术语 | interrupt enable and interrupt disable |
释义 | interrupt enable and interrupt disable 中断开放和中断封锁(指令) The instructions which set or reset an interruptcontrol flipflop. They allow the disabling of the interrupt request, whenever necessary. In microprocessors not having this feature, one way to achieve the same result is to use the external enable to gate the interrupt signals. The hardware, in turn, can be controlled by a conventional output. 用来置位和复位中断控制触发器的一些指令,一旦需要时,这些指令可用来封锁中断请 求。在不具有这些指令的微处理机中,为了获得同样的效果,可采用外加的选择开关来选通 中断信号,选通开关可由微处理机的一条常规的输出指令来控制。 |
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