Restrictions

1. This macro may not be used prior to the completion of WLM address space initialization
2. All parameter areas must reside in current primary.
3. Caller is responsible for error recovery
4. Only limited checking is done against the input monitoring token.
5. If the key specified on IWM4MCRE was a user key (8-F), then the primary addressability must exist to the performance block IWM4MCRE obtained. This condition is satisfied by ensuring that current primary matches primary at the time that IWM4MCRE was invoked. If this service is invoked in a subspace, the condition may be satisfied by ensuring that the performance block is shared with the base space.
6. FUNCTION(CONTINUE) may not be used when there is an outstanding continuation established by use of Transfer Continue
7. The caller must serialize to prevent any delay monitoring services from being invoked concurrently for the input monitoring environment.
8. This macro may only be used on z/OS V2R1 or higher.

Register

Contents

0

Reserved

1

Reserved

13

The address of a 216-byte standard save area

14

Reserved

15

Reserved

Register

Contents

0

Reserved

1

Reserved

14

Reserved

15

Reserved

When control returns to the caller, the GPRs contain:

Register

Contents

0

Reason code if GR15 return code is non-zero

1

Used as a work register by the macro

14

Used as a work register by the macro

15

Return code

When control returns to the caller, the ARs contain:

Register

Contents

0

Used as a work register by the macro

1

Used as a work register by the macro

14

Used as a work register by the macro

15

Used as a work register by the macro

Some callers depend on register contents remaining the same before and after using a service. If the system changes the contents of registers on which the caller depends, the caller must save them before calling the service, and restore them after the system returns control.