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I'm using the disassembler from go-ethereum repo which fails on about 20% of the bytecode from the blockchain with missing/unknown opcodes. The disassembler on Etherscan fails as well.

Is there an up-to-date disassembler with complete opcode tables that can be used? Am I doing something wrong?

Examples of failed disassembly -

  1. 0x52ecf69544784165101e76a682eeea642e72584d
  2. 0x4432979c7c6bdd19f9ef20787c4ac9cc9710667b
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  • It looks like whatever disassembler etherscan was using got fixed? If you click the "Switch To Opcodes View" button/link, it shows you a disassembly. – Jamie Hale Jun 22 '16 at 15:53
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I've written another disassembler to help me understand some of this stuff, and because I really wanted offsets beside the instructions. You can find it here.

https://github.com/jamiehale/evm_disasm

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  • 3
    Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – soc1c Jun 23 '16 at 6:42

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