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Interesting, did the VMS team publish something about the emulation? That would be interesting for my OS course...
by johndoe0815 4y ago
Interesting, did the VMS team publish something about the emulation? That would be interesting for my OS course...
- fredoralive 4y agoThe source of the bit about VMS only using 2 rings on x86 from the Wikipedia article is https://www.youtube.com/watch?v=U8kcfvJ1Iec https://www.youtube.com/watch?v=U8kcfvJ1Iec , which I did skim to check that source for what the differences were (it seems to be around page protection between rings[1], circa 14 minutes in). I assume it gives more information, but I don't have time to watch more of it. [1] Before I checked I was under the misunderstanding that AMD64 had just got rid of the extra rings alongside stuff like BCD instructions, so was trying to find a source for that.