You can find on my website the result of my reverse engineering work on Little Computer People (LCP).Little Computer People reverse engineering
I did it last year, but never got time to consolidate it and put everything online.
It's mainly focused on the pseudo-artificial intelligence of the main character and the relationship with his stats (personality, metabolism, etc.).
I think the Atari version is not a direct port because some parts seem to have been rewritten (beside the conversion to 68k) and some code is bugged or disabled (unfinished ?). This is like Alternate Reality (ST), which is not not a direct port from the same coder, but written from scratch by someone else (still good, but different from the original 800XL version).
If you have any questions, feel free to ask here or on my forum.
I hope you will have as much fun to read it than i had to decompile it!