Intel 80186 / 80188 kernel for embedded development

Build script for the IA16 cross tools

SCO Xenix copy protection analysis

FuzixOS: Because Small Is Beautiful

🥑 A modern delightful operating system

Emulation of ISA sound cards and CD-ROM on Raspberry Pi Pico (GUS, SB/Adlib, MPU-401, Tandy, CMS, Panasonic CD-ROM) with USB mouse/joystick support

DeZog sample program for the C-compiler of z88dk

This is a small Z80 assembler program that just puts some colored lines on the ZX Spectrum's screen. The intention is to use this as a kind of tutorial for DeZog (Z80 debugger).

CP/M 2.2 compilers, assemblers, and interpreters

The Sinclair ZX Spectrum BASIC compiler!

Template to compile Z80/Z180/EZ80 CPM programs with sdcc

Bluetooth gamepad, mouse and keyboard support for ESP32 and PicoW

AT application for ESP32/ESP32-C2/ESP32-C3/ESP32-C6/ESP8266

C, C++, D, Rust and Zig for your z80

DivTIESUS is a SD/MMC interface for the ZX Spectrum, compatible with ESXDOS. It is not a clone of Mario Pratto's DivMMC.

Thin virtual file system for Raspberry Pi Pico

Adds more of the standard C/POSIX programming interface to Picolibc.

RP2350B PICO2 development board exposing 48 GPIO

Envision a future where every student can read all the code of a teaching operating system.

A plug-in PCB for the ZX Spectrum that can be populated with your own project

RISC-V Linux Port

ATOMBIOS disassembler

A C++ AMD AtomBIOS interpreter.

Migrating ancient X11R6 based NetBSD xsrc/xfree/xc/programs/Xserver/hw/sun Xserver sources to recent Xorg. See also https://gist.github.com/tsutsui/2f2251b7999ab9a0f756662e401cae75

Tools for working with Sun OpenBoot firmware (FCode)

Sun TurboGX+ SBUS framebuffer VESA PROM mod

Sun's OpenBoot implementation of OpenFirmware

Open Firmware (IEE1275-1994) implementation by its inventor.

UEFI firmware image viewer and editor