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# Program to read two digits whose sum is less than 0, computes and display their sum (without using variables)

Posted By: Easy Tutor     Category: Assembly Language     Views: 3797

## Code for Program to read two digits whose sum is less than 0, computes and display their sum (without using variables) in Assembly Language

``` .MODEL SMALL
.STACK 100H

.DATA
PROMPT_1  DB  'Enter the First digit : \$'
PROMPT_2  DB  'Enter the Second digit : \$'
PROMPT_3  DB  'Sum of First and Second digit : \$'

.CODE
MAIN PROC
MOV AX, @DATA                ; initialize DS
MOV DS, AX

LEA DX, PROMPT_1             ; load and display the PROMPT_1
MOV AH, 9
INT 21H

MOV AH, 1                    ; read a character\digit
INT 21H

MOV BL, AL                   ; save First digit in BL in ASCII code
SUB BL, 30H

MOV AH, 2                    ; carriage return
MOV DL, 0DH
INT 21H

MOV DL, 0AH                  ; line feed
INT 21H

LEA DX, PROMPT_2             ; load and display the PROMPT_2
MOV AH, 9
INT 21H

MOV AH, 1                    ; read a character
INT 21H

MOV BH, AL                   ; save Second digit in BH in ASCII CODE
SUB BH, 30H

MOV AH, 2                    ; carriage return
MOV DL, 0DH
INT 21H

MOV DL, 0AH                  ; line feed
INT 21H

LEA DX, PROMPT_3             ; load and display the PROMPT_3
MOV AH, 9
INT 21H

ADD BL, 30H                  ; convert ASCII to DECIMAL code

MOV AH, 2                    ; display the character
MOV DL, BL
INT 21H

MOV AH, 4CH                  ; return control to DOS
INT 21H
MAIN ENDP
END MAIN

;**************************************************************************;
;**************************************************************************;
;------------------------------  THE END  ---------------------------------;
;**************************************************************************;
;**************************************************************************;
[/Code][/Code]```
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