IBM System/360 System Programmer's Guide

3
4
5
SCAN
HIT
XOUT
PARMOVE
MODMOVE
MYSAVE
MODNAME
XBCB
WAI'l'R
LA
LR
CLI
BE
LA
BCT
LA
SR
BCTH
LA
BCTH
EX
STH
LTR
BZ
BCTR
EX
L
L
L
XCTI,
MVC
MVC
DS
DS
DC
DC
END
1,ECB=XECB
3,0(3)
6,3
2(6),C','
HIT
6,1(6)
5,SCAN
5,1(5)
6,3
5,0
7,3(3,6)
6,0
6, MODIv'JOVE
5,0(3)
5,5
XOUT
5,0
5,PARMOVE
13,MYSAVE+4
14,12(13)
RELEASE SCHEDULER
SCAN FOR COMMA IN PARM FIELD
BRANCH IF FOUND
POIN'! TO NEXT CHARACTER
GR6 NOW CONTAINS NO. OF BYTES SCANNED
SUBTRACT 1 FROM COUNT FOR COMMA
GR7 NOW POINTS AT REMAINING PARAMETERS
SETUP GR6 FOR USE IN EX INST.
REMAINING COUNT TO PARM COUNT FIELD
CHECK COUNT FOR ZERO
IF ZERO, SKIP PARMOVE
SETUP GR5 FOR USE IN EX INST.
1,24(13)
(2,12),EPLOC=MODNAME
2(1,3),0(7)
MODNAME(1),2(3)
18F
OD
CL8' •
X'40000000'
1 The dummy WAITR macro-instruction must be coded as shown here. The
event control block must be specified as shown in statement 5, i.e.,
the complete bit is ON.
2 The subject instruction of this EX instruction places the name of the
program to be invoked in the MODNAME field -- statement 4.
3 The subject instruction of this EX instruction effectively deletes
the invoked program name from the PARM= area by moving the remaining
parameters in the area to the high order end of the area.
4 This field must contain blanks.
5 Coding the event control block as shown here sets the "complete bit"
ON. The wait routine will then allow execution of the WAITR routine
and the invoked program.
To the basic implementation shown in this example, you may wish to
add diagnostic code to inforrr the operator that the PARM= field has been
omitted from the EXEC statement. A count value of zero in the PARM=
area count field indicates that no information has been placed in the
PARM= area.
JOB CONTROL LANGUAGE STATEMENTS
You use the EXEC statement to initiate execution of the dummy WAITR
routine; to specify the name of the program to be invoked; and to
specify any parameters to be passed to the invoked program. A JOB
statement and any DD statements defining data sets used by the invoked
program must also be present in the input stream. A sample EXEC
statement follows. The dummy WAlTR routine has been cataloged as
DUMWAlT.
Constructing a Dummy WAITR Routine 123

IBM System/360 Specifications

General

Brand	IBM
Model	System/360
Category	Desktop
Language	English