/*
* Copyright (c) 1995 Leo Weppelman.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MACHINE_VIDEO_H
#define _MACHINE_VIDEO_H
/*
* Access to circuitry for video
*/
#define VIDEO ((struct video *)AD_VIDEO)
struct video {
volatile char vdb[14]; /* sparsely filled */
volatile u_short vd_line_wide; /* Falcon line word distance */
volatile u_short vd_vert_wrap; /* Falcon line length */
volatile char vd_fill0[45]; /* filler */
volatile u_short vd_st_rgb[16]; /* RGB for simultaneous colors (ST)*/
volatile u_char vd_st_res; /* ST resolution */
volatile char vd_fill1; /* filler */
volatile u_short vd_tt_res; /* TT-resolution mode */
volatile u_char vd_ste_hscroll; /* MEGA STe hor bitwise scroll */
volatile u_short vd_fal_res; /* Falcon resolution */
volatile char vd_fill2[23];
volatile u_short vd_h_hold_cnt; /* Falcon horizontal hold counter */
volatile u_short vd_h_hold_tim; /* Falcon horizontal hold timer */
volatile u_short vd_h_bord_beg; /* Falcon horizontal border begin */
volatile u_short vd_h_bord_end; /* Falcon horizontal border end */
volatile u_short vd_h_dis_beg; /* Falcon horizontal display begin */
volatile u_short vd_h_dis_end; /* Falcon horizontal display end */
volatile u_short vd_h_ss; /* Falcon horizontal SS */
volatile u_short vd_h_fs; /* Falcon horizontal FS */
volatile u_short vd_h_hh; /* Falcon horizontal HH */
volatile char vd_fill3[13];
volatile u_short vd_v_freq_cnt; /* Falcon vertical frequency count */
volatile u_short vd_v_freq_tim; /* Falcon vertical frequency timer */
volatile u_short vd_v_bord_beg; /* Falcon vertical border begin */
volatile u_short vd_v_bord_end; /* Falcon vertical border end */
volatile u_short vd_v_dis_beg; /* Falcon vertical display begin */
volatile u_short vd_v_dis_end; /* Falcon vertical display end */
volatile u_short vd_v_ss; /* Falcon vertical SS */
volatile char vd_fill4[17];
volatile u_short vd_fal_ctrl; /* Falcon video control */
volatile u_short vd_fal_mode; /* Falcon video mode */
volatile char vd_fill5[315];
volatile u_short vd_tt_rgb[256]; /* RGB for simultaneous TT colors */
volatile char vd_fill6[4608];
volatile u_long vd_fal_rgb[256];/* RGB for Falcon colors */
};
#define vd_ramh vdb[ 1] /* base address Video RAM, high byte */
#define vd_ramm vdb[ 3] /* base address Video RAM, mid byte */
#define vd_raml vdb[13] /* base address Video RAM, low byte */
#define vd_ptrh vdb[ 5] /* scan address Video RAM, high byte */
#define vd_ptrm vdb[ 7] /* scan address Video RAM, mid byte */
#define vd_ptrl vdb[ 9] /* scan address Video RAM, low byte */
#define vd_sync vdb[10] /* synchronization mode */
