ASM program to reverse the given string

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MOV AX, DATA
MOV DS, AX
MOV ES, AX
MOV CL, 03
LEA SI, A
MOV AX, 04
ADD DI, AX
L1:	MOV AL, [SI]
XCHG AL, [DI]
MOV [SI], AL
INC SI
DEC DI
LOOP L1
END

MOV AX, DATA MOV DS, AX MOV ES, AX MOV CL, 03 LEA SI, A MOV AX, 04 ADD DI, AX L1: MOV AL, [SI] XCHG AL, [DI] MOV [SI], AL INC SI DEC DI LOOP L1 END