| 摘要 |
PURPOSE:To avoid the process discontinuation by continuing the process up to the prescribed frequency although the error may occur at the data memory part and thus stopping the announcement to the operating system to be given due to occurrence of the error. CONSTITUTION:In case some error is detected at data memory part 8, the block having the error is registered not to be used thereafter. For this purpose, the logic product is secured via AND circuit 5 between signals 106a-106d produced at control circuit 4 and the signals 102a-102d read out from memory part 2e of directory memory part 2. Then output signals 107a-107d are written into application possibility display part 2e, and at the same time counter register 11 is given +1. If the value of register 11 coincides with the value of register 12 which designates the error generation frequency, machine error signal 115 turns to logic ''1'' to be informed to the operating system. And in the case of noncoincidence, the block having the error becomes unusable but the process is continued as before. |
