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-rw-r--r--include/asm-m32r/div64.h39
1 files changed, 1 insertions, 38 deletions
diff --git a/include/asm-m32r/div64.h b/include/asm-m32r/div64.h
index 417a51bd552d..6cd978cefb28 100644
--- a/include/asm-m32r/div64.h
+++ b/include/asm-m32r/div64.h
@@ -1,38 +1 @@
1#ifndef _ASM_M32R_DIV64 #include <asm-generic/div64.h>
2#define _ASM_M32R_DIV64
3
4/* $Id$ */
5
6/* unsigned long long division.
7 * Input:
8 * unsigned long long n
9 * unsigned long base
10 * Output:
11 * n = n / base;
12 * return value = n % base;
13 */
14#define do_div(n, base) \
15({ \
16 unsigned long _res, _high, _mid, _low; \
17 \
18 _low = (n) & 0xffffffffUL; \
19 _high = (n) >> 32; \
20 if (_high) { \
21 _mid = (_high % (unsigned long)(base)) << 16; \
22 _high = _high / (unsigned long)(base); \
23 _mid += _low >> 16; \
24 _low &= 0x0000ffffUL; \
25 _low += (_mid % (unsigned long)(base)) << 16; \
26 _mid = _mid / (unsigned long)(base); \
27 _res = _low % (unsigned long)(base); \
28 _low = _low / (unsigned long)(base); \
29 n = _low + ((long long)_mid << 16) + \
30 ((long long)_high << 32); \
31 } else { \
32 _res = _low % (unsigned long)(base); \
33 n = (_low / (unsigned long)(base)); \
34 } \
35 _res; \
36})
37
38#endif /* _ASM_M32R_DIV64 */