IBM System/360 20 User Manual

10. set the Mode switch on the CPU console
to PROCESS.
11. Press the Load key on the CPU console.
A list of job control statements is
obtained on the printer.
The sample program creates 100 data
records and writes them onto the tape. It
then reads the records from the tape and
lists them on the printer.
When the execution is completed, the
system halts and the code OB20 is
displayed.
If the next job is to be executed, the
initialized tape, which is mounted on the
drive assigned to SYS001, must te unloaded
and kept for later use.
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The following steps must be taken to
assemble the sample source program with
output on tape and to execute the program
from this tape (two stacked jobs).
1. The system tape (containing the TPS
Assembler program and the macro library
with Basic Monitor and IOCS macro
definitions) remains on the tape drive
assigned to SYSRES from the previous
run.
2. Mount an appropriate output tape on the
drive assigned to SYSOPT (see ASSGN
card in group 093). Press the Load-
Rewind key and the start key of the
drive.
3. Mount work tapes on the drives assigned
to SYSOOO and SYSOO 1 (see ASSGN cards
in group 093.) Press the Load-Rewind
keys and the Start keys of the d~ives.
4. Place the tape IPL deck (containing
ASSGN cards for SISRlS and SISRDR from
the previous runs) into the hopper of
the loading unit (2501 in the exa mple) •
5. Place card group 093 (job control cards
for assembly) into the hopper of SYSRDR
(25 0 1i n the example).
6. Place card group 091 (sample source
program) into the hopper of SYSIPT
(2501 in the example).
7. Place card group 094 (job centrol cards
for execution) into the hopper of
SYSRDR.
8. Press the Start key{s) of the card
reading device(~ used.
9. Press the Reset key and the start key
of the printer.
10. Set the Register-Data/Address switches
on the CPU console to an even main
storage addreSS between hexadecimal
009C and the end-of-storage address
minus hexadecimal 0052.
11. Set the ~ode switch on the CPU console
to PROCESS.
12. Press the Load key on the CPU console.
The Assembler listing (Figure 25) is
ebtained on the printer. The object pro-
gram is written onto the tape mounted on
SYSOP'I.
When the assembly has been completed,
the Job Control program is called. The Job
Centrol program reads the job control
statements for execution and loads the
object program into storage from the tape.
Execution begins with label checking on
SIS001, and since the Assembler work tape
is still mounted on this drive, a system
halt occurs and the code OEOA is displayed.
'10 resume operation, take the following
steps:
1. Remove the tape reel from SYS001.
2. Mount the initialized tape with volume
serial number 000001 on the tape drive,
and press the Load-Rewind key and the
start key of the drive.
3. Enter FF into location OOCE.
4. Press the start key on the CPU console.
Label checking is now performed on the
tape, and the sample program is executed.
The list of records is produced on the
printer. The system halts and code 01DO is
displayed.
If the next job is to be executed imme-
diately, the initialized tape (on the drive
assigned to SYS001) must be unloaded and
kept for later use.
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1ib~ary
The following steps must be taken to
assemble the sample source program with
output on tape, include the object program
in the program library, load the program
from the library and execute it.
1. The system tape (containing the TPS
Assembler program, the CHAINT program,
and the macro definitions) remains on
sample Programs 77

IBM System/360 20 Specifications

General

Brand	IBM
Model	System/360 20
Category	Storage
Language	English