PERCC: Enable/disable program event recording (PER)

Use this system macro to enable or disable the z/TPF system for program event recording (PER).

Required authorizations
Key0	Restricted	System	Common storage
	X

Format

Notes:

label

is a symbolic name that can be assigned to the macro statement.

parm

specifies one of the following with this positional parameter:

ENABLE: specifies that PERCC sets the PER control bit on in selected program masks and new PSWs.
DISABLE: specifies that the PER control bit is set off in the program masks and PSWs.

See Return conditions for more information about program masks selection.

The ECB-controlled program must be authorized to issue restricted use macros.

Control is returned to the next sequential instruction (NSI).
The following masks and PSWs are enabled or disabled for PER:
- SVC New PSW
- I/O New PSW
- Selected mask bytes in CAPT at label CPMSMKS
- The mask byte at CPM1PSW, used during ECB initialization
The contents of R0 through R7 are preserved.

For information about macro register conventions, see Register conventions.

None.

None.