Bochs v2.6.7 is released. Bochs is a highly portable open source IA-32 (x86) PC emulator written in C++, that runs on most popular platforms. It includes emulation of the Intel x86 CPU, common I/O devices, and a custom BIOS. Currently, Bochs can be compiled to emulate a 386, 486, Pentium/PentiumII/PentiumIII/Pentium4 or x86-64 CPU including optional MMX, SSEx and 3DNow! instructions.

Bochs is capable of running most Operating Systems inside the emulation including Linux, DOS, Windows® 95/98 and Windows® NT/2000/XP or Windows Vista. Bochs was written by Kevin Lawton and is currently maintained by this project.

Bochs can be compiled and used in a variety of modes, some which are still in development. The 'typical' use of bochs is to provide complete x86 PC emulation, including the x86 processor, hardware devices, and memory. This allows you to run OS's and software within the emulator on your workstation, much like you have a machine inside of a machine. For instance, let's say your workstation is a Unix/X11 workstation, but you want to run Win'95 applications. Bochs will allow you to run Win 95 and associated software on your Unix/X11 workstation, displaying a window on your workstation, simulating a monitor on a PC.

Bochs v2.6.7 Changelog:

- CPU / CPUDB - Implemented AVX-512BW/AVX-512DQ/AVX-512VL extensions emulation. - implemented AVX512-IFMA532 instructions emulation. - implemented AVX512-VBMI instructions emulation. - Bugfixes for CPU emulation correctness (critical fixes for AVX-512, CMPXCHG16B and VMX) - Fixed Bochs segmentation fault crash with Handlers Chaining Speedups enabled when compiling with gcc, especially with low optimization levels. - Reverted removal of reporting Architectural Perfmon support in pre-defined CPUID modules. Windows 8 and Windows 10 require Performance Monitoring to be reported to boot. To workaround possible Windows 7 64-bit installation issues: use bx_generic CPUID module, which doesn't report Performance Monitoring in CPUID. - GUI and display libraries - The VGA update timer and the status LED timer now always use the realtime mode independent from the 'clock' option setting. - Added native SDL2 GUI support to Bochs. To enable configure with --with-sdl2. - Added new user shortcut "scrlck" (SDL/SDL2 using "Scroll Lock" for fullscreen toggle). - Write enhanced gui debugger settings to file on exit and restore on initialization. - I/O Devices - USB - xHCI model now emulates a NEC/Renesas uPD720202 device (patch by Ben Lunt). - Added USB port specific option 'size' for VVFAT disks (range 128M ... 128G). If the size is not specified or invalid, it defaults to 504M. - Hard drive / HD image - Fixed crash when using a "fixed" type VPC image. - ROM BIOS - Fixed int74_function() for 4-byte (wheel mouse) packets. - LGPL'd VGABIOS updated from CVS (fixed building VBE modes list) - Misc - Visual Studio workspace files updated to VS2013Ex format. - bximage_old/bxcommit: removed old obsolete image manipulation tools. - Documentation fixes and updates.

Download: Bochs v2.6.7
Source: Here