44 lines
1.9 KiB
C
44 lines
1.9 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Mupen64plus-rsp-hle - arithmetics.h *
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* Mupen64Plus homepage: https://mupen64plus.org/ *
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* Copyright (C) 2014 Bobby Smiles *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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 *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#ifndef ARITHMETICS_H
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#define ARITHMETICS_H
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#include <stdint.h>
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#include "common.h"
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static inline int16_t clamp_s16(int_fast32_t x)
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{
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x = (x < INT16_MIN) ? INT16_MIN: x;
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x = (x > INT16_MAX) ? INT16_MAX: x;
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return x;
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}
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static inline int32_t vmulf(int16_t x, int16_t y)
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{
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return (((int32_t)(x))*((int32_t)(y))+0x4000)>>15;
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}
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#endif
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