#include "io.h" int main(void) { long long acli, aclo; long long result; acli = 0x004433; result = 0x004433; __asm ("mtlo %1, $ac1\n\t" "mflo %0, $ac1\n\t" : "=r"(aclo) : "r"(acli) ); if (result != aclo) { printf("mflo wrong\n"); return -1; } return 0; }