http://wiki.intellivision.us/index.php?action=history&feed=atom&title=SP0256_Page_Prefix 2026-06-24T22:29:41Z Revision history for this page on the wiki MediaWiki 1.30.0 http://wiki.intellivision.us/index.php?title=SP0256_Page_Prefix&diff=14895&oldid=prev 2010-12-04T09:12:15Z

<p>Protected &quot;<a href="/index.php/SP0256_Page_Prefix" title="SP0256 Page Prefix">SP0256 Page Prefix</a>&quot; ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite))</p> <table class="diff diff-contentalign-left" data-mw="interface"> <tr style="vertical-align: top;" lang="en"> <td colspan="1" style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: white; color:black; text-align: center;">Revision as of 09:12, 4 December 2010</td> </tr><tr><td colspan="2" style="text-align: center;" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Mr z http://wiki.intellivision.us/index.php?title=SP0256_Page_Prefix&diff=1482&oldid=prev 2005-01-18T22:40:53Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr style="vertical-align: top;" lang="en"> <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 22:40, 18 January 2005</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3" >Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</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>The Page Prefix register provides the upper 4 bits of the address for [[SP0256 JSR|JSR]] instructions, as well as branches initiated by an external [[SP0256 Address Load]] command.</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>The Page Prefix register provides the upper 4 bits of the address for [[SP0256 JSR|JSR]] instructions, as well as branches initiated by an external [[SP0256 Address Load]] command.</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>(Unsure:&#160; Do JSRs push 12-bit or 16-bit addresses...?&#160; I think they push 16-bit, so <del class="diffchange diffchange-inline">&quot;</del>[[SP0256 RTS|RTS]] always returns to the right place.&#160; Need to check.)</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>(Unsure:&#160; Do JSRs push 12-bit or 16-bit addresses...?&#160; I think they push 16-bit, so [[SP0256 RTS|RTS]] always returns to the right place.&#160; Need to check.)</div></td></tr> </table>

Mr z http://wiki.intellivision.us/index.php?title=SP0256_Page_Prefix&diff=416&oldid=prev 2005-01-18T22:40:41Z

<p></p> <p><b>New page</b></p><div>[[Category:Intellivoice]]<br /> <br /> The Page Prefix register provides the upper 4 bits of the address for [[SP0256 JSR|JSR]] instructions, as well as branches initiated by an external [[SP0256 Address Load]] command.<br /> <br /> (Unsure: Do JSRs push 12-bit or 16-bit addresses...? I think they push 16-bit, so &quot;[[SP0256 RTS|RTS]] always returns to the right place. Need to check.)</div>

Mr z