Bochs 2.4.1 - x86 PC emulator. (Free)

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, Pentium Pro or AMD64 CPU, including optional MMX, SSE, SSE2 and 3DNow instructions. Bochs is capable of running most Operating Systems inside the emulation including Linux, Windows 95, DOS, and Windows NT 4. 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 OSes 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 Win95 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.

WHAT'S NEW

Version 2.4.1:

• Fixed bunch of CPUID issues
  • Bochs is now able to install and boot 64-bit Windows images! (special thanks to Mark Ebersole for his patch)
  • Several bugfixes in CPU emulation (mostly for x87 instructions)
  • Fixed two critical deadlock bugs in the Win32 gui (patches from @SF tracker)
  Fixes related to the 'show ips' feature
  • removed conflicting win32-specific alarm() functions ('win32' and 'sdl' gui)
  • feature now works in wx on win32
• Added support for gdb stub on big endian machine (patch by Godmar Back)
• Rewritten obsolete hash_map code in dbg symbols module (patch from @SF)
• BIOS: implemented missing INT 15h/89h (patch by Sebastian Herbszt)

REQUIREMENTS

Mac OS X 10.2 or later.

DEVELOPER

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