On 2018-02-28 11:49 AM, RETRO Innovations wrote: > When control is passed to a 32kB ROM on the Coco3, does the Coco do a > jmp into the $c000 range or the $8000 range? I assume you're referring to a ROM pak? Control goes to C000 with the mapping mode set to the 16K internal/external split. (The system has no way to know what size ROM is in the slot.)