I Must thank Doc Bacardi for the MMC64 libs.

What are those? Where can I download them?

The most important part of the 'mmc64_plugin.src' source are these 4 routines:

* MMC64Plugin_Init

Initialize the MMC64 register, save the zeropage and init the plugin
variables. This function should be called right at the start of a plugin.


* MMC64Plugin_OpenFile

Open the file selected in the filebrowser.


* MMC64Plugin_GetByte

Reads one byte from the file opened with above function.


* MMC64Plugin_Exit

Restore the zeropage and the control register, returns to the filemanager.