单片机数码管显示0至7数字的程序

ORG0000HMAIN:MOVR0,#11111110BMOVR5,#8LOOP3:MOVR3,#255LOOP2:MOVR7,#0MOVR2,#8MOVA,R0MOVR4,ALOOP:MOVA,R7MOVDPTR,#TABLEMOVCA,@A+DPTRMOVP0,AMOVP2,R4LCALLDELAYMOVA,R4RLAMOVR4,AINCR7DJNZR2,LOOPDJNZR3,LOOP2MOVA,R0RRAMOVR0,ADJNZR5,LOOP3SJMPMAINTABLE:DB0C0H,0F9H,0A4H,0B0H,099H,092H,082H,0F8H,080H,090HDELAY:MOVR1,#255LOOP1:DJNZR1,LOOP1RET