Assembly Program Question?

.MODEL SMALL
        .586                  ;Allows Pentium instructions, must come after .MODEL
        
        .STACK 100h
        
        .DATA
zero    DW    0
time    DW    0C8h            ;Hexadecimal value equal to 200 in Decimal
word1   DB    ' Minutes.', 13, 10, '$'
word2   DB    ' hours ', 13, 10, '$'
word3   DB    ' minutes.', 13, 10, '$'
word4   DB    'Equals.', 13, 10, '$'      
        .CODE
main PROC
        mov   ax, @data       ;Initialize
        mov   ds, ax          ; segment registers
        
        mov   ax, zero        ;Clear the Register
       
        mov   ax, time        ;Assign the hex C8 into register
        call  decimal         ;Convert hex C8 into decimal 200. Display decimal.
        
        mov   dx, OFFSET word1  ;Display the word 'Minutes' after the decimal value       
        mov   ah, 9             ; using function 09h
        int   21h             ; of interrupt 21h
        
        mov   dx, OFFSET word4  ;Display the word 'Equals'      
        mov   ah, 9             ; using function 09h
        int   21h             ; of interrupt 21h
        mov   ax, time
        call  decimal
                
        mov   ax, 4C00h       ;end
        int   21h             ;  processing
   
decimal proc
        mov    bx, 10d        ;Division Factor
        mov    cx, 00d        ;Number of decimal digits encountered, so far

NonZero:
        mov    dx, 00d        ;The dx register will hold the division's remainder
        div    bx             ;Divide contents of ax by 10d (ax<-quotient, dx<-remainder)
        push   dx             ;Push the remainder onto the stack
        inc    cx             ;Encountered another decimal digit
        cmp    ax, 00d        ;Is the quotient zero?
        jne    NonZero        ;  No - Keep dividing ax by 10 until quotient is zero

DigitLoop:
        pop    dx             ;  Yes - Retrieve last digit from the stack
        add    dl, 30h        ;ASCII character to display
        mov    ah, 02h        ;Display ASCII character
        int    21h            ;  on screen
        loop   DigitLoop      ;Repeat until stack of pushed remainders is empty
        ret
decimal endp

main    ENDP

        END    main           ;Identifies where execution is to start