This routine is used to launch other software. It is used by:

- Exomizer (see https://github.com/bitshifters/exomizer/blob/master/exomizer/exomizer115.txt)
- FileBrowser64 (FB64) - found by debugging

and probably others. It is also mentionned in the cartridge writing tutorial here:

- https://codebase64.org/doku.php?id=base:assembling_your_own_cart_rom_image