第九章实验九，一早上一下午的成果，非甲鱼老师的代码

decoder

运行结果

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[hide]assume ds:data,cs:code
data segment
db 'WELCOME TO MASM!'
db 02h,24h,71h
db 32 dup(0)
data ends

code segment
start:
mov ax,data
mov ds,ax
mov ax,0b87ch
mov es,ax
mov bx,0
mov si,0
mov di,0h
mov cx,10h
s:         xor ax,ax
mov al,[bx]
mov byte ptr [si+13h],al
mov dl,ds:[10h]
mov byte ptr [si+14h],dl
mov ax,word ptr ds:[si+13h]
mov es:[di],ax
mov dl,ds:[11h]
mov byte ptr [si+14h],dl
mov ax,word ptr ds:[si+13h]
mov es:[di+0a0h],ax
mov dl,ds:[12h]
mov byte ptr [si+14h],dl
mov ax,word ptr ds:[si+13h]
mov es:[di+140h],ax
inc bx
inc di
inc di
add si,2
loop s

mov ax,4c00h
int 21h
code ends
end start[/hide]

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