我的工作程序来计算卷数和显示输出的总和是偶数或奇数。我已经做了所有的事情，我得到了正确的输出。唯一的问题是，我的编程是不显示屏幕上的总和。它只是显示计算后的偶数或奇数。我还想在屏幕上显示总和输出。
下面是我的代码：

org 100h

section .data
    roll_num db '210405702'     ; Roll Number
    roll_len equ $ - roll_num   ; Length of roll number string
    sum_msg db 'The sum is: $'
    output_buffer db 16         ; Buffer to store the converted sum as a string
    result_msg db 'The received number is: $'

section .text
    global _start

_start:
    mov si, 0
    mov cx, 0
    
sum_loop:
    mov al, byte [roll_num + si] ; Changed 'a1' to 'al' (8-bit register)
    sub al, 48                  ; Subtract 48 to convert from ASCII to decimal
    add cx, ax                  ; Changed 'ax' to 'cx' for addition
    inc si                      ; Increment si by 1
    cmp si, roll_len            ; Compare si with roll_len
    jl sum_loop                 ; Jump back to sum_loop if si < roll_len
    
    mov ax, cx
    
    test al, 1                  ; Changed 'a1' to 'al' (8-bit register)
    jz even
    
    mov di, 1
    jmp print_result

even:
    mov di, 0
    
print_result:
    mov ah, 09h
    cmp di, 0
    je even_num
    mov dx, odd_msg             ; Display odd message
    int 21h
    jmp end_program

even_num:
    mov dx, even_msg            ; Display even message
    int 21h

    ; Call print_sum to display the total sum
    call print_sum
    
end_program:
    mov ah, 4Ch
    xor al, al
    int 21h

print_sum:
    mov ah, 09h
    mov dx, sum_msg             ; Display the sum message
    int 21h
    
    mov bx, 10                  ; Divide by 10 to convert sum to decimal string
    xor cx, cx                  ; Clear cx register
    mov si, output_buffer + 15  ; Start at the end of the buffer
    
convert_loop:
    xor dx, dx                  ; Clear dx register
    div bx                      ; Divide ax by 10
    add dl, 48                  ; Convert remainder to ASCII
    dec si                      ; Decrement si
    mov [si], dl                ; Store converted digit in buffer
    inc cx                      ; Increment digit count
    test ax, ax
    jnz convert_loop            ; Jump back to convert_loop if ax != 0
    
    mov dx, si                  ; Display the converted sum string
    add dx, 1                   ; Increment dx to skip the '$' at the end of the string
    mov ah, 09h
    int 21h

section .data
    odd_msg db 'The received number is odd', 0Dh, 0Ah, '$'
    even_msg db 'The received number is even', 0Dh, 0Ah, '$'

我试着写了一些代码。代码工作正常，但仍然没有显示输出的总和。