Thanks for the suggestions, Kristian. I for some reason didn't notice that __builtin_bswap things.
Best regards. HF 23.01.2014 19:51, Kristian Nielsen wrote:
Kristian Nielsen <kniel...@knielsen-hq.org> writes:Do it like this: static inline ulonglong mi_uint6korr(const void *p) { uint32 a= *(uint32 *)p; uint16 b= *(uint16 *)(4+(char *)p); ulonglong v= ((ulonglong)a | ((ulonglong)b << 32)) << 16; asm ("bswapq %0" : "=r" (v) : "0" (v)); return v; }Note that GCC also has __builtin_bswap64() (and __builtin_bswap32()). They also generate bswap instruction, but would also work on other platforms... - Kristian.
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