/* * simple math operations * Copyright (c) 2001, 2002 Fabrice Bellard. * Copyright (c) 2006 Michael Niedermayer et al * * 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 FFMPEG_PPC_MATHOPS_H #define FFMPEG_PPC_MATHOPS_H #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 #endif /* FFMPEG_PPC_MATHOPS_H */