1#define a_cas a_cas
2static inline int a_cas(volatile int *p, int t, int s)
3{
4	__asm__ __volatile__ (
5		"lock ; cmpxchg %3, %1"
6		: "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
7	return t;
8}
9
10#define a_swap a_swap
11static inline int a_swap(volatile int *p, int v)
12{
13	__asm__ __volatile__(
14		"xchg %0, %1"
15		: "=r"(v), "=m"(*p) : "0"(v) : "memory" );
16	return v;
17}
18
19#define a_fetch_add a_fetch_add
20static inline int a_fetch_add(volatile int *p, int v)
21{
22	__asm__ __volatile__(
23		"lock ; xadd %0, %1"
24		: "=r"(v), "=m"(*p) : "0"(v) : "memory" );
25	return v;
26}
27
28#define a_and a_and
29static inline void a_and(volatile int *p, int v)
30{
31	__asm__ __volatile__(
32		"lock ; and %1, %0"
33		: "=m"(*p) : "r"(v) : "memory" );
34}
35
36#define a_or a_or
37static inline void a_or(volatile int *p, int v)
38{
39	__asm__ __volatile__(
40		"lock ; or %1, %0"
41		: "=m"(*p) : "r"(v) : "memory" );
42}
43
44#define a_and_64 a_and_64
45static inline void a_and_64(volatile uint64_t *p, uint64_t v)
46{
47	__asm__ __volatile(
48		"lock ; and %1, %0"
49		 : "=m"(*p) : "r"(v) : "memory" );
50}
51
52#define a_or_64 a_or_64
53static inline void a_or_64(volatile uint64_t *p, uint64_t v)
54{
55	__asm__ __volatile__(
56		"lock ; or %1, %0"
57		 : "=m"(*p) : "r"(v) : "memory" );
58}
59
60#define a_inc a_inc
61static inline void a_inc(volatile int *p)
62{
63	__asm__ __volatile__(
64		"lock ; incl %0"
65		: "=m"(*p) : "m"(*p) : "memory" );
66}
67
68#define a_dec a_dec
69static inline void a_dec(volatile int *p)
70{
71	__asm__ __volatile__(
72		"lock ; decl %0"
73		: "=m"(*p) : "m"(*p) : "memory" );
74}
75
76#define a_store a_store
77static inline void a_store(volatile int *p, int x)
78{
79	__asm__ __volatile__(
80		"mov %1, %0 ; lock ; orl $0,(%%rsp)"
81		: "=m"(*p) : "r"(x) : "memory" );
82}
83
84#define a_barrier a_barrier
85static inline void a_barrier()
86{
87	__asm__ __volatile__( "" : : : "memory" );
88}
89
90#define a_spin a_spin
91static inline void a_spin()
92{
93	__asm__ __volatile__( "pause" : : : "memory" );
94}
95
96#define a_crash a_crash
97static inline void a_crash()
98{
99	__asm__ __volatile__( "hlt" : : : "memory" );
100}
101
102#define a_ctz_64 a_ctz_64
103static inline int a_ctz_64(uint64_t x)
104{
105	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
106	return x;
107}
108
109#define a_ctz_l a_ctz_l
110static inline int a_ctz_l(unsigned long x)
111{
112	__asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
113	return x;
114}
115