6af23f246b438bb26fa6e7f3dacb02d729cfa142
[libav.git] / libavcodec / ppc / mathops.h
1 /*
2 * simple math operations
3 * Copyright (c) 2001, 2002 Fabrice Bellard.
4 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #if defined(ARCH_POWERPC_405)
24 /* signed 16x16 -> 32 multiply add accumulate */
25 # define MAC16(rt, ra, rb) \
26 asm ("maclhw %0, %2, %3" : "=r" (rt) : "0" (rt), "r" (ra), "r" (rb));
27
28 /* signed 16x16 -> 32 multiply */
29 # define MUL16(ra, rb) \
30 ({ int __rt;
31 asm ("mullhw %0, %1, %2" : "=r" (__rt) : "r" (ra), "r" (rb));
32 __rt; })
33 #endif