Reverse Engineering challenge #76.

Tags: ARM MIPS ARM64 X64 ASM L1 .

These 3 functions operates on fixed-point numbers. Try to find out, what does these functions do, and also precision.

• Optimizing Clang/LLVM 3.4
• Optimizing MSVC 2013 x64
• Optimizing Keil 6 (ARM Mode)
• Optimizing Keil 6 (Thumb Mode)
• Optimizing GCC 4.9 (ARM64)
• Optimizing GCC 4.4.5 (MIPS)

Code length varies significantly from compiler to compiler. This is optimizations, but which?

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