时钟汇编语言

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1、ORG0000H JMPMAIN ORG0BH JMPTIME_0 ORG20H MAIN:MOV20H,#12 MOV21H,#0 MOV22H,#0 MOVSP,#40 MOVR2,#20 MOVTMOD,#01 MOVTH0,#3CH MOVTL0,#0AFH SETBEA SETBET0 SETBTR0 D1:;LCALLSCAN LCALLDISPLAY JMPD1 TIME_0:PUSHACC PUSHPSW DJNZR2,NEXT MOVR2,#20 MOVA,22h CJNEA,#59,LOOP1

2、 MOVA,#0H MOV22H,A MOVA,21H CJNEA,#59,LOOP2 MOVA,#00H MOVA,21H CJNEA,#23,LOOP3 MOVA,#00H MOV23H,A JMPNEXT LOOP1:INC22H JMPNEXT LOOP2:INC21H JMPNEXT LOOP3:INC20H NEXT:MOVTH0,#3CH MOVTL0,#0AFH POPPSW POPACC RETI DISPLAY:MOVDPTR,#TABLE MOVA,#01H MOVP3,A MO

3、VA,20H MOVB,#10 DIVAB MOVCA,@A+DPTR MOVP2,A LCALLDELAY MOVA,#02H MOVP3,A MOVA,B MOVCA,@A+DPTR MOVP2,A LCALLDELAY MOVA,#04H MOVP3,A MOVP2,#40H LCALLDELAY MOVA,#08H MOVP3,A MOVA,21H MOVB,#10 DIVAB MOVCA,@A+DPTR MOVP2,A LCALLDELAY MOVA,#10H MOVP3,A MOVA,B MOVCA,

4、@A+DPTR MOVP2,A LCALLDELAY MOVA,#20H MOVP3,A MOVP2,#40H LCALLDELAY MOVA,#40H MOVP3,A MOVA,22H MOVB,#10 DIVAB MOVCA,@A+DPTR MOVP2,A LCALLDELAY MOVA,#80H MOVP3,A MOVA,B MOVCA,@A+DPTR MOVP2,A LCALLDELAY DELAY:MOVR1,#50 DJNZR1,$ MOVR1,#50 RET TABLE:DB3fH,06H,5bH,

5、4fH,66H,6dH,7dH,07H,7fH,6fH,40H END