ASMA057E

Undefined operation code - xxxxxxxx
Explanation
One of the following errors has occurred: 
The operation code of this statement is not a valid machine or
assembler instruction or macro name.
In an OPSYN statement, this operand symbol is undefined or illegal
or, if no operand is present, the name field symbol is undefined.
On z/VSE the High Level Assembler only reads library macros that
have a member type of A, or if the // OPTION SUBLIB=DF
statement is used, a member type of D. Edited (E-Deck)
macros, that have a member type of E or F can
only be read by a LIBRARY exit.

System action
The statement is ignored. OPSYN does not search the macro library
for an undefined operand.

Programmer response
Correct the statement. In the case of an undefined macro instruction,
the wrong data set might have been specified for the macro library.
In the case of OPSYN, a previous OPSYN or macro definition might have
failed to define the operation code.

If the operation code shown is a z/VSE edited macro (E-Deck), High
Level Assembler can only find and read it with a LIBRARY exit. You
might want to use the z/VSE supplied LIBRARY exit described in VSE/ESA Guide to System Functions.

Severity
8