Bochs is an open-source IA-32 (x86) PC emulator. 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, DOS, Windows 95/98 and Windows NT/2000. But because Bochs emulates every x86 instruction and all the devices in a PC system, it is used extensively for debugging new operating systems. The Bochs debugger lets you simulate quickly or slowly, pausing whenever you want to look at the contents of memory or the CPU registers.
- Bochs supports emulation of the processor, memory, disks, display, Ethernet, BIOS and common hardware peripherals of PCs.
- 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 OS inside the emulation including Linux, DOS, Windows® 95/98 and Windows® NT/2000/XP or Windows Vista/7.