diff options
| author | Stefan Reinauer <reinauer@chromium.org> | 2011-10-14 15:11:16 -0700 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2011-10-21 14:13:19 +0200 |
| commit | 9ea33e9318cfec6fca403b663618cbfbfa9e1e96 (patch) | |
| tree | 2dd6c4596b51317b0f7f2ac380825fe8f0846dfa /src/include/swab.h | |
| parent | b5381105325391553b17c6ec2455233fc27e73b8 (diff) | |
Add macros for 64bit byte order swapping
Change-Id: Ic31ccd41ba3e0af7046eafc29221810d4cd196c8
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/275
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/include/swab.h')
| -rw-r--r-- | src/include/swab.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/include/swab.h b/src/include/swab.h index 3a166863ec..c5e43709a6 100644 --- a/src/include/swab.h +++ b/src/include/swab.h @@ -30,4 +30,15 @@ (((unsigned int)(x) & (unsigned int)0x00ff0000UL) >> 8) | \ (((unsigned int)(x) & (unsigned int)0xff000000UL) >> 24) )) +#define swab64(x) \ + ((uint64_t)( \ + (((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) | \ + (((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) | \ + (((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \ + (((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) << 8) | \ + (((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \ + (((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \ + (((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \ + (((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56) )) + #endif /* _SWAB_H */ |