http://www.forensicswiki.org/w/index.php?title=Endianness&feed=atom&action=historyEndianness - Revision history2013-06-20T08:32:24ZRevision history for this page on the wikiMediaWiki 1.21.1http://www.forensicswiki.org/w/index.php?title=Endianness&diff=8048&oldid=prevJoachim Metz at 10:24, 31 January 20092009-01-31T10:24:20Z<p></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 10:24, 31 January 2009</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When examining numbers in hexadecimal form on a little-endian system, the byte order must be reversed before converting to decimal.  Note that the individual characters within the byte are not reversed because the whole byte represents one number.  For example, the hexadecimal number 39 05 must be reversed to 05 39 before being converted to the decimal 1337.</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>When examining numbers in hexadecimal form on a little-endian system, the byte order must be reversed before converting to decimal.  Note that the individual characters within the byte are not reversed because the whole byte represents one number.  For example, the hexadecimal number 39 05 must be reversed to 05 39 before being converted to the decimal 1337.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; 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><del class="diffchange diffchange-inline">x86 </del>processors usually represent numbers in little endian form. <del class="diffchange diffchange-inline"> PowerPC </del>processor architectures tend to be big<del class="diffchange diffchange-inline">-</del>endian.</div></td><td class='diff-marker'>+</td><td style="color:black; 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 class="diffchange diffchange-inline">Intel based </ins>processors <ins class="diffchange diffchange-inline">like the x86 </ins>usually represent numbers in little endian form. <ins class="diffchange diffchange-inline">Motorola based </ins>processor architectures <ins class="diffchange diffchange-inline">like the PowerPC </ins>tend to be big endian<ins class="diffchange diffchange-inline">.</ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== External Links ==  </div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== External Links ==  </div></td></tr>
</table>Joachim Metzhttp://www.forensicswiki.org/w/index.php?title=Endianness&diff=8047&oldid=prevKevin: Created the article. Populated with basic information.2008-03-19T18:50:05Z<p>Created the article. Populated with basic information.</p>
<p><b>New page</b></p><div>Endianness refers to the way that a computer processor or file format stores numbers. <br />
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Big endian numbers are stored in such a way that the most significant digit appears first in the number as it is read from left to right. This is familiar to most people as it is the way that nubers are represented in most languages. For example, in the number 1337 the first digit is the most significant digit because it represents 1000 units. The last digit is the least significant because it only represents 7 units.<br />
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Little endian numbers are stored in such a way that the most significant digit appears last in the number as it is read from left to right. When the number 1337 is stored in a little endian system, the seven is the most significant digit and represents 7000 units. The one is now the least significant digit representing only one unit.<br />
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When examining numbers in hexadecimal form on a little-endian system, the byte order must be reversed before converting to decimal. Note that the individual characters within the byte are not reversed because the whole byte represents one number. For example, the hexadecimal number 39 05 must be reversed to 05 39 before being converted to the decimal 1337.<br />
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x86 processors usually represent numbers in little endian form. PowerPC processor architectures tend to be big-endian.<br />
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== External Links == <br />
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* [http://en.wikipedia.org/wiki/Endianness Wikipedia article on endianness]<br />
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[[Category:File Formats]]</div>Kevin