Messages in this thread | | | Date | Fri, 14 Mar 2003 13:56:10 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Re: 2.5.63 accesses below %esp (was: Re: ntfs OOPS (2.5.63)) |
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On Fri, 14 Mar 2003, Olaf Titz wrote:
> > code is designed to be easily decoded forward, noone executes code going > > backwards. Finding out what starts at EIP is easy. > > I remember reading once in a magazine that there exists an > undocumented/illegal instruction in the x86 which causes the IP to run > backwards, similar to setting the D flag. > > Was an April 1st issue though ;-) > > Olaf
There was a whole operating system written upon this principle. I think it was called "retrograde", erm, "Redmond", yes, that's what it was, something out of Redmond, Washington, ASU ^M^M^M USA
Cheers, Dick Johnson Penguin : Linux version 2.4.20 on an i686 machine (797.90 BogoMips). Why is the government concerned about the lunatic fringe? Think about it.
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