Multiply two 32-bit fractional values generating a signed 64-bit fractional result.
Word64 __LL_mult(Word32 sinp1, Word32 sinp2)
long s1 = 0xA0030000; long s2 = 0xB0050000; long long result; result = LL_mult (s1, s2); // Expected value of result: 0xA0030000 * 0xB0050000 = 0x3BFA601E00000000