subject... assembly language,,

If you know Assembly language,,,x86,,,,,,,,asm ,,, then answer please,,,,

I have a question and i have an answer,,, but ineed to modify my answer,,,,

the question is:

Implement a simple 4 functios calculator for 16 or more digit ,,,,i mean for unlimited digit,,,

The user will chose between the operation type +,-,* or /

The result will be displayed.

Work with 32 bits variables and register

i have a sample answer,,,, please send me a new copyable code with output,,,,use x86,,, asm,,,,, use 32 bits variables and register,,,

Sample.

name "calcBebo"

PUTC MACRO char

PUSH AX

MOV AL, char

MOV AH, 0Eh

INT 10h

POP AX

ENDM

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

org 100h

jmp start

; define variables:

msg0 db "note: calculator works with integer values only.",0Dh,0Ah,'$'

msg1 db 0Dh,0Ah, 0Dh,0Ah, 'enter first number: $'

msg2 db "enter the operator: + - * / : $"

msg3 db "enter second number: $"

msg4 db 0dh,0ah , 'the approximate result of my calculations is : $'

msg5 db 0dh,0ah ,'thank you for using the calculator! press any key... ', 0Dh,0Ah, '$'

err1 db "wrong operator!", 0Dh,0Ah , '$'

smth db " and something.... $"

; operator can be: '+','-','*','/' or 'q' to exit in the middle.

opr db '?'

; first and second number:

num1 dw ?

num2 dw ?

start:

mov dx, offset msg0

mov ah, 9

int 21h

lea dx, msg1

mov ah, 09h ; output string at ds:dx

int 21h

call scan_num

; store first number:

mov num1, cx

; new line:

putc 0Dh

putc 0Ah

lea dx, msg2

mov ah, 09h ; output string at ds:dx

int 21h

; get operator:

mov ah, 1 ; single char input to AL.

int 21h

mov opr, al

putc 0Dh

putc 0Ah

cmp opr, 'q' ; q - exit in the middle.

je exit

cmp opr, '*'

jb wrong_opr

cmp opr, '/'

ja wrong_opr

lea dx, msg3

mov ah, 09h

int 21h

call scan_num

mov num2, cx

lea dx, msg4

mov ah, 09h ; output string at ds:dx

int 21h

cmp opr, '+'

je do_plus

cmp opr, '-'

je do_minus

cmp opr, '*'

je do_mult

cmp opr, '/'

je do_div

wrong_opr:

lea dx, err1

mov ah, 09h ; output string at ds:dx

int 21h

exit:

lea dx, msg5

mov ah, 09h

int 21h

mov ah, 0

int 16h

ret ; return back to os.

do_plus:

mov ax, num1

add ax, num2

call print_num ; print ax value.

jmp exit

do_minus:

mov ax, num1

sub ax, num2

call print_num ; print ax value.

Please. Send me a new code with output.