include/asm-mips64/div64.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  */
   6 #ifndef _ASM_DIV64_H
   7 #define _ASM_DIV64_H
   8
   9 /*
  10  * Don't use this one in new code
  11  */
  12 #define do_div64_32(res, high, low, base) ({ \
  13         unsigned int __quot, __mod; \
  14         unsigned long __div; \
  15         unsigned int __low, __high, __base; \
  16         \
  17         __high = (high); \
  18         __low = (low); \
  19         __div = __high; \
  20         __div = __div << 32 | __low; \
  21         __base = (base); \
  22         \
  23         __mod = __div % __base; \
  24         __div = __div / __base; \
  25         \
  26         __quot = __div; \
  27         (res) = __quot; \
  28         __mod; })
  29
  30 /*
  31  * Hey, we're already 64-bit, no
  32  * need to play games..
  33  */
  34 #define do_div(n, base) ({ \
  35         unsigned long __quot; \
  36         unsigned int __mod; \
  37         unsigned long __div; \
  38         unsigned int __base; \
  39         \
  40         __div = (n); \
  41         __base = (base); \
  42         \
  43         __mod = __div % __base; \
  44         __quot = __div / __base; \
  45         \
  46         (n) = __quot; \
  47         __mod; })
  48
  49 #endif /* _ASM_DIV64_H */