3 * Copyright (C) 2007 Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
4 * Copyright (C) 2008 Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
5 * Copyright (C) 2009 Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 unsigned char getch ()
24 /*unsigned char *ret = 0;
26 asm volatile ("movl $2, %%eax;"
28 "movl %%eax, %0" : "=g" (ret) :: "%eax");*/
30 asm volatile ("movl $2, %%eax;"
31 "int $0x80;" ::: "%eax");
33 /* get return value */
34 unsigned char *memptr
= (unsigned char *) 0x905d;
35 unsigned char ret
= *memptr
;