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