something simple is eluding me here can anyone help

[jonriba]

How would you go about allowing the user to enter a string of numbers, or anything longer than 1 digit?


:8)
TITLE ADD
.model small
.stack 100h
.data

add_msga    db    10,13, "Enter Number 1: $"
add_msgb    db    10,13, "Enter Number 2: $"
add_num1    db  ?
add_num2    db    ?
add_result    db    ?

.code
main PROC
mov ax,@data
mov ds,ax

call AddNumbers

mov ax, 4c00h
int 21h
main ENDP


AddNumbers PROC
;get num1
    mov ah, 09h
    mov dx, offset add_msga
    int 21h
   
    mov ah, 1h
    int 21h
    mov add_num1, al
   
;get num2
    mov ah, 09h
    mov dx, offset add_msgb
    int 21h
   
    mov ah, 1h
    int 21h
    mov add_num2, al

;add [numbers]
    mov al, add_num1
    add al, add_num2
    mov add_res, al
   
;output result
    mov ah, 09h
    mov dx, offset add_res
    int 21h

    ret

AddNumbers endp

END main

[mnemonic]

If I were you, I'd have a look into the 16 bit DOS Programming Subforum. ;)

I'm pretty sure that the question has been already answered there.

Regards

EDIT:
Hell, I'm sure that in the campus was a sticky thread called "If your code contains int 21h..."  :eek

[MichaelW]

jonriba,

Double posting is not any way to get help here. One post per topic is sufficient.

You can use the Buffered Keyboard Input function (interrupt 21h function 0Ah) to read a string from standard input. You will need code to convert the input strings to number values, and code to convert the result of the addition to a string that can be displayed. Try searching this forum as mnemonic suggested.