The z/OS Debugger full screen interface

After you start z/OS® Debugger, the z/OS Debugger screen appears:

COBOL    LOCATION: EMPLOOK initialization
Command ===>                                                   Scroll ===> PAGE
MONITOR --+----1----+----2----+----3----+----4----+----5----+----6 LINE: 0 OF 0
******************************* TOP OF MONITOR ********************************
****************************** BOTTOM OF MONITOR ******************************



SOURCE: EMPLOOK --1----+----2----+----3----+----4----+----5----+ LINE: 1 OF 349
       1        ************************************************************  .
       2        *                                                          *  .
       3        *                                                          *  .
       4        ************************************************************  .
       5                                                                      .
       6        ************************************************************  .
       7         IDENTIFICATION DIVISION.                                     .
       8        ************************************************************  .
       9         PROGRAM-ID.    "EMPLOOK".                                    .
LOG 0----+----1----+----2----+----3----+----4----+----5----+----6- LINE: 1 OF 5
********************************* TOP OF LOG **********************************
IBM z/OS Debugger 17.0.n                 
10/04/2024 03:55:40 AM                    
5724-T07: Copyright IBM Corp. 1992, 2024
PF  1:?           2:STEP       3:QUIT       4:LIST       5:FIND      6:AT/CLEAR
PF  7:UP          8:DOWN       9:GO        10:ZOOM      11:ZOOM LOG 12:RETRIEVE

The default screen is divided into four sections: the session panel header and three physical windows. The sessional panel header is the top two lines of the screen, which display the header fields and a command line. The header fields describe the programming language and the location in the program. The command line is where you enter z/OS Debugger commands.

A physical window is the space on the screen dedicated to the display of a specific type of debugging information. The debugging information is organized into the following types, called logical windows:

Monitor window
Variables and their values, which you can display by entering the SET AUTOMONITOR ON and MONITOR commands.
Source window
The source or listing file, which z/OS Debugger finds or you can specify where to find it.
Log window
The record of your interactions with z/OS Debugger and the results of those interactions.
Memory window
A section of memory, which you can display by entering the MEMORY command.

The default screen displays three physical windows, with one assigned the Monitor window, the second assigned the Source window, and the third assigned the Log window. You can swap the Memory window with the Log window.

Refer to the following topics for more information related to the material discussed in this topic.

  • Related references
  • z/OS Debugger session panel
  • MEMORY command in IBM® z/OS Debugger Reference and Messages
  • MONITOR command in IBM z/OS Debugger Reference and Messages
  • SET AUTOMONITOR command in IBM z/OS Debugger Reference and Messages
  • WINDOW SWAP command in IBM z/OS Debugger Reference and Messages