https://wikiti.brandonw.net/index.php?action=history&feed=atom&title=83Plus%3AOS%3ACertificate%2FHeaders%3AFields%3A807 2026-04-08T21:04:12Z Revision history for this page on the wiki MediaWiki 1.23.5 https://wikiti.brandonw.net/index.php?title=83Plus:OS:Certificate/Headers:Fields:807&diff=10250&oldid=prev 2014-05-09T22:24:21Z

<p>rewrote description for accuracy</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <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 22:24, 9 May 2014</td> </tr><tr><td colspan="2" class="diff-lineno">Line 9:</td> <td colspan="2" class="diff-lineno">Line 9:</td></tr> <tr><td class='diff-marker'>&#160;</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>'''Usual Size''' Fh - 00000000h</div></td><td class='diff-marker'>&#160;</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>'''Usual Size''' Fh - 00000000h</div></td></tr> <tr><td class='diff-marker'>&#160;</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'>&#160;</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>This <del class="diffchange diffchange-inline">is always the last </del>field <del class="diffchange diffchange-inline">in </del>an <del class="diffchange diffchange-inline">OS or </del>app header <del class="diffchange diffchange-inline">before </del>the <del class="diffchange diffchange-inline">actual OS or </del>app is <del class="diffchange diffchange-inline">sent. Its size is alway Fh </del>- <del class="diffchange diffchange-inline">00000000h and it </del>is <del class="diffchange diffchange-inline">usually padded so that </del>OS<del class="diffchange diffchange-inline">/app </del>starts <del class="diffchange diffchange-inline">in </del>the <del class="diffchange diffchange-inline">right place</del>.</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>This field <ins class="diffchange diffchange-inline">signals the end of </ins>an app <ins class="diffchange diffchange-inline">or OS </ins>header<ins class="diffchange diffchange-inline">. It's usually given a 4-byte length field---suggesting that the rest of </ins>the app <ins class="diffchange diffchange-inline">or OS </ins>is <ins class="diffchange diffchange-inline">part of this field</ins>-<ins class="diffchange diffchange-inline">--but the length </ins>is <ins class="diffchange diffchange-inline">always specified as zero, and you can just write this as 80 70 instead of 80 7F 00 00 00 00.</ins></div></td></tr> <tr><td colspan="2">&#160;</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>&#160;</div></td></tr> <tr><td colspan="2">&#160;</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">Usually, padding follows this. However, the </ins>OS starts <ins class="diffchange diffchange-inline">app execution on </ins>the <ins class="diffchange diffchange-inline">byte following this field (so long as the header is less than 128 bytes total), so there's no need for padding. Just put your first instruction after 80 70</ins>.</div></td></tr> </table>

Dr. D'nar https://wikiti.brandonw.net/index.php?title=83Plus:OS:Certificate/Headers:Fields:807&diff=9439&oldid=prev 2011-06-25T03:54:28Z

<p>Created page with &#039;<a href="/index.php?title=Category:83Plus:OS:Certificate/Headers:Fields_By_Number" title="Category:83Plus:OS:Certificate/Headers:Fields By Number">807 - Last Field</a> <a href="/index.php?title=Category:83Plus:OS:Certificate/Headers:Fields:800" title="Category:83Plus:OS:Certificate/Headers:Fields:800">807 - Last Field</a> == Synopsis == &#039;&#039;&#039;Field Number…&#039;</p> <p><b>New page</b></p><div>[[Category:83Plus:OS:Certificate/Headers:Fields_By_Number|807 - Last Field]] [[Category:83Plus:OS:Certificate/Headers:Fields:800|807 - Last Field]]<br /> == Synopsis ==<br /> '''Field Number:''' 807h<br /> <br /> '''Purpose''' Last Field<br /> <br /> '''Parent''' [[:Category:83Plus:OS:Certificate/Headers:Fields:800|800 - Flash Variable]]<br /> <br /> '''Usual Size''' Fh - 00000000h<br /> <br /> This is always the last field in an OS or app header before the actual OS or app is sent. Its size is alway Fh - 00000000h and it is usually padded so that OS/app starts in the right place.</div>

Thepenguin77