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代码如下:
assume cs:codesg,ds:datasg
datasg segment
db 'w','e','l','c','o','m','e','t','o','m','a','s','m','!'
db 02,24h,71h
datasg ends
codesg segment
start: mov ax,datasg
mov ds,ax
mov ax,0B800H
mov es,ax
mov bx,0
mov si,1500
mov di,0
mov cx,7
s0: mov al,[bx]
mov ah,[di+14]
mov es:[si],ax
inc bx
add si,2
loop s0
inc si
mov cx,2
s1: mov al,[bx]
mov ah,[di+15]
mov es:[si],ax
inc bx
add si,2
loop s1
inc si
mov cx,5
s2: mov al,[bx]
mov ah,[di+16]
mov es:[si],ax
inc bx
add si,2
loop s2
mov ax,4c00h
int 21h
codesg ends
end start
为何运行结果是:
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