IBM System/360 20 User Manual

assembly, the user must ensure that this
restriction is observed. The RPG pro-
gram will free the upper 280 bytes for
the generated object program if column
35 of the control card contains a
1-punch.
• Tape error statistics cannot be
collected in IBM-supplied programs,
except in the TPS Sort/Merge program and
the TPS Utility programs TAPTAP, TAPPRT,
TAPCAR and CARTAP.
PREPARATION OF A TAPE-RESIDENT SYSTEM RUN
To initiate a run of the tape-resident sys-
tem, the following steps must be taken by
the operator (see also Figure 6):
1. Place into the hopper of the loading
unit (2501 if attached; otherwise, 2520
Card Read-Punch or primary feed of
2560) :
a)
the tape IPL deck
up to and includ-
ing the END card;
b}
the
ASSGN
card for
SYSRES;
c)
an ASSGN card
for SYSRDR (if
requi red)
d) the (corrected) REP cards (if the
standard assignments have not been
changed by means of the Load System
Tape program) ;
e)
the end-of-file card (/* in cols.
1- 2) •
2. ~ount the system tape on the drive
assigned to SYSRES; press the Load-
Rewind key and the Start key of the
drive.
3. Place into the hopper of the device
assigned to SYSRDR:
a) the JCB card for the first job to
be executed;
b)
a tATE card;
c) a CCNFG card (if the storage capa-
city is other than 8K and the spe-
cification in the Basic Monitor has
not been corrected by means of the
Load System Tape program);
d) ASSGN cards for any 7-track tape
drives or 9-track tape drives with
compatibility feature that are to
be assigned by the REP cards fol-
lowing the IPL deck;
e) any job control cards required for
the first job to be executed.
(These job control cards must be
terminated by an EXEC card) •
Job Control Statements
for Next Job
Note If SYSRDR refers to that card
reading device which
is the
loading unit, the cards read
on
SYSRDR follow those read on
the
loading unit in the hopper.
Optional ~~ .... (''iiPA~~----l
,c:'- ..::- -=- ~ -= -==- - ~-=il
~c;r~ Co;;;'~ - - - -, '1
( Statements (If any) II ~_J
II EXEC d
'
--':::-=---;=jl _9
( :Job-Depende;;~ - -'1,1
J.. £2n!!.o!2.t~~tL _ 1
1
'1
,tE= :-=-=--==-_-_-,,1 I I
( ASSGN Statements lll! I i.J
L... _____ --, IILJr
( II CONFG ••• I 1..- for inserting tape
· I I U characteristics
{II DATE '.. r1
1*
Optional ~ ______ ~
'\
,....-------:1
c-.-- ----:::::;').
('REPC:ds- - - -111
1
(/i~SSGNSYsRDR:.-. l Iltr
II ASSGN SYSRES,... 1-3
J
I I JOB .:. _ ...J
-
Loading Unit
SYSRDR
SYSRES
Figure 6. Arrangement of Input for a Tape-R€sident System Run
Initiation and Use of the Card-Resident and Tape-Resident Systems 17

IBM System/360 20 Specifications

General

Brand	IBM
Model	System/360 20
Category	Storage
Language	English