//JOBNAME JOB (ACCT),NAME,CLASS=A,MSGCLASS=A,MSGLEVEL=(1,1) //********************************************************************* //ASMCG PROC AOPT=,APARM=,LOPT=, // MAC1='SYS1.MACLIB', // MAC2='SYS1.MACLIB', // MAC3='SYS1.MODGEN' //ASM EXEC PGM=ASMA90, // PARM=('OBJ,NODECK,LC(32767),XREF(SHORT),TERM,RLD,ASA,&AOPT', // 'US(MAP,WARN(11)),SYSPARM(&APARM)') //SYSPRINT DD SYSOUT=* //SYSTERM DD SYSOUT=* //SYSLIB DD DISP=SHR,DSN=&MAC1 // DD DISP=SHR,DSN=&MAC2 // DD DISP=SHR,DSN=&MAC3 //SYSUT1 DD UNIT=SYSALLDA,SPACE=(TRK,(80,20)) //SYSLIN DD DISP=(,PASS),UNIT=SYSALLDA,SPACE=(TRK,(30,15),RLSE), // DCB=(RECFM=FB,BLKSIZE=0,LRECL=80) //GO EXEC PGM=LOADER,COND=(5,LT,ASM), // PARM=('LIST,LET,MAP,XREF,&LOPT') //SYSLOUT DD DUMMY //SYSLIN DD DSN=*.ASM.SYSLIN,DISP=(OLD,DELETE) // PEND //********************************************************************* //STEP1 EXEC ASMCG //ASM.SYSIN DD * &MODNAME SETC 'MYASMPGM' *=====================================================================* * MVS STANDARD HOUSE KEEPING PROCEDURE * *=====================================================================* * *----------------------------------* * * ENTRY PROCESSING * * *----------------------------------* &MODNAME CSECT , DEFINE CONTROL SECTION &MODNAME AMODE 31 DEFINE DEFAULT AMODE=31 &MODNAME RMODE 24 DEFINE DEFAULT RMODE=24 USING *,12 DEFINE BASE REGISTER SAVE (14,12),,* SAVE CALLER REGISTERS LA 12,0(,15) GR12 --> OUR 1ST BASE ADDRESS LR 15,13 SAVE CALLER SAVEAREA CNOP 0,4 INSURE FULL WORD BOUNDARY BAS 13,*+4+72 AROUND OUR SAVEAREA DC 18F'-1' OUR GPR SAVEAREA ST 15,4(,13) SAVE CALLER SAVEAREA POINTER ST 13,8(,15) SET BACK CHAIN FOR LINK TRACE B MAINPROC DO MAINLINE PROCESSING * *----------------------------------* * * EXIT PROCESSING * * *----------------------------------* EXITPROC DS 0H L 13,4(,13) RESTORE CALLER SAVEAREA ST 15,16(,13) PASS RETURN CODE TO CALLER RETURN (14,12),T RESTORE CALLER REGISTERS + AND RETURN TO CALLER EJECT , *********************************************************************** * MAIN LINE PROCESSING. * * ===================================================== * * GR1 -- EXEC PARAMETER PLIST * * GR12 - BASE REGISTER * * GR13 - OUR REGISTER SAVEAREA * *---------------------------------------------------------------------* * SAMPLE CODE OF 'MVS ADVANCED SKILL Vol-1' CHAPTER 5.3 * * ===================================================== * * CALCULATE USED CPU TIME. * *********************************************************************** MAINPROC DS 0H STIMER TASK,TIMREXIT, SET INTERVAL TIMER + BINTVL=INTRVAL SPACE , L R2,=F'50000000' LOOP 50,000,000 TIMES CPULOOP DS 0H L R0,DOUBLE LR R1,R0 ST R1,DOUBLE BCT R2,CPULOOP SPACE , TTIMER CANCEL,TU CANCEL TIMER AND LOAD REMAINING+ TIMER INTO GR0 SRDL R0,32 MOVE GR0 TO GR1 AND CLEAR GR0 M R0,=F'2604166' CONEVRT TO MICRO SECOND UNIT D R0,=A(100000*10000) CONVERT TO 1/100 SECOND UNIT L R0,INTRVAL SR R0,R1 CVD R0,DOUBLE CONVERT TO DECIMAL UNPK WTOLIST+18(4),DOUBLE CONVERT TO ZONE OI WTOLIST+21,X'F0' MAKE IT TO REDABLE ICM R0,B'0011',WTOLIST+20 INSERT DECIMAL POINT MARK STCM R0,B'0011',WTOLIST+21 I MVI WTOLIST+20,C'.' V WTO MF=(E,WTOLIST) INFORM REMAINING TIMER B DONE WTOLIST WTO 'USED CPU TIME=@@.@@ SECOND.',MF=L DONE DS 0H SPACE , * *----------------------------------* * * END OF PROCESSING * * *----------------------------------* SLR 15,15 LOAD RETURN CODE = 0 B EXITPROC DO EXIT PROCESSING SPACE , * *----------------------------------* * * ASYNCHRONOUS EXIT ROUTINE * * *----------------------------------* TIMREXIT DS 0H USING *,RF SET TEMP BASE STM RE,RC,12(RD) SAVE CALLER GPRS L RC,AOURBASE ESTABLISH OUR BASE REGISTER DROP RF FORGET TEMP BASE WTO 'CPU TIMER EXPIRED...' INFORM TIMER EXPIRED LM RE,RC,12(RD) SAVE CALLER GPRS BR RE AOURBASE DC A(&MODNAME) OUR BASE ADDRESS EJECT , *********************************************************************** * DATA AREA * *********************************************************************** DS 0D *---------------------------------------------------------------------* DOUBLE DC D'0' DOUBLE WORD WORKAREA INTRVAL DC F'1000' 10.00 SECOND(EXPECTED CPUTIME) *---------------------------------------------------------------------* LTORG , LITERAL POOL AT HERE DROP , FORGET ALL BASE REGISTERS EJECT , *********************************************************************** * DATA AREA (OUTSIDE OUR BASE) * *********************************************************************** *---------------------------------------------------------------------* * LOCAL WORKAREA * *---------------------------------------------------------------------* *---------------------------------------------------------------------* * DSECTS * *---------------------------------------------------------------------* *---------------------------------------------------------------------* * S/370, ESA/390 REGISTER EQUATES * *---------------------------------------------------------------------* YREGS , OS: REGISTER EQUATES RA EQU 10 ADD EQUATION FOR GR10 RB EQU 11 ADD EQUATION FOR GR11 RC EQU 12 ADD EQUATION FOR GR12 RD EQU 13 ADD EQUATION FOR GR13 RE EQU 14 ADD EQUATION FOR GR14 RF EQU 15 ADD EQUATION FOR GR15 END // //