IBM PC compatible computers begin executing code pointed to by the address in FFFF:0000.
I couldn't remember this the other day when talking to Kp about the first message for this forum.
FFFF:0000 EA 5B E0 00 0F
And, also, the address jumped to was supposed to be BIOS dependant...
Which is why I started execution at FFFF:0000, which contains the BIOS dependent jump ;)