CPU and USB On-The-Go project on bus S100

BASIC code from the 1980s Usborne programming book, Introduction to Computer Programming BASIC for beginners.

ALTAÏR: Altair 8800 emulator

Connecting the Amstrad CPC 6128 expansion port to an Arduino Mega and copying information from a micro SD card.

This is a reconstruction of the original 1981-82 IBM PC BIOS source code using scanning and transcription of the BIOS listings found in the IBM Technical Reference manuals.

Computer Lynx character set extracted from ROM files

I/O 64 project on bus S100

The famous Intel 8080 CP/M 2.2 to Intel 8086/8088 MS-DOS assembly language translator.

Experimental modification for the Atari ST, to have a RGB-565 colorspace (65K colors) ; inspired by the textual description from Barry Orlando.

Kick assembler personalized version of the C=64 rev. 781220 Dead Test + more

Open Hardware 64 Kb RAM Expansion for the Commodore 16

Open Hardware Remake of the Commodore Amiga 500+ Mainboard

Some Pi scripts and Psion OPL to link the Psion MC400 to the internet via an attached Raspberry Pi

Open Hardware 8/16/32 Kb Cartridge for the Commodore 16, 116 and Plus/4

Morrow Designs Micronix and tools

CHIPOS with Logical Operators

Play digital samples on your Commodore 16/116/+4

User Port Cartridge for the Commodore 16, 116 and Plus/4

The amazing multi-processor 8-bit microcomputer, featuring Z80, 6502 and AVR processors. Built with CPLDs, CERBERUS 2100™ is fully programmable even with respect to its hardware, at the individual gate and flip-flop level.

ZX Spectrum Replica