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54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
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/*! \file fixedpt.h \brief Fixed-point math function library. */
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//*****************************************************************************
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//
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// File Name : 'fixedpt.h'
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// Title : Fixed-point math function library
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// Author : Pascal Stang - Copyright (C) 2003
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// Created : 2003.01.26
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// Revised : 2003.02.04
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// Version : 0.1
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// Target MCU : Atmel AVR Series
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// Editor Tabs : 4
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//
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// NOTE: This code is currently below version 1.0, and therefore is considered
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// to be lacking in some functionality or documentation, or may not be fully
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// tested. Nonetheless, you can expect most functions to work.
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//
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// This code is distributed under the GNU Public License
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// which can be found at http://www.gnu.org/licenses/gpl.txt
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//
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//*****************************************************************************
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#ifndef FIXEDPT_H
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#define FIXEDPT_H
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#include "global.h"
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// constants/macros/typdefs
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// functions
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//! fixedptInit() initializes fixed-point math function library
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// set the number of bits to use behind the point
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void fixedptInit(u08 fixedPtBits);
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//! convert integer to fixed-point number
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s32 fixedptConvertFromInt(s32 int_number);
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//! convert fixed-point number to integer
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s32 fixedptConvertToInt(s32 fp_number);
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//! add a and b (a+b) with fixed-point math
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s32 fixedptAdd(s32 a, s32 b);
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//! subtract a and b (a-b) with fixed-point math
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s32 fixedptSubtract(s32 a, s32 b);
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//! multiply a and b (a*b) with fixed-point math
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s32 fixedptMultiply(s32 a, s32 b);
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//! divide numer by denom (numer/denom) with fixed-point math
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s32 fixedptDivide(s32 numer, s32 denom);
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#endif
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