Question about GPL and definition of "source" (Score 1)

Does GPL allow the release, instead of the actual (original) source, an assembly-language version resulting from the disassembly of the compiled binaries? As long as one can build binaries for the end product via an assembler/compiler and linker, and those "sources", then it constitutes "source code", right? :-) And since that is "source code" that anybody with the right tools can create, there's really no reason for every commercial company to not release "source" for their products in this manner -- they can then borrow freely from GPL but still abide by it, technically speaking! What am I missing...