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| author | Michael Brown | 2007-09-16 18:36:40 +0200 |
|---|---|---|
| committer | Michael Brown | 2007-09-16 18:36:40 +0200 |
| commit | 6d15a193aa9e3e4129a885e7010d0d480e723bb8 (patch) | |
| tree | 67ca53696bf3c4cffd9ea1b11dd7ff3d5a4b51ea /src/core/bitops.c | |
| parent | Revert to dev_priv/owner_priv scheme, rather than container_of; it (diff) | |
| download | ipxe-6d15a193aa9e3e4129a885e7010d0d480e723bb8.tar.gz ipxe-6d15a193aa9e3e4129a885e7010d0d480e723bb8.tar.xz ipxe-6d15a193aa9e3e4129a885e7010d0d480e723bb8.zip | |
Add fls() for non-constant values.
Diffstat (limited to 'src/core/bitops.c')
| -rw-r--r-- | src/core/bitops.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/core/bitops.c b/src/core/bitops.c new file mode 100644 index 000000000..75d57bf99 --- /dev/null +++ b/src/core/bitops.c @@ -0,0 +1,10 @@ +#include <strings.h> + +int __flsl ( long x ) { + int r = 0; + + for ( r = 0 ; x ; r++ ) { + x >>= 1; + } + return r; +} |