Virtual 8086 Mode - Usage

Usage

It is used to execute DOS programs in Windows/386, Windows 3.x, Windows 9x/Me, and OS/2 2.x and later through virtual DOS machines, in SCO UNIX through Merge, and in Linux through dosemu. NTVDM in x86 Windows NT based operating systems also use VM86 mode, but with very limited direct hardware access.

Protected mode DOS programs, either 16 or 32-bit, do not execute in virtual 8086 mode, but rather in user mode (as long as they are DPMI compatible), so the above emulators actually do more than just supporting the virtual 8086 mode.

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