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