The COBOL PERFORM traceback shows the sequence of PERFORMs, including nested PERFORMs, that were
executed to arrive at the event source line. The traceback will not appear if the compiler inlined
the procedure, which can happen when OPT is in effect.
❷
Automatic Binary Optimizer for z/OS® (ABO) information
will only appear here if a COBOL program has been optimized by ABO.
❸
The general purpose registers are initially displayed in accordance with the event AMODE, or
defaults to AMODE 31 if no event AMODE has been determined. However, by selecting the AMODE 64, 31
or 24 point-and-shoot fields, the register display changes accordingly. In addition, the default
display of the number of bytes in the register description is decimal, but this can be changed to
hexadecimal or back to decimal again by selecting the Dec or Hex point-and-shoot fields.
All information that is associated with the currently selected event is
either already included in the displayed information, or a point-and-shoot
link to the information is provided in yellow. Such links include message
and abend codes for which an explanation can be provided if selected
(refer to Expanding messages and abend codes) and associated
storage areas (refer to Displaying associated storage areas).
To select the previous or next event from the one currently displayed
(when the fault includes more than one event), point-and-shoot links in
yellow are provided at the bottom of the display. Simply place the cursor
on one of these and press the Enter key.