||||
<div class="sourceCode" id="cb14"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb14-1"><a href="#cb14-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./horizontal_cat</span> misaka.c misaka.c <span class="kw">|</span> <span class="ex">./vertical_cat</span> misaka.c <span class="at">-</span> <span class="op">></span> misaka9.c</span>
|
||||
<span id="cb14-2"><a href="#cb14-2" aria-hidden="true" tabindex="-1"></a><span class="fu">gcc</span> misaka9.c <span class="at">-o</span> same_as_long_cat</span></code></pre></div>
|
||||
<p>Finally, if you lost track of how many <a
|
||||
href="misaka.c">misaka.c</a> you have stacked together, you can feed the
|
||||
source to a <a
|
||||
href="https://en.wikipedia.org/wiki/Brainfuck">brainfuck</a> interpreter
|
||||
to get an overview of how the programs are stacked. Example:</p>
|
||||
<div class="sourceCode" id="cb15"><pre
|
||||
class="sourceCode sh"><code class="sourceCode bash"><span id="cb15-1"><a href="#cb15-1" aria-hidden="true" tabindex="-1"></a><span class="fu">perl</span> bf.pl misaka9.c</span></code></pre></div>
|
||||
<p>This outputs:</p>
|
||||
<pre><code>MISAKA
|
||||
MISAKA MISAKA</code></pre>
|
||||
<h3 id="return-value">Return value</h3>
|
||||
<p><code>horizontal_cat</code> and <code>vertical_cat</code> will exit
|
||||
with zero status on success.</p>
|
||||
<p>If any input file fails to open, <code>horizontal_cat</code> and
|
||||
<code>vertical_cat</code> will report the offending file name to
|
||||
<code>stdout</code>, and exit with nonzero status.</p>
|
||||
<p>If <code>horizontal_cat</code> and <code>vertical_cat</code> ran out
|
||||
of memory, they will exit with nonzero status without outputting
|
||||
anything.</p>
|
||||
<h3 id="compatibility">Compatibility</h3>
|
||||
<p><code>horizontal_cat</code> makes the following assumptions about
|
||||
input files:</p>
|
||||
<ul>
|
||||
<li>ASCII with LF end of line sequences. If CR-LF sequences are used, CR
|
||||
characters will appear in the middle of output lines.</li>
|
||||
<li>All characters are of equal width, even tab characters.</li>
|
||||
</ul>
|
||||
<p><code>Misaka</code> has been verified to work on these following
|
||||
compiler+OS combinations:</p>
|
||||
<ul>
|
||||
<li>gcc 4.6.3 on Linux 3.5.0-41</li>
|
||||
<li>gcc 4.4.5 on Linux 2.6.32-5</li>
|
||||
<li>gcc 4.3.5 on JS/Linux 2.6.20</li>
|
||||
<li>gcc 4.8.1 on Windows (Cygwin and MingW)</li>
|
||||
</ul>
|
||||
<p><code>Misaka</code> requires a C99 compiler due to the use of single
|
||||
line comments. <code>Misaka</code> does not depend on any other C99
|
||||
features.</p>
|
||||
<h3 id="obfuscation">Obfuscation</h3>
|
||||
<p>Main obfuscation is in having a C program that compiles when tiled
|
||||
horizontally and vertically, while using single line comments in less
|
||||
than half of the lines <em>and</em> maintaining a meaningful layout
|
||||
while doing that.</p>
|
||||
<p>There are other challenges too, of course, like getting a Brainfuck
|
||||
program to tile horizontally and vertically. Really, tiling code of any
|
||||
sort horizontally is an interesting exercise, I encourage everyone to
|
||||
try this once.</p>
|
||||
<p>Other features to look for:</p>
|
||||
<ul>
|
||||
<li>Peculiar bits that switches horizontal cat to vertical cat.</li>
|
||||
<li>Run-length encoded long cat.</li>
|
||||
<li>Symmetric and recycled variable names.</li>
|
||||
<li>CRC of the source code in the source code.</li>
|
||||
</ul>
|
||||
<p><code>gcc -Wall</code> should provide a hint to where the mode switch
|
||||
happens, it does not output any irrelevant other warnings (verified on
|
||||
4.6.3).</p>
|
||||
<h3 id="extra-files">Extra files</h3>
|
||||
<p>Extra files included in my submission are informational only, they
|
||||
are not needed for the program to work.</p>
|
||||
<ul>
|
||||
<li><a href="bf.pl">bf.pl</a> - a perl brainfuck interpreter, in case
|
||||
you don’t have one handy.</li>
|
||||
<li><a href="spoiler.html">spoiler.html</a> - making of this
|
||||
program.</li>
|
||||
</ul>
|
||||
<h3 id="about-misaka">About <code>Misaka</code></h3>
|
||||
<p>The name, layout, and functionality of <code>Misaka</code> is
|
||||
inspired by a particular stackable figure:</p>
|
||||
<ul>
|
||||
<li><a
|
||||
href="http://google.co.jp/search?q=%E3%83%9F%E3%82%B5%E3%82%AB%E7%9B%9B%E3%82%8A&tbm=isch">Google
|
||||
images</a></li>
|
||||
<li><a
|
||||
href="https://web.archive.org/web/20140325175014/http://main.kotobukiya.co.jp/figure/tsubucole_tmi_misakamori/">Kotobukiya</a></li>
|
||||
</ul>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013misaka"><a name="inventory"></a>Inventory for
|
||||
2013/misaka</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/misaka/misaka.c">misaka.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/misaka/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/misaka/misaka.orig.c">misaka.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/misaka/bf.pl">bf.pl</a>
|
||||
- BF interpreter</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/misaka/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a href="spoiler.html">spoiler.html</a> - SPOILER WARNING</li>
|
||||
<li><a href="2013_misaka.tar.bz2">2013_misaka.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/misaka/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/misaka/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/misaka/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fmisaka%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+272
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,284 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/morgan1/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 morgan1</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: morgan1 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,morgan1,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/morgan1</title>
|
||||
<meta name="description" content="2013 IOCCC winner morgan1">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, morgan1">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 morgan1</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/morgan1</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fmorgan1%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/morgan1/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../misaka/index.html">← misaka</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../morgan2/index.html">morgan2 →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Yves-Marie_Morgan">Yves-Marie
|
||||
Morgan</a><br> Location: <a
|
||||
href="/temp-test-ioccc/location.html#FR">FR</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"2013/10/03"</span> <span class="kw">|</span> <span class="ex">./morgan1</span></span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"1985/10/28"</span> <span class="kw">|</span> <span class="ex">./morgan1</span></span>
|
||||
<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"1996/12/31"</span> <span class="kw">|</span> <span class="ex">./morgan1</span></span>
|
||||
<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"1986/03/31"</span> <span class="kw">|</span> <span class="ex">./morgan1</span> <span class="co"># Comet Halley (look for 'Ha')</span></span>
|
||||
<span id="cb3-6"><a href="#cb3-6" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb3-7"><a href="#cb3-7" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> <span class="st">"1997/04/01"</span> <span class="kw">|</span> <span class="ex">./morgan1</span> <span class="co"># Comet Hale-Bopp (look for 'Hb')</span></span></code></pre></div>
|
||||
<p>Try pressing the arrow keys when your focus is in the window.</p>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>To verify the output, try echoing the date of an evening with a clear
|
||||
sky. Use binoculars and/or telescope as needed. In some cases you may
|
||||
need to wait for a better time of the evening. In a few cases, such as
|
||||
the South Pole in the summer, you may need to move to a different
|
||||
observing site.</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="instructions">Instructions</h3>
|
||||
<p>It displays the position of the 8 planets of the solar system around
|
||||
the Sun. The date given in the command line is in the format YYYY/MM/DD
|
||||
(year, month and day). The direction keys can be used to move in time
|
||||
:</p>
|
||||
<ul>
|
||||
<li>Left : go back 1 day.</li>
|
||||
<li>Right : go forward 1 day.</li>
|
||||
<li>Down : go back 20 days.</li>
|
||||
<li>Up : go forward 20 days.</li>
|
||||
</ul>
|
||||
<p>It handles correctly all leap years and the switch between <a
|
||||
href="https://en.wikipedia.org/wiki/Julian_calendar">Julian calendar</a>
|
||||
and <a href="https://en.wikipedia.org/wiki/Gregorian_calendar">Gregorian
|
||||
calendar</a> (10 days missing between 1582/10/04 and 1582/10/15).</p>
|
||||
<p>The scale is logarithmic to be able to display the <a
|
||||
href="http://news.bbc.co.uk/2/hi/5282440.stm">8 planets</a> without
|
||||
having <a href="https://science.nasa.gov/mercury">Mercury</a>, <a
|
||||
href="https://science.nasa.gov/venus/">Venus</a>, <a
|
||||
href="https://science.nasa.gov/earth/facts">Earth</a> and <a
|
||||
href="https://science.nasa.gov/mars">Mars</a> squeezed around the <a
|
||||
href="https://science.nasa.gov/sun/">Sun</a>.</p>
|
||||
<p>The size is not proportional either.</p>
|
||||
<h3 id="bonus">Bonus</h3>
|
||||
<p>It also displays the position of 2 famous comets during their last
|
||||
approach:</p>
|
||||
<ul>
|
||||
<li>The <a
|
||||
href="https://science.nasa.gov/solar-system/comets/1p-halley/">first
|
||||
one</a> around the <a href="/years.html#1986">third IOCCC</a>.</li>
|
||||
<li>The <a
|
||||
href="https://science.nasa.gov/solar-system/comets/c-1995-o1-hale-bopp/">second
|
||||
one</a> between the <a href="/years.html#1996">thirteenth</a> and <a
|
||||
href="/years.html#1998">fourteenth</a> IOCCC.</li>
|
||||
</ul>
|
||||
<h3 id="limitations">Limitations</h3>
|
||||
<ul>
|
||||
<li>ASCII character set is assumed.</li>
|
||||
<li>A C99 compiler is required (for some <code>math.h</code>
|
||||
functions).</li>
|
||||
<li>The position should be correct for years between (-1000; +3000)</li>
|
||||
<li>The approximations done in the formula are OK for displaying the
|
||||
position around the <a href="https://science.nasa.gov/sun/">Sun</a> but
|
||||
not for other applications like <a
|
||||
href="https://en.wikipedia.org/wiki/Ephemeris">ephemeride</a> or sky
|
||||
view from <a href="https://science.nasa.gov/earth/facts">Earth</a>
|
||||
(angles may be off by 1 or 2 degrees sometimes).</li>
|
||||
</ul>
|
||||
<h3 id="obfuscation">Obfuscation</h3>
|
||||
<ul>
|
||||
<li>Reuse of 1 letter variables.</li>
|
||||
<li>Only the <code>main()</code> function with some <code>for</code>
|
||||
loops.</li>
|
||||
<li>Constants for orbital elements encoded in a string.</li>
|
||||
<li>Hexadecimal and decimal values used inconsistently.</li>
|
||||
<li>Comparisons order are not consistent.</li>
|
||||
<li>A lot of stuff is done in the different parts of the
|
||||
<code>for</code> loop.</li>
|
||||
</ul>
|
||||
<h3 id="compilation-warnings">Compilation warnings</h3>
|
||||
<p>With gcc 4.7.2 on Linux Ubuntu 12.10:</p>
|
||||
<pre><code>morgan1.c:38:3: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
|
||||
morgan1.c:40:34: warning: value computed is not used [-Wunused-value]
|
||||
morgan1.c:56:6: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
|
||||
morgan1.c:58:50: warning: value computed is not used [-Wunused-value]
|
||||
morgan1.c:61:5: warning: suggest parentheses around ‘-’ inside ‘>>’ [-Wparentheses]</code></pre>
|
||||
<p>With clang 3.1 on Linux Ubuntu 12.10 :</p>
|
||||
<pre><code>morgan1.c:38:49: warning: '&&' within '||' [-Wlogical-op-parentheses]
|
||||
morgan1.c:38:27: warning: '&&' within '||' [-Wlogical-op-parentheses]
|
||||
morgan1.c:55:13: warning: '&&' within '||' [-Wlogical-op-parentheses]
|
||||
morgan1.c:56:14: warning: '&&' within '||' [-Wlogical-op-parentheses]</code></pre>
|
||||
<p>This is due to most of the parentheses and braces being removed when
|
||||
unnecessary.</p>
|
||||
<p>To verify the display, you can look at one of these programs : *
|
||||
xephem : <a
|
||||
href="https://web.archive.org/web/20130310133219/http://www.clearskyinstitute.com/xephem/"
|
||||
class="uri">https://web.archive.org/web/20130310133219/http://www.clearskyinstitute.com/xephem/</a>
|
||||
* homeplanet : <a href="https://www.fourmilab.ch/homeplanet/"
|
||||
class="uri">https://www.fourmilab.ch/homeplanet/</a> * <a
|
||||
href="https://www.theplanetstoday.com"
|
||||
class="uri">https://www.theplanetstoday.com</a></p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013morgan1"><a name="inventory"></a>Inventory for
|
||||
2013/morgan1</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan1/morgan1.c">morgan1.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan1/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan1/morgan1.orig.c">morgan1.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a href="2013_morgan1.tar.bz2">2013_morgan1.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan1/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan1/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan1/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fmorgan1%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+273
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,285 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/morgan2/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 morgan2</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: morgan2 winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,morgan2,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/morgan2</title>
|
||||
<meta name="description" content="2013 IOCCC winner morgan2">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, morgan2">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 morgan2</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/morgan2</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.mid.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fmorgan2%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/morgan2/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../morgan1/index.html">← morgan1</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left" href="../robison/index.html">robison →</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.mid.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Yves-Marie_Morgan">Yves-Marie
|
||||
Morgan</a><br> Location: <a
|
||||
href="/temp-test-ioccc/location.html#FR">FR</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<p>For the console version (ncurses):</p>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./morgan2</span></span></code></pre></div>
|
||||
<p>For the graphical version (X11):</p>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./morgan2</span> X</span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>The judges enjoyed playing the game almost to completion; if we
|
||||
remember correctly, we managed to place 59 or 60 dominoes. We wonder,
|
||||
what would be faster: to play the game to completion or to write an
|
||||
unobfuscated version of it?</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<p>This program is a domino game. The goal is to place dominoes on the
|
||||
8x8 grid. Each domino is made of 6 squares of the colour red or green.
|
||||
To place a domino, at least one of its side shall match the other side
|
||||
of another domino.</p>
|
||||
<h3 id="how-to-play">How to play</h3>
|
||||
<h3 id="start-of-the-game">Start of the game</h3>
|
||||
<p>At the start of the game, the first domino is placed randomly on the
|
||||
grid. You get another domino to place by selecting one empty position in
|
||||
the stack on the right. You can have up to 8 dominoes pending at any
|
||||
time.</p>
|
||||
<h3 id="moving-in-the-stack">Moving in the stack</h3>
|
||||
<p>Use <code>Up</code> and <code>Down</code> key to move the cursor in
|
||||
the stack. Press <code>Enter</code> to either:</p>
|
||||
<ul>
|
||||
<li>Reveal a new domino if the position was empty.</li>
|
||||
<li>Select the domino to try to place it if the position was not
|
||||
empty.</li>
|
||||
</ul>
|
||||
<p>The currently selected domino is indicated on the top right.</p>
|
||||
<h3 id="placing-a-domino">Placing a domino</h3>
|
||||
<p>Once a domino has been selected, the cursor moves to the grid. Use
|
||||
<code>Up</code>, <code>Down</code>, <code>Left</code> and
|
||||
<code>Right</code> keys to move in the grid. Press <code>Enter</code> on
|
||||
an empty position to place the domino.</p>
|
||||
<p>To go back to selection mode, press <code>Enter</code> on an occupied
|
||||
position.</p>
|
||||
<p>The domino can be placed in an empty position if all its neighbours
|
||||
have matching sides and the domino has at least one neighbour.</p>
|
||||
<h3 id="scoring">Scoring</h3>
|
||||
<p>First, depending on the number of dominoes pending in the stack, a
|
||||
bonus is accorded:</p>
|
||||
<ul>
|
||||
<li>1 domino in the stack: 8 points.</li>
|
||||
<li>2 dominoes in the stack: 4 points.</li>
|
||||
<li>3 or 4 dominoes in the stack: 2 points.</li>
|
||||
<li>5 or more dominoes in the stack: 0 points.</li>
|
||||
</ul>
|
||||
<p>Then the bonus is multiplied by the number of matching neighbours the
|
||||
placed domino has (1, 2, 3 or 4). This is added to the score.</p>
|
||||
<p>Finally, the total score is divided by the number of dominoes placed
|
||||
(1 - 64).</p>
|
||||
<p>The 3 numbers on display represent: the total score, the fill count
|
||||
and the final score (total score divided by fill count).</p>
|
||||
<h3 id="end-of-the-game">End of the game</h3>
|
||||
<p>The game is finished when no more dominoes can be placed and if one
|
||||
of the following occurs:</p>
|
||||
<ul>
|
||||
<li>You have completely filled the grid.</li>
|
||||
<li>You have 8 pending dominoes in the stack.</li>
|
||||
<li>No more dominoes can be revealed in the stack (more than 56 dominoes
|
||||
placed on the grid).</li>
|
||||
</ul>
|
||||
<p><strong>Note</strong>: There is no real end of game detection
|
||||
implemented in the program, simply press <code>q</code> when you have
|
||||
finished…</p>
|
||||
<h3 id="strategy">Strategy</h3>
|
||||
<ul>
|
||||
<li>Try to minimize the number of dominoes revealed in the stack. The
|
||||
lower the number, the higher the bonus.</li>
|
||||
<li>Each domino is unique and all combination of colours exists, so keep
|
||||
track of what is already placed and what is left.</li>
|
||||
<li>Make sure you don’t render dead some positions by preventing a
|
||||
future placement. If the corner of a domino does not match another
|
||||
corner diagonally, the move is valid but will prevent some future
|
||||
moves.</li>
|
||||
</ul>
|
||||
<h3 id="limitations">Limitations</h3>
|
||||
<ul>
|
||||
<li>ASCII character set is assumed.</li>
|
||||
<li>Requires both ncurses and X11 at compilation and runtime, but
|
||||
selection could be done at compilation with some extra code (mainly
|
||||
empty stubs).</li>
|
||||
</ul>
|
||||
<h3 id="obfuscation">Obfuscation</h3>
|
||||
<ul>
|
||||
<li>1 letter identifiers, reused when possible.</li>
|
||||
<li>1 algorithm, 2 different kinds of display (ncurses and X11)
|
||||
mixed.</li>
|
||||
<li>No parameters to functions, all variables are global and
|
||||
shared.</li>
|
||||
<li>Some variables are not initialized if they have a known value at the
|
||||
time of use.</li>
|
||||
</ul>
|
||||
<h3 id="compilation-warnings">Compilation warnings</h3>
|
||||
<p>With gcc 4.7.2 on Linux Ubuntu 12.10 :</p>
|
||||
<pre><code>morgan2.c:46:65: warning: value computed is not used [-Wunused-value]</code></pre>
|
||||
<p>With clang 3.1 on Linux Ubuntu 12.10 :</p>
|
||||
<pre><code>morgan2.c:23:24: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]</code></pre>
|
||||
<p><strong>!!!!! HAVE FUN !!!!!</strong></p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013morgan2"><a name="inventory"></a>Inventory for
|
||||
2013/morgan2</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan2/morgan2.c">morgan2.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan2/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan2/morgan2.orig.c">morgan2.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a href="2013_morgan2.tar.bz2">2013_morgan2.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan2/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan2/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/morgan2/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Fmorgan2%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
+255
-13
@@ -1,4 +1,6 @@
|
||||
<!DOCTYPE html>
|
||||
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
|
||||
<!-- START: two lines up starts content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
@@ -6,27 +8,267 @@
|
||||
<!-- !!! DO NOT MODIFY THIS FILE - This file is generated by a tool !!! -->
|
||||
<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
|
||||
<!-- -->
|
||||
<!-- file: 2013/robison/index.html created by: fake.gen_index.sh version: 1.0.5 2023-10-31 -->
|
||||
<html lang="en">
|
||||
<!-- END: this line ends content from: inc/top.default.html -->
|
||||
<!-- -->
|
||||
<!-- This file was formed by the tool: bin/readme2index.sh version: 1.1 2024-01-16 -->
|
||||
<!-- -->
|
||||
<!-- START: this line starts content from: inc/head.default.html -->
|
||||
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>2013 robison</title>
|
||||
<meta name="description" content="IOCCC year: 2013 IOCCC winner: robison winner index page">
|
||||
<meta name="keywords" content="IOCCC,2013,robison,winner index page">
|
||||
<link rel="stylesheet" href="/temp-test-ioccc/ioccc.css">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||||
<title>2013/robison</title>
|
||||
<meta name="description" content="2013 IOCCC winner robison">
|
||||
<meta name="keywords" content="IOCCC, 2013, IOCCC 2013, IOCCC winner, robison">
|
||||
</head>
|
||||
|
||||
<!-- END: this line ends content from: inc/head.default.html -->
|
||||
<!-- START: this line starts content from: inc/body.default.html -->
|
||||
|
||||
<body>
|
||||
|
||||
<h1>2013 robison</h1>
|
||||
<!-- END: this line ends content from: inc/body.default.html -->
|
||||
<!-- START: this line starts content from: inc/header.default.html -->
|
||||
|
||||
<p>XXX - fake content until readme2index is working - XXX</p>
|
||||
<div class="header">
|
||||
<img src="/temp-test-ioccc/png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
|
||||
<h1>The International Obfuscated C Code Contest</h1>
|
||||
<h2>2013/robison</h2>
|
||||
</div>
|
||||
|
||||
<hr style="width:50%;text-align:left;margin-left:0">
|
||||
<!-- END: this line ends content from: inc/header.default.html -->
|
||||
<!-- START: this line starts content from: inc/topnav.last.html -->
|
||||
|
||||
<!-- Start Nu Html Checker -->
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Frobison%2Findex.html">Nu Html check https://ioccc-src.github.io/temp-test-ioccc/2013/robison/index.html</a></p>
|
||||
<!-- End Nu Html Checker -->
|
||||
<div class="topnav">
|
||||
<a class="Left" href="../morgan2/index.html">← morgan2</a>
|
||||
<a class="Left" href="../index.html">↑ 2013 ↑</a>
|
||||
<a class="Left Disabled" href="#">last entry</a>
|
||||
<a class="Right" href="#inventory">Inventory</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/topnav.last.html -->
|
||||
<!-- START: this line starts content from: inc/begin-row.default.html -->
|
||||
|
||||
<div class="row">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-leftcolumn.default.html -->
|
||||
|
||||
<div class="leftcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/sidenav.default.html -->
|
||||
|
||||
<div class="sidenav">
|
||||
<a href="#content">Jump to contents</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/index.html">IOCCC Home</a>
|
||||
<a href="/temp-test-ioccc/years.html">Winning Entries</a>
|
||||
<a href="/temp-test-ioccc/winners.html">People who have won</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/news.html">IOCCC News</a>
|
||||
<a href="/temp-test-ioccc/faq.html#submit">How to enter the IOCCC</a>
|
||||
<a href="/temp-test-ioccc/faq.html">FAQ</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/bugs.html">Bugs & (mis)features</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_a_winner">Fixing IOCCC winners</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_web_site">Fixing the web site</a>
|
||||
<a href="/temp-test-ioccc/faq.html#fix_author">Fixing winner info</a>
|
||||
<a href="/temp-test-ioccc/thanks-for-help.html">Thanks for the help</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="/temp-test-ioccc/judges.html">The IOCCC Judges</a>
|
||||
<a href="/temp-test-ioccc/contact.html">Contacting the IOCCC</a>
|
||||
</div>
|
||||
<hr>
|
||||
<div class="sidenav">
|
||||
<a href="#top">Jump to top</a>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/sidenav.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-leftcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-leftcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/begin-rightcolumn.default.html -->
|
||||
|
||||
<div class="rightcolumn">
|
||||
|
||||
<!-- END: this line ends content from: inc/begin-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/before-content.default.html -->
|
||||
|
||||
<a name="content"></a>
|
||||
|
||||
<!-- END: this line ends content from: inc/before-content.default.html -->
|
||||
<!-- START: this line starts content generated by: bin/gen-author.sh -->
|
||||
|
||||
<p><a name="author"><strong>Author:</strong></a> <br><br>Name: <a
|
||||
href="/temp-test-ioccc/winners.html#Arch_D_Robison">Arch D.
|
||||
Robison</a><br> Location: <a
|
||||
href="/temp-test-ioccc/location.html#US">US</a></p>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-author.sh -->
|
||||
<h2 id="to-build">To build:</h2>
|
||||
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="fu">make</span></span></code></pre></div>
|
||||
<h2 id="to-use">To use:</h2>
|
||||
<div class="sourceCode" id="cb2"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./robison</span></span>
|
||||
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="co"># enter an expression</span></span>
|
||||
<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a></span>
|
||||
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="bu">echo</span> expression <span class="kw">|</span> <span class="ex">./robison</span></span></code></pre></div>
|
||||
<h2 id="try">Try:</h2>
|
||||
<div class="sourceCode" id="cb3"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">./try.sh</span></span></code></pre></div>
|
||||
<h2 id="judges-remarks">Judges’ remarks:</h2>
|
||||
<p>Of integers this prog does a lot,<br />
|
||||
plus minus, div times (and what not).</p>
|
||||
<p>And modulus if remainders the needing,<br />
|
||||
on standard input percent be feeding.</p>
|
||||
<p>More than one line can thru give input,<br />
|
||||
when interactive one values more than throughput.</p>
|
||||
<p>With cut and paste and some time,<br />
|
||||
one can compute M(23209).</p>
|
||||
<h2 id="authors-remarks">Author’s remarks:</h2>
|
||||
<h3 id="oh-the-strings-you-can-c">Oh, The Strings You Can C!</h3>
|
||||
<p>I love the C language; its terseness is tops.<br />
|
||||
But the thing I abhor is numerical ops!</p>
|
||||
<p>No shifting, division, remainder, or times.<br />
|
||||
No increment, decrement, or subscripting blech,<br />
|
||||
No addition, subtraction, or bitwise bool glop.<br />
|
||||
As for pointer arithmetic – totally yech!</p>
|
||||
<p>But I do have a pref’rence, for pointer deref’rence.<br />
|
||||
I find NOTS are a bang, and relations a ball.<br />
|
||||
I like calling routines, and recursions in essence.<br />
|
||||
But the thing I like MOST is a string dot h CALL!</p>
|
||||
<p>With mem copy I copy, and mem set I clear.<br />
|
||||
Take string len of this, and string copy that.<br />
|
||||
From my keyboard I pause, to hear subroutines dear:<br />
|
||||
The bark of string chrr, and the purr of string CAT!</p>
|
||||
<p>One tiny detail that could lead to defeat.<br />
|
||||
From where an arg points: string calls only go forth,<br />
|
||||
So how to go back, to be Turing complete?<br />
|
||||
From standard dot H, to the rescue, q SORT!</p>
|
||||
<p>My fixation might hint at a textual bent.<br />
|
||||
Does my program compose a tattoo for your shin?<br />
|
||||
Play crosswords or translate from Urdu to Tzouby?<br />
|
||||
To give it a whirl, just punch 2 + 2 in.</p>
|
||||
<p>You can add, do division, and multiply too.<br />
|
||||
Take unary minus and also subtract.<br />
|
||||
Summing hairs of a walrus? No longer a fuss.<br />
|
||||
Parenthetical grouping – no pushing a stack!</p>
|
||||
<p>Try dividing a <a
|
||||
href="https://en.wikipedia.org/wiki/Googol">googol</a> by one forty
|
||||
three,<br />
|
||||
Subtract an <a
|
||||
href="https://en.wikipedia.org/wiki/Names_of_large_numbers">octillion</a>
|
||||
- it’s simply divine.<br />
|
||||
To compute a remainder, inscribe a percent.<br />
|
||||
For the sign of the answer, see C ninety nine!</p>
|
||||
<p>A hundred and twenty five digits or so,<br />
|
||||
Are the lengthiest figures the program can gnash.<br />
|
||||
Go over that limit, by even a digit:<br />
|
||||
Risk incorrect answers, or witness a crash!</p>
|
||||
<p>Say, say, does it have octal or binary zen?<br />
|
||||
What about duodecimal, ternary, hex?<br />
|
||||
Try the base as an option (of course in base ten)<br />
|
||||
Any base two to twenty – for that is the specs.</p>
|
||||
<p>Use lowercase in trans-decimal radix,<br />
|
||||
Divide <em>babbage</em> (in base seventeen) by <em>cafe</em> –<br />
|
||||
a nice <em>fad</em>, but avoid a division by nix:<br />
|
||||
No errant result, but you could wait all day!</p>
|
||||
<p>To grok the internals, ask <a
|
||||
href="https://en.wikipedia.org/wiki/Cleopatra">Queen
|
||||
Cleopatra</a>,<br />
|
||||
or <a href="https://en.wikipedia.org/wiki/Tutankhamun">King
|
||||
Tutankhamun</a>; for him it’s a romp.<br />
|
||||
Addition by cats, and if given two figures,<br />
|
||||
to tell which is bigger, sort down and string CMP!</p>
|
||||
<p>Unlawful subtraction, a grade school infraction,<br />
|
||||
starts at the left and works to the right.<br />
|
||||
Yet more innovation: like <a
|
||||
href="https://en.wikipedia.org/wiki/Ford_Motor_Company">Henry Ford’s
|
||||
cars</a>,<br />
|
||||
With a pound and define, mass production of vars!</p>
|
||||
<p>The moral is clear, for programmers out there:<br />
|
||||
With the C lib for strings, you can hack with a flair.</p>
|
||||
<h2 id="copyright-and-cc-by-sa-4.0-license">Copyright and CC BY-SA 4.0
|
||||
License:</h2>
|
||||
<p>This file is Copyright (c) 2023 by Landon Curt Noll. All Rights
|
||||
Reserved. You are free to share and adapt this file under the terms of
|
||||
this license:</p>
|
||||
<pre><code>Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)</code></pre>
|
||||
<p>For more information, see:
|
||||
https://creativecommons.org/licenses/by-sa/4.0/</p>
|
||||
<!-- START: this line starts content generated by: bin/gen-inventory.sh -->
|
||||
|
||||
<h1 id="inventory-for-2013robison"><a name="inventory"></a>Inventory for
|
||||
2013/robison</h1>
|
||||
<h2 id="primary-files">Primary files</h2>
|
||||
<ul>
|
||||
<li><a href="index.html">index.html</a> - winner home page</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/robison/robison.c">robison.c</a>
|
||||
- winning source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/robison/Makefile">Makefile</a>
|
||||
- winner Makefile</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/robison/robison.orig.c">robison.orig.c</a>
|
||||
- original source</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/robison/try.sh">try.sh</a>
|
||||
- how to run</li>
|
||||
<li><a href="2013_robison.tar.bz2">2013_robison.tar.bz2</a> - download
|
||||
winning source</li>
|
||||
</ul>
|
||||
<h2 id="secondary-files">Secondary files</h2>
|
||||
<ul>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/robison/.gitignore">.gitignore</a>
|
||||
- list of files that should not be committed under git</li>
|
||||
<li><a href=".path">.path</a> - directory path from top directory</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/robison/.winner.json">.winner.json</a>
|
||||
- description of winner in JSON</li>
|
||||
<li><a
|
||||
href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/robison/README.md">README.md</a>
|
||||
- markdown source for index.html</li>
|
||||
</ul>
|
||||
|
||||
<!-- END: next line ends content generated by: bin/gen-inventory.sh -->
|
||||
<!-- START: this line starts content from: inc/after-content.default.html -->
|
||||
|
||||
<!-- END: this line ends content from: inc/after-content.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-rightcolumn.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-rightcolumn.default.html -->
|
||||
<!-- START: this line starts content from: inc/end-row.default.html -->
|
||||
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/end-row.default.html -->
|
||||
<!-- START: this line starts content from: inc/footer.default.html -->
|
||||
|
||||
<div class="footer">
|
||||
<hr>
|
||||
<h2>Coda</h2>
|
||||
<p><a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2013%2Frobison%2Findex.html">Nu HTML check this web page</a></p>
|
||||
<p><a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a></p>
|
||||
</div>
|
||||
|
||||
<!-- END: this line ends content from: inc/footer.default.html -->
|
||||
<!-- START: this line starts content from: inc/bottom.default.html -->
|
||||
|
||||
</body>
|
||||
</html>
|
||||
|
||||
<!-- END: this line ends content from: inc/bottom.default.html -->
|
||||
Reference in new issue
Block a user