mpv/memset.c

18 lines
350 B
C
Raw Normal View History

#include "config.h"
#ifdef USE_FASTMEMSET
#if defined(HAVE_SSE) || defined(HAVE_SSE2)
/* (C) 2001 Csabai Csaba <csibi@diablo.ovinet.hu> */
inline void *fast_memset(void *ptr, long val, long num)
{
__asm__ __volatile__(
"cmpxchg8 (%2)"
: "=a" (val), "=d" (num)
: "r" (ptr), "0" (val), "1" (num)
:"memory");
return(ptr);
}
#endif
#endif