Simulate 4bit adder substractor with multiplexer

[renia_gr]

Hello,

I tried to simulate this circuit in multisim but i don't get any result,what do i do wrong?

any help will be greatly appreciated.

[renia_gr]

Some pics of the adder and the inside-outside of the multiplexer

[hmiraquesa]

Hi,

What do you mean when you said you didn't receive any data? Are you using probes or someting similar to get information from the circuit? I didn't see any of those terminal to check voltaje or current. I just check the images, I haven't seen the zip file.

Regards.