1  #include <c6x_intrinsics.h>
       2  
       3  extern void abort (void);
       4  
       5  int a1 = 0x5000;
       6  int b1 = 0xc000;
       7  int a2 = 0xd000;
       8  int b2 = 0x2000;
       9  int c = 0x8000;
      10  int main ()
      11  {
      12    if (_smpy (a1, b1) != 0xd8000000)
      13      abort ();
      14    if (_smpy (a2, b2) != 0xf4000000)
      15      abort ();
      16    if (_smpy (c, c) != 0x7fffffff)
      17      abort ();
      18  
      19    return 0;
      20  }