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class nemesis_state : public driver_device
{
public:
nemesis_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_charram(*this, "charram"),
m_xscroll1(*this, "xscroll1"),
m_xscroll2(*this, "xscroll2"),
m_yscroll2(*this, "yscroll2"),
m_yscroll1(*this, "yscroll1"),
m_videoram1(*this, "videoram1"),
m_videoram2(*this, "videoram2"),
m_colorram1(*this, "colorram1"),
m_colorram2(*this, "colorram2"),
m_spriteram(*this, "spriteram"),
m_paletteram(*this, "paletteram"),
m_gx400_shared_ram(*this, "gx400_shared"){ }
/* memory pointers */
required_shared_ptr<UINT16> m_charram;
required_shared_ptr<UINT16> m_xscroll1;
required_shared_ptr<UINT16> m_xscroll2;
required_shared_ptr<UINT16> m_yscroll2;
required_shared_ptr<UINT16> m_yscroll1;
required_shared_ptr<UINT16> m_videoram1;
required_shared_ptr<UINT16> m_videoram2;
required_shared_ptr<UINT16> m_colorram1;
required_shared_ptr<UINT16> m_colorram2;
required_shared_ptr<UINT16> m_spriteram;
required_shared_ptr<UINT16> m_paletteram;
optional_shared_ptr<UINT8> m_gx400_shared_ram;
/* video-related */
tilemap_t *m_background;
tilemap_t *m_foreground;
int m_spriteram_words;
int m_tilemap_flip;
int m_flipscreen;
UINT8 m_irq_port_last;
UINT8 m_blank_tile[8*8];
/* misc */
int m_irq_on;
int m_irq1_on;
int m_irq2_on;
int m_irq4_on;
UINT16 m_selected_ip; /* Copied from WEC Le Mans 24 driver, explicity needed for Hyper Crash */
int m_gx400_irq1_cnt;
UINT8 m_frame_counter;
/* devices */
cpu_device *m_maincpu;
cpu_device *m_audiocpu;
device_t *m_vlm;
DECLARE_WRITE16_MEMBER(gx400_irq1_enable_word_w);
DECLARE_WRITE16_MEMBER(gx400_irq2_enable_word_w);
DECLARE_WRITE16_MEMBER(gx400_irq4_enable_word_w);
DECLARE_WRITE16_MEMBER(nemesis_irq_enable_word_w);
DECLARE_WRITE16_MEMBER(konamigt_irq_enable_word_w);
DECLARE_WRITE16_MEMBER(konamigt_irq2_enable_word_w);
DECLARE_READ16_MEMBER(gx400_sharedram_word_r);
DECLARE_WRITE16_MEMBER(gx400_sharedram_word_w);
DECLARE_READ16_MEMBER(konamigt_input_word_r);
DECLARE_WRITE16_MEMBER(selected_ip_word_w);
DECLARE_READ16_MEMBER(selected_ip_word_r);
DECLARE_WRITE16_MEMBER(nemesis_soundlatch_word_w);
DECLARE_READ8_MEMBER(wd_r);
DECLARE_WRITE16_MEMBER(nemesis_gfx_flipx_word_w);
DECLARE_WRITE16_MEMBER(nemesis_gfx_flipy_word_w);
DECLARE_WRITE16_MEMBER(salamand_control_port_word_w);
DECLARE_WRITE16_MEMBER(nemesis_palette_word_w);
DECLARE_WRITE16_MEMBER(salamander_palette_word_w);
DECLARE_WRITE16_MEMBER(nemesis_videoram1_word_w);
DECLARE_WRITE16_MEMBER(nemesis_videoram2_word_w);
DECLARE_WRITE16_MEMBER(nemesis_colorram1_word_w);
DECLARE_WRITE16_MEMBER(nemesis_colorram2_word_w);
DECLARE_WRITE16_MEMBER(nemesis_charram_word_w);
DECLARE_WRITE8_MEMBER(gx400_speech_start_w);
DECLARE_WRITE8_MEMBER(salamand_speech_start_w);
DECLARE_READ8_MEMBER(nemesis_portA_r);
DECLARE_WRITE8_MEMBER(city_sound_bank_w);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
TILE_GET_INFO_MEMBER(get_fg_tile_info);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
UINT32 screen_update_nemesis(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
};
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