Pi Itsu

8k ROM dump. Note 1E00 - 1EFF of the ROM is also mapped to IO1.

Please add a new cartridge type to support the QuickDisc+ (Quickdisk+) fastload cartridge.

I'll be referring to the linked schematic and my own experiences when talking about the 6703 PLA and Cartridge port pin assignments. The schematic was chosen because it exactly matches my MAX board revision. I understand there is a hand drawn Commodore schematic and a recreation of that by Ruud available on Zimmers also which might be related to an earlier revision of the Max boards, but I have my doubts that they relate to an actual released product. https://www.zimmers.net/anonftp/pub/cbm/schematics/computers/c64/maxschematic.jpg...

External RAM should be visible to the VIC in MAX Machine emulation mode.