#pragma once #ifndef __YMF271_H__ #define __YMF271_H__ #include "devlegcy.h" struct ymf271_interface { devcb_read8 ext_read; /* external memory read */ devcb_write8 ext_write; /* external memory write */ void (*irq_callback)(device_t *device, int state); /* irq callback */ }; DECLARE_READ8_DEVICE_HANDLER( ymf271_r ); DECLARE_WRITE8_DEVICE_HANDLER( ymf271_w ); class ymf271_device : public device_t, public device_sound_interface { public: ymf271_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); ~ymf271_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(); virtual void device_reset(); // 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 YMF271; #endif /* __YMF271_H__ */