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48 lines
1.5 KiB
Markdown
48 lines
1.5 KiB
Markdown
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# C VM
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This is a C implementation of Collapse OS' native words. It allows Collapse OS
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to run natively on any POSIX environment.
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## Requirements
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You need `ncurses` to build the `forth` executable. In debian-based distros,
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it's `libncurses5-dev`.
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## Build
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Running `make` will yield `forth` and `stage` executables.
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## Usage
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To play around Collapse OS, you'll want to run `./forth`. Type `0 LIST` for
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help.
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The program is a curses interface with a limited, fixed size so that it can
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provide a AT-XY interface.
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You can get a REPL by launching the program with [`rlwrap(1)`][rlwrap] like
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this:
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rlwrap -e '' -m -S '> ' ./forth /dev/stdin
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## Problems?
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If the `forth` executable works badly (hangs, spew garbage, etc.),
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it's probably because you've broken your bootstrap binary. It's easy to
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mistakenly break. To verify if you've done that, look at your git status. If
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`forth.bin` is modified, try resetting it and then run `make clean all`. Things
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should go better afterwards.
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A modified `blkfs` can also break things (although even with a completely broken
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blkfs, you should still get to prompt), you might want to run `make pack` to
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ensure that the `blkfs` file is in sync with the contents of the `blk/` folder.
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If that doesn't work, there's also the nuclear option of `git reset --hard`
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and `git clean -fxd`.
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If that still doesn't work, it might be because the current commit you're on
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is broken, but that is rather rare: the repo on Github is plugged on Travis
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and it checks that everything is smooth.
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[rlwrap]: https://linux.die.net/man/1/rlwrap
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