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author | H. Peter Anvin <hpa@zytor.com> | 2009-02-17 20:17:17 -0800 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2009-02-17 20:17:17 -0800 |
commit | d0c6656a62113b913948361779d6298fe76f6e61 (patch) | |
tree | efa2541a1abae4760717c6db421ea818114ab6f7 /gpxe/src/include/byteswap.h | |
parent | 85b92a462dab7ce36c48614ea18314f8fc83ca9c (diff) | |
download | syslinux-d0c6656a62113b913948361779d6298fe76f6e61.tar.gz |
Update gPXE to version 0.9.6+ 277b84c6e7d49f3cf01c855007f591de8c7cb75f
Update gPXE to version 0.9.6+, from commit
277b84c6e7d49f3cf01c855007f591de8c7cb75f in the main gPXE repository.
The only differences is src/config/general.h which has a few protocols
added, and src/arch/i386/prefix/boot1a.S which was called boot1a.s in
the upstream repository.
Diffstat (limited to 'gpxe/src/include/byteswap.h')
-rw-r--r-- | gpxe/src/include/byteswap.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gpxe/src/include/byteswap.h b/gpxe/src/include/byteswap.h index 72b5a01d..6c3ced25 100644 --- a/gpxe/src/include/byteswap.h +++ b/gpxe/src/include/byteswap.h @@ -4,6 +4,41 @@ #include "endian.h" #include "bits/byteswap.h" +#define __bswap_constant_16(x) \ + ((uint16_t)((((uint16_t)(x) & 0x00ff) << 8) | \ + (((uint16_t)(x) & 0xff00) >> 8))) + +#define __bswap_constant_32(x) \ + ((uint32_t)((((uint32_t)(x) & 0x000000ffU) << 24) | \ + (((uint32_t)(x) & 0x0000ff00U) << 8) | \ + (((uint32_t)(x) & 0x00ff0000U) >> 8) | \ + (((uint32_t)(x) & 0xff000000U) >> 24))) + +#define __bswap_constant_64(x) \ + ((uint64_t)((((uint64_t)(x) & 0x00000000000000ffULL) << 56) | \ + (((uint64_t)(x) & 0x000000000000ff00ULL) << 40) | \ + (((uint64_t)(x) & 0x0000000000ff0000ULL) << 24) | \ + (((uint64_t)(x) & 0x00000000ff000000ULL) << 8) | \ + (((uint64_t)(x) & 0x000000ff00000000ULL) >> 8) | \ + (((uint64_t)(x) & 0x0000ff0000000000ULL) >> 24) | \ + (((uint64_t)(x) & 0x00ff000000000000ULL) >> 40) | \ + (((uint64_t)(x) & 0xff00000000000000ULL) >> 56))) + +#define __bswap_16(x) \ + ((uint16_t)(__builtin_constant_p(x) ? \ + __bswap_constant_16(x) : \ + __bswap_variable_16(x))) + +#define __bswap_32(x) \ + ((uint32_t)(__builtin_constant_p(x) ? \ + __bswap_constant_32(x) : \ + __bswap_variable_32(x))) + +#define __bswap_64(x) \ + ((uint64_t)(__builtin_constant_p(x) ? \ + __bswap_constant_64(x) : \ + __bswap_variable_64(x))) + #if __BYTE_ORDER == __LITTLE_ENDIAN #include "little_bswap.h" #endif |