Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Simple Signed Adder is complex to understand

Hi guys, still asking beginner questions, sorry. I have this code and cant figure out what the '0' in ('0' & cin) is doing. This is what I think: Lets say we we need to do add two to negative four...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Thanks kaz. How do you mean "don't need cin as I add in one go"? Also, again with that '0', does it concatenate to sum_sig(4) or sum_sig(1). I believe its the sum_sig(1), but I'm asking just to make sure.