I am new to MVS Assembly.
I have been told to understand ASMA90. I need to make change on user request.
Here is our existing code:
Where should I start?
//*
//C EXEC PGM=ASMA90,PARM='OBJECT,NODECK'
//SYSLIB DD DSN=IMSB.MACLIB,DISP=SHR
//SYSLIN DD UNIT=SYSDA,DISP=(,PASS),
// SPACE=(80,(100,100),RLSE),
// DCB=(BLKSIZE=80,RECFM=F,LRECL=80)
//SYSPRINT DD SYSOUT=&SOUT,DCB=BLKSIZE=1089,
// SPACE=(121,(300,300),RLSE,,ROUND)
//SYSUT1 DD UNIT=SYSDA,DISP=(,DELETE),
// SPACE=(CYL,(10,5))
//SYSIN DD DSN=&LIB(&MBR),DISP=SHR
//*
//L EXEC PGM=IEWL,PARM='XREF,LIST',COND=(0,LT,C),REGION=4096K
//SYSLIN DD DSN=*.C.SYSLIN,DISP=(OLD,DELETE)
//SYSPRINT DD SYSOUT=&SOUT,DCB=BLKSIZE=1089,
// SPACE=(121,(90,90),RLSE)
//SYSLMOD DD DSN=IMSB.STAGE.PSBLIB(&MBR),DISP=SHR
//SYSUT1 DD UNIT=(SYSDA,SEP=(SYSLMOD,SYSLIN)),
// SPACE=(1024,(100,10),RLSE),DISP=(,DELETE)
//C EXEC PGM=ASMA90,PARM='OBJECT,NODECK'
//SYSLIB DD DSN=IMSB.MACLIB,DISP=SHR
//SYSLIN DD UNIT=SYSDA,DISP=(,PASS),
// SPACE=(80,(100,100),RLSE),
// DCB=(BLKSIZE=80,RECFM=F,LRECL=80)
//SYSPRINT DD SYSOUT=&SOUT,DCB=BLKSIZE=1089,
// SPACE=(121,(300,300),RLSE,,ROUND)
//SYSUT1 DD UNIT=SYSDA,DISP=(,DELETE),
// SPACE=(CYL,(10,5))
//SYSIN DD DSN=&LIB(&MBR),DISP=SHR
//*
//L EXEC PGM=IEWL,PARM='XREF,LIST',COND=(0,LT,C),REGION=4096K
//SYSLIN DD DSN=*.C.SYSLIN,DISP=(OLD,DELETE)
//SYSPRINT DD SYSOUT=&SOUT,DCB=BLKSIZE=1089,
// SPACE=(121,(90,90),RLSE)
//SYSLMOD DD DSN=IMSB.STAGE.PSBLIB(&MBR),DISP=SHR
//SYSUT1 DD UNIT=(SYSDA,SEP=(SYSLMOD,SYSLIN)),
// SPACE=(1024,(100,10),RLSE),DISP=(,DELETE)
