#ifndef ucoolib_arch_arch_common_arm_hh #define ucoolib_arch_arch_common_arm_hh // ucoolib - Microcontroller object oriented library. {{{ // // Copyright (C) 2013 Nicolas Schodet // // APBTeam: // Web: http://apbteam.org/ // Email: team AT apbteam DOT org // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program 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 General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // }}} namespace ucoo { /// Type used to save irq state. typedef unsigned int irq_flags_t; static inline irq_flags_t irq_lock (void) { irq_flags_t flags; __asm__ __volatile__ ("mrs %0, PRIMASK\n\t" "cpsid i" : "=r" (flags) : : "memory", "cc"); return flags; } inline void irq_restore (irq_flags_t flags) { __asm__ __volatile__ ("msr PRIMASK, %0" : : "r" (flags) : "memory", "cc"); } } // namespace ucoo #endif // ucoolib_arch_arch_common_arm_hh