汇编语言的宏指令及子程序设计从键盘输入10个无符号十进制数，将其转换为二进制数并存放在NUM字节型变量中，找出其中的最大数，并在屏幕上显示出来

以下是汇编语言的宏指令及子程序设计，实现从键盘输入10个无符号十进制数，将其转换为二进制数并存放在NUM字节型变量中，找出其中的最大数，并在屏幕上显示出来：

.model small
.stack 100h

.data
NUM db 10 dup(0)
MAX db ?
MSG1 db 10, 13, 'Enter a number: $'
MSG2 db 10, 13, 'The maximum number is: $'

.code
main proc
    mov ax, @data
    mov ds, ax
    
    ; Input 10 decimal numbers and convert to binary
    mov cx, 10
    mov si, offset NUM
input_loop:
    mov ah, 09h
    lea dx, MSG1
    int 21h
    
    ; Read decimal number from keyboard
    mov ah, 01h
    int 21h
    
    ; Check if input is valid decimal digit
    cmp al, '0'
    jb input_loop
    cmp al, '9'
    ja input_loop
    
    ; Convert decimal digit to binary and store in NUM
    sub al, '0'
    mov bl, al
    mov bh, 0
    mov cl, 8
convert_loop:
    shr bl, 1
    rcl bh, 1
    adc bh, 0
    dec cl
    jnz convert_loop
    mov [si], bh
    inc si
    
    loop input_loop
    
    ; Find maximum number in NUM
    mov si, offset NUM
    mov al, [si]
    mov bl, [si+1]
    mov bh, 0
max_loop:
    cmp bx, ax
    jbe next_num
    mov al, bl
    mov ah, bh
next_num:
    add si, 1
    mov bl, [si]
    mov bh, 0
    loop max_loop
    
    ; Display maximum number on screen
    mov MAX, al
    mov ah, 09h
    lea dx, MSG2
    int 21h
    mov dl, MAX
    add dl, '0'
    mov ah, 02h
    int 21h
    
    ; Exit program
    mov ah, 4ch
    int 21h
main endp
end main