WRITE Macro

Notes:
1. TYPE = DA, DAF, DI, DIF, DIX, DK, DKF, o r DKX.
2. ′S′- system supplies the operand if you specify ′S′.
3. Ifthe key is not written or used as a search argument, zero is specified
instead of keyaddress.
CNTRL Macro
There is no equivalent in MVS BDAM to the VSE CNTRL macro. The MVS CNTRL
macro does not support DASD devices.

WAITF, OPEN and CLOSE Macros

Notes:
1. DISP is assumed when no positioning option is specified in the CLOSE
macro. The volume is then positioned according to the position implied by
the DISP parameter of the DD statement.
2. Anynumber of dcbaddresses may be specified in the OPEN and CLOSE
macros.
VSE WRITE KEY
filename , ID
(1) RZERO
AFTER
AFTER,EOF
MVS WRITE decbname,type, dcbaddress , area address,
(2-12) (2-12)
′S′
length key address
(2-12) , (2-12) , block address
′S′′S′(2-12)
0
VSE WAITF filename
(r1)
MVS WAIT
CHECK
number of events, ECB = address
ECBLIST = address
dcbaddress ,DSORG = IS
(1-12) ALL
VSE OPEN(R) filename ,...
(r1)
MVS OPEN dcbaddress INPUT
(2-12) , OUTPUT
UPDAT
VSE CLOSE(R) filename
(r1l)
MVS CLOSE dcbaddress , FREE ,...
(2-12) DISP
314 VSE to OS/390 Migration Workbook