| 摘要 |
PROBLEM TO BE SOLVED: To normally apply debugging processing using a hardware braking function to a program driven in a CPU using a virtual storage and an operating system. SOLUTION: When hardware brake occurs during the debugging processing of an application program 43 and a state that a current address is a virtual address which can not be converted by a CPU 41 is detected, the debugger 22a temporarily releases the hardware braking function and executes an address error processing routine in the operating system 42 to perform address error processing. Then the hardware braking function is set again and the application program 43 is executed again. When the hardware brake occurs, the CPU 41 can access the address, so that the debugger 22a can perform code analysis operation.
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