https://gunkies.org/index.php?action=history&feed=atom&title=Talk%3APDP-9Talk:PDP-9 - Revision history2026-04-08T16:00:58ZRevision history for this page on the wikiMediaWiki 1.30.1https://gunkies.org/w/index.php?title=Talk:PDP-9&diff=30605&oldid=prevJnc: /* Front panel */ Thanks!2023-07-23T17:34:05Z<p><span dir="auto"><span class="autocomment">Front panel: </span> Thanks!</span></p>
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<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 17:34, 23 July 2023</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;"></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="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 CONTINUE, STOP, SING INST, and SING STEP switches just pokes the RUN flip-flop.  But START, EXAMINE/DEPOSIT (NEXT), and READ IN jumps to microcode. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 19:07, 23 July 2023 (CEST)</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>The CONTINUE, STOP, SING INST, and SING STEP switches just pokes the RUN flip-flop.  But START, EXAMINE/DEPOSIT (NEXT), and READ IN jumps to microcode. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 19:07, 23 July 2023 (CEST)</div></td></tr>
<tr><td colspan="2"> </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 style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </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 style="font-weight: bold; text-decoration: none;">: Thanks! I had previously noticed that a lot of the PDP-11 front panels were run by microcode, but wasn't up for working out the details of the PDP-9 front panel. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 19:33, 23 July 2023 (CEST)</ins></div></td></tr>
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</table>Jnchttps://gunkies.org/w/index.php?title=Talk:PDP-9&diff=30603&oldid=prevLarsbrinkhoff: Just like the rest of the PDP-9, it's a mix of microcode and random logic.2023-07-23T17:07:21Z<p>Just like the rest of the PDP-9, it's a mix of microcode and random logic.</p>
<p><b>New page</b></p><div>==Front panel==<br />
<br />
The CONTINUE, STOP, SING INST, and SING STEP switches just pokes the RUN flip-flop. But START, EXAMINE/DEPOSIT (NEXT), and READ IN jumps to microcode. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 19:07, 23 July 2023 (CEST)</div>Larsbrinkhoff