Introduction

This is a 65C02 based computer with on-board Serial, Parallel IO, PS/2 Keyboard support and 3 Expansion slots.
A VGA card will come later as an expansion card

Memory Map

The Memory map I am using is currently as follows:
0x0000-0xCFFF: RAM
0xD010-0xD01F: ACIA
0xD020-0xD02F: VIA
0xD030-0xDFFF: IO Space
0xE000-0xFFFF: ROM

This can be changed to suit your needs simply by changing the configuration of the CPLD.

Software

Code for the PS/2 Keyboard controller is available on my github at https://github.com/LIV2/AVR-PS2-KBC

Sources for the CPLD, Monitor rom are available in the github repo: https://github.com/LIV2/Homebrew-65C02-Computer

Expansions

I have created a VGA card and a floppy disk controller for this computer which can be found under my projects and on github