/entrex

Entrex Trapezoid reverse engineering

Primary LanguageCGNU General Public License v2.0GPL-2.0

Entrex project February 21, 2023

The Entrex Trapezoid is a piece of ancient computing history. A data entry terminal with a unique serial interface.

This is something I am collaborating with AJ on.

The "rom" directory has the 8080 disassembler, the ROM firmware files, and most importantly, the annotated ROM disassembly.

The "remap" directory has a python script (and some instructions for using it) that I use to relabel signals on his KiCAD schematic.

See my notes on this project at:

http://cholla.mmto.org/computers/reverse/entrex/