#include "io.h" int main(void) { long long rd, rs, rt; long long res; rs = 0x1234567812345678; rt = 0x8765432187654321; res = 0x1234123487658765; __asm ("precrq.qh.pw %0, %1, %2\n\t" : "=r"(rd) : "r"(rs), "r"(rt) ); if (rd != res) { printf("precrq.qh.pw error\n"); return -1; } return 0; }