| 摘要 |
PURPOSE:To exactly monitor an instruction operation of a computer having an instruction queuing function, and to improve the reliability of a product, by simulating an instruction queuing operation of a microcomputer, and excuting the processing externally. CONSTITUTION:To a microcomputer system 2 by a microcomputer 1 having an internal insturction queue, an instruction operation monitoring and processing device 20 is connected, and to an address information controlling circuit 8 of this device 20, address information of the ocmputer 1 is provided. Also, data information from the computer, information of an instruction queue operating state, etc. are provided to an external monitoring control part 3 of the device 20, relation of the instruction queue operating state, etc. is checked, and after that, they are stored in a pseudo instruction queue 5, and its stored instruction quantity is displayed on a pseudo instruction queue pointer 6. Also, address information of the circuit 8 is stored in a program counter 9. Subsequently, the instruction queue operation is simulated by the device 20, the same state as queuing in the computer 1 is realized, and the instruction operation of the computer is monitored exactly. |
