JB 00H,SUBR
ADDR:
INC R0
CJNE R0,#09H,LOOP
MOV R0,#00H
AJMP LOOP
SUBR:
DEC R0
CJNE R0,#0FFH,LOOP
MOV R0,#08H
AJMP LOOP
DELAY:
MOV TH0,#0D8H
MOV TL0,#0F0H
MOV R7,#00H
SETB TR0
TIMELOOP: CJNE R7,#64H,TIMELOOP
CLR TR0
RET
DATAS:
DB 00H,01H,02H,04H,08H,10H,20H,40H,80H
END
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