help in assembly code

i need the program to display the smaller of 2 numbers. it is done in assembly language. please help!

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include 'emu8086.inc'

org  100h ; set location counter to 100h

jmp CodeStart

DataStart:
    promptMsg db "enter a number> ", 0
    minMsg db "the smallest number is ", 0
    newline db 13, 10, 0
    num1 dw ?
    num2 dw ?

CodeStart:
   
    ; prompt user to enter in a number
    mov si, offset promptMsg
    call print_string
   
    ; read in the number into cx
    call scan_num
   
    ; move the number to a variable
    mov num1, cx
   
    ; advance cursor to the next line
    mov si, offset newline
    call print_string

    ; prompt user to enter in a number
    mov si, offset promptMsg
    call print_string
   
    ; read in the number into cx
    call scan_num
   
    ; move the number to a variable
    mov num2, cx
   
    ; advance cursor to the next line
    mov si, offset newline
    call print_string

    ; print min message
    mov si, offset minMsg
    call print_string

    mov ax, num1

    call print_num   
   
    EndLabel:
    ret
   
DEFINE_PRINT_STRING   
DEFINE_SCAN_NUM
DEFINE_PRINT_NUM
DEFINE_PRINT_NUM_UNS

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