| 摘要 |
PROBLEM TO BE SOLVED: To provide a simulation program reducing CPU load by avoiding excessive use of bus resources which may be caused by external interrupt processing included in an infinite loop. SOLUTION: When an infinite loop is included in a source code, there is no code escaping from the infinite loop except external interruption and there is also no code having side effects to the outside of the loop, a processing program adds a return address of external interrupt processing in the infinite loop to a map in preprocessing. When a simulation program operates in a computer system, reaches the infinite loop and arrives at the external interrupt processing code in the infinite loop, the simulation program executes the external interrupt processing. When the external interrupt processing is performed as a result of interruption check and processing is returned from the external interrupt processing, whether the return address of the external interrupt processing exists in the map or not is checked. When the return address exists, a thread of the simulation program is stopped. COPYRIGHT: (C)2010,JPO&INPIT |
