Steffi<p>Finally!<br>After ~12 hours more testing and debugging, I got CP/M 3 fully booted and working.<br>It took me quite a while to determine the proper wait states and timings for accessing the bank registers.<br>Now it boots up without any issue and I couldn't find any errors so far.</p><p><a href="https://social.anoxinon.de/tags/CPM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CPM</span></a> <a href="https://social.anoxinon.de/tags/CPM3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CPM3</span></a> <a href="https://social.anoxinon.de/tags/eZ80" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>eZ80</span></a></p>