Dos Assembly problem

[Dvs]

Title hello1

 

DOSSEG

 

.MODEL SMALL

 

.STACK 100h

 

.DATA

 

buffer db 20,?,20 Dup(?)

enter db 13,10,'$'

 

.CODE

 

Start: mov ax,@DATA

mov ds,ax

 

; Diavasma string

lea dx,buffer

mov ah,0Ah

int 21h

 

; emfanisi enter

lea dx,enter

mov ah,9h

int 21h

 

; emfanisi string

lea dx,buffer[2]

mov ah,09h

int 21h

 

mov ah,4Ch

int 21h

 

END Start

 

giati o sigekrimenos kodikas den ektiponei to string ? (sta maura grammata)

kamia idea?

[Billman]

File Dvs,

to sygkekrimeno interrupt service (09h - int 21h) perimenei na brei ston dx ton pointer se ena string pou teleiwnei me to amerikaniko dollario ($). To buffer(buffer db 20,?,20 Dup(?)) 8elei ligh dior8wsh etsi wste na doulepsei.

[Dvs]

Auto leo kai ego! Afou auto pou les isxiei tha eprepe na arxisei na tiponei oti vriskei apo tin dieuthinsi pou deixnei o dx mexri na brei to proto '$' . sosta? Alla to provlima einai oti den tiponei tipota!!!!

 

Akoma kai na valeis to $ sto telos tou string pali tipota den tha tiposei!

 

Entometaxi to sigekrimeno interrupt douleuei kanonika se alla programmata sto idio pc :>

[bandito]

Χρησιμοποίησε κάποιο debug utility κανε step. Δεν αν γεμίζει όντως ο buffer με το αλφαριθμητικό που του εισαγεις. Ο κώδικας πάντος φαίνεται σωστός.

[Dvs]

To string mpainei stin thesi tou, to lenght einai ok (asxeto) , to interrupt eivai se dekaexadiko, fortonei sosta tin dieuthinsi tou string, o ah exei sosti timi ALLA DEN DOULEUEI :>

 

ti allo mporei na ftaiei?