mirror of https://github.com/a2stuff/basys33.git
22 lines
1.0 KiB
Markdown
22 lines
1.0 KiB
Markdown
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# BASIS.SYSTEM for DOS 3.3 Launcher
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## Background
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[ProDOS 2.4](https://prodos8.com/) includes the [Bitsy Bye](https://prodos8.com/bitsy-bye/) program launcher. It can launch System (SYS), Binary (BIN) and BASIC (BAS) files. For other file types, if there's a `BASIS.SYSTEM` handler in the root volume, it is invoked to handle the file.
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[DOS 3.3 Launcher](http://apple2.org.za/gswv/a2zine/Docs/Dos33Launcher_Docs.txt) is a tool to run certain DOS 3.3 games (or more commonly, game cracks) under ProDOS. Launchers must be specially configured to invoke it for these DOS 3.3 files (file types $F1, $F2, $F3, $F4).
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## What's this?
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This repro includes a `BASIS.SYSTEM` implementation that takes the passed file and invokes `DOS3.3.LAUNCHER` on it. It searches for `DOS3.3.LAUNCHER` starting in the directory containing the DOS 3.3 file, and then upwards. So you can create a disk like this:
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* `PRODOS`
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* `BASIS.SYSTEM`
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* `DOS.GAMES/`
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* `DOS3.3.LAUNCHER`
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* `GAME1`
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* `GAME2`
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* ...
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And then Bitsy Bye will be able to launch them.
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