- 1. A condition that occurs when programming errors are detected by an I/O channel.; 当输入输出通道检查出程序设计有错时所出现的一种状态。 2. In System/7, an error condition that occurs when the processor attempts to execute an invalid operation code or attempts to access an address outside the capacity of the machine. This condition is signalled by a class interrupt. | 在IBMSystem/7中,当处理机试图执行一个无效操作码或试图存取一个超出计算机容量的地址时所 出现的一种差错状态。这种状态用某一类中断告知。参阅machine check, I/O。
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