/***************************************************************************** * * includes/svision.h * ****************************************************************************/ #ifndef SVISION_H_ #define SVISION_H_ struct svision_t { emu_timer *timer1; int timer_shot; }; struct svision_pet_t { int state; int on, clock, data; UINT8 input; emu_timer *timer; }; struct tvlink_t { UINT32 palette[4/*0x40?*/]; /* rgb8 */ int palette_on; }; class svision_sound_device; // defined below class svision_state : public driver_device { public: svision_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_maincpu(*this, "maincpu"), m_reg(*this, "reg"), m_videoram(*this, "videoram"), m_joy(*this, "JOY"), m_joy2(*this, "JOY2") { } svision_sound_device *m_sound; int *m_dma_finished; svision_t m_svision; svision_pet_t m_pet; tvlink_t m_tvlink; DECLARE_READ8_MEMBER(svision_r); DECLARE_WRITE8_MEMBER(svision_w); DECLARE_READ8_MEMBER(tvlink_r); DECLARE_WRITE8_MEMBER(tvlink_w); DECLARE_DRIVER_INIT(svisions); DECLARE_DRIVER_INIT(svision); virtual void machine_reset(); virtual void palette_init(); DECLARE_PALETTE_INIT(svisionp); DECLARE_PALETTE_INIT(svisionn); DECLARE_MACHINE_RESET(tvlink); UINT32 screen_update_svision(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); UINT32 screen_update_tvlink(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); INTERRUPT_GEN_MEMBER(svision_frame_int); TIMER_CALLBACK_MEMBER(svision_pet_timer); TIMER_CALLBACK_MEMBER(svision_timer); TIMER_DEVICE_CALLBACK_MEMBER(svision_pet_timer_dev); void svision_irq(); DECLARE_DEVICE_IMAGE_LOAD_MEMBER(svision_cart); protected: required_device m_maincpu; required_shared_ptr m_reg; required_shared_ptr m_videoram; required_ioport m_joy; optional_ioport m_joy2; memory_region *m_user1; memory_bank *m_bank1; memory_bank *m_bank2; }; /*----------- defined in drivers/svision.c -----------*/ void svision_irq( running_machine &machine ); /*----------- defined in audio/svision.c -----------*/ //************************************************************************** // TYPE DEFINITIONS //************************************************************************** enum SVISION_NOISE_Type { SVISION_NOISE_Type7Bit, SVISION_NOISE_Type14Bit }; struct SVISION_NOISE { SVISION_NOISE() : on(0), right(0), left(0), play(0), type(SVISION_NOISE_Type7Bit), state(0), volume(0), count(0), step(0.0), pos(0.0), value(0) { memset(reg, 0, sizeof(UINT8)*3); } UINT8 reg[3]; int on, right, left, play; SVISION_NOISE_Type type; int state; int volume; int count; double step, pos; int value; // currently simple random function }; struct SVISION_DMA { SVISION_DMA() : on(0), right(0), left(0), ca14to16(0), start(0), size(0), pos(0.0), step(0.0), finished(0) { memset(reg, 0, sizeof(UINT8)*5); } UINT8 reg[5]; int on, right, left; int ca14to16; int start,size; double pos, step; int finished; }; struct SVISION_CHANNEL { SVISION_CHANNEL() : on(0), waveform(0), volume(0), pos(0), size(0), count(0) { memset(reg, 0, sizeof(UINT8)*4); } UINT8 reg[4]; int on; int waveform, volume; int pos; int size; int count; }; // ======================> svision_sound_device class svision_sound_device : public device_t, public device_sound_interface { public: svision_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); ~svision_sound_device() { } protected: // device-level overrides 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); public: DECLARE_WRITE8_MEMBER( svision_sounddma_w ); DECLARE_WRITE8_MEMBER( svision_noise_w ); public: int *dma_finished(); void sound_decrement(); void soundport_w(int which, int offset, int data); private: sound_stream *m_mixer_channel; SVISION_DMA m_dma; SVISION_NOISE m_noise; SVISION_CHANNEL m_channel[2]; }; extern const device_type SVISION; #endif /* SVISION_H_ */