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

    1.DBG> SHOW STACK
      stack frame 0 (2146814812)

          condition handler: 0
             SPA:            0
             S:              0
             mask:           ^M<R2>
             PSW:            0000 (hexadecimal)
          saved AP:          7
          saved FP:          2146814852
          saved PC:          EIGHTQUEENS\%LINE 69
          saved R2:          0
          argument list:(1)  EIGHTQUEENS\%LINE 68+2

      stack frame 1 (2146814852)
          condition handler: SHARE$PASRTL+888
             SPA:            0
             S:              0
             mask:           none saved
             PSW:            0000 (hexadecimal)
          saved AP:          2146814924
          saved FP:          2146814904
          saved PC:          SHARE$DEBUG+667
      DBG>

      In this example for VAX systems, the SHOW STACK command
      displays information about all call stack frames at the current
      PC location.