blob: 406da616eecd69d9a9b2e05f20263b9681446edb [file] [log] [blame]
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#define __CRT__NO_INLINE
#include <windows.h>
LONG InterlockedDecrement(LONG volatile *Addend)
{
unsigned char c;
unsigned char s;
__asm__ __volatile__(
"lock ; subl $1,%0; sete %1 ; sets %2"
:"=m" (*Addend), "=qm" (c), "=qm" (s)
:"m" (*Addend) : "memory");
return (c != 0 ? 0 : (s != 0 ? -1 : 1));
}