/*************************************************************************** Taito Qix hardware driver by John Butler, Ed Mueller, Aaron Giles ***************************************************************************/ #include "video/mc6845.h" #include "machine/6821pia.h" #define MAIN_CLOCK_OSC 20000000 /* 20 MHz */ #define SLITHER_CLOCK_OSC 21300000 /* 21.3 MHz */ #define SOUND_CLOCK_OSC 7372800 /* 7.3728 MHz */ #define COIN_CLOCK_OSC 4000000 /* 4 MHz */ #define QIX_CHARACTER_CLOCK (20000000/2/16) #define NUM_PENS (0x100) class qix_state : public driver_device { public: qix_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) { } /* machine state */ UINT8 *m_68705_port_out; UINT8 *m_68705_ddr; UINT8 m_68705_port_in[3]; UINT8 m_coinctrl; /* video state */ UINT8 *m_videoram; UINT8 *m_videoram_address; UINT8 *m_videoram_mask; UINT8 *m_paletteram; UINT8 m_flip; UINT8 m_palette_bank; UINT8 m_leds; UINT8 *m_scanline_latch; pen_t m_pens[NUM_PENS]; }; /*----------- defined in machine/qix.c -----------*/ extern const pia6821_interface qix_pia_0_intf; extern const pia6821_interface qix_pia_1_intf; extern const pia6821_interface qix_pia_2_intf; extern const pia6821_interface qixmcu_pia_0_intf; extern const pia6821_interface qixmcu_pia_2_intf; extern const pia6821_interface slither_pia_1_intf; extern const pia6821_interface slither_pia_2_intf; MACHINE_START( qixmcu ); MACHINE_RESET( qix ); WRITE8_HANDLER( zookeep_bankswitch_w ); READ8_HANDLER( qix_data_firq_r ); READ8_HANDLER( qix_data_firq_ack_r ); WRITE8_HANDLER( qix_data_firq_w ); WRITE8_HANDLER( qix_data_firq_ack_w ); READ8_HANDLER( qix_video_firq_r ); READ8_HANDLER( qix_video_firq_ack_r ); WRITE8_HANDLER( qix_video_firq_w ); WRITE8_HANDLER( qix_video_firq_ack_w ); READ8_HANDLER( qix_68705_portA_r ); READ8_HANDLER( qix_68705_portB_r ); READ8_HANDLER( qix_68705_portC_r ); WRITE8_HANDLER( qix_68705_portA_w ); WRITE8_HANDLER( qix_68705_portB_w ); WRITE8_HANDLER( qix_68705_portC_w ); WRITE8_DEVICE_HANDLER( qix_pia_w ); WRITE_LINE_DEVICE_HANDLER( qix_vsync_changed ); /*----------- defined in video/qix.c -----------*/ MACHINE_CONFIG_EXTERN( qix_video ); MACHINE_CONFIG_EXTERN( zookeep_video ); MACHINE_CONFIG_EXTERN( slither_video ); WRITE8_DEVICE_HANDLER( qix_flip_screen_w ); WRITE8_HANDLER( qix_palettebank_w ); /*----------- defined in audio/qix.c -----------*/ MACHINE_CONFIG_EXTERN( qix_audio ); MACHINE_CONFIG_EXTERN( slither_audio );