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| author | Patrick Williams <iawillia@us.ibm.com> | 2011-03-05 10:01:45 -0600 |
|---|---|---|
| committer | Patrick Williams <iawillia@us.ibm.com> | 2011-03-05 10:01:45 -0600 |
| commit | 706243ac48cf646d503a3f1ec9e6a28c916694bd (patch) | |
| tree | 5d583486a145a9646eccb9d3c4bce4dad45a2a84 /src/include/math.h | |
| parent | 5c20d316d21e231daee6455f0a78d5940d59cf23 (diff) | |
| download | blackbird-hostboot-706243ac48cf646d503a3f1ec9e6a28c916694bd.tar.gz blackbird-hostboot-706243ac48cf646d503a3f1ec9e6a28c916694bd.zip | |
Merge of PowerHAL project up to commit:
dd45c30bd53d8e6c123165b83842d08117558a3c
Diffstat (limited to 'src/include/math.h')
| -rw-r--r-- | src/include/math.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/include/math.h b/src/include/math.h new file mode 100644 index 000000000..eddb92f64 --- /dev/null +++ b/src/include/math.h @@ -0,0 +1,23 @@ +#include <stdint.h> +#include <builtins.h> + +#ifndef _MATH_H +#define _MATH_H + +#ifdef __cplusplus +extern "C" +{ +#endif + +ALWAYS_INLINE +static inline int64_t log2(uint64_t s) +{ + int64_t n = cntlzd(s); + return 63-n; +} + +#ifdef __cplusplus +}; +#endif + +#endif |
