BPT monitor command breakpoint is to be set or cleared. The value may be positive or negative, as described below. l If no "step" is specified, all the breakpoints in the specified program are cleared. l If the value is positive, a breakpoint is set in the specified program at this step. l If the value is negative, the action of the command depends upon whether or not the "expression_list" parameter is specified, as described below: o If "expression_list" is omitted, the breakpoint specified by the "program" parameter and the absolute value of "step" is cleared.
o If "expression_list" is present, a non-pausing breakpoint is set in the specified (or implied) program at the step indicated by the absolute value of "step". expression_ list Optional list of one or more expressions. If specified, the list must be enclosed in parentheses. If multiple expressions are specified, they must be separated by commas. Expressions can be of any type: real, string, location, etc. The values of the expressions are displayed on the Monitor screen when the breakpoint is encountered during program execution. Details NOTE: For systems using the ACE interface, breakpoints can be set/removed using the controls in the Program Editor tool.
For more details, see the ACE User's Guide . This command allows breakpoints to be set or cleared in programs during debugging. A breakpoint is a special marker in a program that optionally pauses program execution and optionally displays values on the Monitor screen when the breakpoint is encountered. Breakpoints are logically attached to a program step called the "target step". Breakpoints are triggered before the target step is executed. When a breakpoint is triggered, the values of any expressions associated with the breakpoint are displayed and then execution pauses (unless it is a non-pausing breakpoint).
When program execution pauses due to a breakpoint, you can issue any monitor command you wish. For example, you may want to use STATUS to determine the execution status, LISTR to display the values of variables, or BPT to clear the breakpoint that caused the pause. Execution can be continued after a breakpoint using one of the following commands: PROCEED, RETRY, SSTEP, or XSTEP. eV+Operating System Reference Guide, 2.x,18321-000 Rev A Page 43