Firmware for the Lumazoid realtime music visualizer board

Improved Apple //c (ROM 4X) and Apple IIc Plus (ROM 5X) firmware.

"hyp" firmware stub for Qualcomm MSM8916/MSM8939 that allows using EL2/KVM

Yamaha DX7 Firmware ROM annotated disassembly.

Source code for the popular SwinSID SID replacement

An interface for Apple's LocalTalk networking protocol.

A FREE comprehensive step-by-step embedded Assembler tutorial covering the basics including coding your own vector table and linker script from scratch, I/O programming all the way to up to developing and hacking IoT.

An interface for the DCD protocol used by Apple's Hard Disk 20.

Unassembled Amstrad CPC6128 Firmware

Modification of the tgy firmware to support I2C communication for the BlueESC.

Firmware for PIC16F88/87 as a drop-in replacement for the Macintosh SE's stock ADB controller.

Firmware that emulates a trio of devices for Apple's ADB bus: a keyboard, a mouse, and a modem.

Disassembly and Analysis of the American Sega Dreamcast VMU BIOS (v1.05)

BIOS written in Rust.

Analysis of a Hanover Displays flip-dot display firmware

Amstrad CPC firmware adapted to run on an RC2014

Attempt to migrate the KK 2.x firmware from AVR Assembly (AVR Studio 4) to avr-gcc C

Enhanced ROM for Apple //e computers.

Monitor program for the Calculon/80 microcomputer

Tandy PDD floppy drive firmware