ffmpeg/libavutil/x86/intmath.h
Michael Niedermayer a6ff8514a9 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  wtv: Check the return value from gmtime
  x86: fft: convert sse inline asm to yasm
  x86: place some inline asm under #if HAVE_INLINE_ASM

Conflicts:
	libavcodec/x86/fft_sse.c
	libavformat/wtv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-25 16:55:31 +02:00

38 lines
1.1 KiB
C

/*
* Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_X86_INTMATH_H
#define AVUTIL_X86_INTMATH_H
#if HAVE_INLINE_ASM
#define FASTDIV(a,b) \
({\
int ret, dmy;\
__asm__ volatile(\
"mull %3"\
:"=d"(ret), "=a"(dmy)\
:"1"((unsigned int)(a)), "g"(ff_inverse[b])\
);\
ret;\
})
#endif
#endif /* AVUTIL_X86_INTMATH_H */