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Virgil Dupras 1a467efae1 pcat: use a far jump to boot into the OS
Unless I misunderstood, this is supposed to set CS. This would make
all SREG have the same value. This allows us to remove BIN( offset
from os.bin.

I've tried booting to offset 0, but it didn't seem to work. Let's
settle for 0x8000. 512kb of system RAM is way more than we need
anyways.
2020-06-13 20:06:51 -04:00
blk pcat: use a far jump to boot into the OS 2020-06-13 20:06:51 -04:00
emul Clean libz80/libz80.o in make clean (#118) 2020-06-13 15:56:28 -04:00
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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

Usage documentation is in-system, so access to documentation requires you to run Collapse OS. Fortunately, doing so in an emulator is easy.

See /emul/README.md for getting an emulated system running.

Then, run 0 LIST for an introduction, follow instructions from there.

Organisation of this repository

  • blk: Collapse OS filesystem's content. That's actually where Collapse OS' source code is located. Everything else is peripheral.
  • recipes: collection of recipes that assemble Collapse OS on a specific machine.
  • 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.

Discussion

For a general discussion of Collapse OS and the ecosystem of technologies and ideas that may develop around it refer to r/collapseos

I also stick around on IRC (#collapseos on freenode).