| #include <cinttypes> |
| #include <cstdint> |
| #include <cstdio> |
| |
| union alignas(16) xmm_t { |
| uint64_t as_uint64[2]; |
| uint8_t as_uint8[16]; |
| }; |
| |
| int main() { |
| constexpr xmm_t xmm_fill = { |
| .as_uint64 = { 0, 0 } |
| }; |
| |
| uint64_t mm[8]; |
| xmm_t xmm[8]; |
| |
| asm volatile( |
| "movq %2, %%mm0\n\t" |
| "movq %2, %%mm1\n\t" |
| "movq %2, %%mm2\n\t" |
| "movq %2, %%mm3\n\t" |
| "movq %2, %%mm4\n\t" |
| "movq %2, %%mm5\n\t" |
| "movq %2, %%mm6\n\t" |
| "movq %2, %%mm7\n\t" |
| "\n\t" |
| "movaps %2, %%xmm0\n\t" |
| "movaps %2, %%xmm1\n\t" |
| "movaps %2, %%xmm2\n\t" |
| "movaps %2, %%xmm3\n\t" |
| "movaps %2, %%xmm4\n\t" |
| "movaps %2, %%xmm5\n\t" |
| "movaps %2, %%xmm6\n\t" |
| "movaps %2, %%xmm7\n\t" |
| "\n\t" |
| "int3\n\t" |
| "\n\t" |
| "movq %%mm0, 0x00(%0)\n\t" |
| "movq %%mm1, 0x08(%0)\n\t" |
| "movq %%mm2, 0x10(%0)\n\t" |
| "movq %%mm3, 0x18(%0)\n\t" |
| "movq %%mm4, 0x20(%0)\n\t" |
| "movq %%mm5, 0x28(%0)\n\t" |
| "movq %%mm6, 0x30(%0)\n\t" |
| "movq %%mm7, 0x38(%0)\n\t" |
| "\n\t" |
| "movaps %%xmm0, 0x00(%1)\n\t" |
| "movaps %%xmm1, 0x10(%1)\n\t" |
| "movaps %%xmm2, 0x20(%1)\n\t" |
| "movaps %%xmm3, 0x30(%1)\n\t" |
| "movaps %%xmm4, 0x40(%1)\n\t" |
| "movaps %%xmm5, 0x50(%1)\n\t" |
| "movaps %%xmm6, 0x60(%1)\n\t" |
| "movaps %%xmm7, 0x70(%1)\n\t" |
| : |
| : "a"(mm), "b"(xmm), "m"(xmm_fill) |
| : "%mm0", "%mm1", "%mm2", "%mm3", "%mm4", "%mm5", "%mm6", "%mm7", "%xmm0", |
| "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7" |
| ); |
| |
| for (int i = 0; i < 8; ++i) |
| printf("mm%d = 0x%016" PRIx64 "\n", i, mm[i]); |
| for (int i = 0; i < 8; ++i) { |
| printf("xmm%d = { ", i); |
| for (int j = 0; j < sizeof(xmm->as_uint8); ++j) |
| printf("0x%02x ", xmm[i].as_uint8[j]); |
| printf("}\n"); |
| } |
| |
| return 0; |
| } |
