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Virgil Dupras 0a26acfee6 ps2: interpret KC 0x1f as '2' 
The '2' key on my PS/2 keyoard never worked on Collapse OS, I
wasn't sure why. I thought the keyboard was broken, but then I
tried another one, still broken. But it's only the '2'!

The KC sent is 0x1f. Is it a timing problem with the ATtiny? I
have yet to wire my prototype for logic probing. Meanwhile, let's
apply a band-aid.
2020-11-06 17:21:13 -05:00
arch sms: simplify and solidify ports-related drivers 2020-11-02 18:53:57 -05:00
blk ps2: interpret KC 0x1f as '2' 2020-11-06 17:21:13 -05:00
cvm Add word ROT> 2020-10-29 12:41:08 -04:00
doc ps2: interpret KC 0x1f as '2' 2020-11-06 17:21:13 -05:00
emul sms: simplify and solidify ports-related drivers 2020-11-02 18:53:57 -05:00
tests Add word ROT> 2020-10-29 12:41:08 -04:00
tools tools: add smsrom 2020-10-10 13:30:43 -04:00
.build.yml Replace Travis CI with Sourcehut CI 2020-06-23 20:53:38 -04:00
.gitignore recipes/ti84: move recipe blocks into local overlay 2020-09-20 20:24:09 -04:00
CONTRIBUTING.md Complete overhaul of recipes 2020-10-30 20:39:39 -04:00
COPYING Re-license to GPLv3 2019-05-08 20:18:05 -04:00
README.md Complete overhaul of recipes 2020-10-30 20:39:39 -04:00
runtests.sh emul: copy libz80 directly into tree, pre-generated 2020-10-24 15:42:08 -04:00

README.md

Collapse OS

Bootstrap post-collapse technology

Collapse OS is a Forth operating system and a collection of tools and documentation with a single purpose: preserve the ability to program micro- controllers through civilizational collapse.

It it designed to:

  1. Run on minimal and improvised machines.
  2. Interface through improvised means (serial, keyboard, display).
  3. Edit text files.
  4. Compile assembler source files for a wide range of MCUs and CPUs.
  5. Read and write from a wide range of storage devices.
  6. Assemble itself and deploy to another machine.

Additionally, the goal of this project is to be as self-contained as possible. With a copy of this project, a capable and creative person should be able to manage to build and install Collapse OS without external resources (i.e. internet) on a machine of her design, built from scavenged parts with low-tech tools.

Getting started

Documentation is in text files in doc/. Begin with intro.txt.

Collapse OS can run on any POSIX platform and builds easily. See /cvm/README.md for instructions.

Alternatively, there's also Michael Schierl's JS Collapse OS emulator which is awesome and allows you to run Collapse OS from your browser, but it isn't always up to date. The "Javascript Forth" version is especially awesome: it's not a z80 emulator, but a javascript port of Collapse OS!

Organisation of this repository

  • blk: Collapse OS filesystem's content. That's actually where Collapse OS' source code is located. Everything else is peripheral.
  • cvm: A C implementation of Collapse OS, allowing it to run natively on any POSIX platform.
  • doc: Documentation.
  • arch: collection of makefiles that assemble Collapse OS on different machines.
  • tools: Tools for working with Collapse OS from "modern" environments. For example, tools for facilitating data upload to a Collapse OS machine through a serial port.
  • emul: Tools for running Collapse OS in an emulated environment.
  • tests: Automated test suite for the whole project.

Status

The project unfinished but is progressing well! See Collapse OS' website for more information.

Looking for the assembler version?

The Forth-based Collapse OS is the second incarnation of the concept. The first one was entirely written in z80 assembly. If you're interested in that incarnation, checkout the z80asm branch.