<p>i've completed reverse engineering the 2nd chip of the IBM MCGA graphics chipset. this is the "Video Formatter Gate Array" and i already discovered hidden functionality!</p><p><a href="https://github.com/schlae/IBM_MCGA" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="">github.com/schlae/IBM_MCGA</span><span class="invisible"></span></a></p>