Adding and Deleting Symbols from the Pointer Stack

Within the symbol table is the IPCS pointer stack. The pointer stack consists of pointers with symbols in the form Znnnnn. IPCS determines the number of the symbol.

The pointer panel in the BROWSE option of the IPCS dialog uses the same pointer stack. Any changes made to the stack in line mode will change the pointers in the IPCS dialog.

To add a pointer to the IPCS pointer stack, use the STACK subcommand. For example, to add a pointer to address X'FFFF' in the dump, enter:

stack ffff. nodrop

You can view the pointers on the stack by using the pointer panel of the BROWSE option of the IPCS dialog or by using the LISTSYM subcommand. For example, to list all symbols from X to Z00010 inclusive, enter:

listsym (x:z00010)

IPCS displays the following list of symbols:

  X            36000. CPU(X'00') ASID(X'0001') LENGTH(2147262464) AREA DROP
  Z1               0. CPU(X'00') ASID(X'0001') LENGTH(4) AREA DROP
  Z2            5555. CPU(X'00') ASID(X'0001') LENGTH(4) AREA DROP
  Z3            FFFF. CPU(X'00') ASID(X'0001') LENGTH(4) AREA NODROP
  4 DEFINITIONS LISTED

To delete a symbol from the pointer stack, use the DROPSYM subcommand, then use the RENUM subcommand to renumber all the stack symbols in the symbol table. Renumbering the symbols will return them to contiguous ascending order.

The following example, which was run after the previous LISTSYM and STACK subcommands, renumbers the pointer stack symbols and displays a message indicating the number of stack entries and the number of stack entries renumbered:

renum summary

  The stack contains 3 entries, none of which were renumbered