IBM System/360 20 User Manual

Note: If data cards are to be read by a
user routine from the device assignect to
SYSRDR, they must be placed behind that
routine in the hopper. The user is
responsible for recognizing the end of his
data.
PREPARATION OF THE SYSTEM
The following steps must be taken by the
operator to prepare the system for the
execution of the TPS Sort/Merge program.
1. If the system run has not yet been
initiated, follow the procedure
described in the section Th~~ard=
.Eg§i~gnt_~y§!g!!l..
2. Place into the hopper of SYSRDR:
a) phases 00, 01 and 02 of the Job Con-
trol p rog ]Lam;
b) the cards containing the job control
statements;
c) phase 03 of the Job Control program;
d) the deck containing phases 0 and 1
of the Sort/Merge program;
e) the cards containing the program
control statements for the Sort/
Merge program;
f) the deck containing phasEs 2-7 of
the Sort/~e rge progr am, follo·wed by
the user routines for the Assignment
part, if any. (If data cards are to
be read by these routines from the
same device, they must follow the
routines in the hopper);
g) the deck containing phases 8 and 9
of the Sort/Merge program, followed
by the user routines for the Intern-
al Sorting part, if any. (If data
cards are to be read by these rou-
tines from the same device, they
must follow the routines in the
ho pper) ;
h)
the deck containing phases 10 and 11
of the Sort/Merge program, followed
by the user routines for the Extern-
al Sorting part, if any. (If data
cards are to be read by these rou-
tines from the same device, they
must follow the routines in the
hopper) ;
i) the deck containing phases 12 and 13
of the Sort/Merge program, followed
by the user routines for the Merging
part, if any. (If data cards are to
be read by these routines from the
same device, they must follow the
routines in the hopper).
3. Place into the appropriate hopper any
data cards to be read by USEr routines
from a card reading device other than
SYSRDR.
4. Press the start key of each card read-
ing device used.
5. Press th~ Reset key and the Start kEY
of the printer.
6. Mount the required tapes on their
drives and press the Load-Bewind key
and the Start key of each drive used
(except when tapes are positioned and
ready from a previous job).
7. Press the start key on the CPU console.
1. If the system run has not yet been
initiated, follow the procedure
described in the section l~g_Tapg=
.E~§id~!l!~.i§te.!!! •
2. Place into the hopper of the reading
device assigned to SYSEtB:
a) the cards containing the job control
statemen ts,
b) the cards containing the control
statements for the sort/Merge
program,
c) the assembled user routines (if
any) •
3. Place any data cards to be read by a
user routine into the hopper of the
appropriate device.
4. Press the start key of each card read-
ing device used.
5. Press the Reset key and the start key
of the printer.
6. Mount the required tapes on their
drives. Press the Load-Bewind key and
the start key of each drive used.
7. Press the Start key on the CPU console.
Figure 10 shows the arrangement of input
decks for a sort/merge job under control of
the card-resident system and the tape-
resident system.
SPECIAL CCNSIDERATICNS FeR MULTI-VOLUME
INPUT
AND OUTPUT FILES
When alternate input or output devites have
been specified and a volume on one drive
has been completely read or written, the
program checks whether the other drive is
ready. If it is ready, processing con-
tinues without operator invention. If it
is not ready, a programmed halt occurs. In
this case, the halt code displayed on the
CPU console identifies the cause of the
halt and the appropriate restart procedure.
Use of Language Translators and ether IBM-Supplied Processing Programs 35

IBM System/360 20 Specifications

General

Brand	IBM
Model	System/360 20
Category	Storage
Language	English