// license:BSD-3-Clause
// copyright-holders:Aaron Giles, Zsolt Vasvari
// thanks-to: John Butler, Ed Mueller
/***************************************************************************
Taito Qix hardware
***************************************************************************/
#include "cpu/m6809/m6809.h"
#include "cpu/m6805/m68705.h"
#include "machine/6821pia.h"
#include "sound/discrete.h"
#include "sound/sn76496.h"
#include "video/mc6845.h"
#include "screen.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)
class qix_state : public driver_device
{
public:
qix_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_videocpu(*this, "videocpu"),
m_mcu(*this, "mcu"),
m_crtc(*this, "vid_u18"),
m_pia0(*this, "pia0"),
m_pia1(*this, "pia1"),
m_pia2(*this, "pia2"),
m_sndpia0(*this, "sndpia0"),
m_sndpia1(*this, "sndpia1"),
m_sndpia2(*this, "sndpia2"),
m_sn1 (*this, "sn1"),
m_sn2 (*this, "sn2"),
m_discrete(*this, "discrete"),
m_paletteram(*this, "paletteram"),
m_videoram(*this, "videoram"),
m_videoram_address(*this, "videoram_addr"),
m_videoram_mask(*this, "videoram_mask"),
m_scanline_latch(*this, "scanline_latch"),
m_bank0(*this, "bank0"),
m_bank1(*this, "bank1"),
m_screen(*this, "screen") { }
/* devices */
required_device<m6809_base_device> m_maincpu;
optional_device<cpu_device> m_audiocpu;
required_device<m6809_base_device> m_videocpu;
optional_device<m68705p_device> m_mcu;
required_device<mc6845_device> m_crtc;
required_device<pia6821_device> m_pia0;
required_device<pia6821_device> m_pia1;
required_device<pia6821_device> m_pia2;
required_device<pia6821_device> m_sndpia0;
optional_device<pia6821_device> m_sndpia1;
optional_device<pia6821_device> m_sndpia2;
optional_device<sn76489_device> m_sn1;
optional_device<sn76489_device> m_sn2;
optional_device<discrete_device> m_discrete;
/* machine state */
uint8_t m_68705_portA_out;
uint8_t m_coinctrl;
/* video state */
required_shared_ptr<uint8_t> m_paletteram;
optional_shared_ptr<uint8_t> m_videoram;
required_shared_ptr<uint8_t> m_videoram_address;
optional_shared_ptr<uint8_t> m_videoram_mask;
required_shared_ptr<uint8_t> m_scanline_latch;
uint8_t m_flip;
uint8_t m_palette_bank;
uint8_t m_leds;
optional_memory_bank m_bank0;
optional_memory_bank m_bank1;
required_device<screen_device> m_screen;
pen_t m_pens[0x400];
DECLARE_WRITE8_MEMBER(zookeep_bankswitch_w);
DECLARE_WRITE8_MEMBER(qix_data_firq_w);
DECLARE_WRITE8_MEMBER(qix_data_firq_ack_w);
DECLARE_READ8_MEMBER(qix_data_firq_r);
DECLARE_READ8_MEMBER(qix_data_firq_ack_r);
DECLARE_WRITE8_MEMBER(qix_video_firq_w);
DECLARE_WRITE8_MEMBER(qix_video_firq_ack_w);
DECLARE_READ8_MEMBER(qix_video_firq_r);
DECLARE_READ8_MEMBER(qix_video_firq_ack_r);
DECLARE_READ8_MEMBER(qix_68705_portB_r);
DECLARE_READ8_MEMBER(qix_68705_portC_r);
DECLARE_WRITE8_MEMBER(qix_68705_portA_w);
DECLARE_WRITE8_MEMBER(qix_68705_portB_w);
DECLARE_READ8_MEMBER(qix_videoram_r);
DECLARE_WRITE8_MEMBER(qix_videoram_w);
DECLARE_WRITE8_MEMBER(slither_videoram_w);
DECLARE_READ8_MEMBER(qix_addresslatch_r);
DECLARE_WRITE8_MEMBER(qix_addresslatch_w);
DECLARE_WRITE8_MEMBER(slither_addresslatch_w);
DECLARE_WRITE8_MEMBER(qix_paletteram_w);
DECLARE_WRITE8_MEMBER(qix_palettebank_w);
void init_slither();
void init_zookeep();
void init_kram3();
virtual void machine_reset() override;
DECLARE_MACHINE_START(qixmcu);
DECLARE_VIDEO_START(qix);
TIMER_CALLBACK_MEMBER(pia_w_callback);
TIMER_CALLBACK_MEMBER(deferred_sndpia1_porta_w);
DECLARE_WRITE_LINE_MEMBER(qix_vsync_changed);
DECLARE_READ8_MEMBER(qixmcu_coin_r);
DECLARE_WRITE8_MEMBER(qixmcu_coin_w);
DECLARE_WRITE8_MEMBER(qixmcu_coinctrl_w);
DECLARE_WRITE8_MEMBER(qix_pia_w);
DECLARE_WRITE8_MEMBER(qix_coinctl_w);
DECLARE_WRITE8_MEMBER(slither_76489_0_w);
DECLARE_WRITE8_MEMBER(slither_76489_1_w);
DECLARE_READ8_MEMBER(slither_trak_lr_r);
DECLARE_READ8_MEMBER(slither_trak_ud_r);
DECLARE_WRITE_LINE_MEMBER(display_enable_changed);
DECLARE_WRITE_LINE_MEMBER(qix_flip_screen_w);
DECLARE_WRITE8_MEMBER(qix_dac_w);
DECLARE_WRITE8_MEMBER(qix_vol_w);
DECLARE_WRITE8_MEMBER(sndpia_2_warning_w);
DECLARE_WRITE8_MEMBER(sync_sndpia1_porta_w);
DECLARE_WRITE8_MEMBER(slither_coinctl_w);
DECLARE_WRITE_LINE_MEMBER(qix_pia_dint);
DECLARE_WRITE_LINE_MEMBER(qix_pia_sint);
MC6845_BEGIN_UPDATE(crtc_begin_update);
MC6845_UPDATE_ROW(crtc_update_row);
void set_pen(int offs);
int kram3_permut1(int idx, int value);
int kram3_permut2(int tbl_index, int idx, const uint8_t *xor_table);
int kram3_decrypt(int address, int value);
DECLARE_WRITE_LINE_MEMBER(kram3_lic_maincpu_changed);
DECLARE_WRITE_LINE_MEMBER(kram3_lic_videocpu_changed);
void mcu(machine_config &config);
void qix_base(machine_config &config);
void qix(machine_config &config);
void qix_video(machine_config &config);
void qix_audio(machine_config &config);
void zookeep(machine_config &config);
void zookeep_video(machine_config &config);
void kram3(machine_config &config);
void kram3_video(machine_config &config);
void slither(machine_config &config);
void slither_video(machine_config &config);
void slither_audio(machine_config &config);
void audio_map(address_map &map);
void kram3_main_map(address_map &map);
void kram3_video_map(address_map &map);
void main_map(address_map &map);
void qix_video_map(address_map &map);
void slither_video_map(address_map &map);
void zoo_main_map(address_map &map);
void zookeep_video_map(address_map &map);
};