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/*************************************************************************
Lock-On hardware
*************************************************************************/
/* Calculated from CRT controller writes */
#define PIXEL_CLOCK (XTAL_21MHz / 3)
#define FRAMEBUFFER_CLOCK XTAL_10MHz
#define HBSTART 320
#define HBEND 0
#define HTOTAL 448
#define VBSTART 240
#define VBEND 0
#define VTOTAL 280
class lockon_state : public driver_device
{
public:
lockon_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_char_ram(*this, "char_ram"),
m_hud_ram(*this, "hud_ram"),
m_scene_ram(*this, "scene_ram"),
m_ground_ram(*this, "ground_ram"),
m_object_ram(*this, "object_ram"){ }
/* memory pointers */
required_shared_ptr<UINT16> m_char_ram;
required_shared_ptr<UINT16> m_hud_ram;
required_shared_ptr<UINT16> m_scene_ram;
required_shared_ptr<UINT16> m_ground_ram;
required_shared_ptr<UINT16> m_object_ram;
/* video-related */
tilemap_t *m_tilemap;
UINT8 m_ground_ctrl;
UINT16 m_scroll_h;
UINT16 m_scroll_v;
bitmap_ind16 *m_front_buffer;
bitmap_ind16 *m_back_buffer;
emu_timer *m_bufend_timer;
emu_timer *m_cursor_timer;
/* Rotation Control */
UINT16 m_xsal;
UINT16 m_x0ll;
UINT16 m_dx0ll;
UINT16 m_dxll;
UINT16 m_ysal;
UINT16 m_y0ll;
UINT16 m_dy0ll;
UINT16 m_dyll;
/* Object palette RAM control */
UINT32 m_iden;
UINT8 *m_obj_pal_ram;
UINT32 m_obj_pal_latch;
UINT32 m_obj_pal_addr;
/* misc */
UINT8 m_ctrl_reg;
UINT32 m_main_inten;
/* devices */
cpu_device *m_maincpu;
cpu_device *m_audiocpu;
device_t *m_ground;
device_t *m_object;
device_t *m_f2203_1l;
device_t *m_f2203_2l;
device_t *m_f2203_3l;
device_t *m_f2203_1r;
device_t *m_f2203_2r;
device_t *m_f2203_3r;
DECLARE_READ16_MEMBER(lockon_crtc_r);
DECLARE_WRITE16_MEMBER(lockon_crtc_w);
DECLARE_WRITE16_MEMBER(lockon_char_w);
DECLARE_WRITE16_MEMBER(lockon_scene_h_scr_w);
DECLARE_WRITE16_MEMBER(lockon_scene_v_scr_w);
DECLARE_WRITE16_MEMBER(lockon_ground_ctrl_w);
DECLARE_WRITE16_MEMBER(lockon_tza112_w);
DECLARE_READ16_MEMBER(lockon_obj_4000_r);
DECLARE_WRITE16_MEMBER(lockon_obj_4000_w);
DECLARE_WRITE16_MEMBER(lockon_fb_clut_w);
DECLARE_WRITE16_MEMBER(lockon_rotate_w);
DECLARE_WRITE16_MEMBER(adrst_w);
DECLARE_READ16_MEMBER(main_gnd_r);
DECLARE_WRITE16_MEMBER(main_gnd_w);
DECLARE_READ16_MEMBER(main_obj_r);
DECLARE_WRITE16_MEMBER(main_obj_w);
DECLARE_WRITE16_MEMBER(tst_w);
DECLARE_READ16_MEMBER(main_z80_r);
DECLARE_WRITE16_MEMBER(main_z80_w);
DECLARE_WRITE16_MEMBER(inten_w);
DECLARE_WRITE16_MEMBER(emres_w);
DECLARE_READ8_MEMBER(adc_r);
DECLARE_WRITE8_MEMBER(sound_vol);
DECLARE_WRITE8_MEMBER(ym2203_out_b);
TILE_GET_INFO_MEMBER(get_lockon_tile_info);
virtual void machine_start();
virtual void machine_reset();
virtual void video_start();
virtual void palette_init();
UINT32 screen_update_lockon(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void screen_eof_lockon(screen_device &screen, bool state);
TIMER_CALLBACK_MEMBER(cursor_callback);
TIMER_CALLBACK_MEMBER(bufend_callback);
};
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