| 摘要 |
PROBLEM TO BE SOLVED: To select and supply a firmware suited to a processor from plural different firmwares. SOLUTION: This system is provided with a main storage circuit 3 holding the plural firmwares different from each other, a diagnostic processor 4 distinguishing the revision of the suited firmware to instruct to the processor and processors 1, 2 selecting the firmware instructed by the processor 4 from among the plural firmwares held by the circuit 3, storing it in a control memory in the processors and supplying the read data for the processor themselves.
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