#include extern void abort (void); int a1 = 0x5000; int b1 = 0xc000; int a2 = 0xd000; int b2 = 0x2000; int c = 0x8000; int main () { if (_smpy (a1, b1) != 0xd8000000) abort (); if (_smpy (a2, b2) != 0xf4000000) abort (); if (_smpy (c, c) != 0x7fffffff) abort (); return 0; }