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#2
爱以走远2007-04-29 18:22
start: mov a,0f8h mov pac,a ; mov a,0 mov pa,a loop:clr pa.2 set pa.0 ;红灯亮,黄灯灭 delay1: mov a,1 ;delay1秒 mov r1,a lp12: mov a,165 mov r2,a lp11: sdz r2 jmp lp11 sdz r1 jmp lp12 clr pa.0 set pa.1 ;黄灯亮,红灯灭 delay2: mov a,1 ;delay1秒 mov r1,a lp22: mov a,165 mov r2,a lp21: sdz r2 jmp lp11 sdz r1 jmp lp12 clr pa.1 set pa.2 ;绿灯亮,黄灯灭 delay3: mov a,1 ;delay1秒 mov r1,a lp32: mov a,165 mov r2,a lp31: sdz r2 jmp lp11 sdz r1 jmp lp12 jmp loop
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