Chương trình mẫu:
ORG 000H
MOV R2,#0FEH
MAIN:
MOV DPTR,#BITMAP
X1:
MOV A,#0
MOVC A,@A+DPTR
MOV P0,A
MOV P2,R2
CALL DELAY
MOV P2,#0FFH ;CHONG LEM
INC DPTR
MOV A,R2
RL A
MOV R2,A
CJNE A,#0FEH,X1
JMP MAIN
;******************************************
DELAY:
MOV R7,#200
DJNZ R7,$
RET
;******************************************
BITMAP:
DB 0F8H,24H,22H,21H,21H,22H,24H,0F8H
END
Nguồn: www.sangthai.com.vn