[iRobLiquorStores] Build Server Application

[iRobLiquorStores]

Minecraft name: iRobLiquorStores

What do you like the most about redstone?:
The ability to create complex machines that can crunch math (in binary :3) and display anything you want onto a piston powered screen (or redstone lamp), just with the basic on off state of redstone dust, repeaters, and torches.

What's a thing you have made which demonstrates redstone knowledge?:
I've made a 4 bit computer (my first) that I called -The Overcomplicated Useless 4-bit Calculator-, however it is a computer because it uses a clock and shift registers to run lines of code with commands that do certain things. I only had a 4-bit ALU that can add and subtract numbers, Added a little RAM and some ROM for the control panel. However this was on Xbox Minecraft. I have recreated the ALU on the school server but most of the credits go to BennyQBD because the design was originally his with the D flip flop inputs and the adder itself I presume, because I saw it on his YT video.

What does the thing do?:
It takes an input and can either add or subtract that input up to numbers 0-15 (in binary) its a 4-bit ALU so thats why its so limited.

Image and/or video, from imgur.com or youtube.com:
http://imgur.com/a/wvb2Z

[newomaster]

Since those adders are not your design, could you give a little explanation on how they work? (So we know that you know your stuff :3)

[iRobLiquorStores]

Well I've built them 5 times and I don't really know exactly how they work.. :L
Sooo I'll show a different redstone item and that is the Shift Register.
I built a 4 bit shift register configured as Serial In, Parallel Out (SIPO)! Its got all the connections to allow Step Thru mode (each button press clocks it on time), a regular monostable clock, a button for inputting the first bit, a button to reset all bits, and last but not least an auto-loop enable lever.

Album: http://imgur.com/a/7BXkx

How it Works:
Each bit consists of a one block wide D Flip Flop with its output connected to the input of the next. Each clock line is connected to one clock (Serial In) and every time it pulses, the bit shifts to the left by one place (Parallel out). I used this on my 4-Bit Calc to execute each line of code that held the commands. (It was actually a 24 bit shift register that went from right to left!)

The Insert Bit command simply provides a pulse to the output torch so it effectively bypasses the clock and sets the bit to a 1.

The Reset command essentially powers the top lines of each shift register bit, turning off any torches that were on before.

The Clock enable command just allows the clock to run and activate the clock line... Not really anything to say here.

The Step-Thru command is like a debug mode so to speak, (in Visual Studio the step through mode executes one line of code at a time) but in this instance, it only shifts the bit to the left one time, instead of repeatedly doing it every clock pulse.

The Auto Loop command allows the last bit to shift all the way back into the first so it actually repeats itself, without losing the bit on the end.


I hope I was able to explain it enough so I can get a plot :3
If you want, I can re-make my 4-bit calc on the school server (whenever I get a plot there.. EvilDevil59NL was kind enough to let me build in his plot! thx)

[iRobLiquorStores]

Ok here's my own adder design: http://imgur.com/a/Y9Fi3
It uses an XOR gate combined with an AND gate (boh vertical) to add numbers in binary

The carry out is the AND, (because when A and B are ON, the Sum is 0 and the carry is 1)

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I just noticed I forgot to put the Carry out (AND) gates in the last 3 bits but the design still works, sorry about that xD

[iRobLiquorStores]

Built a smaller, more compact adder design. I fit 4 bits in the space of 2 /12 of my original design
Its also not just an adder like the other one either, its got Add/Sub functions, XOR/OR functions too.

All the commands work :'D
My best work in redstone probably, although I should note that the first gate is actually an OR gate.. Yet it still works and I somehow overlooked that part in the beginning lol.


Forgot the album xD
http://imgur.com/a/kuRpF

[newomaster]

Looks good hop on the server and as an admin/foreman for a trial.