Constant OPLL_SNAPSHOT_LEN 

pub const OPLL_SNAPSHOT_LEN: usize = _; // 1_293usize

Total serialized size of an OPLL snapshot, in bytes.

version(1) + chip_type(1) + adr(1) + reg(64) + test_flag(1)

• slot_key_status(4) + eg_counter(4) + pm_phase(4) + am_phase(4)
• lfo_am(1) + patch_number(9x4) + user patch pair(2x13)
• slot(18x62) + ch_out(14x2) + mix_out(2)