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This project is a Chip 8 emulator (interpreter) written in Squeak Smalltalk

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Yet Another Chip 8 Emulator

What is it?

This project is a Chip 8 emulator (interpreter) written in Squeak Smalltalk.

The original goal of these project was to learn how to code a simple emulator in smalltalk.

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Installing and running a ROM

  1. Make sure you have Metacello installed, running:
Installer ensureRecentMetacello.
  1. Load the project with:
Metacello new
  baseline: 'Chip8';
  repository: 'github://thiagoslino/Chip8-Squeak:master';
  load
  1. Running a ROM
Chip8Presenter runProgram: '/path/to/rom/filename'.

The CHIP-8 had no specified clock speed, so we'll use a delay to control it. Different games run best at different speeds, so we can control it here.

ROMs

A collection of public domain ROMs that can be used with this emulator can be found at:

Regular Keys

The original Chip 8 had a keypad with the numbered keys 0 - 9 and A - F (16 keys in total). Without any modifications to the emulator, the keys are mapped as follows:

Chip 8 Keypad Keyboard Key
1 2 3 C 1 2 3 4
4 5 6 D Q W E R
7 8 9 E A S D F
A 0 B F Z X C V

Resources

TODO

  • Automatic ROMs download from Zophar
  • Better morphic configuration (roms download button, etc...)

About

This project is a Chip 8 emulator (interpreter) written in Squeak Smalltalk

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