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Virtual DOS machines can operate either exclusively through typical software emulation methods (e.g. dynamic recompilation) or can rely on the virtual 8086 mode of the Intel 80386 processor, which allows real mode 8086 software to run in a controlled environment by catching all operations which involve accessing protected hardware and forwarding them to the normal operating system (as exceptions).
The service for the Wii also includes games for platforms that were known only in select regions, such as the Commodore 64 (Europe and North America) and MSX (Japan), [28] as well as Virtual Console Arcade, which allows players to download video arcade games. Virtual Console titles have been downloaded over ten million times. [29]
DOSBox is a free and open-source emulator which runs software for MS-DOS compatible disk operating systems—primarily video games. [5] It was first released in 2002, when DOS technology was becoming obsolete. Its adoption for running DOS games is widespread, with it being used in commercial re-releases of those games as well.
MAME (formerly an acronym of Multiple Arcade Machine Emulator) is a free and open-source emulator designed to recreate the hardware of arcade games, video game consoles, old computers and other systems in software on modern personal computers and other platforms. [1]
Bochs (pronounced "box") is a portable IA-32 and x86-64 IBM PC compatible emulator and debugger mostly written in C++ and distributed as free software under the GNU Lesser General Public License. It supports emulation of the processor(s) (including protected mode ), memory, disks, display, Ethernet , BIOS and common hardware peripherals of PCs .
Dolphin was the first GameCube emulator that could successfully run commercial games. After troubled development in the first years, Dolphin became free and open-source software and subsequently gained support for Wii emulation. Soon after, the emulator was ported to Linux [28] and macOS. [29]
Virtual 8086 mode is not available in x86-64 long mode, although it is still present on x86-64 capable processors running in legacy mode. Intel VT-x brings back the ability to run virtual 8086 mode from x86-64 long mode, but it has to be done by transitioning the (physical) processor to VMX root mode and launching a logical (virtual) processor ...