Multiply two 64-bit fractional values generating a signed 64-bit fractional result.
Word64 __LL_LL_mult(Word64 sinp1, Word64 sinp2)
long long s1 = 0x00000000A0030000; long long s2 = 0x00000000B0050000; long long result; result = LL_LL_mult (s1, s2); // Expected value of result: 0x00000000A0030000 * 0x00000000B0050000 = 0xDC0A601E00000000