Mcpx Boot Rom Image Xemu 'link' Guide
When you view mcpx_boot_rom.bin in a hex editor, you see assembly instructions for an ARM7TDMI core. The code does the following in under 100 cycles:
Warning: Using the MCPX ROM from a Debug Kit or a later revision (1.6) may cause Xemu to hang during the "Xbox Flubber" animation. Mcpx Boot Rom Image Xemu

