There are (2) Rexx execs located on file 220 of the CBTtape.org web
site (V492) (http://www.cbttape.org/
They are LISTSVCJ and LISTSVCT. These execs will list the SVC Update
Journal table and the all of the active SVCs respectively.
HTH
Tony
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf
Of Lizette Koehler
Sent: Friday, November 11, 2016 7:29 PM
To: [email protected]
Subject: Re: SVC display
From the manual: z/OS z/OS 2.1.0 z/OS MVS z/OS MVS Diagnosis:
Reference System Reference SVC summary SVC routines Naming
conventions for SVC routinee
Naming conventions for SVC routines
SVC routines are load modules which are named as follows:
The routines for SVC types 1, 2 and 6 are named IGCxxx, where xxx is the
SVC number (decimal).
The routines for SVC types 3 and 4 are named IGC00xxx, where xxx is the SVC
number.
If a type 4 SVC routine calls for multiple SVC loads, the naming convention
is to identify each load by increasing 00 by one. For example, IGC03xxx
indicates the third module loaded within a type 4 SVC routine.
For types 3 and 4 SVC routines, the internal format of the SVC number (xxx)
is zoned decimal with a four-bit sign code (1100) in the four high-order bits
of the low order byte. Any low-order digit in a type 3 or 4 SVC number that is
between 1 and 9 will be an EBCDIC character between A and I in the load module
name. For example, the load module name for SVC 51 (X'33') would be IGC0005A
because the low order byte is 1100 0001, or A in zoned decimal. A low-order
zero in the SVC number corresponds to a hexadecimal C0 in the load module name.
ESR type 3 routines have names in the format IGX00nnn, where nnn is the
decimal code placed in register 15 when SVC 109 is issued
From this you can see what the convention is for naming an SVC. Depending on
what SVC you are looking for (TYPE1/2/3/4/6 or a Router), you would look for
the name. If you have a tool like MXI, SHOWMVS, Omeagmon, Sysview, SAS, etc...
You can scan the system either live or after the fact.
If you try ISRDDN and use the LPA command then search for the module name you
can see if it is in a library.
you might try searching the internet and see if anyone created REXX code to go
through control blocks to display SVCs.
Lizette
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