#ifndef GRAPHICS_DISPLAY_H
#define GRAPHICS_DISPLAY_H
/*
**      $Filename: graphics/display.h $
**      $Release: 2.04 Includes, V37.4 $
**      $Revision: 37.0 $
**      $Date: 91/01/07 $
**
**      include define file for display control registers
**
**      (C) Copyright 1985-1999 Amiga, Inc.
**          All Rights Reserved
*/

/* bplcon0 defines */
#define MODE_640    0x8000
#define PLNCNTMSK   0x7     /* how many bit planes? */
                                   /* 0 = none, 1->6 = 1->6, 7 = reserved */
#define PLNCNTSHFT  12             /* bits to shift for bplcon0 */
#define PF2PRI     0x40            /* bplcon2 bit */
#define COLORON     0x0200         /* disable color burst */
#define DBLPF      0x400
#define HOLDNMODIFY 0x800
#define INTERLACE   4               /* interlace mode for 400 */

/* bplcon1 defines */
#define PFA_FINE_SCROLL       0xF
#define PFB_FINE_SCROLL_SHIFT 4
#define PF_FINE_SCROLL_MASK   0xF

/* display window start and stop defines */
#define DIW_HORIZ_POS  0x7F       /* horizontal start/stop */
#define DIW_VRTCL_POS  0x1FF      /* vertical start/stop */
#define DIW_VRTCL_POS_SHIFT 7

/* Data fetch start/stop horizontal position */
#define DFTCH_MASK      0xFF

/* vposr bits */
#define VPOSRLOF        0x8000

#endif  /* GRAPHICS_DISPLAY_H */