12 #ifndef __L4UTIL__INCLUDE__SPLITLOG2_H__
13 #define __L4UTIL__INCLUDE__SPLITLOG2_H__
15 #include <l4/sys/linkage.h>
64 if ((retval = handler(start, start + len - 1, len2)))
76 if (start_bits != -1 && len_bits > start_bits)
77 len_bits = start_bits;
bit manipulation functions
#define EXTERN_C_BEGIN
Start section with C types and functions.
#define EXTERN_C_END
End section with C types and functions.
unsigned long l4_addr_t
Address type.
@ L4_EINVAL
Invalid argument.
l4_addr_t l4util_splitlog2_size(l4_addr_t start, l4_addr_t end)
Return log2 base and size aligned length of a range.
long l4util_splitlog2_hdl(l4_addr_t start, l4_addr_t end, long(*handler)(l4_addr_t s, l4_addr_t e, int log2size))
Split a range into log2 base and size aligned chunks.
int l4util_bsf(l4_umword_t word)
Bit scan forward.
int l4util_bsr(l4_umword_t word)
Bit scan reverse.