Hexadecimal Adder

[Legofreak]

I made and improved this thing over the past few days...

I studied a design by Newomaster and made my own. It's my first time making one of these. Combinational logic is a little more difficult for me than sequential logic so this was a challenge.

It adds 4 sets of hexadecimal digits 1, 16, 256, and 4096(in decimal). It just looks like 1, 10, 100, and 1000 in hex.

It goes up to 1FFFF which is FFFF+FFFF+1 or 131071 in decimal.



I also made a GUI for it


As you can see, the display is much larger than the adder itself...
Adder:light gray
GUI:black

[Nickster258]

This... this right here is awesome.

[Chibill]

I am going to work on an ACD adder and subtractor the Adder I might base off your design. Also I still need to work in a binary to ACD decoder. And a ACD to binary decoder also.

[Legofreak]

It is actually quite easy. Because I made all my power sources containers, I was able to switch all values of 15 to 9. Easy conversion to ANY base, just by changing maximum values.

ACD Adder



Cyan:decimal
Black:hexadecimal

I think cyan was a bad choice... lol

[Chibill]

Thanks!!

[Legofreak]

I was thinking just now that with this style of adder, bases less than 15 might not need 2 half adders because one of them can handle the C-in as well. I think I'm going to develop this a little. It should speed up ACD addition quite a bit.

[Chibill]

I am working on your analog to dec too