I have all the buttons hooked into the KE-72 already. I need to find a menu that lets me say that A=1st player up, B= 1st player down, etc.
So you already know that Player 1 Button 1 output an 'A' (or whatever it is... for example), right? If so, then you need to look at making a MAME controller file.
I don't know much about MAME32, but it can't be too much different from the standard MAME (which you should be using anyway with MAMEWAH). In order to do it in MAME, you would look in your mame\ctrlr folder. By default there are a couple of config files in there. Take one of those and copy it to a new name, then edit it for your own mappings.
It's not really documented too well how it's laid out but it's not too complicated once you take a look at it.
Then, once you have that file all set up, in your mame\mame.ini file, set the parameter "ctrlr" to be whatever you named the file to, minus the ".cfg" extension.
Once I'm sure this is what you need I'll write out more detailed instructions for you... if you need it
