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/*************************************************************************
Atari Crystal Castles hardware
*************************************************************************/
typedef struct _ccastles_state ccastles_state;
struct _ccastles_state
{
/* memory pointers */
UINT8 * videoram;
UINT8 * spriteram;
// UINT8 * nvram_stage; // currently this uses generic nvram handlers
// UINT8 * nvram; // currently this uses generic nvram handlers
/* video-related */
const UINT8 *syncprom;
const UINT8 *wpprom;
const UINT8 *priprom;
bitmap_t *spritebitmap;
double rweights[3], gweights[3], bweights[3];
UINT8 video_control[8];
UINT8 bitmode_addr[2];
UINT8 hscroll;
UINT8 vscroll;
/* misc */
int vblank_start;
int vblank_end;
emu_timer *irq_timer;
UINT8 irq_state;
UINT8 nvram_store[2];
/* devices */
const device_config *maincpu;
};
/*----------- defined in video/ccastles.c -----------*/
VIDEO_START( ccastles );
VIDEO_UPDATE( ccastles );
WRITE8_HANDLER( ccastles_hscroll_w );
WRITE8_HANDLER( ccastles_vscroll_w );
WRITE8_HANDLER( ccastles_video_control_w );
WRITE8_HANDLER( ccastles_paletteram_w );
WRITE8_HANDLER( ccastles_videoram_w );
READ8_HANDLER( ccastles_bitmode_r );
WRITE8_HANDLER( ccastles_bitmode_w );
WRITE8_HANDLER( ccastles_bitmode_addr_w );
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