ABBA is a CAOS command thought to be introduced for Docking Station.
Syntax: ABBA (integer) Returns the absolute base for the current agent/part. Returns -1 if an invalid part. The absolute base is the value passed into NEW: SIMP and so on, it is different from the BASE.
It is used in the commedia to feed the part of a NEW: SIMP line that creates the new copied agent, where ABBA is used to represent what position the copied agent should start using images from. (See NEW: SIMP for further details on this).