As I recall, there were no jumps or branches that there would not have been anyway in a single-architecture binary. Every time there was a jump or branch, it s

As I recall, there were no jumps or branches that there would not have been anyway in a single-architecture binary. Every time there was a jump or branch, it simply had to go further, since it would be skipping over unreachable binary code for the other architectures. The real complexity was all resolved up front, in that blob of magic at the entry point.