CMOS MCS-48 and UPI-41 devices re. opcodes

[Scratch.HTF]

I am currently in the process of writing an emulator for an MCS-48 compatible microcontroller and considering adapting it for the UPI-41.

From what I know, certain CMOS MCS-48 and UPI-41 devices implement additional hardware functions and/or additional instructions which can include software control for power saving; in addition, certain instructions can differ between such devices within their respective families.
The manufacturers (other than Intel) of such devices with additional and/or modified opcodes I know of are OKI (e.g. MSM80C49), NEC (e.g. uPD80C49 and uPD80C42), Toshiba (e.g. TMP80C48) and Philips (e.g. PCF84C00) - do you know of any other manufacturers (and MCS-48/UPI-41 devices thereof) with such characteristics?

[splin]

DAEWOO also licensed the 80C48/49 design:

https://www.datasheetarchive.com/pdf/download.php?id=6f66fd6a2255a08b3f025d159a16b532e1d474&type=O&term=zymos%252080c49

I rather doubt they would have altered the masks in any significant way, especially to add new instructions but maybe they did. National Semi produced the NMOS versions but I can't remember if they bothered had e CMOS versions. I'm sure I'd remember if they had their own CMOS specific instructions - but it was quite a while ago!