https://www.cpcwiki.eu/index.php?action=history&feed=atom&title=Run_Length_Encoding 2026-08-30T16:49:17Z Revision history for this page on the wiki MediaWiki 1.43.0 https://www.cpcwiki.eu/index.php?title=Run_Length_Encoding&diff=33016&oldid=prev 2009-10-08T21:47:08Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:47, 8 October 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Run Length Encoding is a very simple form of file <del style="font-weight: bold; text-decoration: none;">compression</del>. It compresses long sequences of the same byte to an indicator code, byte value, and count. For example, 48 spaces (character code &amp;20) might be encoded as &amp;E9 &amp;30 &amp;20, assuming the indicator code was &amp;E9.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Run Length Encoding is a very simple form of file <ins style="font-weight: bold; text-decoration: none;">[[Data Compression|Compression]]</ins>. It compresses long sequences of the same byte to an indicator code, byte value, and count. For example, 48 spaces (character code &amp;20) might be encoded as &amp;E9 &amp;30 &amp;20, assuming the indicator code was &amp;E9.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>CPC programs to use RLE techniques included:</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>CPC programs to use RLE techniques included:</div></td></tr> <!-- diff cache key wikidb:diff:1.41:old-33015:rev-33016:php=table --> </table>

MacDeath https://www.cpcwiki.eu/index.php?title=Run_Length_Encoding&diff=33015&oldid=prev 2009-10-08T21:46:20Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:46, 8 October 2009</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l11">Line 11:</td> <td colspan="2" class="diff-lineno">Line 11:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Later compression programs (such as [[Cheese]] and [[Columbia]]) used the more advanced [[LZW]] algorithm.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Later compression programs (such as [[Cheese]] and [[Columbia]]) used the more advanced [[LZW]] algorithm.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:DATA Storage]]</ins></div></td></tr> <!-- diff cache key wikidb:diff:1.41:old-13549:rev-33015:php=table --> </table>

MacDeath https://www.cpcwiki.eu/index.php?title=Run_Length_Encoding&diff=13549&oldid=prev 2007-01-04T23:56:19Z

<p></p> <p><b>New page</b></p><div>Run Length Encoding is a very simple form of file compression. It compresses long sequences of the same byte to an indicator code, byte value, and count. For example, 48 spaces (character code &amp;20) might be encoded as &amp;E9 &amp;30 &amp;20, assuming the indicator code was &amp;E9.<br /> <br /> CPC programs to use RLE techniques included:<br /> <br /> * [[SQ23]]<br /> * [[Crunch]] by [[Crown]]<br /> * [[Newsweep]] ([[CP/M]])<br /> * [[PowerPage]] (for saved pages)<br /> * [[Stop Press]] (for clip art)<br /> * [[MicroDesign]] (for all saved graphics)<br /> <br /> Later compression programs (such as [[Cheese]] and [[Columbia]]) used the more advanced [[LZW]] algorithm.</div>

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