F_FULL A compressed frame with complete frame data.
int
F_APPEND A compressed frame where locals are the same as the locals in the previous frame, except that additional 1-3 locals are defined, and with an empty stack.
int
F_CHOP A compressed frame where locals are the same as the locals in the previous frame, except that the last 1-3 locals are absent and with an empty stack.
int
F_SAME A compressed frame with exactly the same locals as the previous frame and with an empty stack.
int
F_SAME1 A compressed frame with exactly the same locals as the previous frame and with a single value on the stack.