How to construct logic circuit from the truth table?

[rg350dxlover]

Hi guys. I need help with this truth table and ALU. I don't know how to construct the circuit from the table given. Hope you guys can help. Attached is the table and ALU given.
I just need to construct the circuit now but I'm having problem on how to start. I simplified the expression given from the truth table.
Like for G=A, I can modify it to be G=AB+A(bar B). But then how do I get S0,S1,S2 into the equation? I'm stuck. :sad:

Thanks.

 

[Prototyp_V1.0]

How comes that you know about simplifying expressions and know about ALU, but still doesn't have a clue about logic cirguits?

In your expression the OR-gate would be placed to right of the and gate.