If you use the WATCH command, it must be entered as a single command; no other debug commands are allowed on the same command line.
WATCHon the debug command line, without any parameters.
Work with Watch
System:
Type options, press Enter.
4=Clear 5=Display
Opt Num Variable Address Length
- 1 SALARY 080090506F027004 4
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Command
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F3=Exit F4=Prompt F5=Refresh F9=Retrieve F12=CancelThe Work with Watch display shows all watches currently active in the debug session. You can clear, and display watches from this display. When you select Option 5 Display, the Display Watch window shown below displays information about the currently active watch.
Work with Watch
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: Display Watch :
: :
: Watch Number ....: 1 :
: Address .........: 080090506F027004 :
: Length ..........: 4 :
: Number of Hits ..: 0 :
: :
: Scope when watch was set: :
: Program/Library/Type: PAYROLL ABC *PGM :
: :
: Module...: PAYROLL :
: Procedure: PAYROLL :
: Variable.: SALARY :
: :
: F12=Cancel :
: :
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Command
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F3=Exit F4=Prompt F5=Refresh F9=Retrieve F12=CancelWATCH expressionon the debug command line.
This command requests a breakpoint to be set if the value of expression is changed from its current value.
%SUBSTR(X 1 5)
The scope of the expression variables in a watch is defined by the most recently issued QUAL command.
WATCH expression : watch lengthon a debug command line.
Each watch allows you to monitor and compare a maximum of 128 bytes of contiguous storage. If the maximum length of 128 bytes is exceeded, the watch condition will not be set, and the issues an error message.
By default, the length of the expression type is also the length of the watch-comparison operation. The watch-length parameter overrides this default. It determines the number of bytes of an expression that should be compared to determine if a change in value has occurred.
For example, if a 4-byte integer is specified as the variable, without the watch-length parameter, the comparison length is four bytes. However, if the watch-length parameter is specified, it overrides the length of the expression in determining the watch length.