;
; ** $VER: display.h 39.0 (21.8.91)
; ** Includes Release 40.15
; **
; ** include define file for display control registers
; **
; ** (C) Copyright 1985-1993 Commodore-Amiga, Inc.
; **     All Rights Reserved
;

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

;  bplcon1 defines
#PFA_FINE_SCROLL       = $F
#PFB_FINE_SCROLL_SHIFT = 4
#PF_FINE_SCROLL_MASK   = $F

;  display window start and stop defines
#DIW_HORIZ_POS = $7F    ;  horizontal start/stop
#DIW_VRTCL_POS = $1FF    ;  vertical start/stop
#DIW_VRTCL_POS_SHIFT = 7

;  Data fetch start/stop horizontal position
#DFTCH_MASK = $FF

;  vposr bits
#VPOSRLOF = $8000