How to Build a 4bit CPU in Minecraft Part 1 - Introduction

Part 2: http://www.youtube.com/watch?v=lx7mqBj6Q3k&feature=player_embedded

Learn how a cpu works by building one yourself in Minecraft. No need to be an expert in the field, just start building one.

Prerequisites
-Know the basics of redstone circuits (eg. 15 block limit, send signals upwards etc) Learn the basics here: www.minecraftwiki.net/wiki/Redstone_circuits
-Know how to count and add in binary

This is part 1, an introduction to the CPU we are going to build.

CPU specs
4bit
3 registers, A, B, C each hold 4bits of information.
3 bytes of ROM to store your programs (3 lines of code can be stored in the ROM)

Commands
MOV (copy values between registers)
ADD (add values in registers)

Category:

Gaming

Tags:

• cpu
• redstone
• minecraft
• circuits
• tutorial

[TheXboxnut]

I do alot of redstone stuff at my channel, including explanations of cpu parts like you (my first one was memory and registers too) but i just dont underatand how by cutting off your redstone it performs code like that :/ it doesnt make sense

[GikoSan]

@TheXboxnut All it really is, is the bottom 4bits are connected to a instruction decoder which tell different parts of the cpu to do different things depending on what you put in(like 0110 will switch register A to load values, control the data selector etc). It's a lot like a BCD to 7segment decoder. Different Inputs tell it to switch on different signals on the other end. Cutting off the red stone is just a way to represent a 0 signal.

[DemolishR94]

im not really that in to red stone so sorry for asking, but what does it do?

[GikoSan]

@DemolishR94 as shown in the demonstration it can add and move values between registers from 0 ~ 16, and you can program it.

[chancerogers85]

For how old of a version of minecraft this is.. This is a good build... It must have sucked have to manually select the bits, nowadays you can just use piston bit selectors and have a design 10x smaller than that

[poleeed]

is this George Lucas?

[sciman001]

so, it can ADD, MOVE, and WRITE?

[ThePokeOS]

Too many items mod for all items good vid

[smolians16]

im one of those people who dont like thinking.

[smolians16]

this does not give much insight of how to build a cpu.

[kazoo97]

just wondering did you hack minecraft because that would take a long time to get all those supplise to build that in survival mode

[lcething]

@xrayfishx fastest clock in mc is 1/10 of a sec I think cuz that's how fast redstone can pulse. (or maybe it's 2/10 of sec) but to give u a perspective, 2.5ghz pulses every 4 nanoseconds. (4 x 10/-9).

[xrayfishx]

whats the clock rate of that computer?

and how fast would my computer finish running that program? I have a single core 2.009 GHz processor.