汇编实验8

1.分析一个奇怪的程序

assume cs:codesg
codesg segment
    mov ax,4c00h         
    int 21h              
start : mov ax,0
s:
    nop                  
    nop                  
    mov di,offset s      
    mov si,offset s2
    mov ax,cs:[si]
    mov cs:[di],ax 

s0:
    jmp short s
s1:
    mov ax,0
    int 21h
    mov ax,0       
s2:
    jmp short s1   
    nop

codesg ends
end start