Environment

The requirements for the caller are:

Requirement	Description
Minimum authorization:	Problem state. PSW key 8-15
Dispatchable unit mode:	Task
Cross memory mode:	PASN=HASN=SASN
AMODE:	31- or 64-bit If in AMODE 64, specify SYSSTATE AMODE64=YES before invoking this macro.
ASC mode:	Primary or access register (AR) If in Access Register ASC mode, specify SYSSTATE ASCENV=AR before invoking this macro.
Interrupt status:	Enabled for I/O and external interrupts
Locks:	No locks may be held.
Control parameters:	Control parameters must be in the primary address space. Control parameters must be below 2G.