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  1. /*
  2.  * Copyright (C) 2006 Josef Cejka
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup genarch
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_DIVISION_H_
  36. #define KERN_DIVISION_H_
  37.  
  38. /* 32bit integer division */
  39. int __divsi3(int a, int b);
  40.  
  41. /* 64bit integer division */
  42. long long __divdi3(long long a, long long b);
  43.  
  44. /* 32bit unsigned integer division */
  45. unsigned int __udivsi3(unsigned int a, unsigned int b);
  46.  
  47. /* 64bit unsigned integer division */
  48. unsigned long long __udivdi3(unsigned long long a, unsigned long long b);
  49.  
  50. /* 32bit remainder of the signed division */
  51. int __modsi3(int a, int b);
  52.  
  53. /* 64bit remainder of the signed division */
  54. long long __moddi3(long long a, long long b);
  55.  
  56. /* 32bit remainder of the unsigned division */
  57. unsigned int __umodsi3(unsigned int a, unsigned int b);
  58.  
  59. /* 64bit remainder of the unsigned division */
  60. unsigned long long __umoddi3(unsigned long long a, unsigned long long b);
  61.  
  62. unsigned long long __udivmoddi3(unsigned long long a, unsigned long long b, unsigned long long *c);
  63.  
  64. #endif
  65.  
  66. /** @}
  67.  */
  68.