A SmileBASIC Tutorial but all of the function definitions are stupid and wrong
PRINT [GRPFILE$] - Prints out the specified GRP file using the 3DS Printer, which is only compatible with SmileBASIC and a few Virtual Console Game Boy & Game Boy Color titles.
RESTORE [FILE$] - Restores the corrupted file specified
READ [BOOK$] - Reads any book to you.
WAIT UNTIL [VALUE] - Waits until the value != 0 just like REPEAT UNTIL [VALUE].
RUN - Makes any character in a game run regardless of game, useful for testing.
GOTO [@LOCATION] - Teleports your 3DS to the location specified, if the location is fictional, your 3DS will become a canon part of that location.