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51 lines
1.9 KiB
Markdown
51 lines
1.9 KiB
Markdown
# Collapse OS
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*Bootstrap post-collapse technology*
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Collapse OS is a z80 kernel and a collection of programs, tools and
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documentation that allows you to assemble an OS that, when completed, will be
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able to:
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1. Run on an extremely minimal and improvised architecture.
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2. Communicate through a improvised serial interface linked to some kind of
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improvised terminal.
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3. Edit text files.
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4. Compile assembler source files for a wide range of MCUs and CPUs.
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5. Write files to a wide range of flash ICs and MCUs.
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6. Access data storage from improvised systems.
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7. Replicate itself.
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Additionally, the goal of this project is to be as self-contained as possible.
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With a copy of this project, a capable and creative person should be able to
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manage to build and install Collapse OS without external resources (i.e.
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internet) on a machine of her design, built from scavenged parts with low-tech
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tools.
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## Status
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The project unfinished but is progressing well! Highlights:
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* Self replicates: Can assemble itself from within itself, given enough RAM and
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storage.
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* Has a shell that can poke memory, I/O, call arbitrary code from memory.
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* Can "upload" code from serial link into memory and execute it.
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* Can manage multiple "block devices".
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* Can read and write to SD cards.
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* A z80 assembler, written in z80 that is self-assembling and can assemble the
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whole project.
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* Compact:
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* Kernel: 3K binary, 1800 SLOC.
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* ZASM: 4K binary, 2300 SLOC, 16K RAM usage to assemble kernel or itself.
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* Extremely flexible: Kernel parts are written as loosely knit modules that
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are bound through glue code. This makes the kernel adaptable to many unforseen
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situations.
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* From a GNU environment, can be built with minimal tooling: only
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[libz80][libz80], make and a C compiler are needed.
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## More information
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Go to [Collapse OS' website](https://collapseos.org) for more information on the
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project.
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[libz80]: https://github.com/ggambetta/libz80
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