>Well, in fact you wouldn't write that A(...) or V(...) would you, rather > EXTRN TESTSTUA > LARL R15,TESTSTUA > LLILF R15,TESTSTUA
For LARL yes (and that is exactly how you use this function now) since the operand is something for which it is expected to take the address (and would normally have to be resolved by base/displacement). For LLILF I would have said no since the LLILF operand is an "immediate". Peter Relson z/OS Core Technology Design