| 摘要 |
A processor includes an arithmetic device, a storage device that holds arithmetic data, a data generator that generates test data, an address generator that generates an address at which the test data is to be written, a test data number counter that counts a number of test data, an error information holder that holds mismatch error information, an error occurrence bit position holder that holds a position of a bit at which a mismatch error has occurred, an error occurrence test data number holder that holds number of test data counted by the test data number counter, and a comparator that compares test data written to the storage device with test data read from the storage device and stores error information in the error information holder and a position of a bit and number of the test data in which the mismatch error has occurred.
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