program to add

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charunanda

Joined: 09 Nov 2011
Posts: 2
Location: india

charunanda 09 Nov 2011, 17:15

org 100h
use16
mov al,01h
mov bl,01h
add al,bl
mov ah, 09
mov dl,al
int 21h
mov ah,01
int 21h
mov ah, 4ch
int 21h

i wrote this to add 2 numbers. but when i compile it shows 1pass etc. when i run its not working, instead computer beeps ans shows some error. what could be wrong with this program. pl help me to rectify that.

_________________
Thanking you in advance

CHARU

09 Nov 2011, 17:15

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20519
Location: In your JS exploiting you and your system

revolution 09 Nov 2011, 17:20

Moving to DOS

09 Nov 2011, 17:20

DJ Mauretto

Joined: 14 Mar 2007
Posts: 464
Location: Rome,Italy

DJ Mauretto 09 Nov 2011, 19:42

Try This:

Code:

org 100h

        mov al,01h
  mov bl,01h
  add al,bl
   mov ah, 02
  mov dl,al
   add dl,30h
  int 21h

 ret

_________________
Nil Volentibus Arduum Razz

09 Nov 2011, 19:42

bitshifter

Joined: 04 Dec 2007
Posts: 796
Location: Massachusetts, USA

bitshifter 10 Nov 2011, 07:18

add dl,'0' is easier to read for me...

10 Nov 2011, 07:18

charunanda

Joined: 09 Nov 2011
Posts: 2
Location: india

charunanda 10 Nov 2011, 14:18

I copied and run code given by DJ Mauretto. But i cant see the otput. the outpmt screen come and then vanishes. what could be the reason?

10 Nov 2011, 14:18

DJ Mauretto

Joined: 14 Mar 2007
Posts: 464
Location: Rome,Italy

DJ Mauretto 10 Nov 2011, 15:14

Quote:

I copied and run code given by DJ Mauretto. But i cant see the otput. the outpmt screen come and then vanishes. what could be the reason?

The reason is that you must run this program under dos shell..
anyway now i added a wait for a key

Code:


org 100h

        mov al,01h
        mov bl,01h
        add al,bl
        mov ah, 02
        mov dl,al
        add dl,30h
        int 21h

        xor ax,ax
        int 16h
        ret

_________________
Nil Volentibus Arduum Razz

10 Nov 2011, 15:14

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