b7-2.asm

汇编语言的设计

	ORG	0000H
	LJMP	MAIN
        ORG 	000BH
        CPL 	P1.1
        MOV 	TH0,#0F8H
        MOV 	TL0,#06H
        RETI
        ORG 	001BH
        CPL 	P1.2
        MOV 	TH1,#0F8H
        MOV 	TL1,#06H
        RETI
        ORG 	1000H
MAIN:   MOV 	TH0,#0F8H
        MOV 	TL0,#06H
        MOV 	TH1,#0F8H
        MOV 	TL1,#06H
        MOV 	TMOD,#11H
        MOV 	TCON,#50H
        MOV 	IE,#8AH
L1:     SJMP 	L1
        END