b12-1.asm

来自「汇编语言的设计」· 汇编 代码 · 共 22 行

	ORG	0000H
	LJMP	MAIN
	ORG 	1000H
MAIN:   MOV 	R0,#40H
        MOV 	R2,#10H
        MOV 	DPTR,#7000H
L1:     MOV 	A,@R0
        MOVX 	@DPTR,A
        INC 	R0
        INC 	DPTR
        DJNZ 	R2,L1
        MOV 	R0,#50H
        MOV 	DPTR,#7000H
        MOV 	R2,#10H
L2:     MOVX 	A,@DPTR
        MOV 	@R0,A
        INC 	R0
        INC 	DPTR
        DJNZ 	R2,L2
L3:     SJMP 	L3
        END