https://github.com/bbbbbr/gameboy_clone_maxstation

Information, pictures and the boot rom for the Maxstation Game Boy Clone
https://github.com/bbbbbr/gameboy_clone_maxstation

Last synced: 6 months ago
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Information, pictures and the boot rom for the Maxstation Game Boy Clone

• Host: GitHub
• URL: https://github.com/bbbbbr/gameboy_clone_maxstation
• Owner: bbbbbr
• License: other
• Created: 2022-09-09T05:54:48.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-09-09T06:45:04.000Z (over 3 years ago)
• Last Synced: 2025-03-09T17:45:03.319Z (11 months ago)
• Language: Assembly
• Homepage:
• Size: 4.01 MB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          

# Overview

The "Maxstation" is a Game Boy clone, seen below next to a Game Boy Pocket.



# Some observed characteristics

* Game Boy Pocket form factor

* DMG-like CPU

* Scrolls a "Loading..." logo on power-up instead of "Nintendo". It ignores the logo in cartridge header and will display it's own even if no cartridge is inserted.

* Runs too fast (~19.2% faster), as some other clones do

* Screen has significant motion blur

* Appears to have trouble powering on if connected to another powered-on Game Boy via Link Port

* Cartridge slot does not line up well with the case 

There are markings on the cart slot ("GF Logo") which may link it to "Gang Feng" / "Kong Feng", the makers of the "GB Boy (Pocket)" and "GB Boy Colour" clones.

# Maxstation Boot ROM

The [boot ROM](/bootrom/) was dumped with help from [nitro2k](https://blog.gg8.se/wordpress/) using the BennVenn [clock glitch](https://blog.gg8.se/wordpress/2014/12/09/dumping-the-boot-rom-of-the-gameboy-clone-game-fighter/) method.

The boot ROM is largely identical to the [DMG one](https://gbdev.gg8.se/wiki/articles/Gameboy_Bootstrap_ROM) with a couple differences:

* Loads it's scrolling logo from the bootrom (itself) instead of from the cartridge header region

* Uses different logo data ("Loading...")

* Performs the logo and header checksum calculations, but skips the failure lockup tests

# Pictures