Programming Interface Information: This information is NOT intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only.

IPARM

Prolog  

Control Block Contents  

IPARM DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)   

 

 IPARM Prolog 

 Name       : HCPIPARM
 Description: IPL parameters
 DSECT      : IPARM
 Function   : IPARM maps the parameters passed in R0-R15 to CP when
              it is loaded from a module.
 Located by : In R0-R15 at entry to HCPLODNC and saved at HCPLODPM thereafter.
 Created by : HCPSAL
 Deleted by : N/A
 

IPARM Control Block Content



IPARM DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      IPARM
0000    0 Character   32 IPARMS         IPL parameters
0020   32 Bitstring    1 * (4)          reserved for future use
0024   36 Address      4 IPAEPARM       Pointer to extended IPL parms
          000000F0       IPAEPLEN       240 Length of extended IPL parms
0028   40 Bitstring    6 IPADATE        Module date/time (YYMMDDHHMMSS)
002E   46 Bitstring    1 IPAINITL       Save for SYSINITL field
002F   47 Bitstring    1 * (5)          reserved for future use
0034   52 Signed       4 IPAOFFST       Offset to parm disk
0038   56 Character    8 IPANAME        Name of CP module
          00000040       IPASIZEB       (*-IPARM) Size in bytes
          00000008       IPASIZED       (*-IPARM+7)/8 Size in d-words
 

IPARM Storage Layout

*** IPARM - Control Block in IPARM
*
*     +-------------------------------------------------------+
*   0 |                                                       |
*     =                        IPARMS                         =
*     |                                                       |
*     +---------------------------+---------------------------+
*  20 |///////////////////////////|         IPAEPARM          |
*     +---------------------------+-------------+------+------+
*  28 |                IPADATE                  |:INITL|//////|
*     +---------------------------+-------------+------+------+
*  30 |///////////////////////////|         IPAOFFST          |
*     +---------------------------+---------------------------+
*  38 |                       IPANAME                         |
*     +-------------------------------------------------------+
*  40
*
*** IPARM - Control Block in IPARM
 

IPARM Cross Reference

(contains links to field and bit definitions)
Symbol         Dspl Value
-------------- ---- -----

IPADATE        0028

IPAEPARM       0024

IPAEPLEN       0024 000000F0

IPAINITL       002E

IPANAME        0038

IPAOFFST       0034

IPARMS         0000

IPASIZEB       0038 00000040

IPASIZED       0038 00000008
This information is based on VM/ESA 2.4.0.
Last updated on 3 Aug 1999 at 12:06:34 EDT.
Copyright IBM Corporation, 1990, 1999