jump_to is an iBoot function used by diags, tsys, and other boot commands for using addresses for loading kernelcaches or images locally stored.
Usage
When using iBoot commands, they use the function with the prepared arguments.
Example
This is from the bootx command decompilation.
jump_to(3, address, gBootArgs);
Field Information
3 — unknown
address — the address used to jump to the image
gBootArgs — the boot arguments to be passed to the kernel.