Forums - Open Redstone Engineers

Minecraft name: Digitalis

What do you like the most about redstone?: Solving logical puzzles.

What's a thing you have made which demonstrates redstone knowledge?: Addressable RAM.

What does the thing do?: It has a 4-bit address and stores 8 bits of data. It has 8 addresses, meaning there are 8 bytes of data in total. Address 0000 is used for "no read". It is based on repeater locks and uses a stacked decoder and comparators to control what memory cell is giving output.

Image/s and/or video/s of the device, from imgur.com or youtube.com: https://imgur.com/a/TQKz8 (The RAM is the second picture. First picture is a shift reg connected to ROM connected to a decoder, third picture is an 8-bit ALU with some basic functions.)

What do you plan on making for your build trial?: 4-Bit custom-design ALU with RAM. I'll attempt to add whatever functions the moderator asks for.

The ALU should be able to do most bitwise functions. Can yours?

(12-12-2016, 05:57 AM)LambdaPI Wrote: [ -> ]The ALU should be able to do most bitwise functions. Can yours?

After doing a practice trial I discovered that my ALU design I built (not on my own plot, but for the practice trial) can't do AND via !A, !B, FC, OR. (doing !A !B gave me AND as the !OUT, but I had no !OUT switch at the time that I said I was done. ://) This was because my design didn't follow standard NOT logic, meaning my implementation of OR was nonstandard.

I suggest creating an ALU that can do all the functions. When you are ready you can post here.

As I said, if I just build in an !OUT then it can do AND logic using !A !B !OUT.

Prior to realizing it needed !OUT, it had:
!A, !B, OR, FC, CC, CIN.

Are there any additional functions needed to make it work for a trial besides this given set (with the addition of !OUT?)

Nope, if you know how to make it do all the gates, then you are accepted .

Accepted for trial! Hop on the server at mc.openredstone.org and ask a staff member for assistance.