Xevious focused MPE player
Copyright (c) 2026 Mean Hamster Software

Original board wiring, graphics layout and PROM behavior follow MAME's
BSD-3-Clause galaga.cpp and xevious.cpp by Nicola Salmoria, mame0288.
No MAME machine, menu, driver or device framework is included.

The Z80 instruction implementation is generated from MAME commit
a54fd061922c42e0faee5f559166abe8fc82aa7c, copyright Juergen Buchmueller,
Andrei I. Holub and Andre I. Holub. The bounded platform adapters,
custom-device protocol implementation, target-chip arrangements and native
HUD are copyright (c) 2026 Mean Hamster Software.

BSD 3-Clause License

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

The owner's original programs, graphics, map PROMs and sound waveforms are
private conversion inputs and never converter/application assets. Local game
packages contain those private original-derived resources and must not be
published or redistributed. No game or MCU firmware is licensed by this text.

The Namco custom-I/O protocol and 54xx noise effects use a bounded, independently
authored game-specific implementation, not MB88xx firmware execution or a full
analog-circuit model. WSG music follows the three original Z80 programs and
owner waveform PROMs, arranged for the target SID/POKEY chips.

MHS Prism/PrismA8 components and the separately supplied KFF2 firmware retain
their own grants, upstream licenses and accompanying notices.
