WRITE8_HANDLER( timeplt_sh_irqtrigger_w ); MACHINE_CONFIG_EXTERN( timeplt_sound ); MACHINE_CONFIG_EXTERN( locomotn_sound ); class timeplt_audio_device : public device_t, public device_sound_interface { public: timeplt_audio_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); ~timeplt_audio_device() { global_free(m_token); } // access to legacy token void *token() const { assert(m_token != NULL); return m_token; } protected: // device-level overrides virtual void device_config_complete(); virtual void device_start(); // sound stream update overrides virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); private: // internal state void *m_token; }; extern const device_type TIMEPLT_AUDIO;