input Processing Output
Parameter
List ULJ lJ
1 Determine type of request.
2 STAT ALL with no other
operands produces a file of
current status for all problems.
3 STAT ALL with other operands
that request specific categories,
produces a display of the
requested status.
4 STAT with no operands causes
a prompt of the user for
probiem number and a display of the specified status.
5 STAT nnnnn is a request for a
display of the current status of
the specified problem. I Return
to CMS r Notes Module Label Ref Notes
1 If an operand is not recognized, issue DMMSTA START 4 STAT: message: The user is prompted for the number of OPERAND NOT RECOGNIZED, CK2CONT the problem whose status he wishes. 12 STATALL ASSUMED STAT ALL: 1 1 STALLDC 1 Set switch (LAL LSW) and erase any old copy of STATALL LOCAL file. Heading line is written followed by all the symptom summary control
records and the file is closed. .If he enters 0000, STAT ALL is 1 assumed (see Step 2). • If he enters a number other than 0000, that number is checked for
validity and the symptom summary
file is searched for the requested
problem. STATSRCH 3 STAT ALL oper: If any additional operands are not
recognized, issue message: OPERAND oper NOT RECOGNIZED 5 STAT nnnnn:
The problem number nnnnn is checked
for validity. • If the number is in the correct
format, the symptom summary file • If operands are valid, the entire is searched for the requested
symptom summary file is searched problem.
and each control record is matched
with the specified operands. • The status is displayed when found. • If a match is found, the control
record is presented to the user on the • If the problem is not found, issue
message:
terminal and the search continues. PROBLEM NOT FOUND IN SYMPTOM SUMMARY FILE Diagra. 2-4. STAT IPCS Co •• and 1 I Module Label Ref SPNUM 1 1 STATRDY Chapter 2. IPCS--The Interactive Proble. Central Syste. 27

Input Processing
From eMS Output I REG 1 Check user options, assign a
Parameter unique dump number, read first
List five records of dump, and write
the first records to the CMS file. [j
ump B List CMS File [J
ump EJ List . Dump File Notes Module 1 If there are no options specified, the DMMEDM
defaults are MAP, FORMAT and
HEX. If an invalid option is specified,
issue message: INVALID PARAMETER parm
PAGE REFERENCED NOT DMMINI AVAILABLE Read the next sequential number
from the summary record file, and
append it to the dump prefix 'PRB'.
The dump name will always be
PRBnnnnn, where 'nnnnn' is the
DMMEDM
unique dump number.
Read the records by branching and linking to the READCPR routine.
The spool records contain the following: Record Contents
1 Symbol Table
2 Dump Information record 3-4 Storage Protection Keys at
time of dump
5 First page of storage
dumped (0) Save the following from the informa· tion record (2): • First 256 bytes of storage • General and floating·point and
control registers • TOO clock and comparator • Address of the terminating
prefix storage area • Abend code
Create the item table from the bit
map in record 2.
Write the records to the CMS file that will contain the CP dump file (if
requested) by branching and linking
to the WTREC routine.
2 Determine if the user wants
this dump. If 'NO', erase spool file and
return. If 'YES', create CMS file containing dump and call the
data extraction routines: ToCMS • Determine proper dump file. • Initialize buffers. • Compress nucleus load map
(Diagram 2·6). label Ref Notes CHKOPT 2 To determine if the user wants this dump, issue the message: VM/370 SYSTEM ABEND xxxx
DATE (date) TIME (time)
ERRFND DO YOU WANT THIS DUMP? PRBDUMNO If the user responds 'NO', erase
the spool file and return to CMS. If the user responds 'YES', write a
record by branching and linking to the
WRT Routine, read another record by
RDUMP
branching and linking to the READCD
routine, and so on until the read returns
a non·zero condition code:
Code Meaning
1 End-of-file, 'DUMP PRBnnnnn
CREATED' message is issued
2 Issue message 'NO DUMP FILES EXIST' and return toCMS 3 Issue message 'UNABLE TO READ DUMP FROM READER' and return to CMS • Examine the dump list that resides in
DMMEDM as a constant to determine
the file name assigned to the dump;
move this name to the read 'FSCB' to facilitate subsequent reads to the
dump file. • Initialize buffers EXTPSA (terminating PSA in the dump) and EXTINREC (record 2 from the dump)
NXTWD by issuing FSREADs to the dump
file.
RDUMP • Call the nucleus load map module
(DMMMAP) to compress the nucleus load map. (See Diagram 2-6.)
Diagram 2-5. VMFDUMP IPCS Command (Part 1 of 3)
28 IBM VM/370 Service Routines Program Logic Module label Ref
REREAD LOOP DMPEND1 NODMP LOOP DMMINI EXTREAD
EXTREND