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I
L
to
be
prepared by
the user
,,-
-
-
- -
-
-,"
~-------(
I
I
Job Control Program
I
I
Phose 00
:
J
,
S/M Phose
13
r:.. _
-=.
-=-
-= :::-_-;' "
(
User Routines for
I
Merging
I
I
S/M Phases
10-12
I)
-
--
--~
-------~I
( User Routines for
I
External Sorting
I ,
S/M Phose 9
~
~Ro:tin-;; ~
-=. -:.
-= -:. 1:
\
Internal Sorting
I
~-
Optional
I
I
S/M Phose
8
~
r -
- - - - - - ,
~---------(I
User Routines for
I
Job Control Program
Phose
03
Job Control Statements
~
Control Prog'om
c . .
00,01, 02
SYSRDR
a) In oa Card-Resident System Run
~'.d
if
Job
C~"ol
V
:-:!~;be
..
,,",mod
'I
I
--1-
-----.,.
",
/ ,
"
I
/
I
~-----------(
)
(
User Routines
. /
(
S/M Control Statements
L
, / Job Control Statements
SYSRDR
b) 'n a Tape-Resident System Run
0-
1--1
i.I"
"
I
I'
I
/
-.,j,/
.Figure 10. Arrangement of Input Decks for the Execution of the
Sort/~erge
Program
When alternate input or output devices
have not been specified, which is alwals
the case for input to merge runs, a pro-
grammed halt occurs after a volume has been
completely read or written.
The halt code
displayed on the CPU console identifies the
cause of the halt and the appropriate
restart procedure.
PROGRAMMED HALTS
A number of programmed halts may occur dur-
ing the loading and execution of the Sortl
Merge program.
The halt-code displays and
the associated restart procedures are
described in the section
Erog£~!!!.!!!.ed-Hali
12i:§.El~.l§_~nQ_.Rg§i~~£i_R£Q£gg
ur
e§~
One non-programmed halt may occur during
execution of the
Sort/~erge
program.
This
halt occurs when invalid packed-decimal or
zcned-decimal data is encountered.
The
system halts, and the opera tion code "FS"
is displayed in the U-[ fields on the CPU
console.
In this case, the job must be
discontinued.
To discontinue the jot,
•
prepare the I/O devices for the next
job,
•
change the contents of register
3
to
00C2, and
•
press the start key on the CPU console
to initiate the end-of-jot routine.
36
System/360
Model 20 TPS Operating Procedures
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