接口编程题改

输入设备接口数据端口、状况端口、控制端口地址分别为70H,71H,72H。状况端口D5=1标明输入结束,控制端口D7=1标明启动设备输入(输入结束后由设备根除该位)。从该设备输入100个字节数据...

(Input device interface data port, status port, control port addresses are 70H, 71H, 72H respectively. The status port D5=1 indicates the end of the input, and the control port D7=1 indicates the start of the device input (the bit will be eradicated by the device after the end of the input). Input 100 bytes of data from this device...)

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