the.com/decompiling
reading a cake and trying to hand someone back the recipe.
means taking compiled machine code and reverse-engineering it into higher-level source code you can actually read.
from emerged alongside compilers themselves in the 1960s-70s once people realized the translation from source to machine code, if messy and lossy, might be run backward for analysis, recovery, or piracy.
lossy processcomments, variable names, structure are gone forever
legal gray zoneoften allowed for interoperability, banned by many EULAs
not compiling reversedproduces plausible source, not the original
for instance
ghidra — nsa released its decompiler tool publicly in 2019
ida pro — industry standard since 1991, used in malware analysis
nintendo game leaks — decompiled n64 titles like mario 64 fully reconstructed by 2020
wine project — built windows api compatibility partly via reverse engineering, not raw decompiling