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You are wrong there. "Protected Mode" is a shorthand for "Protected Virtual Address Mode", as defined by Intel in the Programmers Reference Manual. The term is
by blueflow 6y ago
You are wrong there. "Protected Mode" is a shorthand for "Protected Virtual Address Mode", as defined by Intel in the Programmers Reference Manual. The term is already x86-specific, and this is what i intended to express.
- gumby 6y agoThen I really don't understand the point you are trying to make. Memory protection itself certainly preceded the 286 by almost 20 years (I used to use a PDP-10 that ran an operating system using memory protection since the mid 60s). The article on which we are commenting talks about memory segmentation (which is what Protected Mode used to implement protection) thus my point that this was not an invention of Intel's (and in fact the 286 was not intel's first implementation of the idea, that was the 432). I don't intend to have an argument; it's just you made the assertion that Intel's failure in this regard was the Road Not Taken while I'm merely pointing out that there is plenty of experience (pro and con) of memory segmentation before and after the 286 and 386.
- blueflow 6y agoI never claimed Intel invented Memory Protection, i didn't even use the term "Memory Protection", and i didn't assert anyones failure on not taking any path. You are reading twice as much into my lines than what i said. I find this awful. At this point i regret writing my comment - not because its factually wrong or bad, but because im suddenly in the defensive because you are not putting much effort into understanding what i intended to express.