主题:jmp指令的咨询,急。。。。
assume cs:code
code 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 (为什么执行到此处就直接跳到 mov ax,4c00h?)
s1:mov ax,0
int 21h
mov ax,0
s2: jmp short s1
nop
s2:jmp short s1
nop
code ends
end start
谢谢高手指点!!!
code 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 (为什么执行到此处就直接跳到 mov ax,4c00h?)
s1:mov ax,0
int 21h
mov ax,0
s2: jmp short s1
nop
s2:jmp short s1
nop
code ends
end start
谢谢高手指点!!!