Latest release: Bochs 2.6.1
About seven months after release 2.6 we have a new intermediate (bugfix+) release.
Here is the summary of changes :
The binary packages for Linux and Windows are built with these featues :
- CPU / CPUDB
- Bochs is fully aligned with rev45 of the of Intel(R) Architecture Manual.
- Implemented Supervisor Mode Access Protection (SMAP) support
- Implemented VMX APIC Registers Virtualization and VMX Virtual Interrupt Delivery
- Implemented VMCS Shadowing and #VE exception secondary VMEXIT controls emulation
- Implemented RDRAND and RDSEED instructions
- CPUDB: Added AMD FX-4100 (Zambezi) configuration to CPUDB
- Bugfixes for CPU emulation correctness (critical fixes for SVM and AVX2 emulation)
- Bochs Debugger and Instrumentation
- Use Enhanced GUI Debugger instead of old-style wx debugger with wx gui.
The old-style wx debugger support was deprecated and removed from the source code.
- I/O Devices
- Implemented 3dfx Voodoo Graphics card emulation based on DOSBox patch, to enable
configure with --enable-voodoo option.
- Hard drive / HD image
- Added full save restore support for most of the disk image formats
- undoable / volatile mode: added support of other types of r/o base images
- DLL HD support rewritten and enabled for WIN32 host
- PCI chipset
- Implemented i430FX chipset emulation
- USB UHCI always enabled in the i440FX case
- Config interface
- Configure option --enable-misaligned-sse moved to runtime option in .bochsrc. The old
option is deprecated and should not be used anymore.
- moved 'user_shortcut' bochsrc option to the 'keyboard' option
- save log options per device to bochsrc
- win32: implemented scrollable dialog items for large parameter lists
- GUI and display libraries
- Graphics snapshot feature rewritten to support all kinds of graphics modes
- wx: starting a second simulation without closing Bochs now almost possible
- bxcommit: added support for converting flat to growing mode images
Details on what has changed since version 2.6
- x86-64 emulation with all optimizations enabled
- chipset: PCI (i430FX / i440FX), ACPI
- video: Bochs VBE, Cirrus SVGA and Voodoo1
- sound: SB16 (ISA) and ES1370 (PCI)
- network: NE2000 (ISA/PCI) and E1000 (PCI)
- USB: OHCI, UHCI, xHCI and 7 pluggable device types
- Display libraries:
- Linux: nogui, rfb, sdl, term, wx, x
- Windows: nogui, rfb, win32
Previous release: Bochs 2.6
About eight months after the bugfix release 2.5.1 we have a new stable release.
Here is the summary of changes :
- More than 10% CPU emulation speedup !
- Support for AMD's SVM hardware emulation (including extended XAPIC support).
- Implemented support for new x86 ISA extensions.
Bochs is fully aligned with rev043 of Intel(R) Architecture Manual.
- Improved emulation accuracy (critical fixes for APIC, VMX and AVX/XOP emulation).
- Bochs internal debugger: new command to show state of a device from the debugger.
- ROM BIOS: improved PCI boot ROM support (for VGA and other devices)
- Ported Intel(R) 82540EM Gigabit Ethernet adapter emulation from Qemu.
- Added PCI network boot ROM support to all network adapters.
- Added TFTP support to the 'slirp' networking module.
- Harddrive: added support for VirtualPC disk images, fixed sparse disk images.
- implemented PC speaker beep using the lowlevel sound interface.
- SDL audio output support.
- Added ability to set log action per device from .bochsrc.
- Moved disk imaging, networking, sound and USB devices to subdirectories
in the iodev folder.
Details on what has changed since version 2.5.1
Bochs Binary and Source Releases
The latest release of Bochs is available in these file formats :
You can download any release since March 2001 on the
- Win32 binary NSIS installer package (EXE)
- Win32 binary with x86-64 CPU + SMP support (ZIP) - Bochs installation is required
- Win64 binary - Bochs installation is required
- Linux binary RPM (32 / 64 bit)
- Platform independant source package (TAR.GZ)
- Win32 specific source package prepared for MSVC (ZIP)
- Linux source RPM
Bochs, like many other open source projects, uses SVN (Subversion) to keep
track of source code. Unlike the current release, the SVN version of the
sources contains everything the developers have written to this date, and it
can change daily (or even hourly). As a result, the SVN version of Bochs will
have more features and bug fixes than the release, but also it may be somewhat
less stable. You can decide if you prefer to go exploring and try out our
newest code, or stick with the better-tested release.
This snapshot is from Mon Apr 29 16:38:15 UTC 2013
The SVN snapshots are provided as a convenience only. Of course, you could
also get the same information using SVN itself. Some of the benefits of
using SVN directly are: you can get any release or version, view the log
messages that say what files were changed, and make patches very easily
with "svn diff -u".