Capstone Disassembler Framework

• capstone

  1 5,294 5.3 C

  Discontinued Capstone disassembly/disassembler framework: Core (Arm, Arm64, BPF, EVM, M68K, M680X, MOS65xx, Mips, PPC, RISCV, Sparc, SystemZ, TMS320C64x, Web Assembly, X86, X86_64, XCore) + bindings. [Moved to: https://github.com/capstone-engine/capstone] (by aquynh)

  

• sandsifter

  15 4,826 0.0 Python

  The x86 processor fuzzer

Idea:

If any assembler/disassembler author/team out there wants to produce an assembler/disassembler which is authoritative (difficult to do on x86, because there are so many different possible combinations of instruction encoding, https://github.com/xoreaxeaxeax/sandsifter : "Typically, several million undocumented instructions on your processor will be found, but these generally fall into a small number of different groups.") -- then what they'd do is to create a third program -- which "pits" the output of Assembler A vs. Assembler B, Disassembler A vs. Disassembler B...

That is, between any two assemblers (for the same CPU architecture/instruction set), or any two disassemblers, where are the anomalies?

If we think about an assembler as a simple function, y=f(x), that is, I give it a string of ascii bytes as input (x), and I get a string (1..n) binary bytes as output (y),

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• mishegos

  6 219 8.2 C++

  A differential fuzzer for x86 decoders

  

It sounds like what you want is Mishegos [1], described here [2].

[1] https://github.com/trailofbits/mishegos

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