判断回文字符串并中断显示8086汇编语言

下面是判断回文字符串并中断显示的8086汇编代码：

assume cs:code, ds:data

data segment
    str db 'level','$'
    buf db 10 dup(0)
    msg1 db 'The string is a palindrome.',13,10,'$'
    msg2 db 'The string is not a palindrome.',13,10,'$'
data ends

code segment
start:
    mov ax, data
    mov ds, ax

    ; 将字符串复制到缓冲区中
    mov si, offset str
    mov di, offset buf
    mov cx, 0
copy_loop:
    mov al, [si]
    cmp al, '$'
    je end_of_string
    mov [di], al
    add si, 1
    add di, 1
    add cx, 1
    jmp copy_loop

end_of_string:
    ; 检查字符串是否为回文字符串
    mov si, offset buf
    mov di, offset buf
    add di, cx-1
    mov bx, cx
    shr bx, 1
    mov cx, bx
check_loop:
    cmp si, di
    jge is_palindrome
    mov al, [si]
    mov ah, [di]
    cmp al, ah
    jne not_palindrome
    add si, 1
    sub di, 1
    jmp check_loop

is_palindrome:
    ; 是回文字符串
    lea dx, msg1
    mov ah, 9
    int 21h
    jmp end_program

not_palindrome:
    ; 不是回文字符串
    lea dx, msg2
    mov ah, 9
    int 21h
    jmp end_program

end_program:
    mov ah, 4ch
    int 21h

code ends
end start

在这段代码中，我们首先将字符串复制到缓冲区中，然