-#ifndef _INTERNAA_ATOMIC_H
-#define _INTERNAA_ATOMIC_H
+#ifndef _INTERNAL_ATOMIC_H
+#define _INTERNAL_ATOMIC_H
#include <stdint.h>
static inline int a_ctz_64(uint64_t x)
{
- int r;
- __asm__( "bsf %1,%0 ; jnz 1f ; bsf %2,%0 ; addl $32,%0\n1:"
- : "=r"(r) : "r"((unsigned)x), "r"((unsigned)(x>>32)) );
+ long r;
+ __asm__( "bsf %1,%0" : "=r"(r) : "r"(x) );
return r;
}
+static inline int a_ctz_l(unsigned long x)
+{
+ long r;
+ __asm__( "bsf %1,%0" : "=r"(r) : "r"(x) );
+ return r;
+}
static inline void a_and_64(volatile uint64_t *p, uint64_t v)
{
- __asm__( "lock ; andl %1, (%0) ; lock ; andl %2, 4(%0)"
- : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) : "memory" );
+ __asm__( "lock ; andq %1, %0"
+ : "=m"(*(long *)p) : "r"(v) : "memory" );
}
static inline void a_or_64(volatile uint64_t *p, uint64_t v)
{
- __asm__( "lock ; orl %1, (%0) ; lock ; orl %2, 4(%0)"
- : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) : "memory" );
+ __asm__( "lock ; orq %1, %0"
+ : "=m"(*(long *)p) : "r"(v) : "memory" );
}
static inline void a_store_l(volatile void *p, long x)
{
- __asm__( "movl %1, %0" : "=m"(*(long *)p) : "r"(x) : "memory" );
+ __asm__( "movq %1, %0" : "=m"(*(long *)p) : "r"(x) : "memory" );
}
static inline void a_or_l(volatile void *p, long v)
{
- __asm__( "lock ; orl %1, %0"
+ __asm__( "lock ; orq %1, %0"
: "=m"(*(long *)p) : "r"(v) : "memory" );
}
return t;
}
+static inline int a_cas(volatile int *p, int t, int s)
+{
+ __asm__( "lock ; cmpxchgl %3, %1"
+ : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
+ return t;
+}
+
static inline void *a_swap_p(void *volatile *x, void *v)
{
__asm__( "xchg %0, %1" : "=r"(v), "=m"(*(void **)x) : "0"(v) : "memory" );