Starting, interrupting and terminating

Macro	Brief description
BKPT	Transfers control to the system. The user can then enter commands at the terminal
ENTER	Initiates a batch job (same function as ENTER-JOB command)
EXIT	Terminates an STXIT process
LGOFF	Terminates the job (same function as EXIT-JOB command)
PASS	Causes the calling program to wait one second
RETRN	Returns control to the program from which it was called (e.g. with the BR instruction). In addition it can be used to restore the contents of any registers the current program has saved using the SAVE macro
SAVE	Saves register contents by buffering them; the call is useful at the beginning of a subroutine. The register contents can be restored with the RETRN macro
SETIC	Starts or resets the interval timer (used in conjunction with the STXIT macro)
STXIT	Specifies user-defined interrupt handling routines with which the system continues processing when a program interrupt occurs
TERM	Terminates the program and the job step, and initiates a memory dump
TINF	Changes the run priority of the task, or the job type (batch, interactive or transaction), or the parameters of the task' s deactivation prohibition
VPASS	Pends the user task for a specified time