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96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2008, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/*------------------------------------------------------------------------------
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* Headers
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*------------------------------------------------------------------------------*/
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#include "board.h"
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/*------------------------------------------------------------------------------
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* Exported functions
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*------------------------------------------------------------------------------*/
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/**
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* Returns the minimum value between two integers.
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*
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* \param a First integer to compare.
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* \param b Second integer to compare.
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*/
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extern uint32_t min( uint32_t dwA, uint32_t dwB )
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{
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if ( dwA < dwB )
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{
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return dwA ;
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}
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else
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{
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return dwB ;
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}
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}
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/*------------------------------------------------------------------------------
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* Returns the absolute value of an integer.
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*
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* \param value Integer value.
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*
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* \note Do not call this function "abs", problem with gcc !
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*/
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extern uint32_t absv( int32_t lValue )
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{
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if ( lValue < 0 )
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{
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return -lValue ;
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}
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else
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{
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return lValue ;
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}
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}
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/*------------------------------------------------------------------------------
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* Computes and returns x power of y.
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*
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* \param x Value.
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* \param y Power.
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*/
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extern uint32_t power( uint32_t dwX, uint32_t dwY )
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{
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uint32_t dwResult = 1 ;
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while ( dwY > 0 )
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{
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dwResult *= dwX ;
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dwY-- ;
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}
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return dwResult ;
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}
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