1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
#ifndef _INTERNAL_ATOMIC_H
#define _INTERNAL_ATOMIC_H
#include <stdint.h>
static inline int a_ctz_l(unsigned long x)
{
if (x == 0)
return 32;
int nTrailingZeros = 0;
while(!(x&1))
{
++nTrailingZeros;
x >>= 1;
}
return nTrailingZeros;
}
static inline int a_ctz_64(uint64_t x)
{
uint32_t lo = (uint32_t)x;
if (lo == 0)
return a_ctz_l((unsigned long)(x >> 32)) + 32;
else
return a_ctz_l((unsigned long)lo);
}
static inline void a_and_64(volatile uint64_t *p, uint64_t v)
{
*p &= v;
}
static inline void a_or_64(volatile uint64_t *p, uint64_t v)
{
*p |= v;
}
static inline void a_store_l(volatile void *p, long x)
{
*(long*)p = x;
}
static inline void a_or_l(volatile void *p, long v)
{
*(long*)p |= v;
}
static inline void *a_cas_p(volatile void *p, void *t, void *s)
{
if (*(long*)p == t)
*(long*)p = s;
return t;
}
static inline long a_cas_l(volatile void *p, long t, long s)
{
if (*(long*)p == t)
*(long*)p = s;
return t;
}
static inline int a_cas(volatile int *p, int t, int s)
{
if (*p == t)
*p = s;
return t;
}
static inline void a_or(volatile void *p, int v)
{
*(int*)p |= v;
}
static inline void a_and(volatile void *p, int v)
{
*(int*)p &= v;
}
static inline void a_inc(volatile int *x)
{
++*x;
}
static inline void a_dec(volatile int *x)
{
--*x;
}
static inline void a_store(volatile int *p, int x)
{
*p = x;
}
static inline void a_spin()
{
}
static inline void a_crash()
{
}
#endif
|
