HP 68302 User Manual page 176

To trace before a particular variable value and break
Double-click the desired global variable.
1
2
Choose the Trace→Variable Break... (ALT, T, B) command.
Enter the value in the Value text box.
3
Choose the OK button.
4
The Trace→Variable Break... (ALT, T, B) command breaks execution as soon
as the specified value is written to the specified global variable.
The command also breaks execution at the Assembler symbol specified by its
name and size.
Chapter 5: Debugging Programs
Tracing Program Execution
177