musl-tcc/arch/m68k/atomic_arch.h
2022-03-20 16:48:53 +08:00

9 lines
185 B
C

#define a_cas a_cas
static inline int a_cas(volatile int *p, int t, int s)
{
__asm__ __volatile__ (
"cas.l %0, %2, (%1)"
: "+d"(t) : "a"(p), "d"(s) : "memory", "cc");
return t;
}