Dave H

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I'll be keeping up-to-date the attached Excel file which will show which games are available and working. Note: I've decided to release the MGC built and in a cartridge case only (with exceptions for Forum members)! First orders will have an Acorn cartridge case. Once these run-out It'll be 3D printed cases. If you have your own case, let me know and I'll supply a built board only - I prefer them in-a-case because there's a large Surface Mount memory device and other SM devices used - also it's a small board and could easily be fitted the wrong way round!
What is the Mega Games Cartridge?
In a nutshell - - 4MB x 8 bits of programmable memory! In the MGC, this is organised as 256 x 16K blocks. Either 1 or 2 16K blocks can be 'visible' at any one time. It is designed to be plugged into an Electron Cartridge slot (either one) and work . . . There can be upto 254 games loaded into the MGC, however, due to a number of games requiring 2 x 16K blocks, the actual number of games will be less. Currently I have achieved 178. You can choose the Games you want from an ever growing list - see the instructions below.
Software:
The MGC comes with a pre-installed Menu program. This will allow the user to list All the games, in pages of 17, or to search, and list, Games Alphabetically, by Publisher or by Genre from a pre-defined list. There is also a suit of Utilities, to enable loading or removing the contents.
Acknowledgements:

Martin Barr, who converted his EEPROM utilities to work with the MGC. These are embedded within the Cartridge.
Ian Tomlinson, who designed the very professional MGC Label.
Jonathan Harston, for assisting me with various BASIC questions and providing a m/c FN call to speed-up the search and display routines plus the very fast ROMFS loader.
Jason Nicholls, who provided the m/c display and search routines.
David Boddie, for all the Game conversions including the compression code which reduces some games from two 16K blocks to one. The de-compression code also speeds up the game loading considerably!
Richard Toohey, for a utility to automate the Index creation. I can now do the Index creation in seconds! It took several days to do this manually

Plus everyone who knows me who has contributed with helpful hints, tips and encouragement.
Schematics: MGC Utilities Save Program: MGC User Guide: MGC Games Selection Template - Now Supports Utilities and Applications! Please follow these guidelines:
1) Download the "MGC Games Selection Template" (above - Excel Spreadsheet!).
2) Rename the spreadsheet using Your Name
3) DO NOT ALTER THE SPREADSHEET IN ANY WAY OTHER THAN AS DESCRIBED BELOW
4) Deselect games you DO NOT WANT by entering a 0 (zero) in column N against the game.
E.g. If you don't want 3D Dotty enter a 0 (zero) into cell N2
5) Carry on deselecting games until the RED cell changes to GREEN and indicates a number less than 255.
6) Return the final spread sheet to: retro hardware AT dave ej hitchins DOT plus DOT com
You can maximise the number of games you get by choosing SINGLE ROM games first! The maximum number of ROMs is 254.
Quick Start Guide: Insert the MGC into either cartridge slot - Power-up with the shift and space key held down
