void sound_timer(fixed8_24 frequency_step, u32 channel);
void sound_reset_fifo(u32 channel);
void update_gbc_sound(u32 cpu_ticks);
-void init_sound();
+void init_sound(int need_reset);
void sound_write_mem_savestate(file_tag_type savestate_file);
void sound_read_savestate(file_tag_type savestate_file);