1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/input.c	Sun Mar 04 04:04:25 2012 +0200
     1.3 @@ -0,0 +1,37 @@
     1.4 +/*
     1.5 +Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
     1.6 +
     1.7 +This file is part of libgba, a library for GameBoy Advance development.
     1.8 +
     1.9 +This program is free software; you can redistribute it and/or modify
    1.10 +it under the terms of the GNU General Public License as published by
    1.11 +the Free Software Foundation; either version 2 of the License, or
    1.12 +(at your option) any later version.
    1.13 +
    1.14 +This program is distributed in the hope that it will be useful,
    1.15 +but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.16 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.17 +GNU General Public License for more details.
    1.18 +
    1.19 +You should have received a copy of the GNU General Public License
    1.20 +along with this program; if not, write to the Free Software
    1.21 +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    1.22 +*/
    1.23 +
    1.24 +#include "input.h"
    1.25 +
    1.26 +volatile unsigned short *reg_key_state = (unsigned short*)0x4000130;
    1.27 +volatile unsigned short *reg_key_cntl = (unsigned short*)0x4000132;
    1.28 +
    1.29 +int get_key_state(int key) {
    1.30 +	return ~(*reg_key_state) & key;
    1.31 +}
    1.32 +
    1.33 +void enable_key_interrupts(int keys) {
    1.34 +	*reg_key_cntl |= (1 << 14) | keys;
    1.35 +}
    1.36 +
    1.37 +void disable_key_interrupts(int keys) {
    1.38 +	if(keys == KEY_ALL) keys |= (1 << 14);
    1.39 +	*reg_key_cntl ^= keys;
    1.40 +}