Originally Posted by Schoenfeld
[/B]ChipMap can map trapdoor memory as Chipram without having to open the computer, solder on jumpers etc. The following preconditions must apply:
- ECS Agnus must be installed
- exactly 512k trapdoor mem must be present (not more, not less)
- exactly 512k chipram must be present
If these conditions apply, the ACA500's minimal MMU can turn the computer into a 1MByte Chipram computer, completely without opening the machine. Most Rev.6 and higher boards have that config, so it'll improve WHDload compatibility even more.
I will publish this firmware later this weekend. It will show if the feature is available, and let you select the chipmem size with a menu item in the expert menu.
So 516888 bytes of trapdoor mem isn't enough I guess. It should be 524288 bytes (512 x 1024)?