Library /sys$common/syshlp/dbg$help.hlb DEBUG, SHOW, STACK, Description  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    For each call frame, the SHOW STACK command displays information
    such as the condition handler, saved register values, and the
    argument list, if any. The latter is the list of arguments passed
    to the subroutine with that call. In some cases the argument list
    can contain the addresses of actual arguments. In such cases, use
    the EXAMINE address-expression command to display the values of
    these arguments.

    On VAX processors, each routine invocation results in a call
    frame on the call stack.

    On Alpha processors, a routine invocation can result in a stack
    frame procedure (with a call frame on the stack), a register
    frame procedure (with a call frame stored in the register set),
    or a null frame procedure (without a call frame). SHOW STACK
    provides information on all three: stack frame procedures,
    register frame procedures, and null frame procedures. (See
    Example 2 below.)

    Related command:

       SHOW CALLS