65-o-fun

Introduction

6502 home computer simulator with direct manipulation of memory and registers. Supports screen output and keyboard input.

Goal

• Written in Typescript
• Interaction via Vite/Vue/Node based webfrontend
• Should contain all legal and illegal 6502 opcodes
• Should support other CPUs from the 6502 familiy like the 65C02
• Easy interaction with a graphics, sounds, input devices (keyboard, mouse, gamepad, joystick) etc.
• Easy way to load external programs
• Banked RAM allowing to use more then 64K of RAM
• Dedicated video RAM
• A modern BIOS with a linux like command line interface (separate Repository)

Try it out

https://y0014984.github.io/65-o-fun

Features

• All official 6502 opcodes
• Decimal Mode
• All illegal 6502 opcodes (not yet)
• All 65C02 opcodes (not yet)
• Memory/Register view
• Memory/Register edit
• Single Step Execution
• Unit tests (partial)
• Random Opcode Tests
• Keyboard input
• Display with tile based output (8x8 tiles in black and white) 320x240px = 40x30 tiles
• 64 colors (foreground and background)
• software and time-based hardware interrupts
• date and time registers
• Filesystem on Storage
• manual breakpoints
• More display modes (not yet)
• RAM banking (not yet)
• Linux like Bios commands

Build

Clone/copy the repository. Install node/npm. Then install the necessary modules with:

npm install

Run the project in dev mode with:

npm run dev

Build the project with the following command:

npm run build

Run tests with (temporarily broken):

npm run test

or with (temporarily broken):

npm run singleStepTests

or with (temporarily broken):

npm run testProg