aaa

ale.asm

ORG 0
SJMP MAIN

ORG 30H
MAIN:
MOV P1,#00H
LOOP:
JB P3.3,NEXT
MOV P1,#00H
SJMP LOOP
NEXT:
JB P3.2,LOOP
MOV P1,#07H
ACALL DELAY
MOV P1,#0EH
ACALL DELAY
MOV P1,#1CH
ACALL DELAY
MOV P1,#38H
ACALL DELAY
MOV P1,#70H
ACALL DELAY
MOV P1,#0E0H
ACALL DELAY
MOV P1,#70H
ACALL DELAY
MOV P1,#38H
ACALL DELAY
MOV P1,#1CH
ACALL DELAY
MOV P1,#0EH
ACALL DELAY
SJMP LOOP

DELAY:
MOV R7,#100
D1:
MOV R6,#255
D2:
DJNZ R6,D2
DJNZ R7,D1
RET

END