Virtual 8086 mode

In the 80386 microprocessor and later, Virtual 8086 mode, also called virtual real mode or VM86, allows the execution of real mode applications that are incapable of running under the control of a protected mode operating system.VM86 mode uses a segmentation scheme identical to real mode, for compatibility reasons, but used the 20-bit (actually 21-bit) address resulting from it as a linear address, so it is subject to paging.
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