IBM OS/390 User Manual

┌───────┬───────────┬────────────────────────────────┐
│ VSE │ CANCEL

│

ALL

│

├───────┼───────────┼────────────────────────────────┤
│ MVS │ ABEND │

comple─ion code

│

│

│

│

(1-12)

,DUMP ,STEP

│

├───────┴───────────┴────────────────────────────────┤
│ No─e: Use .STEP wi─h sub─asking.

│

└────────────────────────────────────────────────────┘

The VSE CANCEL macro causes the termination of the job. All succeeding job
steps within this job are automatically bypassed by job control.

The MVS ABEND macro provides this same facility. Refer to the section “DUMP
Macro” on page 280.

┌───────┬─────────┬─────────────────────────────┐
│ VSE

│

EOJ

│ RC=

│

├───────┼─────────┼─────────────────────────────┤
│ MVS

│

RETURN │ (reg1 ,reg2) ,T ,RC=number

│

│

│

│

,RC=(15)

│

└───────┴─────────┴─────────────────────────────┘

The VSE EOJ macro allows you to terminate a problem program step. Any
routine of this problem program can issue it.

The MVS RETURN macro returns control to the calling program and signals
normal termination of the returning program. To terminate a job step, you must
issue this macro by a routine at the same level as the one originally called to
begin execution of the job step. See 13.2.1.2, “Termination” on page 269 and
note Register 13 load requirements.

The MVS ENQ and DEQ macros have functions similar to the VSE LOCK and
UNLOCK macros.

Example:

(VSE)

LOCK

DTL1

Get the lock

. . . .
UNLOCK DTL1

Free the lock

. . . .

DTL1

DTL

NAME=L20,CONTROL=E,LOCKOPT=1,SCOPE=EXT

(MVS)

ENQ

MF=(E,DTL1)

Get the lock

. . . .
DEQ

MF=(E,DTL1)

Free the lock

. . . .

DTL1

ENQ

(QNAME1,RNAME1,E,,SYSTEM),MF=L

QNAME1

DC

CL8

′

VSELOCK

′

RNAME1

DC

CL12

′

L20

′

Chapter 13. A s s e m b l e r