MIPS Example

The factorial.s MIPS program implements the following C++ program:

int fact ( int n ) {
  if (n<=1) return 1;
  else return n*fact(n-1);
};

main () {
  int i, res;
  while (true) {
     cout << " Number? ";
     cin >> i;
     if (i<=0) break;
     res = fact(i);
     cout << "The factorial is: " << res << endl;
  };
};

To run the factorial program on gamma, type /public/cse/5317-501/spim/spim and then (inside spim) type load "/public/cse/5317-501/factorial.s" and then run. (If you are using omega, use 4305 instead of 5317.)