lunaix-os/arch/aarch64/includes/asm/bits.h

   1 #ifndef __LUNAIX_ARCH_BITS_H
   2 #define __LUNAIX_ARCH_BITS_H
   3
   4 #include <asm-generic/bits.h>
   5
   6 #ifndef __ASM__
   7 #undef _BITS_EXTRACT
   8 #undef _BITS_INSERT
   9
  10 #define _BITS_EXTRACT(from, h, l)       \
  11         ({                              \
  12             unsigned long _r;           \
  13             asm ("ubfm %0, %1, %2, %3"  \
  14                  : "=r"(_r)             \
  15                  : "r"(from),           \
  16                    "i"(l),"i"(h));      \
  17             _r;                         \
  18         })
  19
  20 #define _BITS_INSERT(to, from, h, l)    \
  21         ({                              \
  22             unsigned long _r = to;      \
  23             asm ("bfi %0, %1, %2, %3"   \
  24                  : "=r"(_r)             \
  25                  : "r"(from),           \
  26                    "i"(l),              \
  27                    "i"(h - l + 1));     \
  28             _r;                         \
  29         })
  30
  31 #endif
  32 #endif /* __LUNAIX_ARCH_BITS_H */