MediaWiki:Sitenotice:
2025-12-29: I have restored the wiki to a backup from the end of November. Starting in September 2025, accesses went form the 800MB-1.2GB range per month to 26GB in September, 42GB in October, and 70GB in November with most accesses originating from China. As soon as I realized what was causing all the access problems in November, I shut it down (it had reached 36GB by then) behind a password/login screen. The database had gotten corrupted, and I tried a restore from just before the spike in access but that didn't work. Thus, end of November. I still have the other daily backups so if there were any important additions in December, let me know and maybe they can be recovered. - Allen H.
Game Master Cart: Difference between revisions
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{{NavHardware}} | {{NavHardware}} | ||
{{HardwareInfoBox | | {{HardwareInfoBox | | ||
| name = Game Master | | name = Game Master Cartridge (GMC) | ||
| photo = | | photo = | ||
| caption = | | caption = Game Master Cartridge (GMC) | ||
| date = | | date = February 15, 2018 | ||
| year = | | year = 2018 | ||
| notes = | | notes = Audio Sound Card for the CoCo 1,2 and 3 | ||
| infosource = | | infosource = | ||
| interface = Cartridge Slot | | interface = Cartridge Slot | ||
Revision as of 19:18, 31 May 2020
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| Looking for CoCo help? If you are trying to do something with your old Color Computer, read this quick reference. Want to contribute to this wiki? Be sure to read this first. This CoCo wiki project was started on October 29, 2004. --OS-9 Al |
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This page was last updated on 05/31/2020. Total Pages: 747. Total Files: 997.
Home / Hardware - Game Master Cart
|
MISSING PHOTO | |
| Name | Game Master Cartridge (GMC) |
|---|---|
| Date | February 15, 2018 |
| Year | 2018 |
| Interface | Cartridge Slot |
| Notes | Audio Sound Card for the CoCo 1,2 and 3 |
| Info Source | INFO SOURCE NEEDED |
| About the Hardware Info Box | |
The Game Master Cartridge (GMC) is a flash ROM cartridge with the Texas Instruments SN76489AN Digital Complex Sound Generator (DCSG)
Introduction / Tutorial Videos
- GMC Demo1 Demo and technical information
- GMC Demo2 Creating Sound from Extended Color Basic
- GMC Demo3 Creating Sound from Extended Color Basic
- GMC Demo4 Understanding Bank Switched ROM
Programming
- Programming the Game Master Cartridge - Start here documentation
- testgmc - detect if Game Master Cartridge is present
- gmcdemo.bas - demo of the GMC
- gmctool.bas - basic tooling for the GMC
- Basic tools for GMC
Demos
- GMC Demo Demo in Extended Color Basic
- Demo of cyd_gmc on real hardware
- SN76489 Music Player based on CyD
GMC-Enabled Games
- Fahrfall: Master Edition by John W. Linville, creator of the GMC
- Fahrfall: Pandemic Edition with new music, also by John W. Linville
- Dunjunz Game Master Edition by Ciaran Anscomb, author of Xroar Dragon and CoCo emulator
- In Development: 'Kiruke no Shima' or 'Circe's Island' by Steve Bamford
External References
- Game Master Cartridge Enables Better Games for Coco - introductory article about the cartridge
- Texas Instruments SN76489AN
- Game Master 1.0 to 2.0 Update Notes
- SN76489 Technical Info