5 ms·

I assume "flag" in this context means something akin to a command-line flag.

• socceroos 12y ago
  I assumed it was a single bit in a string of them that describes a message.
  • MattHeard 12y ago
    You're correct. Single bits representing boolean values are often called "flags".
• matteotom 12y ago
  Except it's probably a byte or less.
  • solarmist 12y ago
    For highly efficient messages I'll bet they did bit packing, so it was probably only a single bit, which is why they'd want to reuse it rather than completely change the message format.