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author | Luca Barbato <lu_zero@gentoo.org> | 2006-09-19 22:22:29 +0000 |
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committer | Luca Barbato <lu_zero@gentoo.org> | 2006-09-19 22:22:29 +0000 |
commit | 99aed7c8fc9db68a18816a98b84bf0c09a00cf1e (patch) | |
tree | c47cd59aadb4b5ecefd560f80b8240905de7f45e /libavcodec/ppc | |
parent | 39e1b5cf8e0ecaa0e7b8f3192d402ee361860e37 (diff) | |
download | ffmpeg-streaming-99aed7c8fc9db68a18816a98b84bf0c09a00cf1e.zip ffmpeg-streaming-99aed7c8fc9db68a18816a98b84bf0c09a00cf1e.tar.gz |
New single instruction math operation header
Originally committed as revision 6291 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ppc')
-rw-r--r-- | libavcodec/ppc/mathops.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libavcodec/ppc/mathops.h b/libavcodec/ppc/mathops.h new file mode 100644 index 0000000..acb0dbf --- /dev/null +++ b/libavcodec/ppc/mathops.h @@ -0,0 +1,31 @@ +/* + * simple math operations + * Copyright (c) 2001, 2002 Fabrice Bellard. + * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al + * + * This library 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 of the License, or (at your option) any later version. + * + * This library 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 this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#if defined(ARCH_POWERPC_405) +/* signed 16x16 -> 32 multiply add accumulate */ +# define MAC16(rt, ra, rb) \ + asm ("maclhw %0, %2, %3" : "=r" (rt) : "0" (rt), "r" (ra), "r" (rb)); + +/* signed 16x16 -> 32 multiply */ +# define MUL16(ra, rb) \ + ({ int __rt; + asm ("mullhw %0, %1, %2" : "=r" (__rt) : "r" (ra), "r" (rb)); + __rt; }) +#endif |