collapseos/emul/z80/sms/README.md

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# Sega Master System emulator
This emulates a Sega Master system with a monochrome screen and a Genesis pad
hooked to port A.
## Build
You need `xcb` and `pkg-config` to build this. If you have them, run `make`.
You'll get a `sms` executable.
## Usage
Launch the emulator with `./sms /path/to/rom` (you can use the binary from the
`sms` recipe.
This will show a window with the screen's content on it. The mappings to the
pad are:
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* W --> Up
* A --> Left
* S --> Down
* D --> Right
* H --> A
* J --> B
* K --> C
* L --> Start
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If your ROM is configured with PS/2 keyboard input, run this emulator with the
`-k` flag to replace SMS pad emulation with keyboard emulation.
In both cases (pad or keyboard), only port A emulation is supported.
Press ESC to quit.