qufb

> ah, nice, I think we had one of these and a few games sent to Sean back in the day, but he didn't manage to dump the internal ROM.....

@cuavas Besides the instruction callbacks, is there anything else here that I still need to address?

Romanization of "フェリエパピー" is "Ferie Papī", so "puppy" seems more accurate than "dogs". I haven't found any box or ads where the original model is referred as anything other than...

> The Ferie box with cats in it doesn't have any word for cats anywhere. So that's probably the original model, and the puppy one came later? Likely the case,...

All Z80 core extensions are now using dedicated callbacks. If this should still be reconsidered, we can follow up on [this discussion](https://github.com/orgs/mamedev/discussions/105).

Updated. Anything else that still needs to be reviewed?

Can you point me at a reference example? In that case, peripheral addresses would have to be mapped on the devices, and there's potential for conflicts. While we can just...

I guess something like this would be fine: https://github.com/mamedev/mame/blob/2afe6115b713867c217813970f3d5c31d676a923/src/devices/bus/sg1000_exp/sg1000exp.cpp#L126 Have 2 options, one for each device, then depending on which one was passed on the cmdline, use that device for...

@ajrhacker Updated, should address your comment. Realized I could just install handlers like `base_md_cart_slot_device`, and these would take precedence over previous memory mappings, which ended up simplifying this logic.

Applied some cleanup based on suggestions I got on my other PR. Not planning on adding more to this at the moment, so feel free to review.