What is the best Floating number method?

[Altera_Forum]

Hello friends... 

 I want to know what is the efficient code to implement this equation : 1/4 ( x+y) + 1/2  However, inputs are integers , and the output will be also rounded to integer. But the intermediate calculations needs to use 1/4 and 1/2.  Kindly inform me about the best way to code this equation.  Thanks...:)

[Altera_Forum]

use fixed point. Its just integer with an offset (so easily implemented in an FPGA).

[Altera_Forum]

PS: (x+y)/4 + 1/2 is identical to the equation (x+y + 2) /4. divides by 2^n are just a bit shift.

[Altera_Forum]

--- Quote Start ---  use fixed point. Its just integer with an offset (so easily implemented in an FPGA).  --- Quote End ---    yes use fixe point. just add x + y then add half of result and truncate 2 LSBs  I am assuming you want to add x+y, divide by 4 then round

[Altera_Forum]

Thank you very much. I am coding it right now to see how it is going. Best regards.