GENCB BLK=ACB, An access method control block. x
DDNAME=DATA
LTR 15,15
BNZ ERROR
LR 2,1 Address of the control block.
OPEN (BLOCK,,(2)) A label is used for the access method x
control block generated by ACB; x
register notation is used for the x
one generated by GENCB. The two commas x
indicate the omission of options.
BLOCK ACB , Another access method control block.