#include struct alignas(16) xmm_t { uint64_t a, b; }; int main() { constexpr uint64_t mm[] = { 0x0001020304050607, 0x1011121314151617, 0x2021222324252627, 0x3031323334353637, 0x4041424344454647, 0x5051525354555657, 0x6061626364656667, 0x7071727374757677, }; constexpr xmm_t xmm[] = { { 0x0706050403020100, 0x0F0E0D0C0B0A0908, }, { 0x0807060504030201, 0x100F0E0D0C0B0A09, }, { 0x0908070605040302, 0x11100F0E0D0C0B0A, }, { 0x0A09080706050403, 0x1211100F0E0D0C0B, }, { 0x0B0A090807060504, 0x131211100F0E0D0C, }, { 0x0C0B0A0908070605, 0x14131211100F0E0D, }, { 0x0D0C0B0A09080706, 0x1514131211100F0E, }, { 0x0E0D0C0B0A090807, 0x161514131211100F, }, }; asm volatile( "movq 0x00(%0), %%mm0\n\t" "movq 0x08(%0), %%mm1\n\t" "movq 0x10(%0), %%mm2\n\t" "movq 0x18(%0), %%mm3\n\t" "movq 0x20(%0), %%mm4\n\t" "movq 0x28(%0), %%mm5\n\t" "movq 0x30(%0), %%mm6\n\t" "movq 0x38(%0), %%mm7\n\t" "\n\t" "movaps 0x00(%1), %%xmm0\n\t" "movaps 0x10(%1), %%xmm1\n\t" "movaps 0x20(%1), %%xmm2\n\t" "movaps 0x30(%1), %%xmm3\n\t" "movaps 0x40(%1), %%xmm4\n\t" "movaps 0x50(%1), %%xmm5\n\t" "movaps 0x60(%1), %%xmm6\n\t" "movaps 0x70(%1), %%xmm7\n\t" "\n\t" "int3\n\t" : : "a"(mm), "b"(xmm) : "%mm0", "%mm1", "%mm2", "%mm3", "%mm4", "%mm5", "%mm6", "%mm7", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7" ); return 0; }