Well, not openly. It's been said several times here that ElSemi has offered the code to any MAME dev that will make a concerted effort to implement it in MAME. No one has seemingly taken him up on said offer.
That being said, ElSemi was seemingly willing to share whatever info he has with those interested which led to some small improvements if I remember correctly.
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Re: Model 2 emulator 1.1
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