一延时程序,我看不懂,希望各位大哥帮我解释一下是怎么延时的<br /><br />//===5ms延时=====<br />DELAY: LDI DELAY_TIMER2,03H<br /> LDI DELAY_TIMER1,03H<br /> LDI DELAY_TIMER0,0CH <br />DELAY_LOOP: SBIM DELAY_TIMER0,01H<br /> LDI CLEAR_AC,00H //清零A寄存器<br /> SBCM DELAY_TIMER1,00H<br /> LDI CLEAR_AC,00H //清零A寄存器<br /> SBCM DELAY_TIMER2,00H<br /> BC DELAY_LOOP<br /> RTNI |
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