int sid_sound_machine_init(sound_t *psid, int speed, int cycles_per_sec) { return sid_engine.init(psid, speed, cycles_per_sec, 1000); }
int sid_sound_machine_init_vbr(sound_t *psid, int speed, int cycles_per_sec, int factor) { return sid_engine.init(psid, speed * factor / 1000, cycles_per_sec, factor); }