Final answer:
The STMEA seems to be a specialized command, and without more context, its equivalent using IA, IB, DA, and DB cannot be determined. Those suffixes typically stand for operations such as Increment Address or Byte and Decrement Address or Byte, possibly suggesting memory manipulation commands.
Step-by-step explanation:
The STMEA operation seems to be a proprietary or specialized command which is not widely recognized in standard computing terminologies. To accurately translate the STMEA operation into equivalent commands using the suffixes IA (Increment Address), IB (Increment Byte), DA (Decrement Address), and DB (Decrement Byte), one would need the specific context or operational framework within which the STMEA command is being used. For example, if STMEA represents a sequence of operations that increments an address and a byte simultaneously, then the equivalent translation could be a combination of IA and IB commands.However, without further details on the STMEA operation, we cannot make a definitive translation.