I'm sure you could. I'm also sure that if people who work on cps1 in mame were here they would be capable of figuring it out and telling you. But they apparently aren't here and if they are they obviously don't care to put the time in to help you out. Because you've already asked about it. You don't seem to want to put in any leg work at all beyond emuchat and when you get advice you don't like, that isn't the absolute perfect solution you want you disregard it and try to find logic to disprove it and then continue with being annoying. So like I said, good luck.