led.asm

汇编语言开发的各种实用程序

                     ORG  0000H
					 LJMP MAIN
					 ORG  0300H

MAIN:
START:               MOV R1,#00H

NEXT:                MOV A,R1

                     MOV DPTR,#TABLE

                     MOVC A,@A+DPTR

                     MOV P0,A

                     LCALL DELAY

                     INC R1

                     CJNE R1,#10,NEXT

                     LJMP START

DELAY:              MOV R5,#20

D2:                 MOV R6,#20

D1:                 MOV R7,#248

                    DJNZ R7,$

                    DJNZ R6,D1

                    DJNZ R5,D2

                    RET

TABLE:              DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH

                    END