Mcpx Boot Rom Image ((install))
For enthusiasts using emulators like xemu or XQEMU , the MCPX Boot ROM image is an absolute requirement. Because it is copyrighted Microsoft code, it is not bundled with emulators and must be dumped from a physical console.
The MCPX is the custom processor and input/output chip designed by Microsoft and Silicon Integrated Systems (SiS) for the original Xbox console. Inside this chip lies a secret, highly protected piece of code: the MCPX Boot ROM. This 512-byte hidden program is the very first code the Xbox executes when powered on. Mcpx Boot Rom Image