| Christina Quast | 8be71e4 | 2014-12-02 13:06:01 +0100 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------------
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| 2 | * ATMEL Microcontroller Software Support
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| 3 | * ----------------------------------------------------------------------------
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| 4 | * Copyright (c) 2008, Atmel Corporation
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| 5 | *
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| 6 | * All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions are met:
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| 10 | *
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| 11 | * - Redistributions of source code must retain the above copyright notice,
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| 12 | * this list of conditions and the disclaimer below.
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| 13 | *
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| 14 | * Atmel's name may not be used to endorse or promote products derived from
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| 15 | * this software without specific prior written permission.
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| 16 | *
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| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | * ----------------------------------------------------------------------------
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| 28 | */
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| 29 |
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| 30 | /*------------------------------------------------------------------------------
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| 31 | * Headers
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| 32 | *------------------------------------------------------------------------------*/
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| 33 |
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| 34 | #include "board.h"
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| 35 |
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| 36 | /*------------------------------------------------------------------------------
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| 37 | * Exported functions
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| 38 | *------------------------------------------------------------------------------*/
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| 39 |
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| 40 | /**
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| 41 | * Returns the minimum value between two integers.
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| 42 | *
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| 43 | * \param a First integer to compare.
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| 44 | * \param b Second integer to compare.
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| 45 | */
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| 46 | extern uint32_t min( uint32_t dwA, uint32_t dwB )
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| 47 | {
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| 48 | if ( dwA < dwB )
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| 49 | {
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| 50 | return dwA ;
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| 51 | }
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| 52 | else
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| 53 | {
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| 54 | return dwB ;
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| 55 | }
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| 56 | }
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| 57 |
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| 58 | /*------------------------------------------------------------------------------
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| 59 | * Returns the absolute value of an integer.
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| 60 | *
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| 61 | * \param value Integer value.
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| 62 | *
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| 63 | * \note Do not call this function "abs", problem with gcc !
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| 64 | */
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| 65 | extern uint32_t absv( int32_t lValue )
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| 66 | {
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| 67 | if ( lValue < 0 )
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| 68 | {
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| 69 | return -lValue ;
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| 70 | }
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| 71 | else
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| 72 | {
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| 73 | return lValue ;
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| 74 | }
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| 75 | }
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| 76 |
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| 77 | /*------------------------------------------------------------------------------
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| 78 | * Computes and returns x power of y.
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| 79 | *
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| 80 | * \param x Value.
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| 81 | * \param y Power.
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| 82 | */
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| 83 | extern uint32_t power( uint32_t dwX, uint32_t dwY )
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| 84 | {
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| 85 | uint32_t dwResult = 1 ;
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| 86 |
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| 87 | while ( dwY > 0 )
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| 88 | {
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| 89 | dwResult *= dwX ;
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| 90 | dwY-- ;
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| 91 | }
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| 92 |
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| 93 | return dwResult ;
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| 94 | }
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| 95 |
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