data segment

list1 LABEL Byte

maxl DB 30

actl DB ?

kb_data DB 20 dup('0')

msg1 db 'Palindrome $'

msg2 db 'Not Palindrome $'

msg3 db "Enter String $"

data ends

code segment

ASSUME CS:code,DS:data,ES:data

start:

mov ax,data

mov ds,ax

mov es,ax

mov ah,09

lea dx,msg3

int 21h

MOV AH,0AH

LEA DX,list1

INT 21H

LEA SI,kb_data

MOV Al,actl

MOV AH,00H

LEA DI,kb_data

ADD DI,ax

dec di

MOV cl,02h

div cl

MOV CL,AL

LEA SI,kb_data

CALL palindrome

CMP dl,01h

JNZ same

MOV Ah,09h

LEA Dx,msg2

INT 21H

jmp skip2

same: MOV Ah,09h

LEA Dx,msg1

INT 21H

skip2: mov ah,4ch

int 21h

palindrome proc near

mov dl,0h

AGAIN: MOV AL,[SI]

MOV BL,[di]

CMP al,bl

JNZ skip

INC SI

dec di

dec cl

JNZ AGAIN

RET

skip: MOV DL,01H

RET

palindrome ENDP

code ends

end start