This repository consists of a set of projects based on the original nand2tetris course: nand2tetris Website.
The aim of these projects is to implement a full scale 16 bit computer along with essential software (OS, assembler, compiler...) from scratch. The basic building block is a NAND logic gate and it is used to further create more complex logic gates up to a real 16 bit processor and an assembler for the processor instruction set architecture.
It continues with software-related projects such as an assembler, a virtual machine, a compiler and an OS. The final task of this course, is to create a game on the programming language you built yourself, running on the computer, which is your deed as well.
The tools required to work with these projects can be found at: nand2tetris Software Suite
The included projects are:
Using a hardware description language, I have designed all parts of a full scale 16 bit computer called Hack. It starts of with designing simple logic gates (AND, OR, NOR...), then moves on to more complex ones (Mux, Demux...). Afterwards, I use the already created elements to build an adder, an ALU, a main memory and a processor. Finally, the Hack Computer chip is assembled and can be used as an abstraction for further projects.
A program, which translates mnemonics to machine code. This project follows the Hack Language specification presented in chapter 4 of the nand2tetris book: The Elements of Computing Systems, Chapter 4
After building the assembler, a virtual machine is built in order to allow a two-tier compilation (Just like in Java and C#). For this purpose, the next project translates intermediate VM code to the assembly language presented before. The VM language specification can be found at: The Elements of Computing Systems, Chapter 7
A compiler that translates a high-level programming language called Jack (Syntax similar to Java), to the intermediate VM language. The language is described using a syntax grammar, specified in: The Elements of Computing Systems, Chapter 10
An OS, designed to provide utility functions, used by the compiler such as allocating dynamic memory and bootloading the initial code. It also provides a standard library, similar to other popular libraries. It consists of utilities for Math functions, handling I/O with the screen and keyboard, accesing raw memory and more.