aboutsummaryrefslogtreecommitdiff
path: root/arch/casiowin/monochromelib/src/display_vram.c
blob: 04bb6f73dcd03600a2f1e927f6edfd44bedf8406 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
/* ****************************************************************************
 * display_vram.c -- Update the screen content.
 * Copyright (C) 2011 Pierre "PierrotLL" Le Gall <legallpierre89@gmail.com>
 * Copyright (C) 2016-2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
 *
 * This file is part of the 'casiowin/monochromelib' module,
 * in libcarrot, an experimental modular libc project.
 *
 * This file is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * This file is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Lesser Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this file.  If not, see <http://www.gnu.org/licenses/>.
 * ************************************************************************* */
#include <monochrome.h>

void ML_display_vram()
{
	char *LCD_register_selector = (char*)0xB4000000, *LCD_data_register = (char*)0xB4010000, *vram;
	int i, j;
	vram = ML_vram_adress();
	for(i=0 ; i<64 ; i++)
	{
		*LCD_register_selector = 4;
		*LCD_data_register = i|192;
		*LCD_register_selector = 4;
		*LCD_data_register = 0;
		*LCD_register_selector = 7;
		for(j=0 ; j<16 ; j++) *LCD_data_register = *vram++;
	}
}