| 摘要 |
PROBLEM TO BE SOLVED: To discriminate existence of an un-initialized initial value undefined register through an un-initialized flag housing RAM. SOLUTION: This emulator is equipped with an un-initialized flag housing means 7 initialized to one level by an initialization circuit 11, re-initialized by overwriting a reverse polarity level of one level even by an initialization program of an emulation program together with the initial value undefined register comprising a stored data RAM 21 not initialized by the initialization circuit 11, and memorizing the result of initialization, and an event generation means 9 for detecting whether initialization of the initial value undefined register is executed normally or not based on the memory content in the un-initialized flag housing means 7 after re-initialization, and controlling event generation of an emulation CPU 12 when data showing un-initialization is detected. |
