Major call 3

Prior to Major Call 3, DFSORT sets the following fields in the EFS interface parameter list:

Action code=8
Major Call 3 is in effect.
Informational bit flag 4=0 and informational bit flag 5=1
A sort application is in effect.
Informational bit flag 7=0
Fixed-length records are being processed.
Record lengths list values=80
The LRECL of the input and output data sets is 80. Because the SORTOUT LRECL was not specified, DFSORT defaulted to the SORTIN LRECL for the SORTOUT LRECL.
Extract buffer offsets list=0
No EFS control fields were specified on the SORT control statement.

DFSORT calls EFS program EFSPGM at Major Call 3, and EFSPGM sets the following fields in the EFS interface parameter list:

EFS01 address=0
Because the SORT control statement has no EFS control fields, the EFS01 user exit routine is not used.

Because no INCLUDE control statement was supplied (with EFS fields), the EFS02 user exit routine is not used.
Message list=0
EFSPGM has no messages for DFSORT to print to the message data set. General register 15 is set to zero.