Files
Landon Curt Noll a1c86c8a7a add original C links to entry navigation bars
The navigation bar for a winning entry now has a "_Original C_" link
(between the ✅ and the Inventory on the right hand side) so that one
may easily view the original C code that was submitted for IOCCC judging.

Ran `make www timestamp` to perform the above.
2025-08-10 12:46:23 -07:00

638 lines
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<div class="header">
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<h1>The International Obfuscated C Code Contest</h1>
<h2>1995/heathbar - Best layout</h2>
<h3>16 bit addition the easy/hard way</h3>
</div>
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<div class="navbar">
<a class="Left" href="../garry/index.html">&larr; 1995/garry</a>
<a class="Left" href="../index.html">&uarr; 1995 &uarr;</a>
<a class="Left" href="../leo/index.html">1995/leo &rarr;</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/heathbar.c">C code</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/Makefile">Makefile</a>
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<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/heathbar.orig.c">Original C</a>
<a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F1995%2Fheathbar%2Findex.html">&#x2713;</a>
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<div id="author">
<h2 id="authors">Authors:</h2>
</div>
<ul>
<li>Name: <a href="../../authors.html#Heather_Downs">Heather Downs</a><br>
Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)
<br><br></li>
<li>Name: <a href="../../authors.html#Selene_Makarios">Selene Makarios</a><br>
Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)</li>
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<h2 id="to-build">To build:</h2>
<pre><code> make all</code></pre>
<h2 id="to-use">To use:</h2>
<pre><code> ./heathbar num num</code></pre>
<p>where num is a non-negative number.</p>
<h2 id="try">Try:</h2>
<pre><code> ./try.sh</code></pre>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>The main reason we liked this entry was mainly because the main
effect of the source was self documenting! :-)</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>Run this program with two non-negative integer arguments
(e.g. <code>./heathbar 1234 999</code>).</p>
<p>My goal was to create the fastest possible C program. To that
end, I made three critical observations:</p>
<ol type="1">
<li>If there’s one thing computers are good at, it’s math.</li>
<li>Simple operations take less time than complicated ones.</li>
<li>Every C program seems to contain the word <code>main</code>.</li>
</ol>
<p>Based on #1, I knew that the Fastest Program had to be one that
performed addition. From #2, I reasoned that it ought to directly
manipulate the bits, rather than wasting time dealing with bloated,
high-level, fuzzy-logic, artificial-intelligence, neural-net,
client-server, object-oriented abstractions like the C language “+”
operator. And it was obvious from #3 that the program should
resemble, as closely as possible, a long sequence of the familiar
word <code>main</code> repeated over and over, so the computer would be
comfortable running the program and wouldn’t get distracted dealing
with unfamiliar variable names.</p>
<p>Also, I’ve looked at some past winning entries of your contest, and
if you don’t mind a little constructive criticism, some of them are
kind-of hard to figure out. I didn’t want my program to fall into
the same trap, so I went out of my way to write self-documenting
code. Anyone who so much as glances at my program will immediately
see that it adds two 16-bit unsigned integers by streaming their
bits through a simulated cascade of hardware adders. I hope my
diligent effort to write especially clear code gets me extra points!</p>
<p>P.S. What does “obfuscated” mean?</p>
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<div id="inventory">
<h1 id="inventory-for-1995heathbar">Inventory for 1995/heathbar</h1>
</div>
<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/heathbar.c">heathbar.c</a> - entry source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/Makefile">Makefile</a> - entry Makefile</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/heathbar.orig.c">heathbar.orig.c</a> - original source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/try.sh">try.sh</a> - script to try entry</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a href="1995_heathbar.tar.bz2">1995_heathbar.tar.bz2</a> - download entry tarball</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/README.md">README.md</a> - markdown source for this web page</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/.entry.json">.entry.json</a> - entry summary and manifest in JSON</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/1995/heathbar/.path">.path</a> - directory path from top level directory</li>
<li><a href="index.html">index.html</a> - this web page</li>
</ul>
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<p>
This work is <b>licensed by Landon Curt Noll</b> under
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</div>
<div id="coda"><h3>Coda</h3>
<p>
<a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F1995%2Fheathbar%2Findex.html" rel="nofollow">Nu HTML check this web page</a><br>
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