;目的：用si和di实现将字符串'welcome to masm!'复制到它后面的数据区中
;编写：Tony
;语言：asm
;时间：2020.3.24
assume cs:code,ds:data
data segment
db 'welcome to masm!'
db '................'
data ends
code segment
start: mov ax,data
mov ds,ax
mov si,0
mov cx,8
s: mov ax,0[si]
mov 16[si],ax
add si,2
loop s
mov ax,4c00h
int 21h
code ends
end start
