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by mjg59 332 days ago
A20 bugs were still with us until at least 2009, when I tripped over one: https://mjg59.livejournal.com/118098.html . I love the visualisations in this post, it makes it much clearer what's actually going on.
1 comments
diffuse_l 332 days ago
Indeed, more than you ever wanted to know about the A20 line: https://aeb.win.tue.nl/linux/kbd/A20.html (from your article)

This is one hell of a rabbit hole...

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