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- assume cs:code
- code segment
- start:
- ;----将0号中断的程序地址设置为:0:200
- ;----将cs:d0处的长度为d0end-d0的数据拷贝到0:200处---
- mov ax,0
- mov ds,ax
- mov ds:[2],ax
- mov ax,200h
- mov ds:[0],ax
-
- mov ax,0
- mov es,ax
- mov di,200h
- mov ax,cs
- mov ds,ax
- mov ax,d0
- mov si,ax
- mov cx,offset d0end - offset d0
- cld
- rep movsb
-
- mov ax,4c00h
- int 21h
- ;----触发0号中断后,显示Welcome to masm!----
- d0:
- jmp d0start
- db "Welcome to masm!"
- d0start:
- mov ax,0b800h
- mov es,ax
- mov ax,0a0h*5
- ;mov bl,5
- ;mul bl
- add ax,48
- mov di,ax
- mov ax,cs
- mov ds,ax
- mov si,202h
-
- mov cx,10h
- s:
- mov al,ds:[si]
- mov es:[di],al
- inc di
- mov al,2
- mov es:[di],al
- inc si
- inc di
- loop s
-
- mov ax,4c00h
- int 21h
- d0end:
- nop
-
- code ends
- end start
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movsb 真的好用,省事啊 |
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