OS64

Spec sheet

Purpose

OS64 is a Commodore 64 emulator operating system for x86 PCs, formerly called Emudore 64.Read 11 Oct 2026 · github.com

Integrations

The README identifies VirtualBox as the virtual machine started by the build process.Read 4 Oct 2026 · github.com

License

The repository identifies its license as GPL-3.0.Read 11 Oct 2026 · github.com

Maker

The GitHub account identifies its owner as Scott Hutter, a software developer in Tennessee, USA.Read 4 Oct 2026 · github.com

Boot media

The demo can boot from a CD-ROM or a bootable flash drive.Read 11 Oct 2026 · github.com

Build

The code compiles for an x86 Linux system using gcc 4.8.4 and starts a VirtualBox VM named “emudore64.”Read 4 Oct 2026 · github.com

Build environment

The code compiles for an x86 Linux system using GCC 4.8.4.Read 11 Oct 2026 · github.com

Download

The repository includes an OS64 boot ISO that the README says can be burned to CD-ROM or made into a bootable flash drive.Read 4 Oct 2026 · github.com

Drive limitation

The maker says the demo does not currently work with AHCI SATA drives.Read 4 Oct 2026 · github.com

Drive support

Loading and saving through drive 8 is described for a primary-master IDE ATA drive formatted as FAT32.Read 11 Oct 2026 · github.com

Emulation status

The project says emulation is pretty good, while current work focuses on hard-drive access and keyboard support.Read 11 Oct 2026 · github.com

How it runs

It combines a core operating system with a C64 emulator as the kernel and can boot from CD-ROM or a flash drive.Read 4 Oct 2026 · github.com

How it works

It combines a core operating system with a C64 emulator as the kernel and runs bare metal on a PC.Read 11 Oct 2026 · github.com

Interface

The ESC key opens a screen for managing the drive and other functions, which the maker says is primarily for testing and subject to change.Read 4 Oct 2026 · github.com

Storage focus

The project’s stated current focus includes accessing the machine’s hard drive and improving keyboard support.Read 4 Oct 2026 · github.com

Storage limitation

The README says AHCI SATA drives do not currently work.Read 11 Oct 2026 · github.com

Testing screen

The ESC key opens a screen for managing the drive and other functions, and the README says this screen is mainly for testing.Read 11 Oct 2026 · github.com

Virtual machine

The build automatically initiates VirtualBox and starts a VM named emudore64, according to the makefile instructions.Read 11 Oct 2026 · github.com

Where Specifiction places it

• Commodore 64 Emulators#23 of 316.8