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| data segment
mess1 DB 'entrez votre put1 de message'
DB 10,13, '$'
mess2 DB 'votre message'
DB 10,13, '$'
Buffer1 DB 10,?,11 DUP ('$')
Buffer2 DB 10,?,11 DUP('$')
data ends
code segment
assume CS: code
debut:
mov ax,data
mov ds,ax
mov ah,09h
mov dx,offset mess1
int 21h
mov ah,0Ah
lea dx,buffer1
int 21h
mov ah,09h
mov dx,offset mess2
int 21h
mov cx,0
mov cl,offset buffer1+1
lea SI,buffer1
lea DI,buffer2
mov bh,0
;cherche fin de la chaine
trouve_null:
mov bl,[SI]
cmp bl, '$'
je trans
inc si
jmp trouve_null
mov ah,0
;inversion chaine dans buffer2
trans:
mov AL,[SI]
mov [DI],AL
dec SI
inc DI
loop trans
mov AL,'$'
mov [DI],AL
;affichage de la chaine inversé
mov ah,09h
mov dx,offset buffer2 + 2
int 21h
;fin programme
mov ah,4Ch
int 21h
code ends
end debut |
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