assume cs:code code segment main: mov ax,0020h mov ds,ax ;指定段地址0200h mov dx,0h mov cx,003fh s: mov [dx],dx inc dx loop s mov ax,4c00h int 21h code ends end main 原因:16 Bit CPU中,不能用DX间接寻址,必须用BX、BP、SI、DI 来源:https://www.cnblogs.com/chrysanthemum/p/11511369.html 标签 dx