i have two 8 bit signed numbers which i'd represented in fixed-point . one is -3.15 = 1100.1110 , other number is 5.1 = 0101.0010 . now i want to obtain the product of these two numbers in verilog. Manually i got the product as 0100000111111100 which is not equal to -16.065. how should i make it equal to manual result ?