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// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria
#ifndef MAME_INCLUDES_GALAGA_H
#define MAME_INCLUDES_GALAGA_H
#pragma once
#include "video/starfield_05xx.h"
#include "machine/74259.h"
#include "sound/discrete.h"
#include "sound/namco.h"
#include "sound/samples.h"
#include "emupal.h"
#include "screen.h"
#include "tilemap.h"
class galaga_state : public driver_device
{
public:
galaga_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_videoram(*this, "videoram")
, m_galaga_ram1(*this, "galaga_ram1")
, m_galaga_ram2(*this, "galaga_ram2")
, m_galaga_ram3(*this, "galaga_ram3")
, m_videolatch(*this, "videolatch")
, m_maincpu(*this, "maincpu")
, m_subcpu(*this, "sub")
, m_subcpu2(*this, "sub2")
, m_namco_sound(*this, "namco")
, m_gfxdecode(*this, "gfxdecode")
, m_screen(*this, "screen")
, m_palette(*this, "palette")
, m_leds(*this, "led%u", 0U)
, m_starfield(*this, "starfield")
, m_galaga_gfxbank(0)
, m_main_irq_mask(0)
, m_sub_irq_mask(0)
, m_sub2_nmi_mask(0)
{ }
uint8_t bosco_dsw_r(offs_t offset);
DECLARE_WRITE_LINE_MEMBER(flip_screen_w);
DECLARE_WRITE_LINE_MEMBER(irq1_clear_w);
DECLARE_WRITE_LINE_MEMBER(irq2_clear_w);
DECLARE_WRITE_LINE_MEMBER(nmion_w);
void galaga_videoram_w(offs_t offset, uint8_t data);
DECLARE_WRITE_LINE_MEMBER(gatsbee_bank_w);
void out(uint8_t data);
DECLARE_WRITE_LINE_MEMBER(lockout);
uint8_t namco_52xx_rom_r(offs_t offset);
uint8_t namco_52xx_si_r();
void init_galaga();
void init_gatsbee();
TILEMAP_MAPPER_MEMBER(tilemap_scan);
TILE_GET_INFO_MEMBER(get_tile_info);
void galaga_palette(palette_device &palette) const;
uint32_t screen_update_galaga(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
DECLARE_WRITE_LINE_MEMBER(screen_vblank_galaga);
DECLARE_WRITE_LINE_MEMBER(vblank_irq);
TIMER_CALLBACK_MEMBER(cpu3_interrupt_callback);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect );
uint16_t get_next_lfsr_state(uint16_t lfsr);
void draw_stars(bitmap_ind16 &bitmap, const rectangle &cliprect );
void galaga(machine_config &config);
void gatsbee(machine_config &config);
void galagab(machine_config &config);
void dzigzag_mem4(address_map &map);
void galaga_map(address_map &map);
void galaga_mem4(address_map &map);
void gatsbee_main_map(address_map &map);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
/* memory pointers, devices */
optional_shared_ptr<uint8_t> m_videoram;
optional_shared_ptr<uint8_t> m_galaga_ram1;
optional_shared_ptr<uint8_t> m_galaga_ram2;
optional_shared_ptr<uint8_t> m_galaga_ram3;
optional_device<ls259_device> m_videolatch; // not present on Xevious
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_subcpu;
required_device<cpu_device> m_subcpu2;
required_device<namco_device> m_namco_sound;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
output_finder<2> m_leds;
optional_device<starfield_05xx_device> m_starfield; // not present on battles, digdug, xevious
emu_timer *m_cpu3_interrupt_timer = nullptr;
uint32_t m_galaga_gfxbank; // used by gatsbee
/* shared */
tilemap_t *m_fg_tilemap = nullptr;
tilemap_t *m_bg_tilemap = nullptr;
uint8_t m_main_irq_mask;
uint8_t m_sub_irq_mask;
uint8_t m_sub2_nmi_mask;
};
DISCRETE_SOUND_EXTERN( galaga_discrete );
DISCRETE_SOUND_EXTERN( bosco_discrete );
#endif // MAME_INCLUDES_GALAGA_H
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