Notice: Trying to access array offset on value of type bool in /mnt/cpcwiki-httpdocs/includes/libs/IPSet.php on line 243
Notice: Trying to access array offset on value of type bool in /mnt/cpcwiki-httpdocs/includes/libs/IPSet.php on line 246
Notice: Trying to access array offset on value of type bool in /mnt/cpcwiki-httpdocs/includes/libs/IPSet.php on line 243
Notice: Trying to access array offset on value of type bool in /mnt/cpcwiki-httpdocs/includes/libs/IPSet.php on line 246 https://oldwiki.cpcwiki.eu/index.php?action=history&feed=atom&title=File%3AIM2_Plus_Ack_Bug.pngFile:IM2 Plus Ack Bug.png - Revision history2026-08-29T15:03:25ZRevision history for this page on the wikiMediaWiki 1.25.1https://oldwiki.cpcwiki.eu/index.php?title=File:IM2_Plus_Ack_Bug.png&diff=98357&oldid=prevGerald: Red marker is at start of IRQ acknowledge cycle which is immediately seen by the ASIC (INTn goes up) : vector is 0x06
Purple marker is at the effective cycle where the Z80 sample the vector, and where the ASIC sees a second acknowledge. Vector is now 0...2017-07-30T08:55:17Z<p>Red marker is at start of IRQ acknowledge cycle which is immediately seen by the ASIC (INTn goes up) : vector is 0x06 Purple marker is at the effective cycle where the Z80 sample the vector, and where the ASIC sees a second acknowledge. Vector is now 0...</p>
<p><b>New page</b></p><div>Red marker is at start of IRQ acknowledge cycle which is immediately seen by the ASIC (INTn goes up) : vector is 0x06<br />
Purple marker is at the effective cycle where the Z80 sample the vector, and where the ASIC sees a second acknowledge. Vector is now 0x04.</div>Gerald