From software point of view, the EAS conversion of Elite Privat / Private Line is identical to the original chesscomputer, hence I never added it to MAME. Today I added an extra view option for it.

Yes it is possible to show a decimal value in the artwork. The undo counter in chess computer drivers is like that. Or see for example the lchicken driver. Your 2nd question: Yes it's also possible I think, but more cumbersome than the other method.

~~~~~

Does someone have a CXG Sphinx Junior? I'd like to hear the beeper pitch and I couldn't find a video on Youtube.

Well, what I see there in the drivers and layouts this 'counter' works only for integer values in a fixed range (e.g. simplecounter maxstate="999" ...), but these position evaluations are decimal numbers like 2.13 or -0.78.

__________________
Meine Webseite: https://fhub.jimdofree.com/

Then multiply by 100 and modulo by 100 to get the number after the decimal point? And for the negative sign make a fake led and draw it as "-" or nothing.