Noone can tell just by looking at the listing ? :p
Basically it says this program reconfigures the Falcon just before sector booting:
It installs itself at $300000 after having reconfigured the computer in order it only sees one or 2 megs ram.
Then you have to reset and execute a sector boot on a disk: this one will call the aformentioned program at $300000 which will execute the sector boot in order to launch the game, after having reconfigured the Falcon.
sorry for the poor translation, the original is quite bad written to begin with :p