| Server IP : 79.136.114.73 / Your IP : 13.59.22.238 Web Server : Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.29 OpenSSL/1.0.1f System : Linux b8009 3.13.0-170-generic #220-Ubuntu SMP Thu May 9 12:40:49 UTC 2019 x86_64 User : www-data ( 33) PHP Version : 5.5.9-1ubuntu4.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /lib/modules/3.13.0-170-generic/build/arch/cris/include/arch-v32/arch/ |
Upload File : |
#ifndef _ASM_CRIS_ARCH_BITOPS_H
#define _ASM_CRIS_ARCH_BITOPS_H
/*
* Helper functions for the core of the ff[sz] functions. They compute the
* number of leading zeroes of a bits-in-byte, byte-in-word and
* word-in-dword-swapped number. They differ in that the first function also
* inverts all bits in the input.
*/
static inline unsigned long
cris_swapnwbrlz(unsigned long w)
{
unsigned long res;
__asm__ __volatile__ ("swapnwbr %0\n\t"
"lz %0,%0"
: "=r" (res) : "0" (w));
return res;
}
static inline unsigned long
cris_swapwbrlz(unsigned long w)
{
unsigned long res;
__asm__ __volatile__ ("swapwbr %0\n\t"
"lz %0,%0"
: "=r" (res) : "0" (w));
return res;
}
/*
* Find First Zero in word. Undefined if no zero exist, so the caller should
* check against ~0 first.
*/
static inline unsigned long
ffz(unsigned long w)
{
return cris_swapnwbrlz(w);
}
/*
* Find First Set bit in word. Undefined if no 1 exist, so the caller
* should check against 0 first.
*/
static inline unsigned long
__ffs(unsigned long w)
{
return cris_swapnwbrlz(~w);
}
/*
* Find First Bit that is set.
*/
static inline unsigned long
kernel_ffs(unsigned long w)
{
return w ? cris_swapwbrlz (w) + 1 : 0;
}
#endif /* _ASM_CRIS_ARCH_BITOPS_H */