nengel@2: /*
nengel@2:  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
nengel@2:  *
nengel@2:  * This file is part of FFmpeg.
nengel@2:  *
nengel@2:  * FFmpeg is free software; you can redistribute it and/or
nengel@2:  * modify it under the terms of the GNU Lesser General Public
nengel@2:  * License as published by the Free Software Foundation; either
nengel@2:  * version 2.1 of the License, or (at your option) any later version.
nengel@2:  *
nengel@2:  * FFmpeg is distributed in the hope that it will be useful,
nengel@2:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nengel@2:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
nengel@2:  * Lesser General Public License for more details.
nengel@2:  *
nengel@2:  * You should have received a copy of the GNU Lesser General Public
nengel@2:  * License along with FFmpeg; if not, write to the Free Software
nengel@2:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
nengel@2:  */
nengel@2: 
nengel@2: #ifndef AVUTIL_X86_TIMER_H
nengel@2: #define AVUTIL_X86_TIMER_H
nengel@2: 
nengel@2: #include <stdint.h>
nengel@2: 
nengel@2: #define AV_READ_TIME read_time
nengel@2: 
nengel@2: static inline uint64_t read_time(void)
nengel@2: {
nengel@2:     uint32_t a, d;
nengel@2:     __asm__ volatile("rdtsc" : "=a" (a), "=d" (d));
nengel@2:     return ((uint64_t)d << 32) + a;
nengel@2: }
nengel@2: 
nengel@2: #endif /* AVUTIL_X86_TIMER_H */