Description: Hardware interrupt clock design using the existing PC series microcomputer hardware and software resources, the preparation of procedures, so that the screen displays XX (when): XX (points): XX (seconds), and updated once per second display.
- [mm] - With 8255,8253,8259 realize is displayed
- [IFLEAP] - This is a judge in a particular year a l
- [yingjinzhongduangshijing] - Hardware interrupt clock design using th
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