// license:??? // copyright-holders:??? /********************************************************************* a2alfam2.h Implementation of the ALF Apple Music II card and compatibles *********************************************************************/ #ifndef __A2BUS_ALFAM2__ #define __A2BUS_ALFAM2__ #include "emu.h" #include "a2bus.h" #include "sound/sn76496.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class a2bus_sn76489_device: public device_t, public device_a2bus_card_interface { public: // construction/destruction a2bus_sn76489_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source); // optional information overrides virtual machine_config_constructor device_mconfig_additions() const; required_device m_sn1; required_device m_sn2; required_device m_sn3; optional_device m_sn4; protected: virtual void device_start(); virtual void device_reset(); // overrides of standard a2bus slot functions virtual UINT8 read_c0nx(address_space &space, UINT8 offset); virtual void write_c0nx(address_space &space, UINT8 offset, UINT8 data); virtual bool take_c800(); private: UINT8 m_latch0, m_latch1, m_latch2, m_latch3; protected: bool m_has4thsn; }; class a2bus_alfam2_device : public a2bus_sn76489_device { public: a2bus_alfam2_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); }; class a2bus_aesms_device : public a2bus_sn76489_device { public: a2bus_aesms_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual machine_config_constructor device_mconfig_additions() const; }; // device type definition extern const device_type A2BUS_ALFAM2; extern const device_type A2BUS_AESMS; #endif /* __A2BUS_ALFAM2__ */