Basic RCA ALU Example Schematic gives you a working redstone computer part for your world. This build features a Ripple Carry Adder that acts as an Arithmetic Logic Unit. It uses standard redstone blocks to process different signals. You can look at the wiring to understand how basic math operations work inside the game. The structure is compact and fits easily into flat testing areas.

Basic RCA ALU Example Schematic Thumbnail

3D Preview:

Features:

  • Compact Build: The structure takes up an 18 by 8 by 21 block area, making it easy to paste into your testing world.
  • Control Lines: Includes specific inputs like !A, !B, FC, CIN, and XOR->OR for different math operations.
  • The Basic RCA ALU Example Schematic uses exactly 651 vanilla blocks, so you do not need any extra mods to load it.
  • Acts as a working Ripple Carry Adder to process simple calculations.
  • Helps players learn how to build real computer logic using standard redstone components.

Schematic Specs:

Minecraft1.21.x
Dimensions18×8×21
Total Blocks651
Top Blocks Used
Redstone Wire 207Redstone Wall Torch 90Orange Concrete 61Smooth Quartz 57Green Concrete 56

Basic RCA ALU Example Schematic Download Links

For Minecraft 1.21.x

Vanilla 2 KB Jun 1, 2026
Download from Server 1 — Download from Server 2

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