最古老的 Hello World!

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text
复制代码
assume cs:code, ds:data, ss:stack

data segment
    db 'Hello World!'
data ends

stack segment
    dw 8 dup(0)
stack ends

code segment
    start:
    mov cx, 12
    push cx
    mov dx, 00000010b
    push dx


    mov ax, data
    mov ds, ax

    mov ax, 0b800h
    mov es, ax

    mov si, 0h
    mov di, 0h
    pop dx
    pop cx
    mov ax, 0h
    s:
    mov al, [si]
    mov es:[di], ax
    mov es:[di + 1], dx

    inc si
    add di, 2h
    loop s

    mov ax, 4c00h
    int 21h
code ends

end start