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CHAPTER2 Dependence Functions
2.1.8.1 Code Break
This function causes a break by monitoring a specified address by software.
A break occurs before executing an instruction at the specified address.
■ Code Break
When the program reaches a break point (immediately before executing the instruction at the memory
location), the simulator debugger executes the following processes:
1. Suspend program execution (before executing instruction).
2. Checks count of arrival time. If the count of arrival time at the specified break point has not yet been
reached, the simulator resumes the program execution. If the count of arrival time has been reached, the
simulator proceeds to step 3.
3. Displays memory location where execution suspended on Status Bar.
Break points can be set as follows.
• For simulator debugger of normal speed: 65535 points
• For simulator debugger of high speed: 67 points
When the code break occurs, the following message appears at the status bar.
Break at address by breakpoint
■ How to set
Set code break as follows.
• Dialog
- "Code" tab in breakpoint setting dialog
For details, refer to "4.6.4 Breakpoint" in "SOFTUNE Workbench Operation Manual".
•Window
- Source window/disassemble window
For details, refer to "3.7 Source Window" or "3.9 Disassemble Window" in "SOFTUNE Workbench
Operation Manual".
• Command
- SET BREAK
For details, refer to "3.1 SET BREAK (type 1)" in "SOFTUNE Workbench Command Reference
Manual".
Note:
In order to set breakpoints, it is required to set memory map to high-speed simulator debugger.
When the memory map defined area is changed to an undefined attribute, the breakpoints are
cancelled.