Editing Virtual 8086 mode (section)

==Usage==
It is used to execute certain [[DOS]] programs in 
[[FlexOS 386]] (since 1987), [[Concurrent DOS 386]] (since 1987), [[Windows/386 2.10]] (since 1987), [[DESQview#DESQview and QEMM|DESQview 386]] (since 1988), [[Windows 3.0|Windows 3.x]] (since 1990), [[Multiuser DOS]] (since 1991), [[Windows for Workgroups|Windows for Workgroups 3.1x]] (since 1992), [[OS/2]] 2.x (since 1992), [[4690 Operating System|4690 OS]] (since 1993), [[Multiuser DOS#REAL/32|REAL/32]] (since 1995) running in [[Windows 3.0|386 Enhanced Mode]] as well as in [[Windows 95]], [[Windows 98|98]], [[Windows 98 SE|98 SE]] and [[Windows ME|ME]] through [[virtual DOS machine]]s, in [[SCO UNIX]] through [[Merge (software)|Merge]], and in [[Linux]] through [[DOSEMU]]. (Other [[DOS]] programs which use protected mode execute using user mode under the emulator.) [[Virtual DOS machine#NTVDM|NTVDM]] in [[x86]] Windows NT-based operating systems also use VM86 mode,<ref>{{cite web|url=http://www.microsoft.com/resources/documentation/windowsnt/4/workstation/reskit/en-us/archi.mspx?pf=true#E5PAE |title=Windows NT 4.0 Workstation Architecture|website=[[Microsoft]]}}</ref> but with very limited direct hardware access. Some boot loaders (e.g. [[GRUB]]) use the [[protected mode]], and execute the [[BIOS interrupt calls]] in Virtual 8086 mode.<ref>{{Cite journal|last=Mike Wang|title=Grub2 Booting Process|date=21 June 2016 |url=https://www.slideshare.net/MikeWang45/grub2-booting-process}}</ref><ref>{{Cite web|title=Virtual 8086 Mode - OSDev Wiki|url=https://wiki.osdev.org/Virtual_8086_Mode|access-date=2020-12-10|website=wiki.osdev.org}}</ref>