1. In the pgm2 game, orleg2, kov2nl, and kov3 support the memory card function. After the game is running, there is a "Use Memcard" jumper setting in the machine settings. The default is "No", which means that the memory card function is not used.
At this time, after entering the game, new cards will be automatically inserted for all players, and all card operations can be performed, but the emulator will not save any card content.

2. Change the "Use Memcard" jumper setting in the machine settings to "Yes", then press F3 to restart the game, you can use the memory card function, and the data of the inserted card will be automatically saved in the memcard directory when you exit the game.

3. Enter the memory card menu in the TAB menu, and press the direction up and down to switch options to create, load and exit the memory card.
Press left and right to switch memory card serial numbers (0-999), 1P/2P/3P/4P correspond to 0 4 8.../1 5 9.../2 6 10.../3 7 11... and so on. The extension of the saved card is the corresponding serial number.

4. When using the memory card function, the card data will be automatically saved when ejecting the memory card or creating or loading cards with different serial numbers.

Note 1: Only when the "Use Memcard" jumper in the machine settings is set to "Yes", the card data will be saved when exiting the game.

Note 2: After changing the "Use Memcard" jumper setting in the machine settings, be sure to restart the game for the jumper to take effect.

Thanks to RockyWall for spending a lot of time helping to find many bugs in the code and painstaking testing.

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by Creamymami