f2_index 151 sound/isa/gus/gus_volume.c unsigned short semitones, f1_index, f2_index, f1_power, f2_power; f2_index 166 sound/isa/gus/gus_volume.c f2_index = (semitones + 1) % 12; f2_index 170 sound/isa/gus/gus_volume.c f2 = log_table[f2_index] << f2_power;