M2CPU Project Overview

A very simple 8 bit computer written in VHDL. Major Project Features:

• custom 8 bit processor and memory
  • 75 instructions implemented in microcode
  • 16 bit address space (64KB memory)
  • 256B zero-page stack
• assembler written in C++
  • translates *.asm (ascii) files to *.hex files that can be flashed to the MAX10's internal memory
  • used to assemble all demonstration software
• 80x24 VGA character terminal
  • memory addresses 0xF87F to 0xFFFF are mapped to the video terminal
  • complete 128 char ascii plus a few graphical elements
  • custom font
  • 800x600@72Hz VGA video

Project Roadmap

Directory	Description
doc	project documentation
memory	64K memory source code
processor	processor source code
software	software written for the processor
tools	tools written for the computer and for development of the computer
top	project top level, and some 'front panel' logic
video	memory mapped VGA text console

Author

written by Zak Nafziger, September - December 2017

check out my last cpu: https://hackaday.io/project/665-4-bit-computer-built-from-discrete-transistors