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- # emul
-
- This folder contains a couple of tools running under the [libz80][libz80]
- emulator.
-
- ## Not real hardware
-
- In the few emulated apps described below, we don't try to emulate real hardware
- because the goal here is to facilitate "high level" development.
-
- These apps run on imaginary hardware and use many cheats to simplify I/Os.
-
- For real hardware emulation (which helps developing drivers), see the `hw`
- folder.
-
- ## Build
-
- First, make sure that the `libz80` git submodule is checked out. If not, run
- `git submodule init && git submodule update`.
-
- After that, you can run `make` and it builds the `forth` interpreter.
-
- Run `./forth` to get the COllapse OS prompt. Type `0 LIST` for help.
-
- ## Problems?
-
- If the libz80-wrapped zasm executable works badly (hangs, spew garbage, etc.),
- it's probably because you've broken your bootstrap binaries. They're easy to
- mistakenly break. To verify if you've done that, look at your git status. If
- `forth.bin` is modified, try resetting it and then run `make clean all`. Things
- should go better afterwards.
-
- If that doesn't work, there's also the nuclear option of `git reset --hard`
- and `git clean -fxd`.
-
- If that still doesn't work, it might be because the current commit you're on
- is broken, but that is rather rare: the repo on Github is plugged on Travis
- and it checks that everything is smooth.
-
- [libz80]: https://github.com/ggambetta/libz80
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