.MODEL small
.STACK 100h
.DATA
Retaz DB 'Nonazdar!',0
.CODE
Zac: mov ax,@data
mov ds,ax
mov di,0
VypisZnak: mov dl,[Retaz+di]
cmp dl,0
jz Koniec
mov ah,2
int 21h
inc di
jmp VypisZnak
Koniec: mov ax,4C00h
int 21h
END Zac