术语 | hardware interrupt facility |
释义 | hardware interrupt facility 硬件中断功能;[硬体岔断功能] An interrupt facility that permits input/output operations to be scheduled under interrupt control. The interrupt facility may be selectively enabled or disabled under program control. When the interrupt facility is enabled, a device generates a processor interrupt each time it is ready to receive or transmit data. Use of the interrupt facility enables input/output operations to be performed simultaneously with computing. 在中断控制情况下,允许对输入输出操作进行调度的一种中断功能。根据程序控制的要求有选择地启用或停用中 断功能,每当启用中断功能时,外设就可产生一个处理机中断,准备接收和发送数据。 利用中断功能就可以在计算的同时去完成输入输出操作。 |
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