Environment

The caller (issuer of the IEFSSREQ macro) must include the following mapping macros:

Data areas commonly referenced are mapped by the following mapping macros. IBM® recommends you include them in your program:

The caller must meet the following requirements:

Caller variable	Caller value
Minimum Authorization	Problem state, any PSW key.
Dispatchable unit mode	Task
AMODE	24-bit or 31-bit
Cross memory mode	PASN=HASN=SASN
ASC mode	Primary
Interrupt status	Enabled for I/O and external interrupts
Locks	No locks held
Control Parameters	The SSOB, SSIB, and IAZSSST control blocks can reside above or below 16 megabytes in virtual storage.
Recovery	The caller should provide an ESTAE-type recovery environment. See z/OS MVS Programming: Assembler Services Guide for more information about an ESTAE-type recovery environment.

Figure 1 shows the environment at the time of the call for SSI function code 80.

Figure 1. Environment at Time of Call for SSI Function Code 80