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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) { }
/* memory pointers */
UINT16 *m_char_ram;
UINT16 *m_hud_ram;
UINT16 *m_scene_ram;
UINT16 *m_ground_ram;
UINT16 *m_object_ram;
size_t m_hudram_size;
size_t m_objectram_size;
size_t m_groundram_size;
/* video-related */
tilemap_t *m_tilemap;
UINT8 m_ground_ctrl;
UINT16 m_scroll_h;
UINT16 m_scroll_v;
bitmap_t *m_front_buffer;
bitmap_t *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 */
device_t *m_maincpu;
device_t *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;
};
/*----------- defined in video/lockon.c -----------*/
PALETTE_INIT( lockon );
VIDEO_START( lockon );
SCREEN_UPDATE( lockon );
SCREEN_EOF( lockon );
READ16_HANDLER( lockon_crtc_r );
WRITE16_HANDLER( lockon_crtc_w );
WRITE16_HANDLER( lockon_rotate_w );
WRITE16_HANDLER( lockon_fb_clut_w );
WRITE16_HANDLER( lockon_scene_h_scr_w );
WRITE16_HANDLER( lockon_scene_v_scr_w );
WRITE16_HANDLER( lockon_ground_ctrl_w );
WRITE16_HANDLER( lockon_char_w );
WRITE16_HANDLER( lockon_tza112_w );
READ16_HANDLER( lockon_obj_4000_r );
WRITE16_HANDLER( lockon_obj_4000_w );
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