org 100h

jmp start

;    setting vars
num1 dw 1
num2 dw 1

start:
  
mov     cx, 20 ;    counter (for the Fibonacci function)
mov     ax, num1
;    print twice to get "1 1 " at the start of the run     

Fibonacci:
    mov     bx, num1
    add     bx, num2
    mov     dx, bx
    mov     bx, num1
    mov     num2, bx
    mov     bx, dx
    mov     num1, bx

    ;    this part is for printing ax you dont have to mov dx into ax...
    ;            dx = ax = current fibonacci number
    ;mov ax, dx
    ;    use print function!!

loop Fibonacci  ; loop for 20 times

mov ah, 0
int 16h
ret