Let’s Code MS DOS 0x11: The Mysterious VGA Mode X

Today we’ll tackle a more complicated topic. That’s also why the video is rather long with 40 Minutes. However I think this is necessary, given the importance of the topic. The VGA card is surprisingly feature rich. However a lot of these features are not accessible from the standard 256 color mode 13h. That’s why we take a look at Mode X today, which unlocks such features as page flipping, scrolling and giving access to the VGA’s full memory.