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X86-64: Difference between revisions
That was misleading
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(That was misleading) |
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x86-64 processors can operate in a legacy mode, they still start in real mode and protected mode is still available (along with the associated v8086 mode). This means an x86 operating system, even DOS, will still run just fine. The only difference is that physical addresses can be up to 52 bits (or as many bits as implemented by the CPU) when PAE is used.
However, there is nothing like [[Virtual 8086 Mode]]
==Entering Long Mode directly==
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