COBOL Manual for TNS/E Programs (H06.03+)

Executing and Debugging HP COBOL Programs

HP COBOL Manual for TNS/E Programs—520347-003

25-6

Providing for an Unavailable Printer

If you want the operating environment to return control to your program if a certain

printer is unavailable or out of paper, you must execute a PARAM PRINTER-

CONTROL command before executing your program.

This command specifies that control is to return to the program if the printer assigned

to THE-PRINTER is unavailable or out of paper:

PARAM PRINTER-CONTROL THE-PRINTER

Turning On External Switches

If your program declares external switches in the SPECIAL-NAMES paragraph and

you want any of them to be in the ON position when your program begins to execute,

you must turn them on with PARAM SWITCH-nn commands before executing your

program. You can turn on several switches with a single PARAM SWITCH-nn

command or use multiple PARAM SWITCH-nn commands.

This command turns on SWITCH-1, SWITCH-4, and SWITCH-15:

PARAM SWITCH-1 ON, SWITCH-4 ON, SWITCH-15 ON

This series of commands is equivalent to the previous command:

PARAM SWITCH-1 ON

PARAM SWITCH-4 ON

PARAM SWITCH-15 ON

Requesting a Debugger Instead of ABEND

If you want your program to call a debugger, rather than ABEND, after printing any fatal

error messages, you must execute a PARAM INSPECT ON command before

executing your program. The PARAM INSPECT ON command is:

PARAM INSPECT ON

Specifying Waited Input-Output

To cause your HP COBOL program to do all its input-output in the wait mode, execute

the command PARAM WAITED-IO ON before you execute the program. For more

information, see PARAM Command.