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
|
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#define JZ_NEXT ".byte 0x74,0x00" /* jz the-next-insn */
int main ( void )
{
char* junk = malloc(48);
assert(junk);
/* --- INTEGER --- */
printf("\nComplain int64\n");
__asm__ __volatile__(
"movq 0(%0), %%rax\n\t"
"movq 8(%0), %%r8\n\t"
"xorq %%r8, %%rax\n\t"
JZ_NEXT
: : "r"(junk) : "r8", "rax", "cc"
);
printf("\nNo complain int64\n");
__asm__ __volatile__(
"movq 0(%0), %%rax\n\t"
"movq 8(%0), %%r8\n\t"
"xorq %%rax, %%rax\n\t"
JZ_NEXT
: : "r"(junk) : "r8", "rax", "cc"
);
/* --- MMX --- */
printf("\nComplain mmx\n");
__asm__ __volatile__(
"emms\n\t"
"movq 0(%0), %%mm0\n\t"
"movq 8(%0), %%mm7\n\t"
"pxor %%mm7, %%mm0\n\t"
"movq %%mm0, 16(%0)\n\t"
"cmpq $0,16(%0)\n\t"
JZ_NEXT
: : "r"(junk) : "mm7", "mm0", "cc", "memory"
);
printf("\nNo complain mmx\n");
__asm__ __volatile__(
"emms\n\t"
"movq 0(%0), %%mm0\n\t"
"movq 8(%0), %%mm7\n\t"
"pxor %%mm0, %%mm0\n\t"
"movq %%mm0, 16(%0)\n\t"
"cmpq $0,16(%0)\n\t"
JZ_NEXT
: : "r"(junk) : "mm7", "mm0", "cc", "memory"
);
/* --- SSE1 --- */
printf("\nComplain sse xorps\n");
__asm__ __volatile__(
"movups 0(%0), %%xmm0\n\t"
"movups 16(%0), %%xmm8\n\t"
"xorps %%xmm8, %%xmm0\n\t"
"movups %%xmm0, 32(%0)\n\t"
"movq 32(%0), %%rax\n\t"
"addq 40(%0), %%rax\n\t"
JZ_NEXT
: : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
);
printf("\nNo complain sse xorps\n");
__asm__ __volatile__(
"movups 0(%0), %%xmm0\n\t"
"movups 16(%0), %%xmm8\n\t"
"xorps %%xmm0, %%xmm0\n\t"
"movups %%xmm0, 32(%0)\n\t"
"movq 32(%0), %%rax\n\t"
"addq 40(%0), %%rax\n\t"
JZ_NEXT
: : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
);
/* --- SSE2 --- */
printf("\nComplain sse2 pxor\n");
__asm__ __volatile__(
"movups 0(%0), %%xmm0\n\t"
"movups 16(%0), %%xmm8\n\t"
"pxor %%xmm8, %%xmm0\n\t"
"movups %%xmm0, 32(%0)\n\t"
"movq 32(%0), %%rax\n\t"
"addq 40(%0), %%rax\n\t"
JZ_NEXT
: : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
);
printf("\nNo complain sse2 pxor\n");
__asm__ __volatile__(
"movups 0(%0), %%xmm0\n\t"
"movups 16(%0), %%xmm8\n\t"
"pxor %%xmm0, %%xmm0\n\t"
"movups %%xmm0, 32(%0)\n\t"
"movq 32(%0), %%rax\n\t"
"addq 40(%0), %%rax\n\t"
JZ_NEXT
: : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
);
printf("\nComplain sse2 xorpd\n");
__asm__ __volatile__(
"movups 0(%0), %%xmm0\n\t"
"movups 16(%0), %%xmm8\n\t"
"xorpd %%xmm8, %%xmm0\n\t"
"movups %%xmm0, 32(%0)\n\t"
"movq 32(%0), %%rax\n\t"
"addq 40(%0), %%rax\n\t"
JZ_NEXT
: : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
);
printf("\nNo complain sse2 xorpd\n");
__asm__ __volatile__(
"movups 0(%0), %%xmm0\n\t"
"movups 16(%0), %%xmm8\n\t"
"xorpd %%xmm0, %%xmm0\n\t"
"movups %%xmm0, 32(%0)\n\t"
"movq 32(%0), %%rax\n\t"
"addq 40(%0), %%rax\n\t"
JZ_NEXT
: : "r"(junk) : "rax", "xmm8", "xmm0", "cc", "memory"
);
free(junk);
return 0;
}
|
