https://github.com/416rehman/computer-from-scratch

A project aimed at building a modern computer bottom-up from scratch
https://github.com/416rehman/computer-from-scratch

32-bit chip chipset circuit hardware hdl logic-gates nand2tetris

Last synced: 2 months ago
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A project aimed at building a modern computer bottom-up from scratch

• Host: GitHub
• URL: https://github.com/416rehman/computer-from-scratch
• Owner: 416rehman
• Created: 2022-04-16T08:32:16.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2022-06-20T05:46:23.000Z (over 3 years ago)
• Last Synced: 2025-03-11T08:29:09.281Z (7 months ago)
• Topics: 32-bit, chip, chipset, circuit, hardware, hdl, logic-gates, nand2tetris
• Language: Scilab
• Homepage:
• Size: 43 KB
• Stars: 2
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Computer From Scratch

A project aimed at building a modern computer bottom-up from scratch, including the following components:

 - Hardware Chipset

    - Circuitry and Logic Gates for Boolean Arithmetic

    - CPU (Central Processing Unit) 

    - ALU (Arithmetic Logic Unit)

    - RAM (Random Access Memory)

 - Low Level Programming

    - Machine Language

    - Assembly Language

 - Virtual Machine

    - VM Translator

 - High-Level Programming

    - Object Oriented Programming Language

    - Syntax Analysis and Code Generation

    - Compiler

 - Operating System.

# Hardware Chipset

The chipset designed for this computer, including the standard logic-gates, custom ALU, and random-access memory. Logic written and tested using HDL (hardware description language) by Nand2Tetris.

## How to use

Install [Nand2Tetris for VS Code](https://marketplace.visualstudio.com/items?itemName=roblourens.vscode-nand2tetris-hdl)

to open the .hdl files, and use the Nand2Tetris's Run Code feature to test the logic for a circuit (tests defined in .tst, and correct results in .cmp)

You can also use the online [falstad circuit simulator](http://www.falstad.com/circuit/) to run the .circuitjs.txt files to simulate the circuits.

## Circuit Designs

These are some of the designs implemented using the falstad circuit simulator, the logic for these can be found in the corresponding `.circuitjs.txt` files.

Arithmetic Logic Unit

![ALU](https://i.imgur.com/uyOP5xF.png)

Dmux

![DMux](https://i.imgur.com/i2oeImq.png)

DMux4way

![DMux4Way](https://i.imgur.com/TH1DaN4.png)

DMux8Way

![DMux8Way](https://i.imgur.com/2DQr3mK.png)

And

![And](https://i.imgur.com/FiB1May.png)

Or

![Or](https://i.imgur.com/QWb1TWh.png)



*If you would like to complete this project yourself, make sure to check out the exemplary [nand2tetris](https://www.nand2tetris.org/) course.*