IMMBLOK

Prolog  

Control Block Contents  
   IMMBLOK DSECT

Storage Layout  

Cross Reference (Contains links to field and bit definitions)  

IMMBLOK Prolog

 Name       : IMMBLOK
 Description: Immediate Command Support
 DSECT      : IMMBLOK
 Function   : Mapping macro which maps information describing
              the characteristics of an immediate command.
              This block is created whenever an immediate
              command is established; it contains information
              about the immediate command. IMMBLOK is called
              by the IMMBLOK macro.

IMMBLOK Control Block Content

IMMBLOK DSECT

Hex   Dec Type/Val   Lng Label (dup)    Comments
---- ---- --------- ---- -------------- --------
0000    0 Structure      IMMBLOK        Immediate Command Support
          00000000       IMMNEXTD       *-IMMBLOK IMMNEXT DISP INTO
                                        IMMBLOK
0000    0 Address      4 IMMNEXT        POINTER TO NEXT IMMBLOK
          .... .1..      IMMNEXTL       4 LENGTH OF IMMNEXT FIELD
0004    4 Signed       4 IMMUWORD       USER WORD
0008    8 Character    8 IMMNAME        IMMEDIATE COMMAND NAME
0010   16 Bitstring    1 IMMFLAG1       FLAGS
          1... ....      IMMSYS         X'80' IMMEDIATE COMMAND IS A
                                        NUCLEUS EXTENSION WITH SYSTEM
                                        ATTRIBUTE
          .1.. ....      IMMCOUNT       X'40' IMMEDIATE COMMAND
                                        ESTABLISHED VIA IMMCMD COMMAND
          ..1. ....      IMMNUCX        X'20' IMMEDIATE COMMAND IS A
                                        NUCLEUS EXTENSION
          ...1 ....      IMMAM31        X'10' AMODE OF EXIT IS AMODE 31
0011   17 Bitstring    1 IMMFLAG2 (3)   FLAGS
0014   20 Address      4 IMMADDR        ADDRESS OF EXIT ROUTINE
0018   24 Signed       4 IMMHIDE        NUMBER OF NUCLEUS EXTENSIONS THAT
                                        ARE HIDING THIS IMMEDIATE COMMAND
0020   32 Dbl-Word     8 IMMEND (0)
          00000004       IMMDWDS        (*-IMMBLOK)/8 SIZE IN DOUBLEWORDS
          00000020       IMMBYTES       (*-IMMBLOK) SIZE IN BYTES

IMMBLOK Storage Layout

          
*** IMMBLOK - Immediate Command Support
*
*     +---------------------------+---------------------------+
*   0 |         IMMNEXT           |         IMMUWORD          |
*     +---------------------------+---------------------------+
*   8 |                       IMMNAME                         |
*     +------+--------------------+---------------------------+
*  10 |:FLAG1|     IMMFLAG2       |         IMMADDR           |
*     +------+--------------------+---------------------------+
*  18 |         IMMHIDE           |///////////////////////////|
*     +---------------------------+---------------------------+
*
*** IMMBLOK - Immediate Command Support

IMMBLOK Cross Reference

Symbol         Dspl Value
-------------- ---- -----
IMMADDR        0014
IMMAM31        0010 10
IMMBYTES       0020 00000020
IMMCOUNT       0010 40
IMMDWDS        0020 00000004
IMMEND         0020
IMMFLAG1       0010
IMMFLAG2       0011
IMMHIDE        0018
IMMNAME        0008
IMMNEXT        0000
IMMNEXTD       0000 00000000
IMMNEXTL       0000 04
IMMNUCX        0010 20
IMMSYS         0010 80
IMMUWORD       0004