2006-12-10 22:50:00 +00:00
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2006 Jens Arnold
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*
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* Fixed point library for plugins
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*
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2008-06-28 18:10:04 +00:00
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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2006-12-10 22:50:00 +00:00
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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long fsincos(unsigned long phase, long *cos);
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2007-02-05 01:01:15 +00:00
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long fsqrt(long a, unsigned int fracbits);
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2007-07-31 04:59:03 +00:00
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long cos_int(int val);
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long sin_int(int val);
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2007-07-31 17:23:49 +00:00
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long flog(int x);
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2008-01-23 08:25:04 +00:00
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/* fast unsigned multiplication (16x16bit->32bit or 32x32bit->32bit,
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* whichever is faster for the architecture) */
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#ifdef CPU_ARM
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#define FMULU(a, b) ((uint32_t) (((uint32_t) (a)) * ((uint32_t) (b))))
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#else /* SH1, coldfire */
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#define FMULU(a, b) ((uint32_t) (((uint16_t) (a)) * ((uint16_t) (b))))
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#endif
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