ZOZ instruction format - page 4 ZOZ instructions can copy either a serial number to a serial number, usually written "A => B", or an absolute number to a serial number, usually written "nnn => B". The ZOZ instruction header word identifies the difference. With an (absolute-number) as source, like "347 => B", there is no source object and the ZOZ merely routes the instruction to the destination object B. When executing the instruction "A => B", we have a two-part operation. The ZOZ must (1) get a single datum from A and then (2) transport it to B, across the ZOZ data stream. In this case, the ZOZ first transports the instruction to the location of A. There it gets one datum from A. IT THEN CHANGES THE INSTRUCTION TO A NEW INSTRUCTION, replacing the serial number "A" with the absolute number "nnn" just obtained. That is: A => B becomes: nnn => B where nnn is the actual number just obtained from A. This new instruction is then routed across the ZOZ data stream to object B, thus completing the cycle. And fulfilling the edict that only ZOZ instructions travel on the ZOZ data stream.