decompile-dump

Is this decompiler output accurate? I'm suspicious because proc12 [¹] looks like memcpy, except it's advancing a byte at a time and copying an int at a time: *(int*)local6 = *(int*)local5; local5++; local6++; Either the memcpy code is strangely broken, or the decompiler is putting int * where it means char *. [¹] See full code at https://github.com/Laurelai/decompile-dump/blob/master/outpu... and same for proc20: https://github.com/Laurelai/decompile-dump/blob/master/outpu...

https://github.com/Laurelai/decompile-dump/blob/master/outpu... "WARNING: CHLLCode::appendTypeIdent: declaring type void as int for param2" http://www.google.com/codesearch?as_q=WARNING%3A+CHLLCode%3A... http://boomerang.sf.net/ is clearly what was used.

Thanks for the link! You were correct, the quality is noticeably better: https://github.com/Laurelai/decompile-dump/blob/master/outpu... vs http://img715.imageshack.us/img715/1051/hexraysstx.png

This looks like the output of HexRays [1], which is the best C decompiler I've seen. Defining some structures and typing the variables would make it a lot more readable in some cases. I've used HexRays to make sense of C++ games several times, after investing enough time to define and use data types, the result looks [2] much better, but then again, that's unobfuscated and not optimized C++, not old-school "I know what I'm doing and I don't need the compiler second-guessing me" C. Unfortunately there's still a lot decompilers can't do, mostly compiler tricks (e.g. storing a pointer to the middle of a structure instead of its beginning, and using negative offsets to access other struct members [3] - this is usually obvious when looking at it, but HexRays can't make sense of it so it falls back to raw pointer math). [1] http://www.hex-rays.

A silly decompiler that doesn't even recognise for loop with a break (https://github.com/Laurelai/decompile-dump/blob/master/outpu...) That said... I wonder how useful would github be as a collaborative decompilation space - grab a file, annotate / simplify as much as possible, send pull request, repeat...