configure scriptYesBochs uses GNU autoconf to configure Makefiles and headers.
Autoconf helps Bochs to compile on a wide variety of platforms.
386,486,Pentium EmulationYesBochs can be configured to emulate one of several families of Intel hardware. Some Pentium features are incomplete, such as SMM (System Management Mode).P6 and later CPU EmulationYesBochs can be configured to emulate any P6 family processor including optional MMX and SSEx instructions.
x86-64 Extensions EmulationYesBochs can be configured to emulate x86-64 with many recent Intel and AMD extensions.Command Line DebuggerYesPowerful command line debugger (optional) that lets you stop
execution and examine registers and memory, set breakpoints, etc.
GUI DebuggerYesChourdakis Michael and Bruce Ewing contributed very powerful GUI
frontend for Bochs internal debugger. GUI debugger frontend is supported for
Win32 and GTK2/GTK3 hosts.
Floating PointYesUses software floating point engine based on
SoftFloat floating point emulation library.
Enhanced BIOSYesImplements ElTorito, EDD v3.0, basic APM feature, PCIBIOS features
and the PCI interrupt routing table. The latest version of the Bochs BIOS
has a 32-bit init for ACPI, SMM and SMP. Bochs also known to work with recent
SeaBIOS images.
VGAYesVGA color graphics emulation in a window.
VBE (VESA) SupportYesCurrently resolutions up to 2560x1600x32bpp are supported.
You must enable VBE with the VGA extension option and use the LGPL'd VGABIOS.
For more information see
Section 9.18.
Cirrus Logic video cardYesCirrus Logic CL-GD5430 ISA or CL-GD5446 PCI video card support.
For more information see
Section 9.19.3D video cardYesSome of the 3dfx Voodoo graphics adapter models are supported now.
The code is still experimental, but at least the Voodoo1 and the Voodoo
Banshee PCI are known to work. For more information see
Section 9.20.Plug&play monitorYesVESA DDC is now supported by all VGA compatible display adapters.
The LGPL'd VGABIOS has been updated use this feature for the Bochs VBE,
Voodoo Banshee and Cirrus versions. The interface reports a plug&play
monitor called 'Bochs Screen'.
Floppy diskYesSupports floppy disk images on all platforms: 2.88M 3.5', 1.44M 3.5', 1.2M 5.25',
720K 3.5' and 360K 5.25'. On Unix and Windows NT/2000/XP, Bochs can access the
physical floppy drive. It is also possible to use a local directory as VFAT media
(1.44M only).
Multiple ATA channelsYesEmulates up to 4 ATA channels. Up to 8 ATA/ATAPI emulated devices can be attached,
two per ATA channel.
So you can have eight hard disks or seven hard disks and a CD-ROM or four hard
disks and four CD-ROMs, or one hard disk and seven CD-ROMs, etc...
Hard diskYesEmulates ATA-6/IDE hard drives via image files. Physical
hard disk access is supported on some architecture, but NOT recommended, primarily for safety reasons.
With LBA48 support, hard disks up to 255TB are supported, on any platform that support large files access.
It is also possible to use a local directory as VFAT drive.
CD-ROMYesEmulates ATAPI-4/IDE CD-ROM. The CD-ROMs can read from an ISO disk image
on any platform. On Windows (NT/2000/XP/Vista), Linux, SunOS, FreeBSD,
NetBSD, OpenBSD, Amiga/MorphOS and MacOSX, Bochs can read from the
physical CD-ROM drive. The Bochs BIOS supports booting from the first CD-ROM drive.
KeyboardYesEmulates a PS/2 keyboard with North American key mappings. Optional
keyboard layout remapping files are provided to support localized keyboard
in X11 (12 layouts, e.g. French, German, Italian, Russian, Spanish, U.K.)
and SDL/SDL2 (German).
MouseYesEmulates a serial, PS/2, bus or USB mouse with 3 buttons + optional mouse
wheel support. There is also a USB tablet emulation available.
Sound cardYesEmulates a Sound Blaster 16 card (ISA, no plug&play) or an
ES1370 PCI card. The SB16 emulation provides wave input / output, the OPL3
chip, the external MIDI port and volume control for wave and FM. The ES1370
provides wave input / output, the MIDI UART port and volume control for
wave output. On Windows, Linux, FreeBSD, MacOS 9, MacOSX and all platforms
supported by SDL, the output can be sent to the host computer's sound
system. For the SB16, see the
developer documentation
for details.
Network cardYesEmulates an NE2000 compatible network card (ISA / PCI) or an Intel(R)
82540EM Gigabit Ethernet adapter (PCI). On Windows NT/2000, Linux, FreeBSD,
and NetBSD, Bochs will forward packets to and from the
operating system so that the guest OS can talk on the physical network.
Unfortunately, on some platforms the guest OS can talk to any machine on
the network BUT NOT the host machine. On Windows and on systems that
allow the TAP or TUN/TAP interface, there is no such limitation. Often
the host machine may be configured so the guest OS has access to the
internet. On MacOSX, you may download the TUN driver from:
http://chrisp.de/en/projects/tunnel.html
Parallel PortYesParallel port emulation was added by Volker Ruppert for Bochs 1.3.
Data that is sent to the parallel port by the guest OS can be saved into a
file or sent directly into the parallel port device (Unix only).
Serial PortYesThe serial port (16550A UART emulation) is usable, on GNU/Linux,
NetBSD, OpenBSD, FreeBSD and MacOSX as host and guest. On other OSes the
emulation is present, but the connection to hard- or software of the host is
not implemented yet. Up to 4 ports are available.
GameportYesEmulates a standard PC gameport. The connection to a real joystick is
currently supported on Linux and win32 only.
PCIYesEmulates most of the i430FX, i440FX or i440BX PCI chipset.
The Host-to-PCI bridge, the PCI-to-ISA bridge and the PCI IDE controller
(PIIX3/PIIX4) are available. For PCI cards there are 5 PCI slots supported.
ACPI and HPET features are also available. The i440BX chipset has basic
support for AGP.
USBYesFour types of host controllers (UHCI, OHCI, EHCI and xHCI) and the
devices 'mouse', 'tablet', 'keypad', 'keyboard', 'disk', 'cdrom', 'floppy',
'hub' and 'printer' are available. Plugging in and removing devices at runtime
is possible. Access to real hardware is not implemented yet.
PluginsYesCompiling devices, gui and drivers for network, sound and disk image
formats as plugins is supported on Linux, MacOS X, Solaris, Cygwin, MinGW/MSYS,
MSVC nmake and the VS2019 IDE (workspace provided).
PICYesMaster and slave programmable interrupt controller.
CMOS functionsYesReal time clock (RTC) and CMOS RAM are availableDynamic Translation/VirtualizationNoBecause Bochs is designed to be portable, it does not attempt
to do any dynamic code translation or virtualization. See
Section 1.1 for details.
Simulate a MultiprocessorYesBochs can be configured to simulate up to 254 processor threads. This
feature is still experimental, but it can boot several Linux or Windows guests
with SMP support. Please note that this does NOT mean that Bochs can run
faster on a physical SMP machine.
Take advantage of your SMP boxMinimalAt present, Bochs only uses threads in some guis, in the lowlevel
sound output code and in the Voodoo graphics adapter code. The simulation
core itself uses only one thread, so it will not run any faster on
multiprocessor hardware.
Copy and PasteYesDepending on the host platform, the text-mode screen text can be
exported to the clipboard. Text in the clipboard can also be pasted, through
Bochs, to the guest OS, as simulated keystrokes.