// license:BSD-3-Clause
// copyright-holders:Pierpaolo Prazzoli
#include "cpu/mcs48/mcs48.h"
#include "machine/timer.h"
#include "sound/dac.h"
#include "sound/sn76477.h"
#include "screen.h"
class n8080_state : public driver_device
{
public:
n8080_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_colorram(*this, "colorram"),
m_maincpu(*this, "maincpu"),
m_audiocpu(*this, "audiocpu"),
m_n8080_dac(*this, "n8080_dac"),
m_helifire_dac(*this, "helifire_dac"),
m_sn(*this, "snsnd"),
m_screen(*this, "screen"),
m_palette(*this, "palette") { }
/* memory pointers */
required_shared_ptr<uint8_t> m_videoram;
optional_shared_ptr<uint8_t> m_colorram; // for helifire
/* video-related */
emu_timer* m_cannon_timer;
int m_spacefev_red_screen;
int m_spacefev_red_cannon;
int m_sheriff_color_mode;
int m_sheriff_color_data;
int m_helifire_flash;
uint8_t m_helifire_LSFR[63];
unsigned m_helifire_mv;
unsigned m_helifire_sc; /* IC56 */
/* sound-related */
int m_n8080_hardware;
emu_timer* m_sound_timer[3];
int m_helifire_dac_phase;
double m_helifire_dac_volume;
double m_helifire_dac_timing;
uint16_t m_prev_sound_pins;
uint16_t m_curr_sound_pins;
int m_mono_flop[3];
uint8_t m_prev_snd_data;
/* other */
unsigned m_shift_data;
unsigned m_shift_bits;
int m_inte;
/* devices */
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_audiocpu;
optional_device<dac_bit_interface> m_n8080_dac;
optional_device<dac_8bit_r2r_device> m_helifire_dac;
optional_device<sn76477_device> m_sn;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
DECLARE_WRITE8_MEMBER(n8080_shift_bits_w);
DECLARE_WRITE8_MEMBER(n8080_shift_data_w);
DECLARE_READ8_MEMBER(n8080_shift_r);
DECLARE_WRITE8_MEMBER(n8080_video_control_w);
DECLARE_WRITE8_MEMBER(n8080_sound_1_w);
DECLARE_WRITE8_MEMBER(n8080_sound_2_w);
DECLARE_READ8_MEMBER(n8080_8035_p1_r);
DECLARE_READ_LINE_MEMBER(n8080_8035_t0_r);
DECLARE_READ_LINE_MEMBER(n8080_8035_t1_r);
DECLARE_READ_LINE_MEMBER(helifire_8035_t0_r);
DECLARE_READ_LINE_MEMBER(helifire_8035_t1_r);
DECLARE_READ8_MEMBER(helifire_8035_external_ram_r);
DECLARE_READ8_MEMBER(helifire_8035_p2_r);
DECLARE_WRITE8_MEMBER(n8080_dac_w);
DECLARE_WRITE8_MEMBER(helifire_sound_ctrl_w);
DECLARE_WRITE_LINE_MEMBER(n8080_inte_callback);
DECLARE_WRITE8_MEMBER(n8080_status_callback);
virtual void machine_start() override;
DECLARE_MACHINE_RESET(spacefev);
DECLARE_VIDEO_START(spacefev);
DECLARE_PALETTE_INIT(n8080);
DECLARE_MACHINE_RESET(sheriff);
DECLARE_VIDEO_START(sheriff);
DECLARE_MACHINE_RESET(helifire);
DECLARE_VIDEO_START(helifire);
DECLARE_PALETTE_INIT(helifire);
DECLARE_SOUND_START(spacefev);
DECLARE_SOUND_RESET(spacefev);
DECLARE_SOUND_START(sheriff);
DECLARE_SOUND_RESET(sheriff);
DECLARE_SOUND_START(helifire);
DECLARE_SOUND_RESET(helifire);
DECLARE_MACHINE_START(n8080);
DECLARE_MACHINE_RESET(n8080);
uint32_t screen_update_spacefev(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint32_t screen_update_sheriff(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint32_t screen_update_helifire(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_WRITE_LINE_MEMBER(screen_vblank_helifire);
TIMER_CALLBACK_MEMBER(spacefev_stop_red_cannon);
TIMER_DEVICE_CALLBACK_MEMBER(rst1_tick);
TIMER_DEVICE_CALLBACK_MEMBER(rst2_tick);
TIMER_DEVICE_CALLBACK_MEMBER(spacefev_vco_voltage_timer);
TIMER_DEVICE_CALLBACK_MEMBER(helifire_dac_volume_timer);
void spacefev_start_red_cannon( );
void helifire_next_line( );
void spacefev_update_SN76477_status();
void sheriff_update_SN76477_status();
void update_SN76477_status();
void start_mono_flop( int n, const attotime &expire );
void stop_mono_flop( int n );
TIMER_CALLBACK_MEMBER( stop_mono_flop_callback );
void spacefev_sound_pins_changed();
void sheriff_sound_pins_changed();
void helifire_sound_pins_changed();
void sound_pins_changed();
void delayed_sound_1( int data );
TIMER_CALLBACK_MEMBER( delayed_sound_1_callback );
void delayed_sound_2( int data );
TIMER_CALLBACK_MEMBER( delayed_sound_2_callback );
void sheriff(machine_config &config);
void sheriff_sound(machine_config &config);
void westgun2(machine_config &config);
void helifire(machine_config &config);
void helifire_sound(machine_config &config);
void spacefev(machine_config &config);
void spacefev_sound(machine_config &config);
void helifire_main_cpu_map(address_map &map);
void helifire_sound_io_map(address_map &map);
void main_cpu_map(address_map &map);
void main_io_map(address_map &map);
void n8080_sound_cpu_map(address_map &map);
};