4 bit cpu truth table

[vead]

cpu contain with ALU and control unit

we used decoder as control unite
we made 4 bit ALU

what decoder we need to make 4 bit processor

 

[doraemon]

Hello!

When you are asking for help, nobody will be upset if you
say hello, thank you, etc...
Also nobody will hate you if you (try to) write correct sentences, starting with a capital
letter and ending with the correct punctuation, etc...

And beside this your question (the last line is a question, right?) is not clear. You may
consider posting schematics, etc... so that other users can understand the context.

Dora.