mirror of https://github.com/mpv-player/mpv
18 lines
350 B
C
18 lines
350 B
C
|
#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
|