SQLite Forum

Endianness help
I agree, because of the nature of instructions on the CPU, you won't be able to observe bit-endianness from the CPU itself. It would require probing it with a logic analyzer. 

Same for storage - there are no instructions that says: "Write 1 bit to the drive". However, there are instructions that write 1 byte, which is why byte-endianness matters in practice, but bit-endianness doesn't.