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-<!DOCTYPE html>
-<html>
-    <head>
-  <meta charset="utf-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-  <title>Matrix Rain: 2025 refactor</title>
-  <link rel="stylesheet" href="/assets/css/main.css">
-  <link rel="stylesheet" href="/assets/css/skeleton.css">
-</head>
-
-
-  <body>
-
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-  <ul id="navlist" class="left">
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-    <main>
-      <div class="container">
-        <div class="container-2">
-          <h2 class="center" id="title">MATRIX RAIN: 2025 REFACTOR</h2>
-          <h5 class="center">21 DECEMBER 2025</h5>
-          <br>
-          <div class="twocol justify"><p>The 2022 version worked but had some loose ends. Unicode support was
-inflexible–couldn’t mix ASCII with Katakana; Phosphor decay was stored in a
-separate array when it should’ve been packed with RGB; Code was harder to read
-than it needed to be.</p>
-
-<video style="max-width:100%;" controls="" poster="poster.png">
-  <source src="matrix.mp4" type="video/mp4" />
-</video>
-
-<p>Moved phosphor decay into the 4th byte of the RGB union–should’ve done this 
-in 2022; What was I thinking.</p>
-
-<p>Keeping the RGB union despite portability concerns. All my systems are
-little-endian and the code is cleaner this way.</p>
-
-<p>Fixed Unicode by introducing a charset array. UNICODE(min, max) packs Unicode
-ranges into uint64: low four bytes for start, high four bytes for end.
-insert_code() unpacks a random block and picks a character from it:</p>
-
-<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>#define UNICODE(min, max)  (((uint64_t)max &lt;&lt; 32) | min)
-
-static uint64_t glyphs[] = {
-    UNICODE(0x0021, 0x007E), /* ASCII */
-    UNICODE(0xFF65, 0xFF9F), /* Half-width Katakana */
-};
-
-static inline void insert_code(matrix *mat,
-    size_t row, size_t col) 
-{
-    uint64_t blk;
-    uint32_t min, max;
-
-    blk = glyphs[(rand() % glyphlen)];
-    min = (uint32_t)blk;
-    max = (uint32_t)(blk &gt;&gt; 32);
-    mat-&gt;code[index(mat, row, col)] = rand() % (max - min) + min;
-}
-</code></pre></div></div>
-
-<p>Full-width Katakana breaks column alignment. Stick to half-width
-(U+FF61-U+FF9F) range. Compile with -DNOKANA to disable Katakana altogether.</p>
-
-<p>blend() is still good. Leaving it alone.</p>
-
-<p>Tossed license and automake cruft. Just <code class="language-plaintext highlighter-rouge">cc -O3 main.c -o matrix</code> now. Don’t
-need the ceremony.</p>
-
-<p>Runs at 2-3% CPU on OpenBSD (T490). No regressions. Fans are quiet.</p>
-
-<p>Commit: <a href="https://git.asciimx.com/matrix-digital-rain/commit/?id=f71b0de15a94d21ea60d281d73fa41311d8e5197" class="external" target="_blank" rel="noopener noreferrer">f71b0de</a>.</p>
-
-</div>
-          <p class="post-author right">by W. D. Sadeep Madurange</p>
-        </div>
-      </div>
-    </main>
-
-    <div class="footer">
-  <div class="container">
-    <div class="twelve columns right container-2">
-      <p id="footer-text">&copy; ASCIIMX - 2026</p>
-    </div>
-  </div>
-</div>
-
-
-  </body>
-</html>
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