;Programmed by Billal BEGUERADJ
;www.begueradj.50megs.com
;beg.bill@yahoo.com

;the aim of the following program is to display a non signed decimal number
;that is stored in AX


.MODEL SMALL
.STACK
.DATA


.CODE

displayn PROC
;-------------------------------------------------------
;this procedure displays the number that is stored in AX
;-------------------------------------------------------
            push ax
            push dx
            add al,48    ;we must add 48 to our number since ASCII 0 is 48
            mov dl,al    ;the ASCII code of the number must be stocked into DL
            mov ah,2
            int 21h
            pop dx
            pop ax
            ret
displayn ENDP

displaywholenumber PROC
;-----------------------------------------------------------
;display the non signed decimal number that is stocked in AX
;-----------------------------------------------------------
          push AX
          push dx
          push cx
          mov bx,10           ;BX est le dénominateur
          mov cx,0            ;CX is our counter

          decompose:
              mov dx,0
              div bx          ;AX/BX = what remains = DX and quotient = AX
              push dx         ;stock what remains in the stack
              inc cx
              cmp ax,0        ;quotient = 0 ?
              jnz decompose   ;if not continue decomposition
             
          displ:
              pop ax           ;load a number from the stack
              call displayn    ;in order to display it
              loop displ       ;repeat displayin until CX = 0
              pop cx
              pop bx
              pop ax
              ret
displaywholenumber ENDP


main PROC
;-------------------------------------------
;the beginning of the main program
;-------------------------------------------
     MOV AX,@DATA
     MOV DS,AX

     MOV ax, 9999                  ;9999 is for instance the number to display
     call displaywholenumber
     mov ax,04c00h
     int 21h


main ENDP
END main