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Seriously dude Get out of the 90's. That's when they introduced "Enforcer" .. which if you have a CPU with an mmu eg.. 020+68851 or a non-EC anything later enables mmu protection.
Yes, you can run without memory protection. No I don't think it's wise and don't. Yes, I do think that AmigaOS, VMS and OS/400 are the pinnacle of OS dev