1 #include <cstdint>
2 
3 struct alignas(16) xmm_t {
4   uint64_t a, b;
5 };
6 
7 int main() {
8   constexpr uint64_t r8[] = {
9     0x0001020304050607,
10     0x1011121314151617,
11     0x2021222324252627,
12     0x3031323334353637,
13     0x4041424344454647,
14     0x5051525354555657,
15     0x6061626364656667,
16     0x7071727374757677,
17   };
18 
19   constexpr xmm_t xmm8[] = {
20     { 0x0F0E0D0C0B0A0908, 0x1716151413121110, },
21     { 0x100F0E0D0C0B0A09, 0x1817161514131211, },
22     { 0x11100F0E0D0C0B0A, 0x1918171615141312, },
23     { 0x1211100F0E0D0C0B, 0x1A19181716151413, },
24     { 0x131211100F0E0D0C, 0x1B1A191817161514, },
25     { 0x14131211100F0E0D, 0x1C1B1A1918171615, },
26     { 0x1514131211100F0E, 0x1D1C1B1A19181716, },
27     { 0x161514131211100F, 0x1E1D1C1B1A191817, },
28   };
29 
30   asm volatile(
31     "movq     0x00(%0), %%r8\n\t"
32     "movq     0x08(%0), %%r9\n\t"
33     "movq     0x10(%0), %%r10\n\t"
34     "movq     0x18(%0), %%r11\n\t"
35     "movq     0x20(%0), %%r12\n\t"
36     "movq     0x28(%0), %%r13\n\t"
37     "movq     0x30(%0), %%r14\n\t"
38     "movq     0x38(%0), %%r15\n\t"
39     "\n\t"
40     "movaps   0x00(%1), %%xmm8\n\t"
41     "movaps   0x10(%1), %%xmm9\n\t"
42     "movaps   0x20(%1), %%xmm10\n\t"
43     "movaps   0x30(%1), %%xmm11\n\t"
44     "movaps   0x40(%1), %%xmm12\n\t"
45     "movaps   0x50(%1), %%xmm13\n\t"
46     "movaps   0x60(%1), %%xmm14\n\t"
47     "movaps   0x70(%1), %%xmm15\n\t"
48     "\n\t"
49     "int3\n\t"
50     :
51     : "a"(r8), "b"(xmm8)
52     : "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "%xmm8",
53       "%xmm9", "%xmm10", "%xmm11", "%xmm12", "%xmm13", "%xmm14", "%xmm15"
54   );
55 
56   return 0;
57 }
58