NODISPLAY

In the following two situations, in which a user can request a specific user interface, that interface might not be available:

  • Full-screen mode using the Terminal Interface Manager. If the terminal is not available, the program being debugged terminates with a U4038 abend.
  • Remote debugger. If the remote debugger is not available, z/OS® Debugger will use full-screen mode if the user is running under TSO. If the user is not running under TSO, z/OS Debugger will use batch mode.

In both cases, Write To Operator (WTO) messages also appear.

You can modify these behaviors by specifying the EQAOPTS NODISPLAY command so that z/OS Debugger continues processing as if the user immediately entered a QUIT DEBUG command. This modification prevents any forced abend or prevents the debugger from starting.

The following diagram describes the syntax of the NODISPLAY command:

Read syntax diagramSkip visual syntax diagramEQAXOPTNODISPLAY, QUITDEBUGDEFAULT
DEFAULT
z/OS Debugger follows the default behavior.
QUITDEBUG
z/OS Debugger displays a message that indicates that z/OS Debugger will quit, and that the user interface could not be used. z/OS Debugger processing continues as if the user entered a QUIT DEBUG command.

Example

EQAXOPT NODISPLAY,QUITDEBUG