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| author | Sergei Poselenov <sposelenov@emcraft.com> | 2008-11-04 13:51:18 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-01-24 00:23:09 +0100 |
| commit | 3feb647f3fd0881382c7a29f4cf280b66473ae0a (patch) | |
| tree | 98c94301b02b76944dd2191ab2f32efdc86da3a9 /include/div64.h | |
| parent | 6dadc9195ad642cc662632f4d92f92d3d71e8bf2 (diff) | |
| download | u-boot-imx-3feb647f3fd0881382c7a29f4cf280b66473ae0a.zip u-boot-imx-3feb647f3fd0881382c7a29f4cf280b66473ae0a.tar.gz u-boot-imx-3feb647f3fd0881382c7a29f4cf280b66473ae0a.tar.bz2 | |
Add a do_div() wrapper macro, lldiv().
Add a do_div() wrapper, lldiv(). The new inline function doesn't modify
the dividend and returns the result of division, so it is useful
in complex expressions, i.e. "return(a/b)" -> "return(lldiv(a,b))"
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
Diffstat (limited to 'include/div64.h')
| -rw-r--r-- | include/div64.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/div64.h b/include/div64.h index c495aef..d833144 100644 --- a/include/div64.h +++ b/include/div64.h @@ -36,4 +36,14 @@ extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); __rem; \ }) +/* Wrapper for do_div(). Doesn't modify dividend and returns + * the result, not reminder. + */ +static inline uint64_t lldiv(uint64_t dividend, uint32_t divisor) +{ + uint64_t __res = dividend; + do_div(__res, divisor); + return(__res); +} + #endif /* _ASM_GENERIC_DIV64_H */ |