peter@521: /*
peter@521: This file is part of CanFestival, a library implementing CanOpen Stack.
peter@521: 
peter@521: Copyright (C): Edouard TISSERANT and Francis DUPIN
peter@521: ARM Port: Peter CHRISTEN
peter@521: 
peter@521: See COPYING file for copyrights details.
peter@521: 
peter@521: This library is free software; you can redistribute it and/or
peter@521: modify it under the terms of the GNU Lesser General Public
peter@521: License as published by the Free Software Foundation; either
peter@521: version 2.1 of the License, or (at your option) any later version.
peter@521: 
peter@521: This library is distributed in the hope that it will be useful,
peter@521: but WITHOUT ANY WARRANTY; without even the implied warranty of
peter@521: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
peter@521: Lesser General Public License for more details.
peter@521: 
peter@521: You should have received a copy of the GNU Lesser General Public
peter@521: License along with this library; if not, write to the Free Software
peter@521: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
peter@521: */
peter@521: 
peter@521: #ifndef _IO_MACRO
peter@521: #define _IO_MACRO
peter@521: 
peter@521: // Macros for set and clear bits in I/O registers
peter@521: #define setbit(address,bit) (address |= (1<<bit))
peter@521: #define clearbit(address,bit) (address &= ~(1<<bit))
peter@521: #define togglebit(address,bit) (address ^= (1<<bit))
peter@521: 
peter@521: // Macro for testing of a single bit in an I/O location
peter@521: #define checkbit(address,bit) (address & (1<<bit))
peter@521: 
peter@521: #endif