The Portal is a computer co-designed by CCMC and R2E, released in 1980 to the French market.
Why spend valuable time on a weird French luggable computer designed for accountants?
Excellent question! Well, I have bought one, and it doesn't work, so it is important to understand its details to restore the machine is an good state.
Also, I intend to write code for the portal (like a debug ROM) and interoperate with it, so understanding its hardware is a must.
- debug: Custom debug ROM
- disks: Floppy disk dumps
- docs: Some marketing documents, datasheets and reverse-engineering.
- filesystem: Anatomy of the floppy disks & Prologue filesystem
- findings: Software reverse-engineering and some history
- hardware: Hardware specs, details and datasheets
- machines: List of known machines and their revisions
- images: Pictures
- roms: ROM dumps and disassembly
- software: Extracted software
