Currently, Bochs can be compiled to emulate a 386, 486, Pentium, Pentium Pro or AMD64 CPU, including optional MMX, SSE, SSE2 and 3DNow instructions.
It includes emulation of the Intel x86 CPU, common I/O devices, and a custom BIOS. Bochs is a highly portable open source IA-32 (x86) PC emulator written in C++, that runs on most popular platforms.
