A2Z is a computer made by myself from A to Z. The CPU has his own instruction set, invented by myself. It is a didactic project. The goal is to work on every part of a computer : hardware and software. The hardware is based on a small FPGA, with a custom 16bits CPU core inside and some peripherals. The software is coded in a custom language : "A2Z_Basic" with a homemade cross-compiler that runs on a PC, also designed from scratch, and coded in C. All source code (Verilog, C, A2Z_Basic) is provided in this page. Everything is OPEN SOURCE. There is an emulator available, so that you can discover this computer even without the FPGA board
It boots really fast.. Simply turn on and it works.
Also, no virus nor hidden CPUs inside. Too bad it is only running on 25Mhz.