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38 lines
1.3 KiB
38 lines
1.3 KiB
/* |
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* simple math operations |
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* Copyright (c) 2001, 2002 Fabrice Bellard. |
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* Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> et al |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVCODEC_PPC_MATHOPS_H |
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#define AVCODEC_PPC_MATHOPS_H |
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#if defined(ARCH_POWERPC_405) |
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/* signed 16x16 -> 32 multiply add accumulate */ |
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# define MAC16(rt, ra, rb) \ |
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asm ("maclhw %0, %2, %3" : "=r" (rt) : "0" (rt), "r" (ra), "r" (rb)); |
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/* signed 16x16 -> 32 multiply */ |
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# define MUL16(ra, rb) \ |
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({ int __rt; |
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asm ("mullhw %0, %1, %2" : "=r" (__rt) : "r" (ra), "r" (rb)); |
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__rt; }) |
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#endif |
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#endif // AVCODEC_PPC_MATHOPS_H
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