| 摘要 |
PROBLEM TO BE SOLVED: To shorten the fault handling time of an electronic computer and to improve the reliability of an electronic computer system by saving the state of the hardware of the electronic computer in an external storage device and efficiently reproducing and detecting a fault of the electronic computer and confirming the state by using the contents of the save information. SOLUTION: The address that a CPU 1 executes first is allocated to a ROM 15 by hardware and a program which verifies the program contents of the ROM 15 and a program which tests a main memory and an 10 controller are previously written in the ROM 15. When hardware initialization and diagnosis are performed to some extent at the power-ON and the hardware operation is secured, an initial diagnostic program checks whether or not the process when the power source is turned off last is in a 0V suspended state in a nonvolatile memory. Consequently, the process is in the 0V suspended state, SMI is issued and the information on all IO devices, the state of the CPU, and the contents of the memory which are saved on a hard disk are written back to the respective IO devices and memory. |
