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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
#ifndef NASM_IFLAG_H
#define NASM_IFLAG_H
#include <inttypes.h>
#include <string.h>
#include "compiler.h"
int ilog2_32(uint32_t v);
#include "iflaggen.h"
#define IF_GENBIT(bit) (UINT32_C(1) << (bit))
static inline unsigned int iflag_test(const iflag_t *f, unsigned int bit)
{
unsigned int index = bit / 32;
return f->field[index] & (UINT32_C(1) << (bit - (index * 32)));
}
static inline void iflag_set(iflag_t *f, unsigned int bit)
{
unsigned int index = bit / 32;
f->field[index] |= (UINT32_C(1) << (bit - (index * 32)));
}
static inline void iflag_clear(iflag_t *f, unsigned int bit)
{
unsigned int index = bit / 32;
f->field[index] &= ~(UINT32_C(1) << (bit - (index * 32)));
}
static inline void iflag_clear_all(iflag_t *f)
{
memset(f, 0, sizeof(*f));
}
static inline void iflag_set_all(iflag_t *f)
{
memset(f, 0xff, sizeof(*f));
}
static inline int iflag_cmp(const iflag_t *a, const iflag_t *b)
{
int i;
for (i = sizeof(a->field) / sizeof(a->field[0]) - 1; i >= 0; i--) {
if (a->field[i] == b->field[i])
continue;
return (a->field[i] > b->field[i]) ? 1 : -1;
}
return 0;
}
static inline int iflag_cmp_cpu(const iflag_t *a, const iflag_t *b)
{
if (a->field[3] < b->field[3])
return -1;
else if (a->field[3] > b->field[3])
return 1;
return 0;
}
static inline unsigned int iflag_ffs(const iflag_t *a)
{
unsigned int i;
for (i = 0; i < sizeof(a->field) / sizeof(a->field[0]); i++) {
if (a->field[i])
return ilog2_32(a->field[i]) + (i * 32);
}
return 0;
}
#define IF_GEN_HELPER(name, op) \
static inline iflag_t iflag_##name(const iflag_t *a, const iflag_t *b) \
{ \
unsigned int i; \
iflag_t res; \
\
for (i = 0; i < sizeof(a->field) / sizeof(a->field[0]); i++) \
res.field[i] = a->field[i] op b->field[i]; \
\
return res; \
}
IF_GEN_HELPER(xor, ^)
/* Use this helper to test instruction template flags */
#define itemp_has(itemp, bit) iflag_test(&insns_flags[(itemp)->iflag_idx], bit)
/* Maximum processor level at moment */
#define IF_PLEVEL IF_IA64
/* Some helpers which are to work with predefined masks */
#define IF_SMASK \
(IF_GENBIT(IF_SB) |\
IF_GENBIT(IF_SW) |\
IF_GENBIT(IF_SD) |\
IF_GENBIT(IF_SQ) |\
IF_GENBIT(IF_SO) |\
IF_GENBIT(IF_SY) |\
IF_GENBIT(IF_SZ) |\
IF_GENBIT(IF_SIZE))
#define IF_ARMASK \
(IF_GENBIT(IF_AR0) |\
IF_GENBIT(IF_AR1) |\
IF_GENBIT(IF_AR2) |\
IF_GENBIT(IF_AR3) |\
IF_GENBIT(IF_AR4))
#define _itemp_smask(idx) (insns_flags[(idx)].field[0] & IF_SMASK)
#define _itemp_armask(idx) (insns_flags[(idx)].field[0] & IF_ARMASK)
#define _itemp_arg(idx) ((_itemp_armask(idx) >> IF_AR0) - 1)
#define itemp_smask(itemp) _itemp_smask((itemp)->iflag_idx)
#define itemp_arg(itemp) _itemp_arg((itemp)->iflag_idx)
#define itemp_armask(itemp) _itemp_armask((itemp)->iflag_idx)
static inline int iflag_cmp_cpu_level(const iflag_t *a, const iflag_t *b)
{
iflag_t v1 = *a;
iflag_t v2 = *b;
iflag_clear(&v1, IF_CYRIX);
iflag_clear(&v1, IF_AMD);
iflag_clear(&v2, IF_CYRIX);
iflag_clear(&v2, IF_AMD);
if (v1.field[3] < v2.field[3])
return -1;
else if (v1.field[3] > v2.field[3])
return 1;
return 0;
}
static inline iflag_t _iflag_pfmask(const iflag_t *a)
{
iflag_t r;
iflag_clear_all(&r);
if (iflag_test(a, IF_CYRIX))
iflag_set(&r, IF_CYRIX);
if (iflag_test(a, IF_AMD))
iflag_set(&r, IF_AMD);
return r;
}
#define iflag_pfmask(itemp) _iflag_pfmask(&insns_flags[(itemp)->iflag_idx])
#endif /* NASM_IFLAG_H */
|
