xoreaxeaxeax/movfuscator on Hacker News

You can compute with less than that. (all links are to the same thing) https://github.com/xoreaxeaxeax/movfuscator https://m.youtube.com/watch?v=R7EEoWg6Ekk https://news.ycombinator.com/item?id=18991404

comment by nwallin · 2019-05-15 · in ZombieLoad: Cross Privilege-Boundary Data Leakage on Intel CPUs

…that only emits MOV instructions [0] [1]. His other talks are quite interesting, as well! [0]: https://github.com/xoreaxeaxeax/movfuscator [1]: https://www.youtube.com/watch?v=2VF_wPkiBJY

comment by xelxebar · 2019-04-24 · in A Complete Formal Semantics of x86-64 User-Level Instruction Set Architecture

All you need is `mov`: https://github.com/xoreaxeaxeax/movfuscator/ Including the obligatory port of doom: https://github.com/xoreaxeaxeax/movfuscator/tree/master/vali... Note: The mov-only DOOM renders approximately one frame every 7…

comment by stevekemp · 2019-04-17 · in Adventures in reverse engineering Broadcom NIC firmware

…one frame every 7 hours, so playing this version requires somewhat increased patience. https://github.com/xoreaxeaxeax/movfuscator/tree/master/vali...

comment by mbauman · 2019-01-24 · in Movfuscator – Single instruction C compiler

And an implementation of Doom at merely 7 hours per frame! https://github.com/xoreaxeaxeax/movfuscator/tree/master/vali...

comment by pjscott · 2018-11-10 · in How Many Computers Are in Your Computer?

It's not just a paper... there's a reference implementation! https://github.com/xoreaxeaxeax/movfuscator

comment by ohazi · 2018-11-10 · in How Many Computers Are in Your Computer?

…takes seconds now takes hours. ah, here it is - branchless doom (in the validation/doom directory - https://github.com/xoreaxeaxeax/movfuscator/tree/master/vali... ): > The mov-only DOOM renders approximately one frame every 7 hours, so…

comment by stefs · 2018-08-10 · in Christopher Domas: Hardware Backdoors in X86 CPUs

This is by the same badass who wrote a compiler that generates only MOV instructons [1] [1] https://github.com/xoreaxeaxeax/movfuscator

comment by basementcat · 2018-08-09 · in Christopher Domas: Hardware Backdoors in X86 CPUs

Come on, the movfuscator has to be the best x86 I've seen: https://github.com/xoreaxeaxeax/movfuscator

comment by frostirosti · 2018-04-27 · in Ask HN: What are some examples of beautiful x86 assembly code?

…can be constructed. An example of a compiler for an even more restricted environment might be https://github.com/xoreaxeaxeax/movfuscator Edit: in the same vein there's also https://esolangs.org/wiki/Higher_Subleq Further edit: The user…

comment by schoen · 2018-04-18 · in Design and Implementation of a 256-Core BrainFuck Computer [pdf]

…compiled with the M/o/Vfuscator[0] is immune to this as it does not use branch instructions. [0] https://github.com/xoreaxeaxeax/movfuscator

comment by Mister_Snuggles · 2018-04-09 · in BranchScope: A New Side-Channel Attack on Directional Branch Predictor

Another missing is the X86 mov instructor. https://github.com/xoreaxeaxeax/movfuscator

comment by xucheng · 2018-02-15 · in A collection of things that are Turing-complete by accident (2013)

Christopher Domas implemented this idea in his one instruction compiler, the M/o/Vfuscator: https://github.com/xoreaxeaxeax/movfuscator Here's a really nifty talk he gives about it: https://www.youtube.com/watch?v=R7EEoWg6Ekk

comment by xelxebar · 2018-01-28 · in Redundancy of x86 Machine Code (2009)

…essentially compile anything to c, after which you can just compile it with the movfuscator[1] 1: https://github.com/xoreaxeaxeax/movfuscator

comment by earenndil · 2018-01-09 · in What Spectre and Meltdown Mean for WebKit

…path, that straight path, that clean path that's wholly immune to those pesky branching bugs. 1: https://github.com/xoreaxeaxeax/movfuscator

comment by earenndil · 2018-01-06 · in AMD ships microcode update to disable some branch prediction

…can scramble the MOV instructions, truely making it a decompilation nightmare. 1. Movfuscator page https://github.com/xoreaxeaxeax/movfuscator 2. Derbycon 2015 video https://www.youtube.com/watch?v=R7EEoWg6Ekk

comment by DogestFogey · 2017-11-16 · in A Sampling of Anti-Decompilation Techniques

heh, by the same guy who made that compiler that translates C into only mov instructions: https://github.com/xoreaxeaxeax/movfuscator

comment by xk98qB · 2017-09-10 · in Breaking the x86 Instruction Set: how to find undocumented x86 instructions

Technically, x86(and probably others) are turing complete with just MOV: https://github.com/xoreaxeaxeax/movfuscator

comment by Vendan · 2017-09-02 · in “this code very fast” pull request to remove whitespace from linux kernel

Compiling C to assembly code that uses only one instruction, namely mov: https://github.com/xoreaxeaxeax/movfuscator

comment by aisofteng · 2017-06-25 · in Show HN: Simplexhc – Haskell to LLVM compiler (design phase)

…similar to the underlying mechanism used in the compiler that only used x86 mov instructions. https://github.com/xoreaxeaxeax/movfuscator

comment by monocasa · 2017-06-21 · in SIMD / GPU Friendly Branchless Binary Search

Curiosly the capability of the x86 MOV is such that you can compile C code to only MOV instructions: https://github.com/xoreaxeaxeax/movfuscator Inspired by this paper about Turing-completeness of MOV:…

comment by Erwin · 2017-05-01 · in How Many X86-64 Instructions Are There Anyway?

An amusing application of mov's turing completeness https://github.com/xoreaxeaxeax/movfuscator

comment by foota · 2017-02-04 · in The Gray-1, a homebrew CPU exclusively composed of memory

Yep, just in case: https://news.ycombinator.com/item?id=9751312 https://github.com/xoreaxeaxeax/movfuscator And the XOR post-processor: https://github.com/xoreaxeaxeax/movfuscator/blob/master/post...

comment by jaclaz · 2016-12-31 · in X86 Assembly Guide

See https://github.com/xoreaxeaxeax/movfuscator

comment by pjc50 · 2016-12-08 · in Intel x86 documentation has more pages than the 6502 has transistors

…minimal, just a state machine reading/writing state on a tape Repo includes a good set of slides: https://github.com/xoreaxeaxeax/movfuscator/blob/master/slid... Indirect memory accesses serve for conditional execution Here's the macro for…

comment by __s · 2016-08-27 · in Movfuscator – A single-instruction C compiler

Convoluted tricks? Certainly. There's a functioning mov-only compiler [1], though. [1] https://github.com/xoreaxeaxeax/movfuscator

comment by ehntoo · 2016-08-24 · in Does a compiler use all x86 instructions? (2010)

Here is a paper and a mov only compiler. http://www.cl.cam.ac.uk/~sd601/papers/mov.pdf , https://github.com/xoreaxeaxeax/movfuscator PS: Found these links on hn.algolia.com, the HN threads are: https://news.ycombinator.com/item?id=6309631…

comment by terminalcommand · 2016-08-24 · in Does a compiler use all x86 instructions? (2010)

Probably things like https://github.com/xoreaxeaxeax/movfuscator

comment by mdadm · 2016-08-24 · in Does a compiler use all x86 instructions? (2010)

paper: https://www.cl.cam.ac.uk/~sd601/papers/mov.pdf compiler implementing it: https://github.com/xoreaxeaxeax/movfuscator HN discussions of these links: https://news.ycombinator.com/item?id=6309631 (paper) and…

comment by detaro · 2016-08-24 · in Does a compiler use all x86 instructions? (2010)

https://github.com/xoreaxeaxeax/movfuscator

comment by misterdata · 2016-08-24 · in Does a compiler use all x86 instructions? (2010)

Also: https://github.com/xoreaxeaxeax/movfuscator (which makes x86 single-instruction)

comment by TazeTSchnitzel · 2016-06-25 · in An emulator for a single-instruction (NOR) CPU

…make this? A: I thought it would be funny Is the motivation of demovfuscator to be not funny? [1] https://github.com/xoreaxeaxeax/movfuscator#faq Edit: Not sure why the down vote. It was intended as a joke, if it means anything

comment by a_c · 2016-06-24 · in Demovfuscator

Related: an x86/x64 obfuscator that transforms a program to use only mov instructions https://github.com/xoreaxeaxeax/movfuscator

comment by praseodym · 2015-08-24 · in Instruction-less computation

I suggest taking a look at the slides, which show how much trickery is involved: https://github.com/xoreaxeaxeax/movfuscator/raw/master/slide...

comment by cautious_int · 2015-08-07 · in Movfuscator: A single-instruction C compiler