	IFND	GRAPHICS_DISPLAY_I
GRAPHICS_DISPLAY_I	SET	1
**
**	$Filename: graphics/display.i $
**	$Release: 1.3 $
**
**	include define file for display control registers 
**
**	(C) Copyright 1985,1986,1987,1988 Commodore-Amiga, Inc.
**	    All Rights Reserved
**

* bplcon0 defines
MODE_640    equ	  $8000
PLNCNTMSK   equ	  $7		    * how many bit planes?
*				    * 0 = none, 1->6 = 1->6, 7 = reserved
PLNCNTSHFT  equ	  12		    * bits to shift for bplcon0
PF2PRI	    equ	  $40		    * bplcon2 bit
COLORON	    equ	  $0200		    * disable color burst
DBLPF	    equ	  $400
HOLDNMODIFY equ	  $800
INTERLACE   equ	  4		    * interlace mode for 400

* bplcon1 defines
PFA_FINE_SCROLL	      equ   $F
PFB_FINE_SCROLL_SHIFT equ   4
PF_FINE_SCROLL_MASK   equ   $F

* display window start and stop defines
DIW_HORIZ_POS	      equ   $7F	    * horizontal start/stop
DIW_VRTCL_POS	      equ   $1FF    * vertical start/stop
DIW_VRTCL_POS_SHIFT   equ   7

* Data fetch start/stop horizontal position
DFTCH_MASK	      equ   $FF

* vposr bits
VPOSRLOF	      equ   $8000

	ENDC	; GRAPHICS_DISPLAY_I
