IBM OS/390 User Manual

 DEVADDR = SYSxxx

DDname (in DD statement)

 IOAREA1 = xxxxxxxx

BUFNO = 1

or

 IOAREA1 = xxxxxxxx

BUFNO = 2 or more

 IOAREA2 = xxxxxxxx
 ASOCFLE = xxxxxxxx

UNIT=AFF=ddname (in DD statement)

 BLKSIZE = nnn

BLKSIZE = nn

 CONTROL = YES

MACRF = (..C..) for input only

 CTLCHR = YES

RECFM = (...M)

ASA

(...A)

 SSELECT = n

DEVD = ..,..,STACK=1

 DEVICE = nnnn

UNIT = nnnn (in DD statement)

 EOFADDR = xxxxxxxx

EODAD = xxxxxxxx

 EAROPI = xxxxxxxx

SYNAD = xxxxxxxx

 FUNC = xxx

DEVD = (..,..,..,FUNC=xxxxxxxx)

 IOREG =(r)

MACRF -(...L..)

 MODE = E O

DEVD = (..,MODE=E O

C R

C R

 RECFORM = xxxxxx

RECFM = xxx

 RECSIZE = (r)

LRECL = nn

 SEPASMB = YES

User must code the DCB

 TYPEFLE = INPUT

MACRF = (G..)

OUTPUT

(P..)

CMBND

 WORKA = YES

MACRF = (...M..)

Figure 31. Comparison of the DTFCD and DCB Macros

OPEN

CARD

VSE

GET

CARD,WORK

.

CLOSE CARD

CARD

DTFCD DEVADDR=SYSIPT,IOAREA1=CARDIN1,

C

IOAREA2=CARDIN2,EOFADDR=END,

C

WORKA=YES

CDMOD WORKA=YES

OPEN

CARD

MVS

GET

CARD,WORK

.

CLOSE CARD

CARD

DCB

DSORG=PS,MACRF=(GM),

C

DDNAME=SYSIPT,EODAD=END,

C

RECFM=FB,LRECL=80

Figure 32. Card File Macros i n VSE and MVS

Chapter 13. A s s e m b l e r