2: ORG 0000H
LJMP MAIN
ORG 0030H
MAIN MOV R1,#50H ;置片内RAM地址指针50H
MOV DPTR,#60000H ;置片外RAM地址指针10000H
MOV R2,#10 ;数据块长度
LOOP: MOV A,@R1
MOVX @DPTR,A
INC R1
INC DPTR
DJNZ R2,LOOP
SJMP $
END