我发现有三条指令
> iret: *** 作数大小16
> iretd: *** 作数大小32
> iretq: *** 作数大小为64
我无法区分它们,以及使用哪一个.
谢谢任何人的帮助!!
我有另外一个关于模拟iret的问题,你能看看吗?http://stackoverflow.com/questions/11756274/how-to-simulate-a-iret-on-linux-x86-64
解决方法 从这 link:IRET returns from an interrupt (harDWare or software) by means of
popPing IP (or EIP),CS,and the flags off the stack and then
continuing execution from the new CS:IP.IRETW pops IP,CS and the flags as 2 bytes each,taking 6 bytes off
the stack in total. IRETD pops EIP as 4 bytes,pops a further 4 bytes
of which the top two are discarded and the bottom two go into CS,and
pops the flags as 4 bytes as well,taking 12 bytes off the stack.IRET is a shorthand for either IRETW or IRETD,depending on the
default BITS setting at the time.
与IRETQ非常相似
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