[Guido] > Food for thought: maybe we should have variable-encoding lengths for all > opcodes, rather than the current cumbersome scheme? Yes, but not for protocol 4 - time's running out fast for that. When we "only" had the XXX1, XXX2, and XXX4 opcodes, it was kinda silly, but after adding XXX8 flavors to all of those it's become unbearable.