#include "io.h" int main(void) { long long rd, rt; long long result; rt = 0xFFFFFFFF11111111; result = 0xFFFFFFFF00000000; __asm ("preceq.l.pwl %0, %1\n\t" : "=r"(rd) : "r"(rt) ); if (result != rd) { printf("preceq.l.pwl wrong\n"); return -1; } return 0; }