00001 /* ---------------------------------------------------------------------------- 00002 * SAM Software Package License 00003 * ---------------------------------------------------------------------------- 00004 * Copyright (c) 2012, Atmel Corporation 00005 * 00006 * All rights reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions are met: 00010 * 00011 * - Redistributions of source code must retain the above copyright notice, 00012 * this list of conditions and the disclaimer below. 00013 * 00014 * Atmel's name may not be used to endorse or promote products derived from 00015 * this software without specific prior written permission. 00016 * 00017 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR 00018 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00019 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE 00020 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, 00021 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00022 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 00023 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00024 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00025 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 00026 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00027 * ---------------------------------------------------------------------------- 00028 */ 00029 00030 /*------------------------------------------------------------------------------ 00031 * Headers 00032 *----------------------------------------------------------------------------*/ 00033 00034 #include "board.h" 00035 00036 /*------------------------------------------------------------------------------ 00037 * Exported functions 00038 *----------------------------------------------------------------------------*/ 00039 00040 /** 00041 * Returns the minimum value between two integers. 00042 * 00043 * \param a First integer to compare. 00044 * \param b Second integer to compare. 00045 */ 00046 extern uint32_t min( uint32_t dwA, uint32_t dwB ) 00047 { 00048 if ( dwA < dwB ) { 00049 return dwA ; 00050 } else { 00051 return dwB ; 00052 } 00053 } 00054 00055 /*------------------------------------------------------------------------------ 00056 * Returns the absolute value of an integer. 00057 * 00058 * \param value Integer value. 00059 * 00060 * \note Do not call this function "abs", problem with gcc ! 00061 */ 00062 extern uint32_t absv( int32_t lValue ) 00063 { 00064 if ( lValue < 0 ) { 00065 return -lValue ; 00066 } else { 00067 return lValue ; 00068 } 00069 } 00070 00071 /*------------------------------------------------------------------------------ 00072 * Computes and returns x power of y. 00073 * 00074 * \param x Value. 00075 * \param y Power. 00076 */ 00077 extern uint32_t power( uint32_t dwX, uint32_t dwY ) 00078 { 00079 uint32_t dwResult = 1 ; 00080 00081 while ( dwY > 0 ) { 00082 dwResult *= dwX ; 00083 dwY-- ; 00084 } 00085 return dwResult ; 00086 } 00087